-
Manufacturer reserves the right to discontinue, or change at any
time, specifications or designs without notice and without
incurring obligations.Catalog No. 04-53500094-01 Printed in U.S.A.
Form 50PC-3SI Pg 1 3-11 Replaces: 50PC-2SI
Installation, Start-Up, andService Instructions
CONTENTSPage
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . .
.1,2GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . 2INSTALLATION . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . 2-22Step 1 Check Jobsite . . . . . . .
. . . . . . . . . . . . . . . . . 2Step 2 Check Unit . . . . . . .
. . . . . . . . . . . . . . . . . . . . 2 STORAGE PROTECTION
INSPECT UNITStep 3 Locate Unit . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . 7 FIELD CONVERSION OF DISCHARGE AIRStep 4
Mount the Unit . . . . . . . . . . . . . . . . . . . . . . . . . 8
HORIZONTAL UNITS VERTICAL UNITSStep 5 Check Duct System . . . . . .
. . . . . . . . . . . . . . 8 SOUND ATTENUATION EXISTING DUCT
SYSTEMStep 6 Install Condensate Drain . . . . . . . . . . . . . . .
8 HORIZONTAL UNITS VERTICAL UNITS VENTINGStep 7 Pipe Connections .
. . . . . . . . . . . . . . . . . . . . . 9 WATER LOOP APPLICATIONS
GROUND LOOP APPLICATIONS INSTALLATION OF SUPPLY AND RETURN HOSE
KITStep 8 Wire Field Power Supply . . . . . . . . . . . . . . 10
POWER CONNECTION SUPPLY VOLTAGE 208-VOLT OPERATION 460-VOLT
OPERATIONStep 9 Wire Field Controls . . . . . . . . . . . . . . . .
. . . . 20 THERMOSTAT CONNECTIONS WATER FREEZE PROTECTION AIR COIL
FREEZE PROTECTION ACCESSORY CONNECTIONS WATER SOLENOID VALVES WSHP
OPEN WIRINGPRE-START-UP . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . .22,23System Checkout . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . 22PSC Blower Speed Selection . . . .
. . . . . . . . . . . . . . 22FIELD SELECTABLE INPUTS . . . . . . .
. . . . . . . . .24,25Complete C Control Jumper Settings. . . . . .
. . . . . 24Complete C Control DIP Switches . . . . . . . . . . . .
. . 24Deluxe D Control Jumper Settings . . . . . . . . . . . . .
24Deluxe D Control DIP Switches . . . . . . . . . . . . . . . .
24Deluxe D Control Accessory Relay
Configurations . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . 25Water Valve (Slow Opening) . . . . . . . . . . . . . . .
. . . . 25Outside Air Damper (OAD) . . . . . . . . . . . . . . . .
. . . . 25START-UP . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . 25-33Operating Limits . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . 25Scroll Compressor
Rotation. . . . . . . . . . . . . . . . . . . . . 26Unit Start-Up
Cooling Mode . . . . . . . . . . . . . . . . . . . . . 26
PageUnit Start-Up Heating Mode . . . . . . . . . . . . . . . . .
. . . . 30Unit Start-Up with WSHP Open Controls . . . . . . . .
30Flow Regulation. . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . 32Flushing . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . 32Antifreeze . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
32Cooling Tower/Boiler Systems . . . . . . . . . . . . . . . . . .
32OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . 33-36Power Up Mode . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . 33Units with Aquazone Complete C
Control . . . . . . . 33Units with Aquazone Deluxe D Control . . .
. . . . . . . 33Units with WSHP Open Multiple Protocol. . . . . . .
. 33COMPLETE C AND DELUXE D BOARD
SYSTEM TEST . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . 36-38Test Mode . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . 36WSHP Open Test Mode. . . . . . .
. . . . . . . . . . . . . . . . . . . 36Retry Mode. . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
37Aquazone Deluxe D Control LED Indicators . . . . . 37SERVICE . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. 38-40Filters . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . 38Water Coil . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
38Condensate Drain Pans . . . . . . . . . . . . . . . . . . . . . .
. . . 38Refrigerant System. . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . 38Compressor . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . 38Fan Motors. . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . 38Condensate Drain
Cleaning . . . . . . . . . . . . . . . . . . . . . 38Air Coil
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . 39Condenser Cleaning . . . . . . . . . . . . . . . . . . . .
. . . . . . . . 39Checking System Charge . . . . . . . . . . . . .
. . . . . . . . . . 39Refrigerant Charging . . . . . . . . . . . .
. . . . . . . . . . . . . . . . 39Air Coil Fan Motor Removal . . .
. . . . . . . . . . . . . . . . . . 40Replacing the WSHP Open
Controllers
Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . 40TROUBLESHOOTING . . . . . . . . . . . . .
. . . . . . . . . . . 40-42Thermistor . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . 40Control Sensors. .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
40WSHP Open Controller . . . . . . . . . . . . . . . . . . . . . .
. . . . 40APPENDIX A WSHP OPEN SCREEN
CONFIGURATION . . . . . . . . . . . . . . . . . . . . . . . . .
. 43-4850PCH,PCV START-UP CHECKLIST . . . . . CL-1, CL-2
SAFETY CONSIDERATIONSInstallation and servicing of
air-conditioning equipment can
be hazardous due to system pressure and electrical compo-nents.
Only trained and qualified service personnel shouldinstall, repair,
or service air-conditioning equipment.
Untrained personnel can perform basic maintenance func-tions of
cleaning coils and filters and replacing filters. All
otheroperations should be performed by trained service
personnel.When working on air-conditioning equipment,
observeprecautions in the literature, tags and labels attached to
the unit,and other safety precautions that may apply.
IMPORTANT: Read the entire instruction manual beforestarting
installation.
AQUAZONE50PCH,PCV006-060
Compact High-Efficiency Water Source Heat Pumpswith PURON
Refrigerant (R-410A)
-
2Improper installation, adjustment, alteration, service,
mainte-nance, or use can cause explosion, fire, electrical shock or
otherconditions which may cause personal injury or property
dam-age. Consult a qualified installer, service agency, or your
distrib-utor or branch for information or assistance. The qualified
in-staller or agency must use factory-authorized kits or
accessorieswhen modifying this product. Refer to the individual
instruc-tions packaged with the kits or accessories when
installing.
Follow all safety codes. Wear safety glasses and workgloves. Use
quenching cloth for brazing operations. Have fireextinguisher
available. Read these instructions thoroughly andfollow all
warnings or cautions attached to the unit. Consultlocal building
codes and the National Electrical Code (NEC)for special
installation requirements.
Understand the signal words DANGER, WARNING,and CAUTION. DANGER
identifies the most serious hazardswhich will result in severe
personal injury or death. WARN-ING signifies hazards that could
result in personal injury ordeath. CAUTION is used to identify
unsafe practices, whichwould result in minor personal injury or
product and propertydamage.
Recognize safety information. This is the safety-alertsymbol (
). When you see this symbol on the unit and ininstructions or
manuals, be alert to the potential for personalinjury.
GENERALThis Installation and Start-Up Instructions literature is
for
Aquazone water source heat pump systems.Water source heat pumps
(WSHPs) are single-package hori-
zontally and vertically mounted units with electronic
controlsdesigned for year-round cooling and heating. AquazoneWSHPs
are available in the following unit configurations: PCH standard
efficiency with horizontal airflow and
right, left or back discharge PCV standard efficiency with
vertical airflow and top
discharge
INSTALLATIONStep 1 Check Jobsite Installation, operation
andmaintenance instructions are provided with each unit. Beforeunit
start-up, read all manuals and become familiar with theunit and its
operation. Thoroughly check out the system beforeoperation.
Complete the inspections and instructions listedbelow to prepare a
unit for installation. See Table 1 for unitphysical data.HORIZONTAL
UNITS (50PCH) Horizontal units aredesigned for indoor installation
only. Be sure to allow adequatespace around the unit for servicing.
See Fig. 1 for overall unitdimensions. Refer to Fig. 2 for an
illustration of a typical hori-zontal installation.VERTICAL UNITS
(50PCV) Vertical units are designedfor indoor installations. While
vertical units are typically
installed in a floor-level closet or a small mechanical room,the
unit access guidelines for these units are very similar tothose
described for horizontal units. See Fig. 3 for overall di-mensions.
Refer to Fig. 4 for an example of a typical
verticalinstallation.
Step 2 Check Unit Upon receipt of shipment atthe jobsite,
carefully check the shipment against the bill oflading. Make sure
all units have been received. Inspect the car-ton or crating of
each unit, and inspect each unit for damage.Ensure the shipping
company makes proper notation of anyshortages or damage on all
copies of the freight bill. Concealeddamage not discovered during
unloading must be reported tothe shipping company within 15 days of
receipt of shipment.NOTE: It is the responsibility of the purchaser
to file allnecessary claims with the shipping company.
1. Verify unit is correct model for entering water tempera-ture
of job.
2. Be sure that the location chosen for unit installation
pro-vides ambient temperatures maintained above freezing.Well water
applications are especially susceptible tofreezing.
3. Be sure the installation location is isolated from
sleepingareas, private offices and other acoustically
sensitivespaces.NOTE: A sound control accessory package may be
usedto help eliminate sound in sensitive spaces.
4. Check local codes to be sure a secondary drain pan is
notrequired under the unit.
5. Be sure unit is mounted at a height sufficient to providean
adequate slope of the condensate lines. If an appropri-ate slope
cannot be achieved, a field-supplied condensatepump may be
required.
6. Provide sufficient space for duct connection.7. Provide
adequate clearance for filter replacement and
drain pan cleaning. Do not allow piping, conduit, etc. toblock
filter access.
8. Provide sufficient access to allow maintenance andservicing
of the fan and fan motor, compressor and coils.Removal of the
entire unit from the closet should not benecessary.
9. Provide an unobstructed path to the unit within the closetor
mechanical room. Space should be sufficient to allowremoval of unit
if necessary.
10. Provide ready access to water valves and fittings,
andscrewdriver access to unit side panels, discharge collar,and all
electrical connections.
11. Where access to side panels is limited, pre-removal of
thecontrol box side mounting screws may be necessary forfuture
servicing.
STORAGE If the equipment is not needed immediately atthe
jobsite, it should be left in its shipping carton and stored in
aclean, dry area of the building or in a warehouse. Units must
bestored in an upright position at all times. If carton stacking
isnecessary, stack units a maximum of 3 high. Do not removeany
equipment from its shipping package until it is needed
forinstallation.PROTECTION Once the units are properly positioned
onthe jobsite, cover them with either a shipping carton, vinyl
film,
WARNINGElectrical shock can cause personal injury or death.
Beforeinstalling or servicing system, always turn off main powerto
system. There may be more than one disconnect switch.Turn off
accessory heater power if applicable.
IMPORTANT: The installation of water source heat pumpunits and
all associated components, parts, and accessorieswhich make up the
installation shall be in accordance withthe regulations of ALL
authorities having jurisdiction andMUST conform to all applicable
codes. It is the responsi-bility of the installing contractor to
determine and complywith ALL applicable codes and regulations.
CAUTIONTo avoid equipment damage, do not use these units as
asource of heating or cooling during the constructionprocess. The
mechanical components and filters used inthese units quickly become
clogged with constructiondirt and debris which may cause system
damage.
-
3or an equivalent protective covering. Cap open ends of
pipesstored on the jobsite. This precaution is especially important
inareas where painting, plastering, or spraying of fireproof
mate-rial, etc. is not yet complete. Foreign material that
accumulateswithin the units can prevent proper start-up and
necessitatecostly clean-up operations.
Before installing any of the system components, be sure
toexamine each pipe, fitting, and valve, and remove any dirt
orforeign material found in or on these components.
INSPECT UNIT To prepare the unit for installation, com-plete the
procedures listed below:
1. Compare the electrical data on the unit nameplate
withordering and shipping information to verify that thecorrect
unit has been shipped.
2. Verify that the unit is the correct model for the
enteringwater temperature of the job.
3. Do not remove the packaging until the unit is ready
forinstallation.
4. Verify that the refrigerant tubing is free of kinks or
dents,and that it does not touch other unit components.
5. Inspect all electrical connections. Be sure connections
areclean and tight at the terminals.
6. Loosen compressor bolts until the compressor rides freelyon
springs. Remove shipping restraints.
7. Remove the four 1/4 in. shipping bolts from compressorsupport
plate (two bolts on each side) to maximize vibra-tion and sound
alternation.
8. Remove any blower support cardboard from inlet of
theblower.
9. Locate and verify any accessory kit located in
compressorsection.
10. Remove any access panel screws that may be difficult
toremove once unit is installed.
Table 1 Physical Data 50PCH,PCV Units
LEGEND *Front is located at control box end.NOTES:
1. All units have grommet compressor mountings, and 1/2-in.
and3/4-in. electrical knockouts.
2. Maximum water working pressure is 500 psig.
CAUTIONDO NOT store or install units in corrosive environments
orin locations subject to temperature or humidity extremes(e.g.,
attics, garages, rooftops, etc.). Corrosive conditionsand high
temperature or humidity can significantly reduceperformance,
reliability, and service life. Always moveunits in an upright
position. Tilting units on their sides maycause equipment
damage.
CAUTIONFailure to remove shipping brackets from
spring-mountedcompressors will cause excessive noise and could
causecomponent failure due to added vibration.
50PCH,PCV UNIT 006 009 012 015 018 024 030 036 042 048
060COMPRESSOR (1 each) Rotary ScrollREFRIGERANT TYPE R-410A
Factory Charge (oz) 17 18.5 23 32 43 43 47 50 70 74 82FAN MOTOR
AND BLOWER
Fan Motor Type/Speeds PSC/3Fan Motor (hp) 1/25 1/10 1/10 1/6 1/6
1/4 3/4 1/2 3/4 3/4 1Blower Wheel Size (Dia x W) (in.) 5 x 5 6 x 5
8 x 7 9 x 7 9 x 8 10 x 10 11 x 10
COAX VOLUME (gal.) 0.123 0.143 0.167 0.286 0.450 0.286 0.323
0.323 0.890 0.738 0.939WATER CONNECTION SIZE FPT (in.) 1/2 3/4
1HORIZONTAL
Air Coil Dimensions (H x W)(in.) 10 x 15 16 x 22 20 x 25 20 x
35Standard Filter - (Qty)1 in. Throwaway (1) 10 x 18 (1) 16 x 25
(1) 18 x 25
(1) 20 x 28 or(2) 20 x 14
(1) 20 x 24,(1) 20 x 14
Weight (lb)Operating 103 105 114 153 158 174 182 203 218 263
278Packaged 113 115 124 158 163 179 187 209 224 270 285
Corner Weight (lb)*Left-Front 37 38 42 53 55 62 67 75 81 98
103Right-Front 24 24 26 36 37 40 41 47 50 60 64Left-Back 23 23 25
34 35 39 40 44 48 58 61Right-Back 19 20 21 30 31 33 34 37 39 47
75
VERTICALAir Coil Dimensions (H x W)(in.) 10 x 15 20 x 17.25 24 x
17.75 24 x 28.25Standard Filter - (Qty)1 in. Throwaway (1) 10 x 18
(1) 20 x 20 (1) 24 x 24
(1) 14 x 24,(1) 18 x 24
Weight (lb)Operating 103 105 114 153 158 189 197 203 218 263
278Packaged 113 115 124 158 163 194 202 209 224 270 285
FPT Female Pipe ThreadPSC Permanent Split Capacitor
-
4F
RIGHT RETURN STRAIGHT DISCHARGEFRONT
L N
O
M
RIGHT RETURN
FRONT
LEFT/STRAIGHTDISCHARGE
CSP
BACKDISCHARGE
CONDENSATE3 / 4" FPT
3.3"[83.8 MM]
0.7"[17.8 MM]
FRONT-VIEW
E D
KJ 2
1
1.1 [27.9 MM]
A
CAP
BSP
RIGHT RETURN RIGHT VIEW -AIR COIL OPENING
AIR COIL
C
TS
B
R
Q
FRONT
L
N O
M
LEFT RETURN STRAIGHT DISCHARGEFRONT
BSP
LEFT RETURN RIGHT RETURN
AIR COIL
CSP
FRONT
LEFT RETURN LEFT VIEW -AIR COIL OPENING
1.75 [44.5 MM]
C
T
R
QS
B
UNIT HANGER DETAIL
U
VFR
ONT
WMODEL U V W
015-030 43.1 [109.5] 22.2 [56.4] 18.0 [45.7]036-042 47.1 [119.6]
22.2 [56.4] 18.0 [45.7]048-060 54.1 [137.4] 26.2 [66.5] 22.0
[55.9]
RIGHT RETURN BACK DISCHARGEA
AIR
CO
IL S
IDE
C
PN
O
M
CSP
BSP
2 FT [610 MM] SERVICEACCESS
FRONT
LEFT RETURN
0.7" [17.8 MM]
3.3"[83.8 MM]
CSP
CONDENSATE3 / 4" FPT
2 FT [610 MM] SERVICEACCESS
AIR
CO
IL S
IDE
M
A
C
LEFT RETURN BACK DISCHARGE
NO
P
BSPBLOWEROUTLET
BLOWEROUTLET
BLOWEROUTLET
BLOWEROUTLET
OPTIONAL 2 FT[610 MM]SERVICEACCESS
OPTIONAL 2 FT[610 MM]SERVICEACCESS
G
H
006-012 34.1 [86.6] 21.1 [53.6] 18.9 [42.9]
NOTE: BLOWER SERVICE PANEL REQUIRES 2 FT SERVICE ACCESS
POWER SUPPLY3 / 4" [19.1 MM] KNOCKOUT1 / 2"
[12.7 MM]KNOCKOUT
LOW VOLTAGE1 / 2" [12.7 MM]KNOCKOUT
3RIGHT/STRAIGHT
DISCHARGE
BACKDISCHARGENOTE: CHOOSE EITHER
BACK OR STRAIGHT DISCHARGE NOTE: CHOOSE EITHERBACK OR STRAIGHT
DISCHARGE
50PCH006-060 UNITS
NOTES:1. While clear access to all removable panels is not
required, installer should
take care to comply with all building codes and allow adequate
clearancefor future field service.
2. Horizontal units shipped with filter bracket only. This
bracket should beremoved for return duct connection.
3. Discharge flange and hanger brackets are factory installed.4.
Condensate is 3/4-in. (19.1 mm) FPT copper.5. Blower service panel
requires 2 ft (610 mm) service access.6. Blower service access is
through back panel on left or right discharge units
or through panel opposite air coil on back discharge units.
50PCHUNITSIZE
OVERALL CABINET WATERCONNECTIONS ELECTRICAL KNOCKOUTSDISCHARGE
CONNECTIONS
DUCT FLANGE( 0.10 in., 2.5 mm)
RETURN CONNECTIONUSING RETURN AIR
OPENING
AWidth
BDepth
CHeight
1 2 3 4Size(IPT)
H1/2-in.
J1/2-in.
K3/4-in. L
MSupplyHeight
NSupplyWidth
O PQ
ReturnDepth
RReturnHeight
S TLoop In Loop OutD E F G LowVoltage
LowVoltage
PowerSupply
006-012
in. 19.1 34.1 11.1 9.6 1.1 1.5 1.1 1/2 8.1 5.1 2.1 0.8 8.9 6.7
8.2 1.3 16.1 9.8 1.1 0.6cm 48.5 86.6 28.2 24.3 2.7 3.8 2.7 1.3 20.6
13.0 5.4 1.9 22.7 17.0 13.3 3.3 41.0 25.0 2.7 1.5
015 in. 20.1 43.1 17.0 15.1 1.4 3.2 1.41/2 12.1 9.1 6.1 2.6 13.3
9.9 4.1 1.3 23.0 15.0 1.1 1.0
cm 51.1 109.5 43.2 38.4 3.4 8.1 3.5 1.3 30.8 23.2 15.6 6.6 33.8
25.1 10.5 3.3 58.4 38.1 2.8 2.5
018 in. 20.1 43.1 17.0 15.1 1.4 4.1 1.41/2 12.1 9.1 6.1 2.6 13.3
9.9 4.1 1.3 23.0 15.0 1.1 1.0
cm 51.1 109.5 43.2 38.4 3.4 10.4 3.5 1.3 30.8 23.2 15.6 6.6 33.8
25.1 10.5 3.3 58.4 38.1 2.8 2.5
024 in. 20.1 43.1 18.3 15.1 1.4 4.4 1.43/4 12.1 9.1 6.1 2.6 13.3
9.9 4.1 1.3 23.0 16.3 1.1 1.0
cm 51.1 109.5 46.5 38.4 3.4 11.3 3.5 1.9 30.8 23.2 15.6 6.6 33.8
25.1 10.5 3.3 58.4 41.4 2.8 2.5
030 in. 20.1 43.1 18.3 15.1 1.4 3.1 1.43/4 12.1 9.1 6.1 2.6 13.3
9.9 4.1 1.3 23.0 16.3 1.1 1.0
cm 51.1 109.5 46.5 38.4 3.4 7.8 3.5 1.9 30.8 23.2 15.6 6.6 33.8
25.1 10.5 3.3 58.4 41.4 2.8 2.5
036 in. 20.1 47.1 21.0 15.1 1.4 5.3 1.43/4 16.1 13.1 10.1 2.5
16.1 11.0 3.0 2.5 25.9 19.0 1.1 1.0
cm 51.1 119.6 53.3 38.4 3.4 13.4 3.5 1.9 41.0 33.3 25.7 6.3 40.9
27.9 7.7 6.4 65.8 48.3 2.8 2.5
042 in. 20.1 47.1 21.0 15.1 1.4 4.4 1.43/4 16.1 13.1 10.1 2.5
16.1 11.0 3.0 2.5 25.9 19.0 1.1 1.0
cm 51.1 119.6 53.3 38.4 3.4 11.3 3.5 1.9 41.0 33.3 25.7 6.3 40.9
27.9 7.7 6.4 65.8 48.3 2.8 2.5
048 in. 24.1 54.1 21.0 15.1 1.4 4.4 1.4 1 16.1 13.1 10.1 3.7
16.1 13.7 4.1 1.3 35.9 19.0 1.1 1.0cm 61.2 137.4 53.3 38.4 3.4 11.1
3.5 2.5 41.0 33.3 25.7 9.5 41.0 34.8 10.3 3.2 91.2 48.3 2.8 2.5
060 in. 24.1 54.1 21.0 15.1 1.4 3.8 1.4 1 16.1 13.1 10.1 1.7
18.1 13.7 4.1 1.3 35.9 19.0 1.1 1.0cm 61.2 137.4 53.3 38.4 3.4 9.7
3.5 2.5 41.0 33.3 25.7 4.4 46.0 34.8 10.3 3.2 91.2 48.3 2.8 2.5
Fig. 1 50PCH Unit Dimensions
a50-8695
LEGENDBSP Blower Service PanelCAP Control Access PanelCSP
Compressor Service PanelFPT Female Pipe Thread
-
5AccessoryElectric Heat(if applicable)
Filter Access
Return Loop
Supply Loop
Water OutWater In
Integral hanger support-pre-attached in factory
Field-supplied transition tominimize pressure loss
3/8" threaded rods(by others)
Return Air(Ductworknot shown)
ThermostatWiring
Power Wiring Balancing Valve (Fieldinstalled and
calibratedaccessory)
Accessorystainless steelbraid hosewith integralJ swivel
3/8" ThreadedRod (by others)
Supply Air
Insulated supply duct withat least one 90 degree elbowto reduce
air noise(field supplied)
FlexibleConnection
Vibration Isolator(white compressor end
and red blower end)
Washer(by others)
Double Hex Nuts(by others)
Unit Power
Unit PowerDisconnect
Unit Hanger
Low Pressure Drop WaterControl Valve (optional)
or(field-installed accessory)
Ball Valve Accessory with optionalintegral P/T plug (typical for
supplyand return piping)
Water OutWater In
Fig. 2 Typical Installation 50PCH Units
UNIT HANGER ISOLATION DETAIL
a50-7842ef
-
6ACCESS PANELS
TOP VIEW-LEFT RETURN
U
RS ISOMETRICVIEW
LEFT RETURN LEFT VIEW- AIR COIL OPENING
T
CPOWER SUPPLY3/4" [19.1 MM] HV
KNOCKOUTLOW VOLTAGE
1/2" [12.7 MM] LVKNOCKOUT
LOW VOLTAGE1/2" [12.7 MM] LV
KNOCKOUT
CONDENSATE3/4" FPT
FRONT-VIEW
K
1.00 [25.4 MM]
F
J HD
L
AIR COIL
FIELD INSTALLEDDISCHARGE FLANGE
FRONTBACK
U
R S
T
C
BACKFRONT
RIGHT RETURN RIGHT VIEW- AIR COIL OPENING
BSP
CAP
STANDARD FILTER BRACKET
ASP
AIR COILFR
ONT OPTIONAL
2 FT [610 MM]SERVICEACCESSLEFT RTN(RIGHT RTNOPPOSITE
SIDE)
NB
P
AO
M
2 FT [610 MM]SERVICE
3
2
1
E
I
G
TOP VIEW-RIGHT RETURN
FRONT
P N
O
Q
TOP VIEW-FRONT RETURN
P N
O
Q
CSP
CAP
CSPCSP
CSP
AIR COIL
AIR COIL SIDE
BSP
AIR COIL AND FRONT SIDE
AIR COIL SIDE
50PCV006-060 UNITS
NOTES:1. Shaded areas are recommended service areas. Installer
should take care to comply with
all building codes and allow adequate clearance for future field
service.2. Front and side access is preferred for service access.
However, all components may be
serviced from the front access panel if side access is not
available except on 50PCV009-030 with front return.
3. Discharge flange is field installed.4. Condensate is 3/4 in.
(19.1 mm) FPT.5. Units shipped with filter rails. These rails
should be removed for return duct connection.
See WSHP Accessory Price Page for accessory air filter frame
with duct collar.
50PCVUNITSIZE
OVERALL CABINET WATER CONNECTIONS ELECTRICAL KNOCKOUTSDISCHARGE
CONNECTIONDUCT FLANGE INSTALLED
(0.10 in., 2.5 mm)RETURN CONNECTION
USING RETURN AIR OPENING
AWidth
BDepth
CHeight
1 2 3Size(IPT)
J1/2-in.
(1.3 cm)K
1/2-in.(1.3 cm)
L3/4-in.
(1.3 cm) M NO
SupplyWidth
PSupplyDepth
Q RS
ReturnDepth
TReturnHeight
UD E F G H I LowVoltage
LowVoltage
PowerSupplyLoop In Loop Out
006-012
in. 19.1 19.1 22.0 1.4 1.6 9.5 1.6 6.1 1.6 1/2 2.9 5.9 8.9 8.9
5.1 9.0 9.0 5.5 2.1 16.2 9.9 0.7cm 48.5 48.5 55.9 3.6 4.1 24.1 4.3
15.6 4.1 1.3 7.3 14.9 22.5 22.7 12.9 22.9 22.9 14.0 5.3 41.1 25.1
1.9
015 in. 21.5 21.5 39.0 1.9 1.4 13.8 1.4 8.1 1.41/2 4.1 7.1 10.1
6.4 3.8 14.0 14.0 5.3 2.3 18.3 20.9 0.7
cm 54.6 54.6 99.1 4.8 3.6 35.1 3.6 20.6 3.6 1.3 10.5 18.1 25.7
16.1 9.5 35.6 35.6 13.6 5.8 46.5 53.1 1.9
018 in. 21.5 21.5 39.0 1.9 1.4 12.9 1.4 8.1 1.41/2 4.1 7.1 10.1
6.4 3.8 14.0 14.0 5.3 2.3 18.3 20.9 0.7
cm 54.6 54.6 99.1 4.8 3.6 32.8 3.6 20.6 3.6 1.3 10.5 18.1 25.7
16.1 9.5 35.6 35.6 13.6 5.8 46.5 53.1 1.9
024 in. 21.5 21.5 40.0 1.9 1.4 13.8 1.4 8.1 1.43/4 4.1 7.1 10.1
6.4 3.8 14.0 14.0 5.3 2.3 18.3 20.9 0.7
cm 54.6 54.6 101.6 4.8 3.6 35.1 3.6 20.6 3.6 1.9 10.5 18.1 25.7
16.1 9.5 35.6 35.6 13.6 5.8 46.5 53.1 1.9
030 in. 21.5 21.5 40.0 1.9 1.4 15.2 1.4 8.1 1.43/4 4.1 7.1 10.1
6.4 3.8 14.0 14.0 5.3 2.3 18.3 20.9 0.7
cm 54.6 54.6 101.6 4.8 3.6 38.6 3.6 20.6 3.6 1.9 10.5 18.1 25.7
16.1 9.5 35.6 35.6 13.6 5.8 46.5 53.1 1.9
036 in. 21.5 26.0 45.0 1.9 1.4 15.7 1.4 8.1 1.43/4 4.1 7.1 10.1
6.4 3.8 14.0 14.0 5.1 2.3 22.8 23.9 0.7
cm 54.6 66.0 114.3 4.8 3.6 39.9 3.6 20.6 3.6 1.9 10.5 18.1 25.7
16.1 9.5 35.6 35.6 13.1 5.8 57.9 60.7 1.9
042 in. 21.5 26.0 45.0 1.9 1.4 16.6 1.4 8.1 1.43/4 4.1 7.1 10.1
6.4 3.8 14.0 14.0 5.1 2.3 22.8 23.9 0.7
cm 54.6 66.0 114.3 4.8 3.6 42.0 3.6 20.6 3.6 1.9 10.5 18.1 25.7
16.1 9.5 35.6 35.6 13.1 5.8 57.9 60.7 1.9
048 in. 24.0 32.5 46.0 1.9 1.4 16.6 1.4 8.1 1.4 1 4.1 7.1 10.1
6.9 7.3 16.0 18.0 5.1 2.3 29.3 22.5 0.7cm 61.0 82.6 116.8 4.8 3.6
42.2 3.6 20.6 3.6 2.5 10.5 18.1 25.7 17.4 18.4 40.6 45.7 13.1 5.8
74.4 57.0 1.9
060 in. 24.0 32.5 46.0 1.9 1.4 16.7 1.4 8.1 1.4 1 4.1 7.1 10.1
6.9 7.3 16.0 18.0 5.1 2.3 29.3 22.5 0.7cm 61.0 82.6 116.8 4.8 3.6
42.4 3.6 20.6 3.6 2.5 10.5 18.1 25.7 17.4 18.4 40.6 45.7 13.1 5.8
74.4 57.0 1.9
Fig. 3 50PCV Unit Dimensions
LEGENDASP Alternate Service PanelBSP Blower Service PanelCAP
Control Access PanelCSP Compressor Service PanelFPT Female Pipe
ThreadHV High VoltageLV Low Voltage
a50-8696
-
7Step 3 Locate Unit The following guidelinesshould be considered
when choosing a location for a WSHP: Units are for indoor use only.
Locate in areas where ambient temperatures are between
40 F and 100 F and relative humidity is no greater than75%.
Provide sufficient space for water, electrical and
ductconnections.
Locate unit in an area that allows easy access andremoval of
filter and access panels.
Allow enough space for service personnel to
performmaintenance.
Return air must be able to freely enter the space if unitneeds
to be installed in a confined area such as a closet.
Install the unit on a piece of rubber, neoprene or othermounting
pad material for sound isolation. The padshould be at least 3/8 in.
[10 mm] to 1/2 in. [13 mm] inthickness. Extend the pad beyond all
four edges of theunit.
Provide adequate clearance for filter replacement anddrain pan
cleaning. Do not block filter access with pip-ing, conduit or other
materials. Refer to Fig. 1 and 3 fordimensional data.
Provide access for fan and fan motor maintenance andfor
servicing the compressor and coils without removingthe unit.
Provide an unobstructed path to the unit within the closetor
mechanical room. Space should be sufficient to allowremoval of the
unit, if necessary.
In limited side access installations, pre-removal of thecontrol
box side mounting screws will allow control boxremoval for future
servicing.
Provide access to water valves and fittings and screw-driver
access to the unit side panels, discharge collar andall electrical
connections.NOTE: Correct placement of the horizontal unit can play
animportant part in minimizing sound problems. Since duct-work is
normally applied to these units, the unit can beplaced so that the
principal sound emission is outside the oc-cupied space in
sound-critical applications. A fire dampermay be required by the
local code if a fire wall is penetrated.
FIELD CONVERSION OF DISCHARGE AIR The dis-charge air of the
50PCH horizontal units can be converted
between side and back discharge in the field. The
conversionprocess is the same for right and left return
configurations. SeeFig. 5 and 6.NOTE: It is not possible to convert
return air between left orright return models in the field due to
refrigerant pipingchanges.Preparation The unit should be on the
ground in a well litarea for conversion. Hung units should be taken
down toground level before converting.
ReturnAir
Power
ThermostatWiring
CompressorAccess Panel
Balancing Valve (field installed and calibrated
accessory)Field-suppliedstainless steel
braid hosewith integral J swivel
Low Pressure Drop Water
Control Valve (optional) (field-installed accessory)
Ball Valve with optional integral P/T plug (typical for supply
and return piping)
WaterOut
WaterIn
BuildingLoop
Supply Air
FlexibleConnection
NOTE: Ball valve with integral pressure temperature plug
recommended.
Fig. 4 Typical Vertical Installation of 50PCV Unit
a50-6803ef
Return Air
Remove Screws
Return Air
Rotate
Move to Side
Side Discharge
Return Air
Discharge Air
Drain
Back Discharge
Replace Screws
WaterConnection End
WaterConnection End
WaterConnection End
Fig. 5 Conversion Left Return,Side Discharge to Back
Discharge
WaterConnection End
SupplyDuct
Return Air
WaterConnection End
Drain
Return Air
Discharge Air
Side Discharge
Back Discharge
Fig. 6 Conversion Right Return,Side Discharge to Back
Discharge
a50-6257ef
-
8Side to Back Discharge Conversion1. Remove screws to free the
top and discharge panels. See
Fig. 5.2. Remove the access panel and set aside.3. Lift the
discharge panel from side of unit and rotate it to
back using care not to damage blower wiring.4. Check blower wire
routing and connections for undue
tension or contact with sheet metal edges. Re-route
ifnecessary.
5. Check refrigerant tubing for contact with other compo-nents.
Adjust if necessary.
6. Reinstall top panel using screws set aside in Step 1.NOTE:
Location for some screws at bottom of discharge panelmay have to be
changed.
7. Manually spin fan wheel to check for obstructions.Adjust for
any obstruction found.
8. Replace access panel.Back to Side Discharge Conversion Follow
instructionsabove for Side to Back Discharge Conversion, noting
thepanels would be reversed.
Step 4 Mount the UnitHORIZONTAL UNITS (50PCH) Horizontal units
should bemounted using the factory-installed hangers. Proper
attachmentof hanging rods to building structure is critical for
safety. SeeFig. 2 and 7. Rod attachments must be able to support
theweight of the unit. See Table 1 for unit operating weights.
VERTICAL UNITS (50PCV) Vertical units are available inleft or
right return air configurations. See Fig. 3. Mount the uniton a
vibration absorption pad slightly larger than the entire baseto
minimize vibration transmission. It is not necessary to mountthe
unit on the floor. See Fig. 8.
NOTE: Some codes require the use of a secondary drain panunder
vertical units. Check local codes for more information.
Step 5 Check Duct System Size the duct sys-tem to handle the
design airflow quietly.NOTE: Depending on the unit, the fan wheel
may have a ship-ping support installed at the factory. This must be
removedbefore operating unit. SOUND ATTENUATION To eliminate the
transfer ofvibration to the duct system, a flexible connector is
recom-mended for both discharge and return air duct connections
onmetal duct systems. The supply and return plenums should in-clude
internal duct liner of fiberglass or be made of duct
boardconstruction to maximize sound attenuation of the
blower.Installing the WSHP unit to uninsulated ductwork in an
uncon-ditioned space is not recommended since it will sweat
andadversely affect the units performance.
To reduce air noise, at least one 90-degree elbow could
beincluded in the supply and return air ducts, provided
systemperformance is not adversely impacted. The blower speed
canalso be changed in the field to reduce air noise or excessive
air-flow, provided system performance is not adversely
impacted.EXISTING DUCT SYSTEM If the unit is connected toexisting
ductwork, consider the following: Verify that the existing ducts
have the proper capacity to
handle the unit airflow. If the ductwork is too small,install
larger ductwork.
Check existing ductwork for leaks and repair asnecessary.
NOTE: Local codes may require ventilation air to enter thespace
for proper indoor air quality. Hard-duct ventilation maybe required
for the ventilating air supply. If hard ducted venti-lation is not
required, be sure that a proper air path is providedfor ventilation
air to unit to meet ventilation requirement of thespace.
Step 6 Install Condensate DrainHORIZONTAL UNITS (50PCH) Slope
the unit towardthe drain at a 1/4 in. drop at drain end. See Fig.
9. If it is not pos-sible to meet the required pitch, install a
condensate pump atthe unit to pump condensate to building
drain.
Horizontal units are not internally trapped, therefore an
ex-ternal trap is necessary. Install each unit with its own
individualtrap and means to flush or blow out the condensate drain
line.Do not install units with a common trap or vent. For
typicalcondensate connections see Fig. 10.NOTE: Never use a pipe
size smaller than the connection.VERTICAL UNITS (50PCV) Each unit
uses a condensatehose inside all cabinets as a trapping loop,
therefore an externaltrap is not necessary and should not be used.
See Fig. 11.
Fig. 7 Horizontal Hanger Bracket(Factory Installed)
COMPRESSORSECTION
AIR HANDLERSECTION
a50-8489
VibrationAbsorptionPad
Fig. 8 50PCV Unit Mounted withVibration Absorption Pad
a50-6259ef
Fig. 9 Horizontal Unit Pitch
1/4 Pitch forDrainage
Drain Connection
Pitch TowardDrain
a50-6260ef
-
9Each unit must be installed with its own individual vent
andmeans to flush or blow out the condensate drain line. Do not
in-stall units with a common trap or vent.VENTING Install a vent in
the condensate line of anyapplication that may allow dirt or air to
collect in the line. Con-sider the following: Always install a vent
where an application requires a
long horizontal run. Always install a vent where large units are
working
against higher external static pressure and to allowproper
drainage for multiple units connected to the samecondensate
main.
Be sure to support the line where anticipated sagging fromthe
condensate or when double trapping may occur.
If condensate pump is present on unit, be sure drain
con-nections have a check valve to prevent back flow of con-densate
into other units.
Step 7 Pipe Connections Depending on theapplication, there are 3
types of WSHP piping systems tochoose from: water loop,
ground-water and ground loop. Referto Piping Section of Carrier
System Design Manual for addi-tional information.
All WSHP units use low temperature soldered female pipethread
fittings for water connections to prevent annealing andout-of-round
leak problems which are typically associated withhigh temperature
brazed connections. Refer to Table 1 for con-nection sizes. When
making piping connections, consider thefollowing: Use a backup
wrench when making screw connections to
unit to prevent internal damage to piping.
Insulation may be required on piping to avoid condensa-tion in
the case where fluid in loop piping operates attemperatures below
dew point of adjacent air.
Piping systems that contain steel pipes or fittings maybe
subject to galvanic corrosion. Dielectric fittings maybe used to
isolate the steel parts of the system to avoidgalvanic
corrosion.
WATER LOOP APPLICATIONS Water loop applicationsusually include a
number of units plumbed to a common pip-ing system. Maintenance to
any of these units can introduce airinto the piping system.
Therefore, air elimination equipmentcomprises a major portion of
the mechanical room plumbing.
The flow rate is usually set between 2.25 and 3 gpm per tonof
cooling capacity. For proper maintenance and
servicing,pressure-temperature (P/T) ports are necessary for
temperatureand flow verification.
In addition to complying with any applicable codes, consid-er
the following for system piping: Piping systems using water
temperatures below 50 F
require 1/2-in. closed cell insulation on all piping surfacesto
eliminate condensation.
Avoid all plastic to metal threaded fittings due to thepotential
to leak. Use a flange fitted substitute.
Teflon tape thread sealant is recommended to minimizeinternal
fouling of the heat exchanger.
Use backup wrench. Do not overtighten connections. Route piping
to avoid service access areas to unit. Flush the piping system
prior to operation to remove dirt
and foreign materials from the system.GROUND-LOOP APPLICATIONS
Temperatures be-tween 25 and 110 F and a cooling capacity of 2.25
to 3 gpm offlow per ton is recommended. In addition to complying
withany applicable codes, consider the following for system piping:
Limit piping materials to only polyethylene fusion in the
buried sections of the loop. Do not use galvanized or steel
fittings at any time due to
corrosion. Avoid all plastic to metal threaded fittings due to
the poten-
tial to leak. Use a flange fitted substitute. Do not overtighten
connections. Route piping to avoid service access areas to unit.
Use pressure-temperature (P/T) plugs to measure flow of
pressure drop.INSTALLATION OF SUPPLY AND RETURN HOSEKIT Follow
these piping guidelines.
1. Install a drain valve at the base of each supply and
returnriser to facilitate system flushing.
2. Install shutoff/balancing valves and unions at each unit
topermit unit removal for servicing.
3. Place strainers at the inlet of each system
circulatingpump.
4. Select the proper hose length to allow slack between
con-nection points. Hoses may vary in length by +2% to 4%under
pressure.
5. Refer to Table 2. Do not exceed the minimum bend radiusfor
the hose selected. Exceeding the minimum bend radi-us may cause the
hose to collapse, which reduces waterflow rate. Install an angle
adapter to avoid sharp bendsin the hose when the radius falls below
the requiredminimum.NOTE: Piping must comply with all applicable
codes.
Table 2 Metal Hose Minimum Bend Radii
NOTE: Trap should be deep enough to offset maximum unit
staticdifference. A 4-in. trap is recommended.
Fig. 10 Trap Condensate Drain
a50-6261tf
AlternateCondensateLocation
Vent
1/4 per footslope to drain
3/4 Copper FPT/PVC
WaterConnections
1/2
1/2
3/4 PVC
NOTE: Unit does not need to be sloped toward drain.
Fig. 11 Vertical Condensate Connection
a50-6262ef
HOSE DIAMETER (in.) MINIMUM BEND RADII (in.)1/2 21/23/4 41
51/2
-
10
Insulation is not required on loop water piping except wherethe
piping runs through unheated areas or outside the buildingor when
the loop water temperature is below the minimum ex-pected dew point
of the pipe ambient. Insulation is required ifloop water
temperature drops below the dew point.
Pipe joint compound is not necessary when Teflon* thread-ed tape
is pre-applied to hose assemblies or when flared-endconnections are
used. If pipe joint compound is preferred, usecompound only in
small amounts on the male pipe threads ofthe fitting adapters.
Prevent sealant from reaching the flaredsurfaces of the joint.NOTE:
When anti-freeze is used in the loop, assure that it iscompatible
with Teflon tape or pipe joint compound employed.
Maximum allowable torque for brass fittings is 30 ft-lb. If
atorque wrench is not available, tighten finger-tight plus
onequarter turn. Tighten steel fittings as necessary.
Optional pressure-rated hose assemblies designed specifi-cally
for use with Carrier units are available. Similar hoses canbe
obtained from alternate suppliers. Supply and return hosesare
fitted with swivel-joint fittings at one end to prevent kink-ing
during installation.
Refer to Fig. 12 for an illustration of a supply/return hosekit.
Male adapters secure hose assemblies to the unit and risers.Install
hose assemblies properly and check them regularly toavoid system
failure and reduced service life.
Step 8 Wire Field Power Supply
All field installed wiring, including the electrical ground,MUST
comply with the National Electrical Code (NEC) aswell as applicable
local codes. In addition, all field wiring mustconform to the Class
II temperature limitations described in theNEC.
Refer to unit wiring diagrams Fig. 13-20 for a schematic ofthe
field connections, which must be made by the installing
(orelectrical) contractor. Refer to Table 3 for fuse sizes.
Consult the unit wiring diagram located on the inside of
thecompressor access panel to ensure proper electrical hookup.The
installing (or electrical) contractor must make the
fieldconnections when using field-supplied disconnect.
Operating voltage must be the same voltage and phase asshown in
Table 3.
Make all final electrical connections with a length of flexi-ble
conduit to minimize vibration and sound transmission tothe
building.POWER CONNECTION Make line voltage connectionby connecting
the incoming line voltage wires to the L sideof the CC terminal as
shown in Fig. 21. See Table 3 for cor-rect wire and maximum
overcurrent protection sizing.SUPPLY VOLTAGE Operating voltage to
unit must bewithin voltage range indicated on unit nameplate.
On 3-phase units, voltages under load between phases mustbe
balanced within 2%. Use the following formula to deter-mine the
percentage voltage imbalance:% Voltage Imbalance
Example: Supply voltage is 460-3-60.AB = 452 voltsBC = 464
voltsAC = 455 volts
Determine maximum deviation from average voltage:(AB) 457 452 =
5 v(BC) 464 457 = 7 v(AC) 457 455 = 2 vMaximum deviation is 7
v.Determine percent voltage imbalance.
This amount of phase imbalance is satisfactory as it isbelow the
maximum allowable 2%.
Operation on improper line voltage or excessive phaseimbalance
constitutes abuse and may cause damage to electri-cal
components.NOTE: If more than 2% voltage imbalance is present,
contactyour local electric utility.208-VOLT OPERATION All 208-230
volt units are factorywired for 208 volts. The transformers may be
switched to230-volt operation by switching the red (208 volt) wire
withthe orange (230 volt) wire at the L1 terminal.460-VOLT
OPERATION Units using 460-v and internalsecondary pump will require
a neutral wire from the supplyside in order to feed accessory with
265-v.
IMPORTANT: Do not bend or kink supply lines or hoses.
CAUTIONBackup wrench is required when tightening water
connec-tions to prevent water line damage. Failure to use a
backupwrench could result in equipment damage.
WARNINGTo avoid possible injury or death due to electrical
shock,open the power supply disconnect switch and secure it inan
open position during installation.
CAUTIONUse only copper conductors for field-installed
electricalwiring. Unit terminals are not designed to accept
othertypes of conductors. Failure to follow this safety
precautioncould lead to equipment damage.
Rib Crimped
Length(2 ft Length Standard)
SwivelBrassFitting
BrassFitting
MPT
Fig. 12 Supply/Return Hose Kit
A50-7734
= 100 x max voltage deviation from average voltageaverage
voltage
Average Voltage = 452 + 464 + 4553
= 13713= 457
% Voltage Imbalance = 100 x 7457= 1.53%
*Registered trademark of E. I. du Pont de Nemours and
Company.
-
11
NOT
ES:
1.Co
mpr
ess
or an
d bl
owe
r m
oto
r th
erm
ally
pro
tect
ed
inte
rna
lly.
2.Al
l wiri
ng to
th
e u
nit
mu
st co
mpl
y w
ith N
EC a
nd
loca
l cod
es.
3.Tr
ansf
orm
er
for
208/
230
v w
ill be
co
nn
ecte
d fo
r 20
8 v
ope
ratio
n.
For
230
v op
era
tion
, sw
itch
RED
wire
to
O
RG
wire
. In
sula
te o
pen
end
of
RED
lead
. Tr
ans
form
er
is e
nerg
y lim
iting
or
m
ay h
ave
ci
rcui
t bre
ake
r.4.
FP1
ther
mis
tor
prov
ides
fre
eze
pr
ote
ctio
n fo
r w
ater
. W
hen
usi
ng a
nti-
free
ze s
olu
tion
s, cu
t JW
3 jum
per.
5.Ty
pica
l hea
t pu
mp
ther
mo
sta
t wiri
ng s
how
n. R
efe
r to
th
erm
osta
t ins
talla
-
tion
inst
ruct
ions
for
wiri
ng
to th
e un
it. W
ire Y
fro
m t
herm
ost
at to
Y
Com
ple
te C
when
a
mot
orize
d va
lve is
not
use
d. O
te
rmin
al is
not
u
sed
in c
oolin
g on
ly ap
plic
atio
ns. Th
erm
ost
at w
iring
mu
st b
e Cl
ass
1 an
d vo
lt-a
ge r
atin
g eq
ual t
o or
gr
ea
ter
than
uni
t sup
ply
volta
ge.
6.24
-v a
larm
sig
nal s
how
n.
For
dry
ala
rm c
on
tact
, cu
t JW
1 jum
per a
nd
for
an
ti-fre
eze
so
lutio
ns, cu
t JW
3 jum
per.
7.Tr
ans
form
er
seco
ndar
y gr
oun
d via
gre
en
wire
with
ye
llow
stri
pe fro
m C
term
ina
l to
co
ntro
l box
.8.
Hot
w
ate
r ge
ne
rato
r pu
mp
on
ly in
m
ode
ls w
ith h
ot w
ater
ge
ne
ratio
n a
ndin
tern
al p
ump
optio
n.
9.Fo
r au
xilia
ry st
agi
ng op
tion
s, co
nsu
lt e
lect
ric h
eat i
nst
alla
tion
ma
nua
l.10
.Fa
n m
oto
rs fa
cto
ry w
ired
for
me
dium
spe
ed.
Fo
r hi
gh o
r lo
w s
pee
d,re
mov
e BL
U w
ire fr
om
fan
mot
or sp
eed
trap
M
an
d co
nn
ect
to
H
for
high
sp
eed
or L
fo
r lo
w s
pee
d.11
.Aq
ua
stat
is w
ith u
nit
an
d m
ust
be
wire
d in
ser
ies
with
the
hot l
eg to
th
epu
mp.
Aq
ua
stat
is ra
ted
for
volta
ge u
p to
27
7 v.
a50-
8490
Fig.
13
50
PCH,
PCV
Units
with
Co
mpl
ete
C Co
ntr
olle
r, S
ingl
e-Ph
ase
Co
mp
lete
C
*O
ptio
nal.
AL
Al
arm
Rel
ay C
onta
cts
BM
Bl
owe
r M
oto
rB
MC
Bl
owe
r M
oto
r Ca
paci
tor
BR
Bl
owe
r R
elay
CAP
Co
mpr
esso
r Ca
paci
tor
CB
Circ
uit B
rea
ker
CC
Com
pres
sor
Cont
act
or
CO
Sens
or, Co
nden
sate
O
verfl
owFP
1
Sens
or, Lo
w T
empe
ratu
re P
rote
ctio
n W
ater
Coi
lFP
2
Sens
or, Lo
w T
empe
ratu
re P
rote
ctio
n A
ir Co
ilH
P
Hig
h-Pr
ess
ure
Swi
tch
HPW
S
Hig
h-Pr
ess
ure
Wa
ter S
witc
hH
WTS
H
igh
Leav
ing
Wa
ter
Tem
pera
ture
Swi
tch
JW1
Ju
mpe
r, Al
arm
LEG
END
LOC
Lo
ss o
f Cha
rge
Pre
ssu
re S
witc
hM
V
Mot
orize
d Va
lveM
VES
M
otor
ized
Valve
En
d Sw
itch
NEC
N
atio
na
l Ele
ctric
al Co
deP1
Fi
eld
Wiri
ng
Term
inal
Bl
ock
PSC
Pe
rma
nen
t Spl
it Ca
pacit
or
RV
Rev
ers
ing
Valve
Coi
lTR
AN
S
Tra
nsf
orm
er
TXV
Th
erm
ost
atic
Exp
ansi
on V
alve
Fiel
d Li
ne Vo
ltage
W
irin
gFi
eld
Low
Vo
ltage
Wiri
ng
Prin
ted
Circ
uit
Tra
ce
Opt
ion
al W
irin
g
Rel
ay/C
onta
ctor
Coi
l
Cond
ensa
te Pa
n
Sole
no
id C
oil
Tem
pera
ture
Swi
tch
Ther
mis
tor
Gro
un
d
Wire
Nut
-
12
NOT
ES:
1.Co
mpr
ess
or th
erm
ally
pro
tect
ed
inte
rnal
ly.2.
All w
iring
to th
e u
nit
mu
st co
mpl
y wi
th N
EC a
nd
loca
l cod
es.
3.Tr
ans
form
er
is w
ired
to 20
8-v
RED
lead
fo
r 20
8-3-
60 u
nits
. Fo
r 23
0-3-
60,
switc
h R
ED a
nd
ORG
lead
s at
L1
and
insu
late
R
ED le
ad. T
ran
sfo
rme
r is
ene
rgy
limitin
g or
may
hav
e ci
rcui
t bre
ake
r.4.
FP1
the
rmis
tor
prov
ides
fre
eze
pr
ote
ctio
n fo
r w
ate
r. W
hen
usi
ng a
nti-
free
ze s
olut
ion
s, cu
t JW
3 jum
per.
5.R
efer
to m
icro
proc
esso
r co
ntro
l, LO
N, o
r th
erm
ost
at i
nsta
llatio
n in
stru
c-tio
ns
for
wiri
ng
to th
e un
it. W
ire Y
fro
m th
erm
ost
at to
Y1
D
elux
e D
whe
n m
otor
ized
valve
is n
ot u
sed.
Th
erm
ost
at w
iring
mu
st b
e Cl
ass
1a
nd
volta
ge ra
ting
equ
al t
o o
r gr
ea
ter
tha
n u
nit
supp
ly vo
ltage
. H
eat/c
oo
lth
erm
ost
ats
no
t com
patib
le w
ith m
oto
rize
d w
ate
r va
lve.
6.24
-v a
larm
sig
nal s
how
n. Fo
r dr
y al
arm
co
nta
ct, c
ut J
W4
jumpe
r and
dry
con
tact
will
be a
vaila
ble
be
twe
en
AL1
an
d AL
2.7.
Tra
nsf
orm
er
seco
nda
ry g
rou
nd v
ia g
ree
n w
ire w
ith y
ello
w s
tripe
from
C
term
inal
to
co
ntro
l box
.8.
Blow
er
mot
or is
fact
ory
wire
d fo
r m
edi
um
an
d hi
gh sp
eeds
. Fo
r a
ny o
ther
com
bina
tion
of s
peed
s, a
ttach
bl
ack
wire
to th
e hi
gher
of t
he tw
o d
esi
red
spe
ed
taps
and
the
blu
e w
ire to
th
e lo
we
r o
f the
two
des
ired
spee
d ta
ps.
a50-
8491
Fig.
14
50
PCH,
PCV
Units
with
D
elu
xe
D
Con
trolle
r, T
hree
-Pha
se (2
08/2
30 V
)
Del
uxe
D
LEG
END
Rel
ay/C
onta
ctor
Coi
l
Cond
ensa
te Pa
n
Sole
no
id C
oil
The
rmis
tor
Gro
und
Wire
Nut
*O
ptio
na
l.
AL
Al
arm
Rel
ay C
onta
cts
BM
Bl
owe
r M
oto
rB
MC
Bl
owe
r M
oto
r Ca
pacit
or
CB
Circ
uit
Brea
ker
CC
Com
pre
sso
r Co
nta
ctor
CO
Sen
sor,
Co
nde
nsat
e O
verfl
owFP
1
Sen
sor,
Lo
w T
em
pera
ture
Pr
ote
ctio
n W
ate
r Co
ilFP
2
Sen
sor,
Lo
w T
em
pera
ture
Pr
ote
ctio
n Ai
r Co
ilH
P
Hig
h-Pr
ess
ure
Swi
tch
HPW
S
Hig
h-Pr
ess
ure
Wat
er Sw
itch
HW
TS
Hig
h Le
avin
g W
ate
r Te
mpe
ratu
re Sw
itch
JW1
Ju
mpe
r, Al
arm
LOC
Lo
ss o
f Cha
rge
Pres
sure
Sw
itch
MV
M
oto
rize
d Va
lveM
VES
M
oto
rize
d Va
lve E
nd
Switc
hN
EC
Nat
ion
al E
lect
rical
Cod
eP1
Fi
eld
Wiri
ng
Term
ina
l Blo
ckRV
S
Rev
ers
ing
Valve
Sol
en
oid
TRA
NS
Tr
an
sfor
me
rTX
V
Ther
mos
tatic
Exp
an
sion
Va
lveFi
eld
Line
Vo
ltage
Wiri
ng
Fiel
d Lo
w V
olta
ge W
irin
gPr
inte
d Ci
rcui
t Tra
ce
Opt
iona
l Wiri
ng
-
13
NOT
ES:
1.Co
mpr
esso
r th
erm
ally
pro
tect
ed in
tern
ally
.
2.Al
l wiri
ng
to th
e un
it m
ust
com
ply
with
N
EC a
nd lo
cal c
odes
.
3.Tr
an
sfo
rme
r is
wire
d to
460
-v B
LK/R
ED le
ad fo
r 46
0-3-
60 u
nits
or 5
75-v
GRY
lea
d fo
r 57
5-3-
60 u
nits
. Tr
ans
form
er
is e
ne
rgy
limiti
ng
or m
ay h
ave
circ
uit
bre
ake
r.4.
FP1
ther
mis
tor
prov
ides
lo
w t
empe
ratu
re p
rote
ctio
n fo
r w
ate
r. W
hen
usi
ng a
ntifr
ee
ze s
olu
tion
s, cu
t JW
3 jum
per.
5.R
efe
r to
m
icro
pro
cess
or c
ont
rol,
LON
, or t
herm
ost
at in
sta
llatio
n in
stru
c-tio
ns
for
wiri
ng to
the
unit.
W
ire
Y fro
m th
erm
ost
at to
Y1
D
elux
e D
whe
n m
otor
ized
valve
is n
ot u
sed.
Th
erm
ost
at w
irin
g m
ust
be
Cl
ass
1a
nd
volta
ge ra
ting
equ
al t
o or
gre
ate
r th
an u
nit
supp
ly vo
ltage
. H
eat/c
ool
the
rmo
sta
ts n
ot c
ompa
tible
with
mot
oriz
ed
wa
ter
valve
.
6.24
-v a
larm
sig
na
l sho
wn
. Fo
r dr
y al
arm
co
nta
ct, c
ut J
W4
jumpe
r an
d dr
yco
nta
ct w
ill be
ava
ilabl
e b
etw
ee
n A
L1 a
nd
AL2.
7.Tr
an
sform
er
seco
nda
ry g
roun
d via
gr
ee
n w
ire w
ith y
ello
w s
tripe
fro
m
Cte
rmin
al to
co
ntro
l box
.8.
Blow
er m
oto
r is
fact
ory
wire
d fo
r m
ediu
m a
nd h
igh
spee
ds. Fo
r a
nyo
ther
com
bina
tion
of s
peed
s, at
tach
bla
ck w
ire to
the
high
er
of th
e tw
ode
sired
spe
ed ta
ps a
t the
mot
or. At
tach
the
blu
e w
ire to
the
low
er
of t
hetw
o de
sire
d sp
eed
taps
.
9.Bl
ower
mo
tor
is fa
cto
ry w
ired
for
high
and
low
spe
eds.
N
o ot
her
com
bi-
na
tion
of s
pee
ds is
ava
ilabl
e.10
.Th
e 46
0-v
un
its usi
ng
an in
tern
al s
eco
ndar
y pu
mp
will
requ
ire a
ne
utra
lw
ire fr
om
the
supp
ly si
de in
or
der t
o fe
ed
the
acce
sso
ry w
ith 2
65-v.
a50-
8492
Fig.
15
5
0PCH
,PCV
Uni
ts w
ith D
elux
e D
Con
trolle
r, Th
ree-
Phas
e (46
0 V)
Del
uxe
D
LEG
END
Rel
ay/C
onta
ctor
Coi
l
Cond
en
sate
Pa
n
Sole
noid
Coi
l
Ther
mis
tor
Gro
un
d
Wire
N
ut*O
ptio
na
l.
AL
Al
arm
Rel
ay C
onta
cts
BM
Bl
owe
r M
oto
rB
MC
Bl
owe
r M
oto
r Ca
pacit
or
BR
Bl
owe
r R
elay
CB
Circ
uit B
rea
ker
CC
Com
pre
sso
r Co
nta
ctor
CO
Sen
sor,
Co
nden
sate
Ove
rflow
FP1
Se
nso
r, Lo
w T
em
pera
ture
Pro
tect
ion
Wa
ter
Coil
FP2
Se
nso
r, Lo
w T
em
pera
ture
Pro
tect
ion
Air
Coil
HP
H
igh-
Pres
sure
Sw
itch
HPW
S
Hig
h-Pr
essu
re W
ate
r Swi
tch
JW1
Cl
ippa
ble
Fie
ld S
ele
ctio
n J
um
per
LOC
Lo
ss o
f Cha
rge
Pres
sure
Sw
itch
MV
M
oto
rized
Va
lveM
VES
M
oto
rized
Va
lve E
nd Sw
itch
NEC
N
atio
nal
Ele
ctric
al C
ode
P1
Fiel
d W
irin
g Te
rmin
al B
lock
PB
Pow
er Bl
ock
RVS
R
ever
sing
Val
ve So
leno
idTR
AN
S
Tra
nsf
orm
er
TXV
Th
erm
ost
atic
Exp
ansio
n V
alve
Fiel
d Li
ne
Vol
tage
Wiri
ng
Fiel
d Lo
w Vo
ltage
Wiri
ng
Prin
ted
Circ
uit T
race
Opt
ion
al W
irin
g
-
14
Fig.
16
50
PCH,
PCV
Units
with
Co
mpl
ete
C an
d LO
N C
ontro
ller
(460
V)
Co
mp
lete
C
a50-
8493
LEG
END
AL
Al
arm
Rel
ay C
onta
cts
BM
Bl
ower
M
otor
BM
C
Blow
er M
otor
Cap
aci
tor
BR
Bl
ower
R
elay
CB
Circ
uit B
reak
er
CC
Com
pres
sor
Cont
acto
rCO
Se
nsor
, Co
nde
nsa
te O
verfl
owFP
1
Sens
or, Lo
w T
empe
ratu
re P
rote
ctio
n, W
ate
r Co
ilFP
2
Sens
or, Lo
w T
empe
ratu
re P
rote
ctio
n, A
ir Co
ilH
P
Hig
h-Pr
ess
ure
Swi
tch
HPW
S
Hig
h-Pr
essu
re W
ate
r Swi
tch
JW1
Cl
ippa
ble
Fiel
d Se
lect
ion
Jum
per
LOC
Lo
ss o
f Cha
rge
Pres
sure
Sw
itch
LON
Lo
cal O
pera
ting
Netw
ork
MV
M
oto
rize
d Va
lveM
VES
M
oto
rize
d Va
lve E
nd S
witc
hN
EC
Nat
ion
al E
lect
rical
Cod
e*O
ptio
nal
Wiri
ng.
P1
Fiel
d W
irin
g Te
rmin
al B
lock
RVS
R
ever
sing
Val
ve So
leno
idTR
AN
S
Tra
nsf
orm
er
TXV
Th
erm
ost
atic
Exp
ansio
n V
alve
Fiel
d Li
ne
Vol
tage
Wiri
ng
Fiel
d Lo
w Vo
ltage
Wiri
ng
Prin
ted
Circ
uit T
race
Opt
ion
al W
irin
gR
elay
/Con
tact
or Co
il
Cond
ensa
te P
an
Sole
noid
Coi
l
Tem
pera
ture
Sw
itch
Ther
mis
tor
Gro
un
d
Wire
Nut
Rel
ay C
onta
cts
- N.C
.
Rel
ay C
onta
cts
- N.O
.
Low
Pre
ssur
e Sw
itch
Hig
h Pr
essu
re Sw
itch
Splic
e Ca
pCi
rcui
t Bre
ake
r
NOT
ES:
1.Co
mpr
ess
or
an
d bl
owe
r m
oto
r th
erm
ally
pro
tect
ed
inte
rna
lly.
2.Al
l wiri
ng
to th
e u
nit
mu
st c
ompl
y w
ith N
EC a
nd lo
cal c
ode
s.3.
Tra
nsf
orm
er is
wire
d to
46
0 v
BLK/
RED
lead
for
460-
3-60
u
nits
. Tr
an
s-fo
rme
r is
ene
rgy
limiti
ng o
r m
ay h
ave
ci
rcui
t bre
ake
r.4.
FP1
ther
mis
tor
prov
ides
lo
w t
em
pera
ture
pro
tect
ion
for
wat
er. W
hen
usi
ng
antif
ree
ze s
olut
ion
s, cu
t JW
3 jum
per.
5.R
efe
r to
m
icro
pro
cess
or
con
trol,
LON,
o
r th
erm
ost
at
inst
alla
tion
inst
ruct
ion
s fo
r w
irin
g to
th
e u
nit.
Wire
N
01 f
rom
LO
N to
Y1
Com
-pl
ete
C w
hen
a m
oto
rize
d va
lve is
n
ot u
sed.
Lo
w v
olta
ge w
iring
mu
stbe
Cl
ass
1 a
nd
volta
ge r
atin
g e
qual
to
or
gr
ea
ter
than
u
nit
supp
lyvo
ltage
.
6.Fa
cto
ry c
ut J
W1
jumpe
r. D
ry c
onta
ct w
ill be
av
aila
ble
bet
wee
n A
L1 a
nd
AL2.
7.Tr
an
sfo
rmer
se
cond
ary
gro
un
d vi
a gr
ee
n w
ire w
ith y
ello
w s
trip
from
C
term
ina
l to
contro
l box
.8.
Fan m
oto
rs a
re fa
ctor
y wi
red
for
me
dium
sp
eed.
Fo
r hi
gh or
lo
w s
peed
,
rem
ove
BLU
wire
fro
m fa
n m
oto
r sp
eed
tap
M a
nd
conn
ect
to H
fo
rhi
gh s
peed
o
r L
fo
r lo
w s
pee
d.9.
For
low
spe
ed,
re
mov
e BL
K w
ire fr
om
BR
6 a
nd
repl
ace
with
RED
.
Con
ne
ct BL
K an
d BR
N wi
res
toge
ther
.
10.
Opt
iona
l LO
N wi
res.
O
nly
conn
ect
if LO
N c
onn
ect
ion
is d
esire
d at
th
ew
all
sen
sor.
11.
For
blow
er
mo
tors
with
lea
ds. Fo
r m
ediu
m o
r lo
w s
pee
d, di
scon
nect
BLK
wire
fro
m B
R 6
. Co
nnec
t BL
K an
d O
RG
/PUR
wire
to
geth
er.
Con
ne
ct R
ED fo
r lo
w o
r BL
U fo
r m
edi
um
to B
R 6
.
12.
Blow
er
mo
tor
fact
ory
wire
d to
m
ediu
m s
peed
. Fo
r lo
w s
pee
d re
mov
eBL
U wi
re fr
om
me
dium
tap
and
con
ne
ct to
lo
w s
peed
tap.
Fo
r hi
ghsp
eed,
re
mov
e BL
U wi
re fr
om
exi
sitin
g sp
eed
tap
and
rem
ove
BR
Njum
per w
ire fro
m hi
gh s
peed
ta
p. Co
nne
ct B
LU w
ire to
hig
h sp
eed
tap.
Tape
o
ff u
nco
nne
cted
e
nd o
f BRN
jump
er.13
.Th
e 46
0-v
units
usi
ng a
n in
tern
al s
eco
ndar
y pu
mp
will
requ
ire a
neu
-tra
l wire
from
th
e s
upp
ly si
de in
ord
er to
fe
ed
the
acc
ess
ory
w
ith 2
65-v
.
-
15
Del
uxe
D
NOT
ES:
1.Co
mpr
esso
r an
d bl
owe
r m
oto
r th
erm
ally
pro
tect
ed in
tern
ally
.
2.Al
l wiri
ng to
th
e u
nit
must
co
mpl
y w
ith N
EC a
nd lo
cal c
odes
.
3.Tr
ansf
orm
er is
wire
d to
46
0-v
BLK/
RED
lead
fo
r 46
0-3-
60 u
nits
. Tr
an
s-fo
rme
r is
en
erg
y lim
iting
o
r m
ay h
ave
ci
rcu
it br
ea
ker.
4.FP
1 th
erm
isto
r pr
ovid
es lo
w t
em
pera
ture
pro
tect
ion
for
wa
ter.
W
hen
usi
ng a
ntif
ree
ze s
olu
tion
s, cu
t JW
3 jum
per.
5.R
efer
to
m
icro
pro
cess
or c
on
trol,
LON,
th
erm
ost
at in
stal
latio
n in
stru
c-tio
ns
for
wiri
ng
to th
e un
it. W
ire N
01 f
rom
LO
N to
Y1
Del
uxe
D
whe
nm
oto
rized
va
lve is
not
use
d. Th
erm
ost
at w
irin
g m
ust
be
Clas
s 1
and
volta
ge ra
ting
equa
l to
o
r gr
ea
ter
tha
n u
nit
supp
ly vo
ltage
.
6.Fa
cto
ry c
ut J
W4
jumpe
r. Dry
co
ntac
t will
be av
aila
ble
bet
we
en AL
1 an
dAL
2.7.
Tran
sfo
rmer
sec
onda
ry g
roun
d via
gre
en
wire
with
ye
llow
stri
pe fro
mC
te
rmin
al t
o co
ntro
l box
.8.
Blow
er
mot
or is
fact
ory
wire
d fo
r m
edi
um a
nd
high
spe
eds
. Fo
r an
yo
ther
co
mbi
natio
n of
sp
ee
ds, a
ttach
bla
ck w
ire to
th
e h
ighe
r of t
he tw
ode
sire
d sp
ee
d ta
ps a
t the
mot
or, an
d at
tach
the
blue
w
ire to
th
e lo
we
r of
the
two
de
sire
d sp
eed
taps
.
9.Bl
owe
r m
otor
is fa
cto
ry w
ired
for
high
a
nd lo
w s
pee
ds. N
o o
ther
co
mbi
-n
atio
n is
av
aila
ble.
10.
Opt
ion
al L
ON
wire
s. O
nly
conn
ect i
f LO
N c
onne
ctio
n is
des
ired
at th
ew
all
sens
or.
11.
The
460-
v un
its u
sin
g an
in
tern
al se
con
dary
pu
mp
will r
equ
ire a
ne
utra
lw
ire fr
om
the
supp
ly sid
e in
ord
er to
fe
ed th
e ac
cess
ory
with
265
-v.
Fig.
17
50
PCH,
PCV
units
w
ith D
elux
e D
and
LO
N C
ontr
olle
r (46
0 V)
LEG
END
AL
Al
arm
Rel
ay C
onta
cts
BM
Bl
owe
r M
oto
rB
MC
Bl
owe
r M
oto
r Ca
pacit
or
BR
Bl
owe
r R
elay
CB
Circ
uit B
rea
ker
CC
Com
pre
sso
r Co
nta
ctor
CO
Sen
sor,
Co
nden
sate
Ove
rflow
FP1
Se
nso
r, Lo
w T
em
pera
ture
Pro
tect
ion,
W
ate
r Co
ilFP
2
Sen
sor,
Lo
w T
em
pera
ture
Pro
tect
ion,
Ai
r Coi
lH
P
Hig
h-Pr
essu
re Sw
itch
HPW
S
Hig
h-Pr
essu
re W
ate
r Swi
tch
JW1
Cl
ippa
ble
Fie
ld S
ele
ctio
n J
um
per
LOC
Lo
ss o
f Cha
rge
Pres
sure
Sw
itch
LON
Lo
cal O
pera
ting
Net
wo
rkM
V
Mot
oriz
ed V
alve
MVE
S
Mot
oriz
ed V
alve
End
Sw
itch
NEC
N
atio
nal E
lect
rical
Cod
e*O
ptio
nal W
iring.
P1
Fiel
d W
irin
g Te
rmin
al B
lock
RVS
R
ever
sing
Val
ve So
leno
idTR
AN
S
Tra
nsf
orm
er
TXV
Th
erm
ost
atic
Exp
ansio
n V
alve
Fiel
d Li
ne
Vol
tage
Wiri
ng
Fiel
d Lo
w Vo
ltage
Wiri
ng
Prin
ted
Circ
uit T
race
Opt
ion
al W
irin
gR
elay
/Con
tact
or Co
il
Cond
en
sate
Pa
n
Sole
noid
Coi
l
Tem
pera
ture
Sw
itch
Ther
mis
tor
Gro
un
d
Wire
N
ut
Rel
ay C
onta
cts
- N.C
.
Rel
ay C
onta
cts
- N.O
.
Low
Pre
ssu
re S
witc
h
Hig
h Pr
ess
ure
Swi
tch
Splic
e Ca
pCi
rcui
t Bre
ake
r
a50-
8440
-
16
WH
SP-O
PEN
FSD
Fig.
18
Un
its w
ith C
ompl
ete
C a
nd
WSH
P O
pen
M
ultip
le Pr
otoc
ol C
on
tro
ls
A50-8697
LEG
END
BM
Bl
owe
r M
otor
BR
Bl
owe
r R
elay
CO
Cond
ensa
te O
verfl
owFS
D
Fire
Sm
oke
De
tect
or
LWT
Le
avin
g W
ate
r Te
mpe
ratu
reN
.C.
N
orm
ally
Clo
sed
OAD
O
utsid
e Ai
r Dam
per
OCC
O
ccup
ancy
Inpu
t Con
tact
RH
R
elat
ive H
umid
itySA
T
Supp
ly Ai
r Te
mpe
ratu
reSP
T
Spac
e Te
mpe
ratu
re
-
17
WSH
P-O
PEN
FSD
Fig.
19
Un
its w
ith D
elux
e D
a
nd
WSH
P O
pen
Mul
tiple
Pr
otoc
ol C
ontro
ls
A50-8698
LEG
END
BM
Bl
owe
r M
otor
BR
Bl
owe
r R
elay
CO
Cond
ensa
te O
verfl
owFS
D
Fire
Sm
oke D
ete
ctor
LWT
Le
avin
g W
ate
r Te
mpe
ratu
reN
.C.
N
orm
ally
Clo
sed
OAD
O
utsi
de A
ir Da
mpe
rO
CC
Occ
upan
cy In
put C
onta
ctR
H
Rel
ative
H
umid
itySA
T
Supp
ly Ai
r Te
mpe
ratu
reSP
T
Spac
e Te
mpe
ratu
re
-
18
012207-1BT485BT
LED1
DB
Inst
all
BT48
5 w
here
de
vice
is
loca
ted
at t
he e
nd o
f ne
twor
k se
gme
nt o
nly.
+ 2
4vac
(If no
t ins
talle
d, it
mu
st b
e co
nne
cte
d to
DO
-5)
DEH
UMID
IFY
OUT
PUT
CON
TACT
(DO
-6) (
FACT
ORY
OPT
ION)
FAN
SPE
ED (D
O-7)
(MED
O
R LO
W)
OA
DAM
PER
(AO-
2)
FAN
SPE
ED (D
O-8)
(HIG
H O
R FA
N O
N )
LWT
(Inpu
t 6)
SAT
(LAT)
(In
put 7
)
SPAC
E CO
2 SE
NSO
R+
24va
c
4-20
mA
+ -
RED YLW
ORN
BRN
PIN
KVI
OPI
NK
AO1
Au
x R
ehea
t or
Cond
.
WTR
. Loo
p Ec
on. (A
O 1
)
BLU
RED
BRN
-G
nd
Cond
ens
ate
Ove
rflow
Sw
itch
(DI-3
/Dry
Con
tact
)
GRN
Fan
(D
O-1)
(Fa
n O
n or
Lo
w S
pee
d)PI
NK
Aux
Hea
t (DO
-2)
ORN
Rev
ersi
ng V
alve
(DO-
3)Co
mp
#2 (D
O-4)
Com
p #1
(DO
-5)
BLU
Com
p St
atu
s (D
I-5)
SPT
PLUS
Se
nso
r Sh
own
+12V
Rnet-
Rnet+
Gnd
RED
BLACK
WHITE
GREEN
To WSHP Controller Rnet Terminals (J13)
FIEL
D IN
STAL
LED
1234
0 5
1
6
2
7
3
8
4
90 5
1
6
2
7
3
8
4
9
12
34
56
78
ON
12
34
56
78
12
12
34
1234
12
3
12345678
GRE
ENW
HITE
BLAC
KR
ED
Fiel
d In
sta
lled
J5
J12
J13
J20
J19
J22
J17
J11 J14
ToSP
T PL
US
12
34
56
11
107
J4
J1J2
SW3
MSB
LSB
MST
P Ba
ud
9600
19
.2k
38
.4k
76
.8k
SPAC
E R
H
SENS
OR
+24
vac
4-20
mA
+ -
WH
T
FIEL
D IN
STAL
LED
(OPT
IONA
L) S
EE N
OTE
2
Loca
l Acc
ess
Port
a50-8380
Fig.
20
W
SHP
Ope
n C
ontro
l
WSH
P O
pen
Inpu
ts a
nd O
utp
uts
Tab
le
*Th
ese
in
puts
are
con
figu
rabl
e.
INPU
T/O
UTPU
T TY
PEPA
RT
NUM
BER
STY
PE O
F I/O
CON
NEC
TIO
NPI
N N
UMBE
RSCH
ANNE
LD
ESIG
NATI
ON
Inpu
tsSp
ace
Tem
pera
ture
Se
nso
rSP
S, SP
PL, S
PPCo
mm
unic
atin
gJ1
3, 1
- 4
Loca
l Acc
ess
Port
Spac
e R
ela
tive
Hu
mid
ity33
ZCSE
NSR
H-01
AI (4
- 20
mA)
J4, 5
an
d 6
Anal
og In
put 1
Indo
or
Air
Qua
lity
33ZC
SEN
CO2
AI (4
-20
mA)
J4, 2
an
d 3
Anal
og In
put 2
Con
den
sate
Swi
tch
N/A
BI (D
ry Co
nta
cts)
J1, 2
Bina
ry In
put 3
Sta
ge 1
Co
mpr
esso
r St
atu
sN
/ABI
(D
ry Co
nta
cts)
J1, 1
0Bi
na
ry In
put 5
Leav
ing
Con
den
ser
Wat
er T
empe
ratu
re10
K Ty
pe II
AI (1
0K T
herm
isto
r)J2
, 1 a
nd
2An
alog
Inpu
t 6Su
pply
Air
Tem
pera
ture
33ZC
SENS
ATAI
(10K
The
rmis
tor)
J2, 3
an
d 4
Anal
og In
put 7
Out
puts
Mod
ulat
ing
Valve
(A
uxil
iary
He
at/W
ater
Econ
omize
r)N
/AAO
(0-
10Vd
c/2
- 10
Vdc)
J2 4
and
5*
Ana
log
Ou
tpu
t 1
Ou
tsid
e Ai
r D
am
per
N/A
AO (0-
10Vd
c/2
- 10
Vdc)
J22
1 a
nd 2
*An
alo
g O
utp
ut 2
Supp
ly Fa
n O
n/Lo
w Sp
eed
(3 Sp
eed
Only)
N/A
BO R
elay
(24
VAC,
1A
)J1
, 4*
Bin
ary
Ou
tput 1
(G
)Au
xilia
ry He
at o
r 2-
Posi
tion
W
ate
r Lo
op
Eco
nom
izer
N/A
BO R
elay
(24
VAC,
1A
)J1
, 5*
Bin
ary
Ou
tput 2
Rev
ers
ing
Valve
(B or
O
O
pera
tion)
N/A
BO R
elay
(24V
AC, 1A
)J1
, 6*
Bina
ry O
utpu
t 3 (R
V)Co
mpr
esso
r 2n
d St
age
N/A
BO Re
lay
(24VA
C, 1A
)J1
, 7
Bina
ry O
utp
ut 4
(Y2)
Com
pres
sor
1st S
tage
N/A
BO R
elay
(24V
AC, 1A
)J1
, 8Bi
nary
Out
put 5
(Y
1)D
ehu
mid
ificat
ion R
elay
N/A
BO R
elay
(24V
AC, 1A
)J1
1, 7
and
8 (N
O)
Bina
ry O
utpu
t 6Fa
n S
peed
Med
ium
/Low
(3
Spe
ed O
nly)
N/A
BO R
ela
y (24
VAC,
1A
)J1
1, 5
and
6 (N
O)*
Bin
ary
Out
put 7
Fan
Spe
ed H
igh/
Low
(3
Spe
ed O
nly)
N/A
BO R
ela
y (24
VAC,
1A
) J1
1, 2
an
d 3
(NO
)*Bi
nar
y O
utpu
t 8
SPT
PLUS
Se
nso
r Sh
own
+12V
Rnet-
Rnet+
Gnd
RED
BLACK
WHITE
GREEN
To WSHP Controller Rnet Terminals (J13)
FIEL
D IN
STAL
LED
LEG
END
NOT
ES:
1.M
oun
t the
wat
er
sou
rce
he
at pu
mp
con
trolle
r in
th
e eq
uip
me
nt c
ontro
ls en
clo
sure
w
ithat
le
ast t
wo
no.
6
x 1
in. se
lf-ta
ppin
g sc
rew
s. Al
low
a
dequ
ate
cle
ara
nce
fo
r w
iring
.
2.Ve
rify
sen
sor
pow
er
and
wiri
ng
requ
irem
ent
s pr
ior
to
