Design Manual
Vertical Stack Units
InnKeeper/HomeKeeper
Models: IKV 008 – 018 (3/4 – 1 ½ tons) HKV 016 – 048 (1 ¼ - 4 tons)
www.bulldogheatpump.com
IKV/HKV Vertical Stack Design Manual
2 © Copyright 2013 CGC Group Inc. Design Manual is subject to change without notice. Last Revised: July 2020
Table of Contents
The BULLDOG Heat Pump Advantage .......................................................................................
Components and features of the BULLDOG Vertical Stack Unit ................................................
BULLDOG Heat Pump System Design ........................................................................................
IKV/HKV Model Nomenclature ..................................................................................................
IKV/HKV Technical Information .................................................................................................
IKV/HKV General Performance ..................................................................................................
IKV/HKV Detail Drawings ...........................................................................................................
IKV/HKV Wiring Schematic ........................................................................................................
IKV/HKV Detailed Options .........................................................................................................
IKV/HKV Options and Accessories
Return Air Panels .............................................................................................
Piping Schematics ............................................................................................
Optional Riser Bundle ......................................................................................
Thermostats .....................................................................................................
IKV/HKV Guide Specification .....................................................................................................
BULLDOG Product Guide ...........................................................................................................
Please note that the HKV2 units are a part of the new Bulldog product line and
are not being released until January 2021. The HKV2 is a larger cabinet that will
include sizes 036 to 048. Until January 2021, the 036 remains in the current
cabinet size (016 to 030 in this catalogue). *
3
4
5
9
10
12
15
21
22
24
26
27
28
29
37
IKV/HKV Vertical Stack Design Manual
3 © Copyright 2013 CGC Group Inc. Design Manual is subject to change without notice. Last Revised: July 2020
The BULLDOG Heat Pump Advantage
Why use a BULLDOG Heat Pump?
CGC Group makes the BULLDOG Heat Pump, the most productive, worry-free heat pump in the building
industry.
With BULLDOG you get a heat pump that works harder, longer, with less hassle and energy than any
other heat pump on the market.
Because a Hydronic Heating system offers design flexibility and benefits that a reversing WSHP doesn’t:
It is quieter
It has better heat sharing capability
It is more reliable
It uses less electricity
It is equipped with modulating heat
40-70% lower heating costs
It has lower failure rates
It has fewer moving parts
Because a compressor that doesn’t operate in heating:
Doesn’t make any noise
Doesn’t fail
Doesn’t consume any power
Has lower operating costs
Lasts longer
A BULLDOG system delivers benefits for the building owner, the occupants, and the budget:
Dry cooler capability
Dehumidification
Smaller emergency generator
Fewer water loops
Fresh air delivered directly to occupied space
Small footprint
Chassis change out in minutes
Low flow rate
What makes the BULLDOG system different and why is this significant to
Geothermal?
The BULLDOG Geothermal system has a positive impact on the design and operation of the geothermal
field. It allows for greater design flexibility that can help bring the geothermal field back to a balanced
mode. This is accomplished with a design that allows for ALL HVAC equipment to be placed on one
common fluid loop, which prevents overheating of the geothermal field and may result in a smaller
geothermal field in cooling dominant building with significant capital cost reductions.
For more details, please refer to “Geothermal Design Guide, Benefits of the BULLDOG System”.
IKV/HKV Vertical Stack Design Manual
4 © Copyright 2013 CGC Group Inc. Design Manual is subject to change without notice. Last Revised: July 2020
Components and Features of the BULLDOG Vertical Stack Unit
The CGC Bulldog Vertical Stack heat pump unit consists of the following main components:
Sheet Metal Cabinet and Return Air Panel
Refrigeration Chassis and Optional Energy Recovery Ventilator (ERV)
Riser Bundle (when ordered)
Cabinet Features Vertical Stack cabinets are available in two sizes: InnKeeper and two HomeKeeper cabinets (size 1 for HKV016-030 and size 2 for HKV036-048). The small cabinet footprint increases the useable floor space. The Universal Cabinet can be applied with any piping arrangement (left, right or back piping) and any discharge air requirements. Unlike other manufacturers, the Bulldog cabinet is an empty sheet box without any fans or controls. This reduces the potential of construction damage or dirt accumulation. It also means that cabinets can be shipped very quickly along with riser bundles if required. Drywall can be and is normally applied directly to the cabinet since the cabinet does not contain a fan. They are available with extended bases for continuous based boards. All cabinets ship in a vertical position and can be handled by one person with a two-wheeled cart. The surface mounted Return Air Panel provides acoustic dampening and access to the chassis. Various types of return air panels are available.
The ERV cabinet is wider in order to accommodate the ERV chassis. It is available in right hand or left hand configurations. There are three sizes of ERV cabinets: InnKeeper ERV, HomeKeeper ERV cabinets (HKV016-030) and HomeKeeper 2 ERV cabinets (HKV036-048).
The BULLDOG Vertical Stack design allows for direct application of fresh air, which may eliminate the need for a dedicated outdoor air system and all of the associated ductwork. Chassis Features Vertical Stack Units are AHRI certified and are available in three sizes of chassis: InnKeeper 008 thru 018 (3/4 to 1 ½ tons) – 5 chassis capacities HomeKeeper 016 thru 030 (1 ¼ to 2.5 tons) – 4 chassis capacities HomeKeeper 036 thru 048 (3 to 4 tons) – 3 chassis capacities Unlike other heat pumps, the Bulldog chassis is a complete self-contained fully functioning unit, which makes it impossible to have any air bypass. This also means a chassis change out can be done in a matter of minutes without the need for a service technician. Riser Bundle Features Easy to install: The risers are pre-bundled with metal channel so that the risers hook onto the slip fit connection on the left, right, or back side of the cabinet.
IKV/HKV Vertical Stack Design Manual
5 © Copyright 2013 CGC Group Inc. Design Manual is subject to change without notice. Last Revised: July 2020
BULLDOG Heat Pump System Design
The BULLDOG Heat Pump System is a combination of two traditional commercial HVAC building
technologies. The system combines conventional water cooled air conditioning and hydronic space
heating, all in one package.
A BULLDOG unit operates as a fan coil in heating and a water cooled DX unit in cooling. The compressors
do not operate in the heating mode. They can cool or heat any space at any time of the year. Instead of
a refrigerant reversing valve for heating, the BULLDOG unit diverts the loop fluid to a hydronic heating
coil located inside the unit.
The loop fluid varies in temperature depending on outdoor ambient conditions. As the ambient
temperature gets colder, the loop fluid temperature is increased.
In order to have available heat at all times and in all zones, the BULLDOG loop temperature is
maintained at 85⁰F (30⁰C) at an ambient temperature above 55⁰F; this will enable any unit to produce a
minimum of 30% of its rated heating capacity. As the outside air temperature falls below 55⁰F (13⁰C) the
loop temperature is increased. The nominal rate of increase is 0.40 degree increase in loop temperature
for every degree drop in ambient. As such the loop temperature will be 104⁰F (40⁰C) at 8⁰F (-13⁰C)
outside.
The advantage of the BULLDOG system is that the heating/cooling ratios can be tailored to the actual
loads. To optimize the efficiency of the system the reset rate can be adjusted to follow loading. For
example: when the cooling requirements of each zone are much higher than the heating loads, the set
point reset rate can range from .25 to .40 degree increase per degree drop in ambient. Then at 15⁰F
ambient, the loop temperature would be less than 100⁰F. Similarly, installations such as a seniors
residence where heating is the dominant load, the set point reset rate can be steeper, perhaps as high
as .75 degrees per degree ambient drop. Additionally, the set point reset rate start point can be moved
several degrees higher or lower to suit the application.
The CGC Group offers a
prepackaged system controller
that is programmed to
accommodate most system
arrangements. Custom sequences
can be programmed into the
panel. The BULLDOG system
controller has Modbus RTU and
can be connected to a BACnet
interface, allowing for it to be
integrated into most BAS systems
provided by others.
IKV/HKV Vertical Stack Design Manual
6
© Copyright 2013 CGC Group Inc. Design Manual is Subject to Change without Notice. Last Revised: July 2020
Heating Cycle
The BULLDOG System’s straightforward design derives maximum efficiency from existing principles.
The heating cycle consists of a high efficiency fan motor drawing air over a simple hot water coil. This is
the same mechanism employed by common fan coil units. Because the water loop temperature is
scheduled to outdoor air temperature, maximum heat output is available when it is most needed (ie. –
when it is coldest outside). As the outdoor air temperature rises, loop water temperatures are lowered
to gain cooling efficiency.
Cooling Cycle
The best HVAC designs are only as good as the level of comfort they provide. Here the BULLDOG System
once again excels, making cooling available year round through an ultra-quiet design.
The compressors are connected through a refrigeration piping system to a standard DX cooling coil. The
heat removed from the air is rejected from the unit into the water loop via simple condenser.
IKV/HKV Vertical Stack Design Manual
7
© Copyright 2013 CGC Group Inc. Design Manual is Subject to Change without Notice. Last Revised: July 2020
Low Water Flow
We use better condensers than other manufacturers.
All manufacturers of regular WSHP use the heat exchanger on the left. It’s a coaxial condenser and must
also operate as an evaporator in the heating mode. The Bulldog is optimized for cooling mode only by
utilizing a more effective condenser – the shell and tube on the right.
Effective capacity at only 2gpm/ton
Results:
Smaller pumps
Smaller cooling towers
Smaller pipes
Less electrical consumption
Can tolerate higher EWT (125⁰F)
Can operate with a Dry Cooler instead of Evaporative Tower thereby eliminating water make up and water treatment chemicals (and the threat of Legionella)
Potentially smaller geothermal field
Less prone to fouling
Coaxial Condenser
Shell and Tube
Condenser
IKV/HKV Vertical Stack Design Manual
8
© Copyright 2013 CGC Group Inc. Design Manual is Subject to Change without Notice. Last Revised: July 2020
FreeHeat™
FreeHeat™ is defined as the process of reclaiming the heat generated within a building to directly satisfy
the heating needs of the building, without additional energy input.
The BULLDOG Heat Pump System conserves heat within the fluid loop instead of rejecting it to the
atmosphere through a heat sink. This FreeHeat™ can then be used for various building heating
requirements. Even with elevated fluid temperatures (maximum 125⁰F), the BULLDOG Heat Pump is still
able to perform mechanical cooling.
An example of how the BULLDOG design can take advantage of FreeHeat™ is for treating ventilation air.
The cost to treat make up air constitutes a significant portion of the buildings total annual energy
budget. Many buildings operate gas fired Make-Up Air units while simultaneously rejecting condenser
heat to a heat sink. The energy consumed by the heat sink or tower can be significant. With the
BULLDOG System, FreeHeat™ is used to treat the fresh air instead of rejecting the heat. This eliminates
the consumption of a fuel source to heat the fresh air during shoulder season.
IKV/HKV Vertical Stack Design Manual
9
© Copyright 2013 CGC Group Inc. Design Manual is Subject to Change without Notice. Last Revised: July 2020
IKV/HKV Model Nomenclature
00
84
: R4
10
a0
10
(21
)C
on
den
sate
Ov
erfl
ow
Sen
sor
01
00
20
(24
)M
ou
nti
ng
3rd
par
ty c
on
tro
ller
01
20
30
(41
)D
eman
d f
low
w/a
uto
flo
w v
alv
e
01
5 (1
)0
40
(42
)A
uto
Flo
w V
alv
e
01
8 (1
)0
50
(44
)C
oo
lin
g O
nly
un
it
(54
C)
Deh
um
idif
icat
ion
co
ntr
ol
wit
h C
on
stan
t fl
ow
01
6(5
4D
)D
ehu
mid
ific
atio
n c
on
tro
l w
ith
Dem
and
flo
w
02
0(6
1)
EC
M (2
)
02
4(6
8.1
)1
" M
ER
V 7
Fil
ter
03
0(7
1)
Inte
grat
ed E
RV
Co
re (3
)
03
6
04
2
04
8
C-0
: U
niv
ersa
l C
abin
et (
IKV
an
d H
KV
01
6-0
30
)(5
)
C2
-0:
Un
iver
sal
Cab
inet
(H
KV
03
6-0
48
)(8
6)
E-1
: I
nte
grat
ed E
RV
Cab
inet
(w
ith
Rig
ht
Han
d E
RV
) fo
r IK
V a
nd
HK
V0
16
-03
0(9
0.X
)
E-2
: I
nte
grat
ed E
RV
Cab
inet
(w
ith
Lef
t H
and
ER
V)
for
IKV
an
d H
KV
01
6-0
30
E2
-1:
In
tegr
ated
ER
V C
abin
et (
wit
h R
igh
t H
and
ER
V)
for
HK
V0
36
-04
8
E2
-2:
In
tegr
ated
ER
V C
abin
et (
wit
h L
eft
Han
d E
RV
) fo
r H
KV
03
6-0
48
(84
)L
ock
ing
Hin
ged
Ret
urn
Air
Pan
el (4
)
(92
)T
wo
pie
ce R
etu
rn A
ir P
anel
(93
)T
hre
e p
iece
Ret
urn
Air
Pan
el
No
tes:
(1)
I
KV
01
5 &
IK
V0
18
are
on
ly a
vail
ab
le w
ith
PSC
mo
tors
(2)
H
om
eKee
per
un
its
com
e w
ith
co
nst
an
t to
rqu
e E
C m
oto
r a
s st
an
da
rd
(3)
W
hen
ER
V i
s se
lect
ed, l
arg
er c
ab
inet
is
req
uir
ed
(4)
M
inim
um
2”
ba
se e
xten
sio
n i
s re
qu
ired
fo
r H
ing
ed R
etu
rn A
ir P
an
els
(5)
R
efe
r to
IK
V/H
KV
deta
iled
op
tio
n l
ist
-2:
Hin
ges
are
on
th
e ri
ght
RA
Pa
ne
l T
yp
e
UP
:
Pan
el f
or
Un
iver
sal
Cab
inet
EP
: P
anel
fo
r In
tegr
ated
ER
V C
abin
et
A: C
ust
om
Op
tio
ns
B: 2
08
/23
0 –
1 –
60
CH
AS
SIS
NO
ME
NC
LA
TU
RE
Mo
de
lN
om
. Ca
pa
city
(x1
00
0 B
TU
/h
)
Ele
ctri
cal
Su
pp
ly
(V -
Ph
- H
z)R
efr
ige
ran
tP
rod
uct
Re
vis
ion
Op
tio
ns
Co
mm
on
Op
tio
ns
(5)
D: 2
65
/27
7 –
1 –
60
HK
V
(Ho
me
Ke
ep
er)
G: 2
40
–1
– 6
0
IKV
(In
nK
ee
pe
r)
A: 1
15
-1-6
0S:
Sta
nd
ard
Un
it
(IK
V0
08
, IK
V0
10
& I
KV
01
2 o
nly
)X
: Op
tio
ns
Req
uir
ed
CA
BIN
ET
NO
ME
NC
LA
TU
RE
Mo
de
lC
ab
ine
t T
yp
eC
om
mo
n O
pti
on
s (5
)
IK
(In
nK
ee
pe
r C
ab
ine
t)L
EE
D P
ack
agin
g
HK
2 (
Ho
me
Ke
ep
er0
36
-04
8 R
A P
an
el)
Mo
de
l
IK
(In
nK
ee
pe
r R
A P
an
el)
Co
mm
on
Op
tio
ns
(5)
Arr
an
ge
me
nt
-0:
Sli
p L
ock
Pan
el (
no
hin
ges)
Bas
e E
xten
sio
n (4
)
Ele
ctri
cal
Rec
epta
cle
HK
(H
om
eK
ee
pe
r C
ab
ine
t)
HK
(H
om
eK
ee
pe
r01
6-0
30
RA
Pa
ne
l)
RE
TU
RN
AIR
PA
NE
L N
OM
EN
CL
AT
UR
E
-1:
Hin
ges
are
on
th
e le
ft
IKV/HKV Vertical Stack Design Manual
10
© Copyright 2013 CGC Group Inc. Design Manual is Subject to Change without Notice. Last Revised: July 2020
InnKeeper/HomeKeeper – Technical Information
IKV
00
8IK
V0
10
IKV
01
2IK
V0
15
IKV
01
8H
KV
01
6H
KV
02
0H
KV
02
4H
KV
03
0H
KV
03
6H
KV
04
2H
KV
04
8
cfm
28
03
20
36
04
50
54
05
00
60
07
20
90
01
,08
01
,26
01
,44
0
(l/s
)(1
32
)(1
51
)(1
70
)(2
12
)(2
55
)(2
36
)(2
83
)(3
40
)(4
25
)(5
10
)(5
95
)(6
80
)
BT
U/
hr
8,5
11
9,3
74
11
,49
81
4,5
59
14
,87
61
5,1
76
18
,22
92
4,1
21
27
,30
53
8,3
71
43
,49
24
8,3
01
(kW
)(2
.49
)(2
.75
)(3
.37
)(4
.27
)(4
.36
)(4
.45
)(5
.34
)(7
.07
)(8
.00
)(1
1.2
4)
(12
.74
)(1
4.1
5)
14
.71
3.9
13
.21
4.5
12
.91
5.1
16
.11
4.9
15
.51
6.3
14
.81
3.9
BT
U/
hr
11
,37
11
3,5
84
15
,74
41
6,7
60
17
,47
72
0,7
66
23
,73
32
6,8
77
31
,45
74
2,2
08
47
,22
45
1,8
77
(kW
)(3
.33
)(3
.98
)(4
.61
)(4
.91
)(5
.12
)(6
.08
)(6
.95
)(7
.87
)(9
.22
)(1
2.3
7)
(13
.84
)(1
5.2
0)
Fa
n S
ect
ion
PS
C m
oto
r1
/31
/31
/31
/31
/3N
AN
AN
AN
AN
AN
AN
A
EC
mo
tor
1/1
01
/10
1/1
0N
AN
A1
/31
/31
/31
/31
/23
/43
/4
Ty
pe
Siz
e &
Qu
an
tity
Un
it's
To
tal
Wa
ter
Vo
lum
eU
S g
al
(L)
0.6
35
(2
.4)
0.6
35
(2
.4)
0.7
14
(2
.7)
0.7
14
(2
.7)
0.7
14
(2
.7)
1.0
43
(3
.95
)1
.29
3 (
4.8
9)
1.2
93
(4
.89
)1
.29
3 (
4.8
9)
1.4
30
(5
.41
)2
.20
8 (
8.3
6)
2.2
08
(8
.36
)
Re
frig
era
nt
(41
0a
) ch
arg
eo
z. (
kg
)2
7 (
0.7
7)
27
(0
.77
)3
0 (
0.8
5)
35
(0
.99
)4
5 (
1.2
8)
32
(0
.91
)3
5 (
0.9
9)
40
(1
.13
)4
5 (
1.2
8)
50
(1
.42
)6
0 (
1.7
0)
60
(1
.70
)
Fo
rwar
d C
urv
ed D
WD
I x1
2 r
ow
s /
12
FP
I3
ro
ws
/ 1
2 F
PI
2 r
ow
s /
12
FP
I
1"
thic
k P
leat
ed
16
"x2
5",
1 f
ilte
r1
6"x
20
", 2
fil
ters
1"
thic
k P
leat
ed
2 r
ow
s /
12
FP
I
Scro
ll x
1
Shel
l an
d T
ub
e x
1
Ho
me
Ke
ep
er
PE
RF
OR
MA
NC
E
ME
CH
AN
ICA
L I
NF
OR
MA
TIO
N
DX
Co
il, H
ea
tin
g C
oil
an
d F
ilte
r
Co
mp
ress
or
an
d C
on
de
nse
r
1/2
" M
PT
x 1
8"
3/4
" ID
Ho
se
Sta
nd
ard
Re
turn
Air
Fil
ter
He
ati
ng
Co
il -
No
of
Ro
ws
/ F
PI
2 r
ow
s /
12
FP
I
2 r
ow
s /
12
FP
I
Wir
e F
ram
e
14
"x1
6.7
5"
, 1 f
ilte
r
(1)
Co
oli
ng
Cap
acit
ies
bas
ed u
po
n 8
0.6
°F D
B, 6
6.2
°F W
B e
nte
rin
g ai
r te
mp
era
ture
, EW
T o
f 8
6°F
.
All
un
its
test
ed w
ere
eq
uip
ped
wit
h E
C m
oto
rs e
xcep
t IK
V0
15
an
d I
KV
01
8 w
hic
h w
ere
eq
uip
ped
wit
h P
SC m
oto
rs.
(2)
Hea
tin
g C
apac
itie
s b
ased
up
on
68
°F e
nte
rin
g ai
r te
mp
era
ture
, EW
T o
f 1
20
°F, 2
gpm
/ t
on
an
d n
om
inal
air
flo
w
Co
mp
ress
or
Ty
pe
& Q
ua
nti
ty
Su
pp
ly /
Re
turn
Ho
se s
ize
1/2
" M
PT
x 1
8"
Co
nd
en
sate
dra
in3
/4"
ID H
ose
EE
R (
ISO
13
25
6-1
) (1
)
No
min
al
Air
flo
w
Co
oli
ng
Ca
pa
city
(IS
O 1
32
56
-1)
(1)
He
ati
ng
Ca
pa
city
at
No
min
al
Air
flo
w (2
)
Inn
Ke
ep
er
Ro
tary
x 1
Ro
tary
x 1
Shel
l an
d T
ub
e x
1
Ty
pe
& Q
ua
nti
tyF
orw
ard
Cu
rved
SW
SI x
1
Fa
n M
oto
r P
ow
er
Ra
tin
g (
hp
)
1/2
" M
PT
x 1
8"
3/4
" ID
Ho
se
Shel
l an
d T
ub
e x
1C
on
de
nse
r T
yp
e &
Qu
an
tity
3 r
ow
s /
12
FP
I
2 r
ow
s /
12
FP
I
Wir
e F
ram
e
14
"x1
6.7
5"
, 1 f
ilte
r
DX
Co
il -
No
of
Ro
ws
/ F
PI
IKV/HKV Vertical Stack Design Manual
11
© Copyright 2013 CGC Group Inc. Design Manual is Subject to Change without Notice. Last Revised: July 2020
InnKeeper/HomeKeeper – Technical Information
IKV
00
8IK
V0
10
IKV
01
2IK
V0
15
IKV
01
8H
KV
01
6H
KV
02
0H
KV
02
4H
KV
03
0H
KV
03
6H
KV
04
2H
KV
04
8
Ty
pe
Siz
e
11
5V
- 1
Ph
- 6
0 H
z9
.2/1
5.0
10
.4/1
5.0
13
.4/1
5.0
NA
NA
NA
NA
NA
NA
NA
NA
NA
20
8V
- 1
Ph
- 6
0 H
z5
.1/1
5.0
5.8
/15
.07
.4/1
5.0
10
.2/1
5.0
10
.3/1
5.0
11
.3/2
0.0
12
.7/2
0.0
17
.1/2
0.0
20
.2/3
0.0
24
.3/3
0.0
29
.9/4
0.0
35
.4/4
0.0
26
5V
- 1
Ph
- 6
0 H
z4
.0/1
5.0
4.5
/15
.05
.8/1
5.0
8.0
/15
.08
.1/1
5.0
8.9
/20
.01
0.0
/20
.01
3.5
/20
.01
5.9
/20
.01
9.1
/25
.02
3.4
/30
.02
7.8
/40
.0
Dim
ensi
on
s (L
x W
x H
)
Wei
gh
t, l
bs
(kg
)
Dim
ensi
on
s (L
x W
x H
)
Wei
gh
t, l
bs
(kg
)
Dim
ensi
on
s (L
x W
x H
)
Wei
gh
t, l
bs
(kg
)1
25
(5
7)
12
5 (
57
)1
25
(5
7)
15
0 (
68
)1
50
(6
8)
18
0 (
82
)1
80
(8
2)
18
0 (
82
)1
80
(8
2)
18
0 (
82
)1
80
(8
2)
18
0 (
82
)
Dim
ensi
on
s (L
x W
x H
)
Wei
gh
t, l
bs
(kg
)
ME
CH
AN
ICA
L I
NF
OR
MA
TIO
N
Inn
Ke
ep
er
Ho
me
Ke
ep
er
17
5 (
80
)
18
" x
18
" x
57
" (4
57
x 4
57
x 1
44
8m
m)
9"
x 1
8"
x 5
7"
(22
8 x
45
7 x
14
48
mm
)
80
(3
6)
24
" x
25
" x
84
" (6
10
x 6
35
x 2
13
3m
m)
Co
nsu
lt f
acto
ry
24
" x
35
" x
84
" (6
09
x 8
89
x 2
13
3m
m)
Co
nsu
lt F
acto
ry
22
.5"
x 2
2"
x 6
4"
(57
2 x
55
9 x
16
26
mm
)
9"
x 1
8"
x 5
7"
(22
8 x
45
7 x
14
48
mm
)
Co
nsu
lt F
acto
ry
Co
un
ter-
flo
w p
late
hea
t ex
chan
ger
10
0 C
FM
at
0.2
5 i
n. w
.g. E
SP
Sup
ply
an
d E
xhau
st B
low
er, C
on
stan
t V
olu
me
EC
Mo
tor
Wir
e F
ram
e
8"
x 7
"
ER
V
EL
EC
TR
ICA
L I
NF
OR
MA
TIO
N
PH
YSI
CA
L D
ET
AIL
S
Inte
gra
ted
ER
V C
ab
ine
t w
ith
Sa
tan
da
rd R
etu
rn A
ir P
an
el
8"
x 7
"
Air
Fil
ters
(Ex
ha
ust
an
d F
resh
Air
)
Wir
e F
ram
e
Un
it's
MC
A/
MO
P
Fa
n M
oto
r
ER
V9
" x
13
" x
48
" (2
28
x 3
30
x 1
21
9m
m)
60
(2
7)
Ch
ass
is1
3"x
16
" x
48
" (3
30
x 4
06
x 1
21
9m
m)
14
" x
18
" x
84
" (
35
5 x
45
7 x
21
33
mm
)
11
0 (
50
)
14
" x
27
" x
84
" (3
55
x 6
86
x 2
13
3m
m)
15
0 (
68
)
20
" x
20
.5"
x 8
4"
(50
8 x
52
1 x
21
33
mm
)
13
5 (
61
)
20
" x
29
.5"
x 8
4"
(50
8 x
74
9 x
21
33
mm
)
Un
ive
rsa
l C
ab
ine
t w
ith
Sta
nd
ard
Re
turn
Air
Pa
ne
l
Sup
ply
an
d E
xhau
st B
low
er, C
on
stan
t V
olu
me
EC
Mo
tor
ER
V C
ore
ty
pe
Co
un
ter-
flo
w p
late
hea
t ex
chan
ger
Ma
xim
um
Air
flo
w5
0 C
FM
at
0.2
5 i
n. w
.g. E
SP
IKV/HKV Vertical Stack Design Manual
12
© Copyright 2013 CGC Group Inc. Design Manual is Subject to Change without Notice. Last Revised: July 2020
InnKeeper/HomeKeeper – General Performance
IKV
00
8IK
V0
10
IKV
01
2IK
V0
15
IKV
01
8IK
00
8IK
01
0IK
01
2H
KV
01
6H
KV
02
0H
KV
02
4H
KV
03
0H
KV
03
6H
KV
04
2H
KV
04
8
Air
Flo
w(C
FM
)2
59
32
34
10
44
84
64
28
03
20
36
05
00
60
07
20
90
01
,08
01
,26
01
,44
0
Flu
id F
low
(gp
m)
1.4
1.7
22
.53
1.4
1.7
22
.83
.54
56
78
Tota
l Cap
acit
y(BTU
/h)
8,0
83
9,3
07
11
,71
51
4,3
87
16
,56
98
,27
79
,44
61
1,7
15
16
,12
91
8,3
60
24
,23
62
7,4
03
38
,33
54
3,4
83
48
,31
5
Sen
sib
le(BTU
/h)
6,4
57
7,7
80
9,9
50
11
,33
31
2,5
49
6,9
01
7,8
74
9,2
65
13
,07
21
5,1
62
18
,89
62
2,0
21
29
,11
13
3,5
58
37
,86
0
Tota
l Po
we
r(W
)5
76
71
78
74
1,0
45
1,2
25
53
76
74
82
99
01
1,1
29
1,6
08
2,1
73
2,3
64
2,7
48
3,2
54
LAT
(DB
/WB
)(oF)
57
.6/5
6.8
58
.4/5
7.6
58
.2/5
7.4
57
.3/5
6.5
55
.7/5
4.9
57
.9/5
7.1
57
.9/5
7.1
56
.9/5
6.1
56
.5/5
5.7
57
.3/5
6.5
56
.4/5
5.6
58
.0/5
7.2
55
.8/5
5.0
56
.1/5
5.2
56
.4/5
5.6
14
.01
3.0
13
.41
3.8
13
.51
5.4
14
.01
4.1
17
.91
6.3
15
.11
2.6
16
.21
5.8
14
.8
Tota
l Cap
acit
y(BTU
/h)
2,1
87
2,6
12
3,0
28
3,2
23
3,3
61
2,2
94
2,6
00
2,8
02
3,9
93
4,5
64
5,1
69
6,0
49
8,1
17
9,0
82
9,9
76
Tota
l Po
we
r(W
)1
20
14
01
45
18
02
20
82
97
10
05
58
21
23
53
43
00
41
15
53
LAT
(oF)
77
.87
7.5
76
.87
6.6
76
.77
7.6
77
.57
7.2
77
.47
7.0
76
.67
6.2
76
.97
6.6
76
.4
LWT
(oF)
76
.97
6.9
77
.07
7.4
77
.87
6.7
76
.97
7.2
77
.17
7.4
77
.47
7.6
77
.37
7.4
77
.5
Tota
l Cap
acit
y(BTU
/h)
7,8
13
8,9
90
11
,37
01
3,9
56
16
,05
38
,00
59
,13
01
1,3
74
15
,66
91
7,8
06
23
,44
42
6,5
75
33
,25
24
2,1
63
46
,85
8
Sen
sib
le(BTU
/h)
6,4
06
7,7
19
9,8
84
11
,25
01
2,1
87
6,8
49
7,8
14
9,1
99
12
,98
41
5,0
56
18
,74
42
1,8
63
27
,43
13
2,4
81
36
,63
9
Tota
l Po
we
r(W
)6
03
74
99
14
1,1
01
1,2
82
56
57
06
86
99
58
1,1
90
1,7
15
2,2
86
2,4
79
2,9
01
3,4
38
LAT
(DB
/WB
)(oF)
57
.8/5
7.0
58
.5/5
7.7
58
.4/5
7.6
57
.4/5
6.6
56
.4/5
5.6
58
.1/5
7.3
58
.1/5
7.3
57
.0/5
6.2
56
.7/5
5.9
57
.5/5
6.7
56
.6/5
5.8
58
.2/5
7.4
57
.2/5
6.4
56
.8/5
6.0
57
.1/5
6.3
12
.91
2.0
12
.41
2.7
12
.51
4.2
12
.91
3.1
16
.41
5.0
13
.71
1.6
13
.41
4.5
13
.6
Tota
l Cap
acit
y(BTU
/h)
3,2
80
3,9
18
4,5
42
4,8
35
5,0
42
3,4
41
3,9
00
4,2
03
5,9
90
6,8
46
7,7
53
9,0
74
12
,17
61
3,6
22
14
,96
5
Tota
l Po
we
r(W
)1
20
14
01
45
18
02
20
82
97
10
05
58
21
23
53
43
00
41
15
53
LAT
(oF)
81
.78
1.2
80
.28
0.0
80
.08
1.3
81
.28
0.8
81
.08
0.5
79
.97
9.3
80
.48
0.0
79
.6
LWT
(oF)
80
.38
0.4
80
.58
1.1
81
.68
0.1
80
.48
0.8
80
.78
1.1
81
.18
1.4
80
.98
1.1
81
.3
Tota
l Cap
acit
y(BTU
/h)
7,5
29
8,6
66
11
,01
21
3,5
34
15
,52
67
,71
98
,80
61
1,0
20
15
,21
81
7,2
41
22
,64
12
5,7
26
32
,16
34
0,8
17
45
,37
5
Sen
sib
le(BTU
/h)
6,2
27
7,5
02
9,6
18
11
,17
01
2,0
86
6,7
94
7,7
52
9,1
32
12
,65
71
4,9
48
18
,59
02
1,2
67
26
,70
23
2,2
23
36
,35
5
Tota
l Po
we
r(W
)6
32
78
29
54
1,1
60
1,3
40
59
37
39
90
81
,01
61
,25
21
,82
22
,40
82
,62
83
,06
33
,63
4
LAT
(DB
/WB
)(oF)
57
.0/5
6.2
57
.9/5
7.1
57
.9/5
7.1
56
.4/5
5.6
55
.2/5
4.4
57
.4/5
6.6
57
.4/5
6.6
56
.4/5
5.6
56
.9/5
6.1
57
.2/5
6.4
56
.3/5
5.5
57
.0/5
6.2
57
.0/5
6.2
56
.0/5
5.2
56
.2/5
5.4
11
.91
1.1
11
.51
1.7
11
.61
3.0
11
.91
2.1
15
.01
3.8
12
.41
0.7
12
.21
3.3
12
.5
Tota
l Cap
acit
y(BTU
/h)
4,3
73
5,2
25
6,0
55
6,4
46
6,7
22
4,5
88
5,1
99
5,6
04
7,9
87
9,1
28
10
,33
71
2,0
99
16
,23
41
8,1
63
19
,95
3
Tota
l Po
we
r(W
)1
20
14
01
45
18
02
20
82
97
10
05
58
21
23
53
43
00
41
15
53
LAT
(oF)
85
.68
4.9
83
.68
3.3
83
.38
5.1
85
.08
4.3
84
.78
4.0
83
.28
2.4
83
.98
3.3
82
.8
LWT
(oF)
83
.88
3.9
83
.98
4.8
85
.58
3.4
83
.98
4.4
84
.38
4.8
84
.88
5.2
84
.68
4.8
85
.0
EC
Mo
tor
Co
oli
ng
: 8
0.6
/66
.2⁰F
(D
B/W
B)
EA
T, H
eati
ng
: 7
0⁰F
EA
T, W
ate
r O
nly
, 0.2
5 i
nch
W.G
. Ext
ern
al
Sta
tic
Pre
ssu
re
Co
oli
ng
: 8
0.6
/66
.2⁰F
(D
B/W
B)
EA
T, H
eati
ng
: 7
0⁰F
EA
T, W
ate
r O
nly
, 0.2
5 i
nch
W.G
. Ext
ern
al
Sta
tic
Pre
ssu
re
Co
oli
ng
: 8
0.6
/66
.2⁰F
(D
B/W
B)
EA
T, H
eati
ng
: 7
0⁰F
EA
T, W
ate
r O
nly
, 0.2
5 i
nch
W.G
. Ext
ern
al
Sta
tic
Pre
ssu
re
PS
C M
oto
r
80
⁰F E
WT
85
⁰F E
WT
90
⁰F E
WT
Mo
de
l
COOLING
Op
era
tin
g EE
R
HEATING HEATINGCOOLING
Op
era
tin
g EE
R
HEATING COOLING
Op
era
tin
g EE
R
IKV/HKV Vertical Stack Design Manual
13
© Copyright 2013 CGC Group Inc. Design Manual is Subject to Change without Notice. Last Revised: July 2020
InnKeeper/HomeKeeper – General Performance
IKV
00
8IK
V0
10
IKV
01
2IK
V0
15
IKV
01
8IK
00
8IK
01
0IK
01
2H
KV
01
6H
KV
02
0H
KV
02
4H
KV
03
0H
KV
03
6H
KV
04
2H
KV
04
8
Air
Flo
w(C
FM
)2
59
32
34
10
44
84
64
28
03
20
36
05
00
60
07
20
90
01
,08
01
,26
01
,44
0
Flu
id F
low
(gp
m)
1.4
1.7
22
.53
1.4
1.7
22
.83
.54
56
78
Tota
l Cap
acit
y(BTU
/h)
6,9
39
8,0
01
10
,24
21
2,6
79
14
,44
57
,12
58
,14
11
0,2
60
14
,30
71
6,0
83
21
,02
42
3,9
43
29
,87
23
8,0
52
42
,29
9
Sen
sib
le(BTU
/h)
6,1
14
7,3
74
9,4
71
10
,79
01
1,5
75
6,5
45
7,4
70
8,8
13
12
,48
21
4,4
37
17
,93
42
0,9
25
26
,26
43
1,0
87
35
,07
2
Tota
l Po
we
r(W
)6
89
84
91
,03
71
,28
91
,45
76
51
80
69
91
1,1
43
1,3
76
2,0
39
2,6
80
2,9
62
3,4
24
4,0
69
LAT
(DB
/WB
)(oF)
58
.8/5
8.0
59
.5/5
8.7
59
.3/5
8.5
58
.4/5
7.6
57
.6/5
6.8
59
.1/5
8.3
59
.1/5
8.3
58
.0/5
7.2
57
.6/5
6.8
58
.4/5
7.6
57
.6/5
6.8
59
.2/5
8.4
58
.2/5
7.4
57
.9/5
7.1
58
.2/5
7.3
10
.19
.49
.99
.89
.91
0.9
10
.11
0.4
12
.51
1.7
10
.38
.91
0.1
11
.11
0.4
Tota
l Cap
acit
y(BTU
/h)
6,5
60
7,8
37
9,0
83
9,6
69
10
,08
36
,88
27
,79
98
,40
51
1,9
80
13
,69
21
5,5
06
18
,14
82
4,3
51
27
,24
52
9,9
29
Tota
l Po
we
r(W
)1
20
14
01
45
18
02
20
82
97
10
05
58
21
23
53
43
00
41
15
53
LAT
(oF)
93
.49
2.4
90
.48
9.9
90
.09
2.7
92
.59
1.5
92
.19
1.0
89
.88
8.6
90
.88
9.9
89
.2
LWT
(oF)
90
.69
0.8
90
.99
2.3
93
.39
0.2
90
.89
1.6
91
.49
2.2
92
.29
2.7
91
.99
2.2
92
.5
Tota
l Cap
acit
y(BTU
/h)
6,6
43
7,6
64
9,8
23
12
,22
81
3,8
92
6,8
27
7,8
04
9,8
46
13
,82
81
5,4
92
20
,22
52
2,9
97
28
,66
43
6,6
36
40
,68
8
Sen
sib
le(BTU
/h)
5,9
32
7,3
10
9,1
93
10
,70
41
1,4
69
6,4
88
7,4
06
8,5
60
12
,15
01
4,3
24
17
,78
12
0,3
11
25
,51
23
0,8
16
34
,76
3
Tota
l Po
we
r(W
)7
19
88
41
,08
11
,36
01
,51
66
81
84
11
,03
41
,21
31
,43
92
,14
72
,83
33
,15
13
,62
54
,30
9
LAT
(DB
/WB
)(oF)
59
.4/5
8.6
59
.7/5
8.9
59
.9/5
9.1
58
.6/5
7.8
57
.8/5
7.0
59
.2/5
8.4
59
.3/5
8.5
58
.7/5
7.9
58
.2/5
7.4
58
.6/5
7.8
57
.8/5
7.0
59
.8/5
9.0
58
.8/5
8.0
58
.1/5
7.3
58
.3/5
7.5
9.2
8.7
9.1
9.0
9.2
10
.09
.39
.51
1.4
10
.89
.48
.19
.11
0.1
9.4
Tota
l Cap
acit
y(BTU
/h)
7,6
53
9,1
43
10
,59
71
1,2
81
11
,76
48
,02
99
,09
99
,80
61
3,9
77
15
,97
41
8,0
90
21
,17
32
8,4
10
31
,78
63
4,9
17
Tota
l Po
we
r(W
)1
20
14
01
45
18
02
20
82
97
10
05
58
21
23
53
43
00
41
15
53
LAT
(oF)
97
.39
6.1
93
.89
3.2
93
.39
6.4
96
.29
5.1
95
.89
4.5
93
.29
1.7
94
.29
3.3
92
.3
LWT
(oF)
94
.19
4.2
94
.49
6.0
97
.29
3.5
94
.39
5.2
95
.09
5.9
96
.09
6.5
95
.59
5.9
96
.3
EC
Mo
tor
Co
oli
ng
: 8
0.6
/66
.2⁰F
(D
B/W
B)
EA
T, H
eati
ng
: 7
0⁰F
EA
T, W
ate
r O
nly
, 0.2
5 i
nch
W.G
. Ext
ern
al
Sta
tic
Pre
ssu
re
PS
C M
oto
r
Co
oli
ng
: 8
0.6
/66
.2⁰F
(D
B/W
B)
EA
T, H
eati
ng
: 7
0⁰F
EA
T, W
ate
r O
nly
, 0.2
5 i
nch
W.G
. Ext
ern
al
Sta
tic
Pre
ssu
re1
05
⁰F E
WT
10
0⁰F
EW
T
HEATING COOLING
Op
era
tin
g EE
R
HEATINGCOOLING
Op
era
tin
g EE
R
Mo
de
l
IKV/HKV Vertical Stack Design Manual
14
© Copyright 2013 CGC Group Inc. Design Manual is Subject to Change without Notice. Last Revised: July 2020
InnKeeper/HomeKeeper – General Performance
IKV
00
8IK
V0
10
IKV
01
2IK
V0
15
IKV
01
8IK
00
8IK
01
0IK
01
2H
KV
01
6H
KV
02
0H
KV
02
4H
KV
03
0H
KV
03
6H
KV
04
2H
KV
04
8
Air
Flo
w(C
FM
)2
59
32
34
10
44
84
64
28
03
20
36
05
00
60
07
20
90
01
,08
01
,26
01
,44
0
Flu
id F
low
(gp
m)
1.4
1.7
22
.53
1.4
1.7
22
.83
.54
56
78
Tota
l Cap
acit
y(BTU
/h)
6,3
51
7,3
26
9,3
76
11
,74
71
3,3
33
6,5
33
7,4
67
9,4
05
13
,32
11
4,8
93
19
,44
02
2,0
09
27
,40
93
5,1
98
39
,01
5
Sen
sib
le(BTU
/h)
5,8
77
7,0
90
9,1
08
10
,39
61
1,1
38
6,2
97
7,1
87
8,4
75
12
,05
31
4,2
10
17
,28
42
0,1
21
25
,27
23
0,5
40
34
,44
3
Tota
l Po
we
r(W
)7
49
91
91
,12
71
,43
71
,57
67
12
87
51
,08
01
,28
91
,50
22
,25
42
,99
83
,35
63
,84
14
,56
6
LAT
(DB
/WB
)(oF)
59
.6/5
8.8
60
.3/5
9.5
60
.1/5
9.3
59
.2/5
8.4
58
.5/5
7.7
59
.9/5
9.1
59
.9/5
9.1
58
.9/5
8.1
58
.4/5
7.6
58
.8/5
8.0
58
.5/5
7.7
60
.0/5
9.2
59
.0/5
8.2
58
.3/5
7.5
58
.6/5
7.8
8.5
8.0
8.3
8.2
8.5
9.2
8.5
8.7
10
.39
.98
.67
.38
.29
.28
.5
Tota
l Cap
acit
y(BTU
/h)
8,7
47
10
,44
91
2,1
11
12
,89
21
3,4
44
9,1
76
10
,39
91
1,2
07
15
,97
41
8,2
56
20
,67
42
4,1
98
32
,46
83
6,3
26
39
,90
6
Tota
l Po
we
r(W
)1
20
14
01
45
18
02
20
82
97
10
05
58
21
23
53
43
00
41
15
53
LAT
(oF)
10
1.2
99
.99
7.2
96
.59
6.7
10
0.2
10
0.0
98
.79
9.4
98
.09
6.5
94
.89
7.7
96
.69
5.5
LWT
(oF)
97
.59
7.7
97
.99
9.7
10
1.0
96
.99
7.8
98
.89
8.6
99
.69
9.7
10
0.3
99
.29
9.6
10
0.0
Tota
l Cap
acit
y(BTU
/h)
5,8
01
6,6
58
8,3
88
10
,66
51
2,1
95
5,9
79
6,8
00
8,4
29
12
,18
71
3,6
79
17
,94
61
9,8
78
24
,74
43
2,2
64
35
,44
9
Sen
sib
le(BTU
/h)
5,6
47
6,6
58
8,3
88
9,9
73
10
,69
75
,97
96
,80
08
,11
51
1,5
94
13
,67
91
6,9
98
19
,28
02
4,2
41
29
,37
13
3,0
66
Tota
l Po
we
r(W
)8
11
99
01
,22
81
,61
11
,69
87
74
94
71
,18
01
,46
01
,63
02
,46
63
,37
43
,82
24
,32
45
,13
5
LAT
(DB
/WB
)(oF)
60
.5/5
9.7
61
.6/6
0.4
61
.7/6
0.3
60
.1/5
9.3
59
.4/5
8.6
60
.9/5
9.9
61
.0/6
0.0
59
.8/5
9.0
59
.2/5
8.4
59
.6/5
8.8
58
.8/5
8.0
60
.9/6
0.1
59
.9/5
9.1
59
.1/5
8.3
59
.4/5
8.6
7.2
6.7
6.8
6.6
7.2
7.7
7.2
7.1
8.3
8.4
7.3
5.9
6.5
7.5
6.9
Tota
l Cap
acit
y(BTU
/h)
10
,93
31
3,0
62
15
,13
91
6,1
15
16
,80
51
1,4
70
12
,99
91
4,0
09
19
,96
72
2,8
20
25
,84
33
0,2
47
40
,58
54
5,4
08
49
,88
2
Tota
l Po
we
r(W
)1
20
14
01
45
18
02
20
82
97
10
05
58
21
23
53
43
00
41
15
53
LAT
(oF)
10
9.0
10
7.3
10
4.1
10
3.2
10
3.3
10
7.8
10
7.4
10
5.9
10
6.8
10
5.1
10
3.1
10
1.0
10
4.6
10
3.2
10
1.9
LWT
(oF)
10
4.4
10
4.6
10
4.9
10
7.1
10
8.8
10
3.6
10
4.7
10
6.0
10
5.7
10
7.0
10
7.1
10
7.9
10
6.5
10
7.0
10
7.5
EC
Mo
tor
PS
C M
oto
r
Co
oli
ng
: 8
0.6
/66
.2⁰F
(D
B/W
B)
EA
T, H
eati
ng
: 7
0⁰F
EA
T, W
ate
r O
nly
, 0.2
5 i
nch
W.G
. Ext
ern
al
Sta
tic
Pre
ssu
re
Co
oli
ng
: 8
0.6
/66
.2⁰F
(D
B/W
B)
EA
T, H
eati
ng
: 7
0⁰F
EA
T, W
ate
r O
nly
, 0.2
5 i
nch
W.G
. Ext
ern
al
Sta
tic
Pre
ssu
re
11
0⁰F
EW
T
HEATING COOLING
Op
era
tin
g EE
R
HEATING
12
0⁰F
EW
T
COOLING
Op
era
tin
g EE
R
Mo
de
l
IKV/HKV Vertical Stack Design Manual
15
© Copyright 2013 CGC Group Inc. Design Manual is Subject to Change without Notice. Last Revised: July 2020
IKV Universal Cabinet – Detail Drawing
IKV/HKV Vertical Stack Design Manual
16
© Copyright 2013 CGC Group Inc. Design Manual is Subject to Change without Notice. Last Revised: July 2020
IKV ERV Cabinet – Detail Drawing
IKV/HKV Vertical Stack Design Manual
17
© Copyright 2013 CGC Group Inc. Design Manual is Subject to Change without Notice. Last Revised: July 2020
HomeKeeper Universal Cabinet (HKV016-030) – Detail Drawing
IKV/HKV Vertical Stack Design Manual
18
© Copyright 2013 CGC Group Inc. Design Manual is Subject to Change without Notice. Last Revised: July 2020
HomeKeeper ERV Cabinet (HKV016-030) – Detail Drawing
IKV/HKV Vertical Stack Design Manual
19
© Copyright 2013 CGC Group Inc. Design Manual is Subject to Change without Notice. Last Revised: July 2020
HomeKeeper 2 Universal Cabinet (HKV036-048) – Detail Drawing
HKV2 UNIT WILL NOT BE RELEASED UNTIL JANUARY 2021 *
IKV/HKV Vertical Stack Design Manual
20
© Copyright 2013 CGC Group Inc. Design Manual is Subject to Change without Notice. Last Revised: July 2020
HomeKeeper 2 ERV Cabinet (HKV036-048) – Detail Drawing
HKV2 UNIT WILL NOT BE RELEASED UNTIL JANUARY 2021 *
IKV/HKV Vertical Stack Design Manual
21
© Copyright 2013 CGC Group Inc. Design Manual is Subject to Change without Notice. Last Revised: July 2020
IKV/HKV Wiring Schematic
IKV/HKV Vertical Stack Design Manual
22
© Copyright 2013 CGC Group Inc. Design Manual is Subject to Change without Notice. Last Revised: July 2020
InnKeeper/HomeKeeper – Detailed Options
MISCELLANEOUS: Option Available Description Option notes
2 IKV/ HKV Extended 5 year compressor warranty
This option provides an extended compressor only warranty for an additional 4 years. Shipping costs are not included. (parts only)
3 IKV / HKV Extended 5 year refrigerant circuit warranty
This option provides an extended warranty for an additional 4 years for all refrigeration components including the compressor, the evaporator, the condenser, the TX valve, and the pressure switches. It does not include piping or refrigerant. Shipping costs are not included (parts only).
5 IKV / HKV LEED Packaging Shipping packaging materials that meet the LEED requirements.
REFRIGERATION: Option Available Description Option notes
10 HKV 024-048
Two step scroll This option provides for two stage cooling capability through a two-step, single compressor that provides 30% capacity reduction when operating on first stage. (70% capacity). Internal controls are included to provide two stage operations. A two-stage thermostat is required. This is not available with option 40.
15 IKV / HKV Sight glass This option provides a sight glass in the refrigeration circuit
CONTROLS: Option Available Description Option notes
20 IKV / HKV Aux heating stage Heating output is tied to aux input. It is used for aux heat in some other part of space.
21 IKV / HKV Condensate overflow protection
This option will provide a solid state condensate sensor that will terminate cooling operation if the drain-pan level rises too high. Condensate overflow alarm changes the state of the alarm lockout relay for remote monitoring.
22 IKV / HKV Set up to 230 V/1 Select this option if the units are to operate at 230 volts single phase.
24 IKV / HKV Mount third party DDC
Select this option to have third party DDC controllers mounted on or in the unit. Included is a box to hold the controller and isolation transformer if there is no available space. Alarm signal will be provided to the DDC controller. The controller transmits calls and lockout signals to the onboard heat pump controller. The controller will be installed inside the cabinet above the chassis.
WATER SIDE: Option Available Description Option notes
40 IKV / HKV Pump or valve flow control signal
Select this option to provide a 24VAC signal for the control of a valve or a pump (supplied by others) to provide flow only during a heating or cooling call. Not available with option 10. Consult factory.
41 IKV / HKV Demand flow control
This option is required for variable volume pumping systems. This option also provides an auto flow valve which is an automatic throttling valve that controls the amount of water through the unit when it is either heating or cooling.
41A IKV / HKV Demand flow - auto flow valve not included
This option is required for variable volume pumping systems. Auto flow valve is not included with this option.
41H IKV / HKV Demand flow Hays flow control valve
This option is required for variable volume pumping systems. A Hays auto flow valve is used instead of the standard auto flow valve and is used as an automatic throttling valve that controls the amount of water through the unit when it is either heating or cooling.
42 IKV / HKV Auto flow limiting control
This option provides an auto flow valve which is an automatic throttling valve that controls the amount of water through the unit when it is either heating or cooling.
42H IKV / HKV Hays auto flow limiting control
This option provides a Hays auto flow valve to our standard unit. The auto flow valve is an automatic throttling valve that controls the amount of water through the unit when it is either heating or cooling.
44 IKV / HKV Cooling only unit This option provides a water-regulating valve. The unit becomes a demand flow unit. Heating coil is omitted.
46 IKV / HKV In-Floor supplemental heating package
This COMFORTZONE option provides built in valves and controls to connect to a supplemental in-floor heating system. The in-floor heating mode operates as the first stage of heat. Only available with factory supplied risers as the valve is mounted to the riser.
IKV/HKV Vertical Stack Design Manual
23
© Copyright 2013 CGC Group Inc. Design Manual is Subject to Change without Notice. Last Revised: July 2020
InnKeeper/HomeKeeper – Detailed Options
WATER SIDE:
Option Available Description Option notes
54C IKV /
HKV
Dehumidification
control with
constant flow
This option provides the heating coil in the reheat position for dehumidification. Internal controls are
provided but a thermostat/humidistat is required. Thermostat must utilize a third output to energize
dehumidification. Thermostats that activate simultaneously the heat and cool calls to energize
dehumidification will not work. Autoflow valve not included.
54D IKV /
HKV
Dehumidification
control with
demand flow
This option provides the heating coil in the reheat position for dehumidification. Internal controls are
provided but a thermostat/humidistat is required. Thermostat/humidistat must utilize a third output
to energize dehumidification. Thermostats that activate simultaneously the heat and cool calls to
energize dehumidification will not work. Autoflow valve not included.
59 IKV /
HKV
7/8” Condensate
hose
This option provides the unit with a 3/4” condensate hose – swaged on one end to 7/8”.
AIRSIDE: Option Available Description Option notes
61 IKV EC Motor (ECM) This option provides an EC motor on IKV units. (Standard on HKV Units) IKV015 and IKV018 change to a HKV016 and HKV020 respectively.
61E HKV 016-048
Constant volume EC motor
Select this option for an EC motor that provides constant volume on direct drive units. Consult factory on details regarding voltage, speed and size requirements. Must choose at the time of order.
65 IKV / HKV High speed fan This option is a single speed fan and allows the heat pump to run on high speed for heat calls, cool calls, and fan only calls. It can provide high CFM capability at all times.
68.1 IKV / HKV 1” MERV 7 or 8 filters
This option provides 1” MERV 7 or 8 filters as opposed to the standard filters.
VERTICAL STACK SPECIFIC: Option Available Description Option notes
71 IKV / HKV Energy Recovery
Ventilator
This option provides an Integrated Energy Recovery Ventilator (ERV) for vertical stack units. It includes
an extended cabinet to accommodate modified chassis, heat exchanger core, and the fan box
assembly. The ERV runs with the chassis fan. ERV fans are constant volume EC type.
71R IKV / HKV Energy recovery
ventilator with
relay
This option is the same as above but also provides a 120 volt relay in the cabinet to interlock with a
120V bathroom timer switch to turn on ERV. Wired by others. Must use the SC5811 or the 5010
thermostat. Bathroom switch not included.
83 IKV / HKV Motorized fresh
air damper
Select this option to have a motorized fresh air damper in the IKV or HKV cabinets, which is controlled
from heat pump and actuator (24V). Consult factory if controls are done by others.
84 IKV / HKV Hinged front
panel with lock
and frame
This option provides a hinged access door with lock and frame. Requires Option 90 for minimum 2”
base extension.
85 IKV / HKV Hinged front
panel with frame
This option provides a hinged access door with frame. Requires option 90 with minimum 2” base
extension.
86 IKV / HKV Electrical
receptacle
This option provides an electrical receptacle with the vertical stack cabinets.
87.X IKV / HKV Thermostat cable
included with
cabinet
This option provides thermostat cable for quick connection in field. Ordered by 5ft increments up to
50ft.
88 IKV / HKV Garden hose
connection
This option provides garden hose connections on all chassis supply and return lines for connection to
factory risers built before 2012.
89 IKV / HKV 24” Supply/
return hoses
This option provides 24-inch supply and return hoses for vertical stack units.
90.X IKV / HKV Base extension This option provides a base extension to the cabinet. Measured from the base of the chassis to bottom
of the base. Ordered by inches with 2” minimum up to a 12” maximum.
92 IKV / HKV 2 piece RA panel This provides a return air panel with boot and punched grill.
93 IKV / HKV 3 piece RA panel This provides a return air panel with separate punch grill and boot.
IKV/HKV Vertical Stack Design Manual
24
© Copyright 2013 CGC Group Inc. Design Manual is Subject to Change without Notice. Last Revised: July 2020
IKV/HKV Options and Accessories – Return Air Panels
Standard
Standard Return Air Panel with a return opening and boot
Option 84
Hinged Return Air Panel with lock, frame and boot. Requires a minimum 2” base extension (option 90)
IKV/HKV Vertical Stack Design Manual
25
© Copyright 2013 CGC Group Inc. Design Manual is Subject to Change without Notice. Last Revised: July 2020
IKV/HKV Options and Accessories – Return Air Panels
Option 92
Two Piece Return Air Panel with boot and punched grille
Option 93
Three Piece Return Air Panel with boot and separate
punched grille
IKV/HKV Vertical Stack Design Manual
26
© Copyright 2013 CGC Group Inc. Design Manual is Subject to Change without Notice. Last Revised: July 2020
IKV/HKV Options and Accessories – Piping Schematics
Standard Demand Flow Control (Option 41)
Dehumidification – Constant Flow (Option 54C) Dehumidification – Demand Flow (Option 54D)
IKV/HKV Vertical Stack Design Manual
27
© Copyright 2013 CGC Group Inc. Design Manual is Subject to Change without Notice. Last Revised: July 2020
IKV/HKV Options and Accessories – Optional Riser Bundle
IKV/HKV Vertical Stack Design Manual
28
© Copyright 2013 CGC Group Inc. Design Manual is Subject to Change without Notice. Last Revised: July 2020
IKV/HKV Options and Accessories – Thermostats
MODEL DESCRIPTION
SC2010L
Single stage heat / cool
Single stage heat pump
No Auxiliary Heat
Non-Programmable
Manual Change Over (MCO)
Large display with backlight
SC3010L Single stage heat / cool
Single stage heat pump
No Auxiliary Heat
Programmable
Manual Change Over (MCO)
Large display with backlight
SC4010L Single stage heat / cool
Single stage heat pump
No Auxiliary Heat
Non-Programmable
Automatic / Manual Change Over (ACO/ MCO)
Large display with backlight
SC4811L 2-stage heat / cool
Single or dual stage heat pump
With Auxiliary Heat
Non-Programmable
Automatic / Manual Change Over (ACO/ MCO)
Large display with backlight
SC5010L (ERV Compatible) Single stage heat / cool
Single stage heat pump
No Auxiliary Heat
Programmable
Automatic/ Manual Change Over (ACO/ MCO)
Large display with backlight
SC5811L (ERV Compatible) 2-stage heat / cool
Single or dual stage heat pump
With Auxiliary Heat
Programmable
Automatic/ Manual Change Over (ACO/ MCO)
Large display with backlight
IKV/HKV Vertical Stack Design Manual
29
© Copyright 2013 CGC Group Inc. Design Manual is Subject to Change without Notice. Last Revised: July 2020
InnKeeper/HomeKeeper Models “IKV/HKV” Guide Specifications
Part 1: General 1.1 The HVAC system is based on BULLDOG Heat Pump System. 1.2 The system will automatically provide the availability of heating or cooling functions 24 hours a day, 365 days a year without need for changeover. 1.3 Model selection and performance shall be in accordance with the schedule on the drawings. 1.4 Mechanical cooling shall be enabled with Entering Condenser Water below 125⁰F and 2 GPM/ton. 1.5 Each unit/chassis shall be pressure tested with Nitrogen on both the refrigerant and fluid (water) circuits followed by a helium leak detection program for both circuits. Units are then attached to the vacuum system for at least 2 hours and monitored. 1.6 Each unit shall be run tested for a minimum of 15 minutes with a water/glycol solution to ensure 100% functionality in all
modes of operation. Individual units/chassis shall be self-contained and complete when shipped from the factory. 1.7 Units shall be safety certified and bear a seal of approval from one of UL/ULC/ETL or ESA. All units must be AHRI certified and meet ASHRAE 90.1 minimum standard. 1.8 Manufacturer shall warrant the parts only of each unit for a period of 12 months from the start-up date or 18 months from the unit shipment date whichever occurs first. 1.9 Commissioning of the BULDOG units shall be performed by a CGC trained technician. A commissioning report shall be provided by the commissioning technician for review and approval by the owner’s representative. 1.10 It is the contractor’s responsibility to have the fluid system properly flushed and cleaned prior to commissioning. 1.11 Alternate proposals shall include consideration for equipment space requirements, pipe and equipment sizing, electrical installation impact, operation costs, sound implications and redesign fees.
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© Copyright 2013 CGC Group Inc. Design Manual is Subject to Change without Notice. Last Revised: July 2020
Part 2: Mechanical Parts
2.0 Cabinets
2.1.1. The cabinets are fabricated with heavy gauge
galvanized steel with all interior of the cabinet lined
with ½” acoustic insulation shipped as one complete
enclosure.
2.1.2. The supply air openings shall be pre-punched
knockout panels to allow easy field selection of
available discharge arrangements.
2.1.3. The cabinet shall be designed for direct
application of drywall. Studs are only required on the
risers side.
2.1.4. The contractor shall ensure unit cabinet is
plumb prior to application of drywall.
2.1.5. The universal cabinet is configured on site for
either right or left handed units.
2.1.6. Cabinet shall be equipped with electrical box for
accepting plug from chassis, wiring and receptacle by
other.
*(Optional) Receptacles can be provided – wiring by others.
*(Optional) A baffle shall be installed to provide blocking of sight and sound between adjacent rooms –
baffles are field installed by others.
2.1.7. The cabinet shall ship in an enclosed truck to avoid insulation getting wet in transit, tarps not
recommended.
2.2 Return Air Panel
2.2.1. The surface mounted front panel shall provide acoustic dampening, front return air and access to
facilitate normal unit maintenance and service.
2.2.2. The front panel shall be constructed of heavy gauge steel lined with ½” acoustic insulation.
Standard off-white factory painted finish.
2.2.3. A return opening and boot shall be provided in the front panel to allow air to enter at floor level.
(Optional) other panel options are available upon request.
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© Copyright 2013 CGC Group Inc. Design Manual is Subject to Change without Notice. Last Revised: July 2020
2.3 Chassis
2.3.1. The chassis must be a complete self-
contained unit. Fan and motor integral to
cabinet is not acceptable.
2.3.2. The chassis shall be complete with
refrigeration circuit, hydronic circuit, blower
assembly, controls and an internal corrosion
resistant stainless steel insulated condensate
drain pan with condensate drain. P-trap is
fashioned by factory provided condensate
hose in the field.
2.3.3. The chassis shall be fabricated with
insulated separate blower and compressor
sections to minimize compressor sound
transmission. Manufacturers shall provide
Ultra Quiet Acoustical Package.
2.3.4. The chassis shall be complete with a
control access cover. The cover shall be easily
removable to provide access to controls.
2.3.5. The service panel shall be easily
removable and sufficiently large to allow
access to all refrigeration components.
Contractor shall verify location of service
panels and assure access.
2.3.6. The chassis shall be completely
removable by disconnecting supply and return
hoses, condensate hose, thermostat terminal
block and line voltage plug-in power
connection.
2.3.7. The chassis shall be complete with
braided flexible hoses rated at 400psi for supply
and return connections. A clear reinforced
condensate hose/trap shall be provided with
the chassis. The trap must be visible by simply
removing the front panel.
2.3.8. The plug connection shall provide
positive disconnect of main power to chassis.
2.3.9. The contractor shall ensure chassis
including complete operating system, blower
and controls is removable with adequate
service and access clearance.
2.4 Blower and Motor
2.4.1. The complete blower section including
motor shall be easily accessible and removable
for service.
2.4.2. The blower shall be statically and
dynamically balanced.
2.4.3. The blower motor shall be direct drive,
single phase with integral thermal overload
protection with standard PSC motor for sizes
008 to 018 and EC motor for HomeKeeper units.
*(Optional) EC motors are available on
InnKeeper units sizes 008-012.
2.4.4. The blower shall be direct drive forward
curved, SWSI centrifugal blower for IKV units
and DWDI for HKV units.
2.5 Filter
2.5.1. The filter chamber shall be an integral
part of the system located on return air path
and should be serviceable from the front of the
unit.
2.5.2. The filter shall be standard capacity,
polyester type shipped with chassis.
*(Optional) 1” MERV 7 filter
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© Copyright 2013 CGC Group Inc. Design Manual is Subject to Change without Notice. Last Revised: July 2020
2.6 Heating Loop
2.6.1. The refrigerant circuit shall not operate
in the heating mode.
2.6.2. Heating coil shall be
aluminum fin and copper tube
construction rated to
withstand 300 PSI working
pressure.
*(Optional) The heating coil
can be mounted in the reheat
position for dehumidification
– humidistat by others.
*(Optional) For cooling only
units, the heating coil can be
omitted. This option provides a water-
regulating valve.
Part 3: Refrigeration Parts
3.1 Refrigeration System
3.1.1. The refrigeration circuit shall be available
for operation on non-ozone depleting R410a
refrigerant. Refrigeration circuit does not
operate in heating mode. Reversing type heat
pump unit manufacturer must supply a life time
of Parts and Labour Warranty on the reversing
valve.
3.1.2. The refrigeration circuit shall have the
following components:
Thermal Expansion Valve with external equalizer
Filter dryer
High pressure cut-out
High pressure service port
Low pressure cut-out
Low pressure service port
*(Optional) Sight glass
3.1.3. The service ports shall be located to
facilitate field service with unit in place.
3.1.4. All refrigerant piping shall be of type ACR
copper pipe.
3.1.5. The refrigerant circuit and components
shall be factory assembled in a sealed, leak and
performance tested, properly charged system.
3.1.6. The sealed refrigerant circuit shall be
certified for 600 PSIG working condensing
pressure.
3.2 Compressor
3.2.1. The compressor shall be high efficient
sealed hermetic rotary type for sizes 008-024
and scroll type for sizes 030-048.
3.2.2. The compressor shall be externally
isolated on rubber mounts and connected to
refrigerant circuit with floating piping to
minimize sound transmission.
3.2.3. The compressor motor shall have integral
thermal overload protection.
3.2.4. The compressor shall not operate in the
heating mode.
3.2.5. The compressor shall be provided with a
5 minute restart delay to avoid compressor
short cycling and low pressure lockout.
3.3 Direct Expansion Evaporator Coil
3.3.1. The refrigerant to air heat exchanger shall
be aluminum fin and copper tube construction
rated to withstand 470 PSI refrigerant working
pressure.
3.3.2. The coil shall have a maximum face
velocity of 500 FPM.
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© Copyright 2013 CGC Group Inc. Design Manual is Subject to Change without Notice. Last Revised: July 2020
3.3.3. A stainless steel condensate drain pan
shall be provided under the coil.
.4Condenser Module I
3.4 Water Cooled Condenser Module
The condenser shall be high efficiency
refrigerant-to-water heat exchanger of copper
inner water tube, minimum ½” diameter and
steel refrigerant outer shell rated to withstand
600 PSI refrigerant working pressure and 300
PSI water pressure.
3.5 Valve Configuration – Factory Installed
All units shall be supplied with a 3 way valve for
continuous flow.
* (Optional) For variable water flow pumping
systems, all units shall be supplied with a flow
limiting device and two 2 way control valves (1
for heating and 1 for cooling). If the system is
bottom fed, all units at the top of each riser
shall only be supplied with a standard 3 way
valve for continuous water flow.
Part 4: Control Systems
4.1 System
4.1.1. The unit shall be complete with a
standard microprocessor controlled electronic
circuit board.
4.1.2. The control panel shall be supplied with
individual 24 VAC control transformer.
4.1.3. The control panel shall have LED
indicators displaying thermostat call, unit
operation and alarms.
4.1.4. The control board shall operate with:
A 24 volt thermostat
Onboard fuse protection
4.1.5 A remote alarm contact available for
connection to alarm monitor by others –
monitored and wired by others.
4.1.6 BMS override function available to disable
compressor only or disable unit. BMS override
and wiring by others.
*(Optional) 3rd party provided BACnet
controllers supplied by others can be installed
and wired inside the cabinet above the chassis.
*(Optional) Condensate High Level Monitor and
alarm is available.
*(Optional) Different types of BULLDOG
thermostats are available upon request.
4.2 Alarms
The standard Control Panel shall have the
following standard alarms:
Low coil temperature
High leaving water temperature
Low discharge air temperature
Low refrigerant pressure
High refrigerant pressure High condensate level (Sensor Optional)
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© Copyright 2013 CGC Group Inc. Design Manual is Subject to Change without Notice. Last Revised: July 2020
Part 5: Risers (Optional)
5.1.1. The supply and return risers shall be
type “M” copper. Type “L” copper it optional.
The condensate riser shall be 1” diameter type
“M” copper.
*(Optional) Closed cell pipe
insulation: 3/8”, or 1/2” or 1”
5.1.2. Each riser to be supplied
with factory swaged expanded
top end to accept risers from the
unit above and to minimize field
brazing.
*(Optional) Non-swaged ends
are optional.
5.1.3. The supply and return
risers shall be factory supplied
with service isolation ball valves.
5.1.4. The risers shall be pre-bundled with
metal channel so that the riser hooks onto the
slip fit connection to the left, right, or back side
of the cabinet.
5.1.5. The copper risers shall be isolated from
the metal channel and cabinet with neoprene
isolation. Risers shall not make metal to metal
contact with housing.
5.1.6. The riser diameter shall be as shown on
plans. Riser length and schedule shall be
coordinated with the mechanical contractor.
5.1.7. It is the responsibility of the supplier of
the risers to provide a “Riser Schedule”
indicating riser diameters, lengths, options, unit
size and location.
Part 6: Integrated ERV (Optional)
6.1 System Description
6.1.1. The Energy Recovery Ventilators shall be
an integrated part of the Vertical Stack Cabinet
and is based on the BULLDOG Heat Pump
System. The integrated ERV will consist of a fan
box with an exhaust and fresh hair fan and an
ERV core.
6.1.2. The entire ERV unit shall be completely
removable and accessible from the cabinet`s
front panel.
6.1.3. The system will automatically provide
fresh air to the space when the Vertical Stack
chassis main supply fan operates. The
integrated ERV utilizes an exhaust and fresh air
fan as well as a passive energy recovery core.
The ERV fans will operate whenever there is a
call for heating or cooling from the thermostat,
when the thermostat fan selector switch is in
the "ON" position or when a remote, field
supplied and installed by others, dry contact
switch is closed. (Remote switch is optional).
6.1.4. Airflow System:
The exhaust air enters the top of the integrated ERV whenever the exhaust air
fan is operational. If the Vertical Stack
chassis main supply fan is off, air from the
washroom exhaust fan (by others) bypasses
the ERV core and is expelled outside. If the
Vertical Stack main supply fan is on then the
exhaust bypass damper closes forcing
exhaust air to pass through the integrated
ERV core which is then expelled outside.
The ERV fresh air fan draws outside air into
the integrated ERV core and heat and
moisture (from the exhaust air) is passed
through to the fresh air.
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© Copyright 2013 CGC Group Inc. Design Manual is Subject to Change without Notice. Last Revised: July 2020
The fresh air is released inside the Vertical stack unit cabinet where the main supply fan draws it into the chassis and distributes it to the space.
In the unlikely event of frost build up on the ERV core, a fresh air discharge air temperature sensor will momentarily stop the fresh air fan unit the air returns to the normal limit.
6.1.5. Model selection and performance shall
be in accordance with the schedule on the
drawings. The InnKeeper (008-018) Integrated
ERV is designed to exhaust 50 CFM (23 L/s) of
air at an ESP of 0.25" (62 Pa) W.C.
6.1.6. The HomeKeeper (016-048) Integrated
ERV is designed to exhaust 100 CFM (47 L/s) of
air at an ESP of 0.25" (62 Pa) W.C.
6.1.7. Each ERV shall be run tested to verify
proper operation.
6.1.8. The Integrated ERV/Chassis assembly
shall be safety certified and bear a seal of
approval from one of UL/ULC/ETL or ESA.
6.1.9. Manufacturer shall warrant the parts
only of each unit for a period of 12 months from
the start-up date or 18 months from the unit
shipment date whichever occurs first.
6.1.10. The system shall never be used during
the construction phase as fine dust can
permeate the ERV core resulting in loss or
performance, or failure.
6.1.11. Alternate proposals shall include
consideration for equipment space
requirements accessibility, pipe and equipment
sizing electrical installation impact, operation
costs, sound implications and redesign fees.
6.2 Cabinet
6.2.1. The Integrated ERV Cabinet shall be
constructed from heavy gauge galvanized steel
and has internal channels to direct air from the
exhaust and fresh air through the ERV core.
6.2.2. The cabinet incorporates a bypass
damper to allow exhaust air to exit the building
if the ERV exhaust fan is off.
6.3 ERV Fan Box
6.3.1. The Integrated ERV fan box shall be
fabricated from heavy gauge galvanized steel.
6.3.2. The ERV Fan Box connected electrically
to the vertical stack chassis via a two-piece pin
and socket interconnection. Connection by
others.
6.4 ERV Core
6.4.1. The ERV Core consist of a membrane
constructed from a composite polymer material
that allows heat and water vapor to transfer
from one air stream to the other while
preventing cross contamination.
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© Copyright 2013 CGC Group Inc. Design Manual is Subject to Change without Notice. Last Revised: July 2020
6.4.2. The core shall be encased in a heavy
gauge galvanized steel shell and all exterior
shell sides are insulated with 1/4" neoprene
insulation.
6.4.3. The openings of the core shall be treated
with a gasket to ensure tight seal with the air
stream channels in the cabinet.
6. 5 Blower and Motor
6.5.1. The ERV fresh air and exhaust air blowers
shall be statically and dynamically balanced.
6.5.2. The complete blower section including
motor shall be easily accessible and removable
for service.
6.5.3. The blower motors shall be direct drive
EC motor, single phase with integral thermal
overload protection.
6.5.4. The blower wheels shall be a forward
curbed, SWSI centrifugal blower.
6.5.5. The fresh air and exhaust air fans speeds
are controlled by a single fan speed controller
that is adjustable in the field.
6.6 Filter
6.6.1. Both the exhaust and supply air stream
entering the ERV core is filtered.
6.6.2. The filters shall be a cleanable wire frame
type and easily accessible. They are shipped
with the ERV fan box.
6.7 System
6.7 System
6.7.1. The ERV unit shall be controlled by the
Vertical Stack unit chassis. The Vertical Stack
main supply fan must be operating in order for
the ERV apparatus to operate. Other sequence
of operations are available as options.
6.7.2. ERV fans will be enabled to operate:
On a call for heating from the thermostat
On a call for cooling from the thermostat When thermostat fan selector switch is placed in the "ON" mode When a field mounted remote control switch, by others is closed (wired by
others, for 120 volt by others).
6.7.3. The ERV fan box is powered by line
voltage supplied from the Vertical Stack unit
chassis.
6.7.4. The defrost sensor will detect a frost
build up on the heat exchanger based on
temperature and will terminate the operation
of the fresh air fan until the temperature
restores to normal limits (above 45⁰F).
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© Copyright 2013 CGC Group Inc. Design Manual is Subject to Change without Notice. Last Revised: July 2020
BULLDOG Product Guide
Our factory located in Fergus, Ontario, Canada
CGC Group of Companies, Inc.
150 Britannia Road E, Unit 1
Mississauga, Ontario, Canada L4Z 2A4
1-888-220-5551 | 1-905-568-1661
www.bulldogheatpump.com