Embed Size (px)
Citation preview
Air-Cooled Liquid Chillers
30XA 252-1502Nominal cooling capacity 274 - 1523 kW
The Aquaforce liquid chillers are the premium solution forindustrial and commercial applications where installers,consultants and building owners require optimal performan-ces and maximum quality.The Aquaforce liquid chillers are designed to meet currentand future requirements in terms of energy efficiency andoperating sound levels. They use the best technologies avail-able today:- Twin-rotor screw compressors with a variable capacity
valve.- Pure R134a refrigerant.- Low-noise generation IV Flying Bird fans made of com-
posite material.- Micro-channel heat exchangers (MCHX).- Touch-screen Pro-Dialog control system.
To meet to all environmental and economic requirements, theAquaforce is available in two versions :One offers an extremely low noise level while at the same timeboasting superior energy efficiency.The other offers unequalled energy efficiency to satisfy themost stringent demands of building owners wanting to reduceoperating costs to the minimum. This version is also used forapplications in geographical zones where the air temperature isvery high.
Features and advantages
Very economical operation ■ Extremely high full load and part load energy efficiency:
- Average EER of 3.20 kW/kW- Average integrated part load value (IPLV) of 4.20 kW/kW- New twin-rotor screw compressor equipped with a high-
efficiency motor and a variable capacity valve that permitsexact matching of the cooling capacity to the load.
- All aluminium heat exchanger with micro-channels that ismore efficient than a copper/aluminium coil.
- Flooded multi-pipe evaporator.- Electronic expansion device permitting operation at a lower
condensing pressure and improved utilisation of theevaporator heat exchange surface (superheat control).
- Economizer system with electronic expansion device forincreased cooling capacity
Low operating sound levels■ Compressors
- Discharge dampers integrated in the oil separator (Carrierpatent).
- Suction piping with flexible connections to prevent noiseand vibration transmission.
- Acoustic compressor and oil separator enclosure reducingradiated noise. (Option)
■ Condenser section- Condenser coils in V-shape with an open angle, allowing
quieter air flow across the coil.
ADVANCE PRODUCT DATA
- Low-noise 4th generation Flying Bird fans, made of a com-posite material (Carrier patent) are now even quieter and donot generate intrusive low-frequency noise.
- Rigid fan mounting preventing start-up noise (Carrierpatent).
Easy and fast installation■ Integrated hydronic module (option)
- Centrifugal low or high-pressure water pump (as required),based on the pressure loss of the hydronic installation.
- Single or dual pump (as required) with operating time bal-ancing and automatic changeover to the back-up pump if afault develops.
- Water filter protecting the water pump against circulatingdebris
- High-capacity membrane expansion tank ensures pressuri-sation of the water circuit.
- Thermal insulation and aluminium protection.- Pressure gauge to check filter pollution and measure the
system water flow rate.- Water flow control valve.
■ Simplified electrical connections- Main disconnect switch with high trip capacity.- Safe 24 V control circuit.
■ Fast commissioning- Systematic factory operation test before shipment.- Quick-test function for step-by-step verification of the
instruments, expansion devices, fans and compressors.
Environmental care■ R134a refrigerant
- Refrigerant of the HFC group with zero ozone depletionpotential.
- 30% reduction in the refrigerant charge through the use ofmicro-channel heat exchangers.
■ Leak-tight refrigerant circuit- Reduction of leaks as no capillary tubes and flare connec-
tions are used.- Verification of pressure transducers and temperature sen-
sors without transferring refrigerant charge.- Discharge shut-off valve and liquid line service valve for
simplified maintenance.
Absolute reliability■ Screw compressors
- Industrial-type screw compressors with oversized bearingsand motor cooled by suction gas.
- All compressor components are easily accessible on siteminimising down-time.
- Protection increased by an electronic board.
■ All aluminium micro-channel heat exchanger - Corrosion resistance five times higher than for a traditional
coil. The all aluminium design eliminates the formation ofgalvanic currents between aluminium and copper that causecoil corrosion in saline or corrosive environments.
■ Auto-adaptive control- Control algorithm prevents excessive compressor cycling
(Carrier patent).- Automatic compressor unloading in case of abnormally
high condensing pressure. If condenser coil fouling or fanfailure occurs, the Aquaforce continues to operate, but atreduced capacity.
■ Exceptional endurance tests- Partnership with specialised laboratories and use of limitsimulation tools (finite element calculation) for the design ofcritical components.
- Transport simulation test in the laboratory on a vibratingtable. The test is based on a military standard and equiva-lent to 4000 km by truck.
- Salt mist corrosion resistance test in the laboratory forincreased corrosion resistance.
Pro-Dialog controlPro-Dialog Plus combines intelligence with operating sim-plicity. The control constantly monitors all machine parame-ters and precisely manages the operation of compressors,electronic expansion devices, fans and of the evaporatorwater pump for optimum energy efficiency.
■ Energy management- Internal time schedule clock: controls chiller on/off times
and operation at a second set-point.- Set-point reset based on the outside air temperature or the
return water temperature.- Master/slave control of two chillers operating in parallel
with operating time equalisation and automatic change-over in case of a unit fault.
■ Ease-of-use- User interface with large touch screen (120 x 99 mm) for
intuitive access to the operating parameters. The informa-tion is in clear text and can be displayed in local language(please contact your distributor).
Remote management (standard)Aquaforce is equipped with an RS485 serial port that offersmultiple remote control, monitoring and diagnostic possibili-ties. Carrier offers a vast choice of control products, speciallydesigned to control, manage and supervise the operation ofan air conditioning system. Please consult your Carrier repre-sentative for more information.Aquaforce also communicates with other building manage-ment systems via optional communication gateways.A connection terminal allows remote control of theAquaforce by wired cable:- Start/stop: opening of this contact will shut down the unit- Dual set-point: closing of this contact activates a second
set-point (example: unoccupied mode).- Demand limit: closing of this contact limits the maximum
chiller capacity to a predefined value.- User safety: this contact is connected in series with the
water flow switch and can be used for any customer safetyloop.
- Heat reclaim (option): closing of this contact allows heatreclaim mode operation.
- Water pump 1 and 2 control*: these outputs control thecontactors of one or two evaporator water pumps.
- Water pump on reversal*: these contacts are used to detecta water pump operation fault and automatically changeover to the other pump.
- Operation indication: this volt-free contact indicates thatthe chiller is operating (cooling load) or that it is ready tooperate (no cooling load).
- Alert indication: this volt-free contact indicates the pres-ence of a minor fault.
- Alarm indication: this volt-free contact indicates the pres-ence of a major fault that has led to the shut-down of one ortwo refrigerant circuits.
* not available for units with the hydronic module option.
Remote management (EMM option)The Energy Management Module offers extended remotecontrol possibilities:- Room temperature: permits set-point reset based on the
building indoor air temperature (with Carrier thermostat).- Set point reset: ensures reset of the cooling set-point based
on a 4-20 mA or 0-5 V signal.
2
- Demand limit: permits limitation of the maximum chillerdemand based on a 0-10 V signal.
- Demand limit 1 and 2: closing of these contacts limits themaximum chiller capacity to two predefined values.
- User safety: this contact can be used for any customer safe-ty loop; opening of the contact generates a specific alarm.
- Ice storage end: when ice storage has finished, this inputpermits return to the second set-point (unoccupied mode)
- Time schedule override: closing of this contact cancels thetime schedule effects.
- Out of service: this signal indicates that the chiller is com-pletely out of service.
- Chiller capacity: this analogue output (0-10 V) gives animmediate indication of the chiller capacity.
3
06T screw compressor
New generation screw compressorThe new generation of the Carrier 06T screw compressorsbenefits from Carrier's long experience in the development oftwin-rotor screw compressors. The compressor is equippedwith bearings with oversized rollers, oil pressure lubricatedfor reliable and durable operation, even at maximum load.A variable control valve controlled by the oil pressure per-mits infinitely variable cooling capacity. This system allowsoptimal adjustment of the compressor cooling capacity andensures exceptionally high stability of the chilled water leav-ing temperature.Another advantage: if a fault occurs e.g. if the condenser isfouled or at very high outside temperature, the compressor
does not switch off, but continues operation with a reducedcapacity.The compressor is equipped with a separate oil separator thatminimises the amount of oil in circulation in the refrigerantcircuit and considerably reduces discharge gas pulsations formuch quieter operation.
4
All aluminium micro-channel heat exchanger (MCHX) Already utilised in the automobile and aeronautical industriesfor many years, the MCHX used in the Aquaforce is entirelymade of aluminium. This one-piece concept significantlyincreases its corrosion resistance by eliminating the galvaniccurrents that are created when two different metals (copperand aluminium) come into contact in traditional heatexchangers.
The MCHX heat exchanger is approximately 10% more effi-cient than a traditional coil and allows a 30% reduction in theamount of refrigerant used in the chiller. The low thicknessof the MCHX reduces air pressure losses by 50% and makesit less susceptible to fouling (e.g. by sand) than a traditionalcoil. Cleaning of the MCHX heat exchanger is very fastusing a high-pressure washer.
All aluminium micro-channel heat exchanger
Touch screen Pro-Dialog operator interface
Operating limitsEvaporator water temperature
°C Minimum MaximumWater entering temperature at start-up - 45Water entering temperature during operation 6,8 21Water leaving temperature during operation 4 15Note: If the air temperature is below 4°C, a glycol/water solution or the frost protection option must be used.
Condenser air temperature °C Minimum Maximum
Storage -20 68OperationStandard unit -10 -With winter operation option (No. 28) -20 -Operation Standard unit - 55
Note: If the air temperature is below 3°C, a glycol/water solution or the frost protection option must be used.
5
Physical data30XA 252 302 352 402 452 502 602 702 752Nominal cooling capacity*Standard Unit kW 274 300 326 393 451 508 616 677 726Nominal C.O.P. kW 3.13 3.12 3.11 3.28 3.21 3.29 3.22 3.33 3.11Operating weight** Standard unit kg 3551 3597 3632 4454 4524 4992 5868 6022 6304Copper/aluminium coil (option 254) kg 3871 3903 4427 4865 4931 5499 6474 6641 7402Refrigerant R134ACircuit A kg 36 37 37 53 54 63 62 62 70Circuit B kg 38 38 39 37 39 39 62 66 62Circuit A copper/aluminium coil (option 254) kg 60 55 70 85 85 102 102 102 110Circuit B copper/aluminium coil (option 254) kg 64 56 56 56 56 56 88 105 88Compressors 06T semi-hermetic screw compressors, 50 r/sCircuit A 1 1 1 1 1 1 1 1 1Circuit B 1 1 1 1 1 1 1 1 1Minimum capacity % 15 14 15 11 11 10 14 15 11Control PRO-DIALOG, electronic expansion valve (EXV)Condensers Aluminium micro-channel heat exchangerFans FLYING BIRD IVQuantityStandard unit 6 6 6 8 8 9 11 12 12Copper/aluminium coil (option 254) 6 6 7 8 8 9 11 12 13Evaporator Flooded multi-pipe typeWater content l 58 61 61 66 70 77 79 94 98Maximum operating pressure kPa 1000 1000 1000 1000 1000 1000 1000 1000 1000Water connections VictaulicDiameter in 5 5 5 5 5 5 5 6 6Outside diameter mm 141.3 141.3 141.3 141.3 141.3 141.3 141.3 168.3 168.3
30XA 852 902 1002 1202 1352 1502Nominal cooling capacity*Standard unit kW 838 899 1000 1246 1442 1523Nominal C.O.P. kW 3.26 3.14 3.22 3.21 3.11 3.27Operating weight** Standard unit kg 7137 7419 8022 10282 10996 12155Copper/aluminium coil (option 254) kg 7842 8590 8836 11294 12018 13365Refrigerant R134ACircuit A 77 70 77 70 70 90Circuit B 66 75 84 62 63 85Circuit C - - - 84 80 97Circuit D - - - - - -Circuit A copper/aluminium coil (option 254) kg 120 110 130 112 110 130Circuit B copper/aluminium coil (option 254) kg 98 110 125 96 105 125Circuit C copper/aluminium coil (option 254) kg - - - 120 120 120Circuit D copper/aluminium coil (option 254) kg - - - - - -Compressors 06T semi-hermetic screw compressors, 50 r/sCircuit A 1 1 1 1 1 1Circuit B 1 1 1 1 1 1Circuit C - - - 1 1 1Circuit D - - - - - -Minimum capacity % 12 15 15 7 9 10Control PRO-DIALOG, electronic expansion valve (EXV)Condensers Aluminium micro-channel heat exchangerFans FLYING BIRD IVQuantityStandard unit 14 14 16 20 20 24Copper/aluminium coil (option 254) 14 15 16 20 20 24Evaporator Flooded multi-pipe type Water content l 119 130 140 182 224 240Maximum operating pressure kPa 1000 1000 1000 1000 1000 1000Water connections VictaulicDiameter, inlet/outlet in 6 6 8 6 6/8 6/8Outside diameter, inlet/outlet mm 168.3 168.3 219.1 168.3 168.3/
219.1168.3/219.1
* Nominal conditions: evaporator entering/leaving water temperature = 12°C/7°C. Outdoor air temperature = 35°C Evaporator fouling factor = 0.000018 m2 K/W** Weights are guidelines only.
Note: Unit size 30XA 1502 is supplied in 2 field-assembled modules.
6
Electrical data30XA 252 302 352 402 452 502 602 702 752Power circuitNominal power supply V-ph-Hz 400-3-50Maximum supply cable sectionCircuits A+B mm² 1 x 240/ 1 x 240/ 1 x 240/ 2 x 240 2 x 240 2 x 240 3 x 240 3 x 240 4 x 240
2 x 150 2 x 150 2 x 150Short circuit holding currentCircuits A+B kA rms 38 38 38 38 38 38 50 50 50Control circuit 24V via internal transformer
Maximum unit current drawn (A)* 216 240 264 304 345 376 457 488 552Maximum starting current (A)* 267 267 289 400 507 507 579 608 778Nominal unit current drawn (A)** 149 165 182 210 239 262 320 343 404
*At maximum operating conditions**At nominal operating conditions: air 35°C, water 12/7°C
7
Electrical data30XA 852 902 1002 1202 1352 1502Power circuitNominal power supply V-ph-Hz 400-3-50Maximum supply cable sectionCircuits A+B mm2 5 x 240 6 x 240 6 x 240 4 x 240 6 x 240 6 x 240Circuits C+D mm2 - - - 3 x 240 3 x 240 3 x 240Short circuit holding currentCircuits A+B kA rms 50 50 50 50 50 50Circuits C+D kA - - - 50 50 50Control circuit 24V via internal transformer
Maximum unit current drawn (A)* 642 678 796 950 1123 1194Maximum starting current (A)* 807 892 945 1176 1316 1383Nominal unit current drawn (A)** 446 511 549 678 794 824
*At maximum operating conditions**At nominal operating conditions: air 35°C, water 12/7°C
Note: Unit sizes 30XA 1202 to 1502 have two power connection points (circuits A + B and circuits C + D). Maximum starting current means (maximum operating current of the smallest compressor(s) + fan current + locked rotor current or reduced starting current of the largest compressor).
8
Dimensions/clearances30XA 252-302-352
Ø 1
41.3
Vict
aulic
type
75
Ø 1
41.3
Vict
aulic
type
75
Leg
end
:A
ll di
men
sion
s ar
e gi
ven
in m
m.
Req
uire
d cl
eara
nces
for
mai
nten
ance
and
air
flow
Rec
omm
ende
d sp
ace
for
evap
orat
or tu
be re
mov
al
Wat
er in
let
Wat
er o
utle
t
NO
TE: D
raw
ings
are
not
con
trac
tual
ly b
indi
ng.
Bef
ore
desi
gnin
g an
inst
alla
tion,
con
sult
the
cert
ified
dim
ensi
onal
dra
win
gs, a
vaila
ble
onre
ques
t.
Dimensions/clearances30XA 402-45230XA 352 with copper/aluminium coils (options 254/255)
5/8”
SA
E M
flar
e
Ø 1
41.3
Vict
aulic
type
75
12
Ø 1
41.3
Vict
aulic
type
75
Leg
end
:A
ll di
men
sion
s ar
e gi
ven
in m
m.
Req
uire
d cl
eara
nces
for
mai
nten
ance
and
air
flow
Rec
omm
ende
d sp
ace
for
evap
orat
or tu
be re
mov
al
Wat
er in
let
Wat
er o
utle
t
NO
TE: D
raw
ings
are
not
con
trac
tual
ly b
indi
ng.
Bef
ore
desi
gnin
g an
inst
alla
tion,
con
sult
the
cert
ified
dim
ensi
onal
dra
win
gs, a
vaila
ble
onre
ques
t.
13
Dimensions/clearances30XA 502
Ø 1
41.3
Vict
aulic
type
75
Ø 1
41.3
Vict
aulic
type
75 Le
gen
d:
All
dim
ensi
ons
are
give
n in
mm
.
Req
uire
d cl
eara
nces
for
mai
nten
ance
and
air
flow
Rec
omm
ende
d sp
ace
for
evap
orat
or tu
be re
mov
al
Wat
er in
let
Wat
er o
utle
t
NO
TE: D
raw
ings
are
not
con
trac
tual
ly b
indi
ng.
Bef
ore
desi
gnin
g an
inst
alla
tion,
con
sult
the
cert
ified
dim
ensi
onal
dra
win
gs, a
vaila
ble
onre
ques
t.
14
Dimensions/clearances30XA 602-702-752-802
Ø E
Vict
aulic
type
75
Ø F
Vict
aulic
type
75
30X
A602
702
752
802
A35
637
237
232
5
B27
224
224
228
4
C43
843
843
843
8
D28
5228
5228
5228
38
øE14
1.3
168.
316
8.3
168.
3
øF14
1.3
168.
316
8.3
168.
3
Leg
end
:A
ll di
men
sion
s ar
e gi
ven
in m
m.
Req
uire
d cl
eara
nces
for
mai
nten
ance
and
air
flow
Rec
omm
ende
d sp
ace
for
evap
orat
or tu
bere
mov
al
Wat
er in
let
Wat
er o
utle
t
NO
TE: D
raw
ings
are
not
con
trac
tual
ly b
indi
ng.
Bef
ore
desi
gnin
g an
inst
alla
tion,
con
sult
the
cert
ified
dim
ensi
onal
dra
win
gs, a
vaila
ble
onre
ques
t.
C
A B
15
Dimensions/clearances30XA 852-90230XA 752-802 with copper/aluminium coils (options 254/255)
Ø 1
68.3
Vict
aulic
type
75
Ø 1
68.3
Vict
aulic
type
75
Leg
end
:A
ll di
men
sion
s ar
e gi
ven
in m
m.
Req
uire
d cl
eara
nces
for
mai
nten
ance
and
air
flow
Rec
omm
ende
d sp
ace
for
evap
orat
or tu
be re
mov
al
Wat
er in
let
Wat
er o
utle
t
NO
TE: D
raw
ings
are
not
con
trac
tual
ly b
indi
ng.
Bef
ore
desi
gnin
g an
inst
alla
tion,
con
sult
the
cert
ified
dim
ensi
onal
dra
win
gs, a
vaila
ble
onre
ques
t.
16
Dimensions/clearances30XA 100230XA 902 with copper/aluminium coils (options 254/255)
5/8”
SA
E M
flar
e
Ø E
Vict
aulic
type
75
Ø F
Vict
aulic
type
75
Leg
end
:A
ll di
men
sion
s ar
e gi
ven
in m
m.
Req
uire
d cl
eara
nces
for
mai
nten
ance
and
air
flow
Wat
er in
let
Wat
er o
utle
t
NO
TE: D
raw
ings
are
not
con
trac
tual
ly b
indi
ng.
Bef
ore
desi
gnin
g an
inst
alla
tion,
con
sult
the
cert
ified
dim
ensi
onal
dra
win
gs, a
vaila
ble
onre
ques
t.
C
AB
Leg
end
:A
ll di
men
sion
s ar
e gi
ven
in m
m.
Req
uire
d cl
eara
nces
for
mai
nten
ance
and
air
flow
Rec
omm
ende
d sp
ace
for
evap
orat
or tu
bere
mov
al
Wat
er in
let
Wat
er o
utle
t
NO
TE: D
raw
ings
are
not
con
trac
tual
ly b
indi
ng.
Bef
ore
desi
gnin
g an
inst
alla
tion,
con
sult
the
cert
ified
dim
ensi
onal
dra
win
gs, a
vaila
ble
onre
ques
t.
Vie
w F
Vie
w F
Ø H
D
C
B
A
Ø G
18
Dimensions/clearances30XA 1402-1502 – module 1/2
5/8”
SA
E M
flar
e
Ø 2
19.1
Vict
aulic
type
75
Ø 2
19.1
Vic
taul
ic ty
pe 7
5
Module 2
Leg
end
:A
ll di
men
sion
s ar
e gi
ven
in m
m.
Req
uire
d cl
eara
nces
for
mai
nten
ance
and
air
flow
Wat
er in
let
Wat
er o
utle
t
NO
TE: D
raw
ings
are
not
con
trac
tual
ly b
indi
ng.
Bef
ore
desi
gnin
g an
inst
alla
tion,
con
sult
the
cert
ified
dim
ensi
onal
dra
win
gs, a
vaila
ble
onre
ques
t.
19
Dimensions/clearances30XA 1402-1502 – module 2/2
Ø 1
68.3
Vict
aulic
type
75
5/8”
SA
E M
flar
e
Ø 1
68.3
Vict
aulic
type
75
Mod
ule
1
Leg
end
:A
ll di
men
sion
s ar
e gi
ven
in m
m.
Req
uire
d cl
eara
nces
for
mai
nten
ance
and
air
flow
Wat
er in
let
Wat
er o
utle
t
NO
TE: D
raw
ings
are
not
con
trac
tual
ly b
indi
ng.
Bef
ore
desi
gnin
g an
inst
alla
tion,
con
sult
the
cert
ified
dim
ensi
onal
dra
win
gs, a
vaila
ble
on re
ques
t.
Uni
t siz
es 1
402-
1502
are
sup
plie
d in
two
field
-as
sem
bled
mod
ules
(con
nect
ion
pipe
com
plet
ion
tobe
don
e by
the
inst
alle
r).
Manufactured by: Carrier SCS, Montluel, FranceOrder No. 13449-20, 01.2006 - New. Printed on Totally Chlorine Free Paper.Manufacturer reserves the right to change any product specifications without notice. Printed in the Netherlands.The photograph on the front cover is for illustrative purposes only and is not part of any offer for sale or contract.
