McQuay R410A SINGLE COMPRESSOR SERIES User manual

AIR COOLED CHILLER
(R410A SINGLE COMPRESSOR SERIES)
INSTALLATION MANUAL
Group: Mini Chiller
Part Number: A08019024588
Date: February 2005
IM-5ACC-0205SC
© 2005 McQuay International

English
i
5AC 020/025 CR
1181,610,0 10,0
460,0
85,0 128,5
128,5
789,5
475,0
55,2
80,0 300,0 80,0
OUTLINEAND DIMENSIONS

ii
!Caution Sharp edges and coil surfaces are potential locations which may cause
injury hazards.Avoid from being in contact with these places.
!Avertissement Lesbordscoupantsetlessurfacesdurefroidisseurtuulaireprésentent
unrisquedeblessure.Mieuxvautéviterlecontactaveccesendroits.
!Vorsicht ScharfeKantenundWärmetauscherflächenstelleneineGefahrenquelledar.
Jeglicher Kontakt mit diesen Stellen ist zu vermeiden.
!Cautela Per preservarsi da eventuali ferite, evitare di toccare gli spigoli affilali e la
superficie della serpentina.
!Cuidado LosBordesafiladosylasuperficiedelserpentínpuedenproducirlesiones.
Evite tocarlos.
!Осторожно Острые края и поверхности змеевиков являются
потенциальными местами нанесения травм. Остерегайтесь
контакта с этими местами.
This product is subjected to Waste of Electrical and Electronic Equipment Regulations (WEE
E
Regulations). The waste product shall be separately collected by specific collection and treatment centre
.
P
lease refer to local authorithy for these centres. This is only applicable to European Union countries
.
Ce produit est soumis
à
la r
à
é
r
r
é
é
é
lectriques e
t
é
é
é
ê
é
é
é
é
é
é
é
é
é
î
î
tre ces centres. Ceci
îî
est uniquement applicable aux pays de l'Union Euro
p
é
enne
.
Questo prodotto
è
soggetto alle disposizioni RAEE (Rifiuti di apparecchiature elettriche ed elettroniche)
.
à
à
locali. Questa disposizione
à
è
valida solamente i paes
i
d
el
l
’
U.
E
.
é
ctrico y Electr
ó
n
ico en materia d
e
ñ
ñ
á
í
fico
íí
de colecc
i
ó
solamente aplicable a los p
a
í
ses de la
U
n
i
ó
n
Europea
.
Dieses Produkt unterliegt den Bestimmungen zur Entsorgung von elektrischen und elektronische
n
G
er
ä
ä
ä
tes
ä
ä
ü
ü
ll bei Ihrer
ö
ü
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ndiges Abfall-Amt. Dieser
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ü
f
f
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ischen Union
.
П
р
оцесс
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д
анног
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у
етс
я
п
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авилам
и
п
о
у
тилизаци
и
отхо
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о
в
и
(WEEE Re
g
ulations).
и
,
.
Э
т
и
п
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Ев
р
опейског
о
.
NOTICE

English
iii
MODEL : 5AC 020/025 CR
LIVE
COM2
COM1
BOILER
W_PUMP
OUT_FAN2
4WV2
A_FREEZE
ALM_OUT
ALM_IN
4WV1
OUT_FAN1
AUX-H
12V
F02
F01
LP2
LP1
HP2
HP1
C02
C01
FLOW
PO
ALM
DE2
DE1
C/H
ON/OFF
N
CN6 WI WOOA
CD1 CD2 DF1DF2
COMP DISCHARGE SENSOR (1)
OUTDOOR AIR TEMP SENSOR
LEAVING WATER SENSOR
ENTERING WATER SENSOR
N/L2
220-240/1pH/50Hz
L/L1TB1 12V 12V 12V N1 N1 N1 1 2 O/F PUMPC/H
HEATOFF
COOLON
4WV
HTR AL
IN
AL
OUT
LP HP FL
H
T
R
OF
OUT
OF
IN
TB3
LNC
OF
CSRE
COMP.
LNE
PUMP
FUSE
10A
5B
4B 1A
2A
SWITCH
A
B
COMP
COMP
CAP
98
95
96
C O/L
1
3
2
4
DEFROST SENSOR (1)
TB2
4WV
OF
CAP
R
R
5
7
6
8
R
E
L
A
Y
1
3
2
4
5
7
6
8
R
E
L
A
Y
R1 R2
C
S
PART NO : 50 13 4 066985
ELECTRICALWIRING DIAGRAM

iv
ISOLATOR DIAGRAM
TB1 L/L1 N/L2
N
L1
Power supply 230V / 1Ph-N / 50Hz
5AC/AC020/025 CR
AC TERMINAL BOX
ISOLATOR
E
FUSE

English
This manual provides the procedures of installation to ensure a safe and good standard of operation for the
chiller.
Special adjustments may be necessary to suit local requirements.
Before using the chiller, please read this instruction manual carefully and keep it for future reference.
INSTALLATION MANUAL
AIR COOLED CHILLER
MODEL
Part No.:A08019024588
HEAT PUMP
R410A
5AC 020 CR / M5AC 020 CR
5AC 025 CR / M5AC 025 CR
IM-5ACC-0205SC
!!
!!
!WARNING
• Installation and maintenance should be performed by qualified person who are familiar with local code and
regulation, and experienced with this type of appliance.

1-1
!!
!!
!CAUTION
Please take note of the following important points when installing.
• Do not install the unit where leakage of flammable gas may occur.
If gas leaks and accumulates around the unit, it may cause fire ignition.
• Do not overcharge the unit.
This unit is factory pre-charged. Overcharge will cause over-current or damage to the compressor.
• Sharp edges and aluminium fin coil surface are potential which may cause injury hazards.
Avoid from being in contact with these locations.
INDEX
- OutlineAnd Dimensions page i-ii
- Electrical Wiring Diagram page iii
- Isolator Diagram page iv
- Transportation page 1
- Installation Location page 2
- Unit Installation page 3
- Physical Data page 4
- Water Piping and Fitting page 5
- Electrical And Wiring page 5
- Electrical Data page 5
TRANSPORTATION
• Usespreaderbars orforkliftto lifttheunit toavoiddamage tothepanels. Figure 1providesthe dimensionsofthe cratefor
lifting. Avoid violent movements. Do not remove crate until it is at its final location.
640.0
- Recommended FuseAnd Cable Sizes page 6
- Water Piping System Setup page 7
- Refrigerant Circuit page 7
- Special PrecautionsWhen Dealing With
R410AUnit page 7
- Control Operation Guide page 8
- ServicingAnd Maintenance page 9
- Troubleshooting page 10
- Fan Speed Controller (Optional) page 11
- Isolator Switch Field Installation page 11
Figure 1

1-2
English
500 1000 1000 500
1500
500 500
1500
500
INSTALLATION LOCATION
• Installation work should be done by the authorized dealer or qualified contractor. Never install the unit yourself.
• Make sure there is sufficient space for airflow around the unit. The discharged air should be directed outside using a duct
should the unit be installed in a plant room.
• Vibration isolator should be provided to prevent vibration and noise from the unit.
• When installing the unit on the ground, make sure the selected site is not subject to flooding.
• There should be sufficient space allocated for ventilation, servicing and maintenance when installing the unit. Refer to the
following figures for proper location.
Figure 2: For single unit installation
AIR FLOW
AIR FLOW
MIN 500
Figure 3: For multiple unit installation
AIR FLOW
AIR FLOW
AIR FLOW
AIR FLOW AIR FLOW
MIN 500

1-3
5AC 020/025 CR
UNIT INSTALLATION
!!
!!
!CAUTION
• Improper handling of unit during installation could result in leaks, electrical shock or unit malfunction.
• Contact your dealer for reinstallation or dismantling of unit.
• Do not introduce foreign objects such as fingers, sticks etc. into the air inlet and air outlet.
• Do not climb or place objects on top of mini chiller.
50 50
100
Figure 4: For floor installation
Note: All units are in mm unless specified.
• Unit subjects to floor installation must be placed on a concrete slab. The slab must have thickness of 100mm and 50mm
wider and longer than the footprint of the unit (Figure 4). Place the concrete slab a distant from building to prevent
vibration and noise.
• Inthe caseofheatpump operationwithan outdoortemperaturebelow 0°C, theunitmust beinstalledat least300mmabove
ground level. This is necessary to prevent ice from accumulating on the frame and to permit proper operation in the event
of heavy snowfalls.
• The unit must be leveled on both axes. (Tolerance is less than 2mm per meter.)

1-4
English
PHYSICALDATA
Table A-1 : R410A - Heatpump
Model 5AC020CR 5AC025CR
Nominal cooling capacity kW 4.98 6.15
Nominal heating capacity kW 6.30 7.320
Operating Weight kg 115.50 122.50
Refrigerant charge R410A kg 1.20 1.725
Compressor 1 Rotary comp
Control system LCD Electronic Control
Refrigerant - water heat exchanger Brazed Plate Heat Exchanger
Water connections (BSP) inches 1 1
Maximum water pressure kPa 1000 1000
Hydronic circuit
Pump High Head Circulator
Available pressure (Cooling / Heating) kPa 87/68 163/93
Water inlet connection (BSPT) inches 1 1
Water outlet connection (BSPT) inches 1 1
Drain tap coupling (BSPT) inches 1/2 1/2
Closed expansion tank water volume litre 2 2
Refrigerant - air heat exchanger
Tube diameter mm 9.52 9.52
No. of rows 1 2
Tubes/row 30 30
Fin spacing mm 1.27 1.59
O/D Fan
Diameter inches 18 18
No. of blades 5 5
Air flow (high speed) m3/min 62.3 62.3
Fan speed (high speed) r/min 910 920
Note: For cooling nominal values are based on 12°C / 7°C entering / leaving evaporator water temperature, 35°C air ambient temperature.
For heating nominal values are based on 40°C / 45°C entering / leaving evaporator water temperature, 7°C/6°C (DB/WB) air ambient temperature.