Refrigerant and Hydraulic Circuits
Fig. 13.1 - Refrigerant circuit A version Single circuit Single SCROLL compressor TXV
SUPPLY LIMIT SUPPLY LIMIT
CONDENSING UNIT
ONLY WITH REHEATING COIL OPTION
14
MC 2
1 3
6
10 15
16
11
FG
5
6
6 7
8 9
12
4 4
13 13
17
12
6
6
18 6
6
18
POS. DESCRIPTION
1 Compressor
2 Crankcase heater 3 High pressure switch (HP) 4 Air cooled condenser 5 Liquid receiver 6 Access valve 5/16 7 Safety valve 8 Filter dryer 9 Sight glass
POS. DESCRIPTION
10 Thermostatic expansion valve 11 Shutoff solenoid valve 12 Check valve
13 Shutoff valve
14 Reheating coil (optional) 15 Evaporator
16 Low pressure transducer
17 Reheating solenoid valve (optional)
18 Access valve 1/4
Fig. 13.2 - Refrigerant circuit A version Single circuit Single SCROLL compressor EEV
SUPPLY LIMIT SUPPLY LIMIT
CONDENSING UNIT
ONLY WITH REHEATING COIL OPTION
14
MC
2
1 3
6
10 15
16
FG
5
6 6
7
8 9
12
4 4
13 13
17
12
6
6
18 11
T 6
6
18
POS. DESCRIPTION
1 Compressor
2 Crankcase heater 3 High pressure switch (HP) 4 Air cooled condenser 5 Liquid receiver 6 Access valve 5/16 7 Safety valve 8 Filter dryer 9 Sight glass
POS. DESCRIPTION
10 Electronic expansion valve (EEV) 11 Temperature sensor for EEV 12 Check valve
13 Shutoff valve
14 Reheating coil (optional) 15 Evaporator
16 Low pressure transducer EEV
17 Reheating solenoid valve (optional)
18 Access valve 1/4
Fig. 13.3 - Refrigerant circuit A version Single circuit Single DIGITAL SCROLL compressor TXV
SUPPLY LIMIT SUPPLY LIMIT
CONDENSING UNIT
ONLY WITH REHEATING COIL OPTION
14
MC 2
1
3
6
10 15
16
11
FG
5
6
6 7
8 9
12
4 4
13 13
17
12
6
6 18
19 20
T 6
6
DIGITAL SCROLL COMPR.
POS. DESCRIPTION
1 Compressor
2 Crankcase heater 3 High pressure switch (HP) 4 Air cooled condenser 5 Liquid receiver 6 Access valve 5/16 7 Safety valve 8 Filter dryer 9 Sight glass
10 Thermostatic expansion valve
POS. DESCRIPTION
11 Shutoff solenoid valve 12 Check valve
13 Shutoff valve
14 Reheating coil (optional) 15 Evaporator
16 Low pressure transducer
17 Reheating solenoid valve (optional) 18 High pressure transducer
19 Access valve 1/4
20 NTC Temperature sensor for DIGITAL SCROLL
compressor
Fig. 13.4 - Refrigerant circuit A version Single circuit Single DIGITAL SCROLL compressor EEV
SUPPLY LIMIT SUPPLY LIMIT
CONDENSING UNIT
ONLY WITH REHEATING COIL OPTION
14
MC
2
1
3
6
10 15
16
FG
5
6
6 7
8 9
12
4 4
13 13
17
12
6
6 18
19 11
T
20 T 6
6
DIGITAL SCROLL COMPR.
POS. DESCRIPTION
1 Compressor
2 Crankcase heater 3 High pressure switch (HP) 4 Air cooled condenser 5 Liquid receiver 6 Access valve 5/16 7 Safety valve 8 Filter dryer 9 Sight glass
10 Electronic expansion valve (EEV)
POS. DESCRIPTION
11 Temperature sensor for EEV 12 Check valve
13 Shutoff valve
14 Reheating coil (optional) 15 Evaporator
16 Low pressure transducer EEV 17 Reheating solenoid valve (optional) 18 High pressure transducer
19 Access valve 1/4
20 NTC Temperature sensor for DIGITAL SCROLL
compressor
Fig. 13.5 - Refrigerant circuit A version Single circuit Tandem SCROLL compressors EEV
SUPPLY LIMIT SUPPLY LIMIT
CONDENSING UNIT
ONLY WITH REHEATING COIL OPTION
14
3
6
10 15
16
FG
5
6
6 7
8 9
12
4 4
13 13
17
12
6
6
MC MC
2 TANDEM
2
1 1
18 11
T
19 6
6
SCROLL COMPR.
SCROLL COMPR.
POS. DESCRIPTION
1 Compressor
2 Crankcase heater 3 High pressure switch (HP) 4 Air cooled condenser 5 Liquid receiver 6 Access valve 5/16 7 Safety valve 8 Filter dryer 9 Sight glass
10 Electronic expansion valve (EEV)
POS. DESCRIPTION
11 Temperature sensor for EEV 12 Check valve
13 Shutoff valve
14 Reheating coil (optional) 15 Evaporator
16 Low pressure transducer EEV 17 Reheating solenoid valve (optional) 18 Access valve 1/4
19 High pressure transducer
Fig. 13.6 - Refrigerant circuit A version Single circuit Tandem DIGITAL SCROLL compressors EEV
SUPPLY LIMIT SUPPLY LIMIT
CONDENSING UNIT
ONLY WITH REHEATING COIL OPTION
14
3
6
10 15
16
FG
5
6
6 7
8 9
12
4 4
13 13
17
12
6
6
MC MC
2 TANDEM
COMP. 2 COMP. 1
2
1 1
18
19 11
T
20 T T 20
COMP. 1 COMP. 2 SCROLL SCROLL
SCROLL PX059
PX051 PX057
SCROLL PX047
6
6
DIGITAL SCROLL DIGITAL SCROLL
DIGITAL SCROLL DIGITAL SCROLL (FOR PX057-059) (FOR PX047-051)
POS. DESCRIPTION
1 Compressor
2 Crankcase heater 3 High pressure switch (HP) 4 Air cooled condenser 5 Liquid receiver 6 Access valve 5/16 7 Safety valve 8 Filter dryer 9 Sight glass
10 Electronic expansion valve (EEV)
POS. DESCRIPTION
11 Temperature sensor for EEV 12 Check valve
13 Shutoff valve
14 Reheating coil (optional) 15 Evaporator
16 Low pressure transducer EEV 17 Reheating solenoid valve (optional) 18 High pressure transducer
19 Access valve 1/4
20 NTC Temperature sensor for DIGITAL SCROLL
compressor
Fig. 13.7 - Refrigerant circuit A version Dual circuits Single SCROLL compressors TXV
SUPPLY LIMIT SUPPLY LIMIT
CONDENSING UNIT CONDENSING UNIT
ONLY WITH REHEATING COIL OPTION
MC 2
1
3 6
10 14 15
16
11
FG
5 6
18
7
8 9
12
4 4 13 13
6 MC
2
1 3
6
10 15
16
11
FG
5
6
6 7
8 9
12
4 4
13 13
17
12
6 6
6
6 18
CIRC. 2 CIRC. 1
18 6
6
18
POS. DESCRIPTION
1 Compressor
2 Crankcase heater 3 High pressure switch (HP) 4 Air cooled condenser 5 Liquid receiver 6 Access valve 5/16 7 Safety valve 8 Filter dryer 9 Sight glass
POS. DESCRIPTION
10 Thermostatic expansion valve 11 Shutoff solenoid valve 12 Check valve
13 Shutoff valve
14 Reheating coil (optional) 15 Evaporator
16 Low pressure transducer
17 Reheating solenoid valve (optional)
18 Access valve 1/4
Fig. 13.8 - Refrigerant circuit A version Dual circuits Single SCROLL compressors EEV
SUPPLY LIMIT SUPPLY LIMIT
CONDENSING UNIT CONDENSING UNIT
ONLY WITH REHEATING COIL OPTION
MC 2
1
3 6
6
10 15 14
16
FG
5 6
6 7
8 9
12
4 4 13 13
MC
2
1 3
6 6
10 15
16
FG
5
6
6 7
8 9
12
4 4
13 13
17
12
6 6
18 18
CIRC. 2 CIRC. 1
11 11
T T
6
6
18 18
POS. DESCRIPTION
1 Compressor
2 Crankcase heater 3 High pressure switch (HP) 4 Air cooled condenser 5 Liquid receiver 6 Access valve 5/16 7 Safety valve 8 Filter dryer 9 Sight glass
POS. DESCRIPTION
10 Electronic expansion valve (EEV) 11 Temperature sensor for EEV 12 Check valve
13 Shutoff valve
14 Reheating coil (optional) 15 Evaporator
16 Low pressure transducer EEV
17 Reheating solenoid valve (optional)
18 Access valve 1/4
Fig. 13.9 - Refrigerant circuit A version Dual circuits Single SCROLL+DIGITAL SCROLL compressors TXV
SUPPLY LIMIT
CONDENSING UNIT CONDENSING UNIT
ONLY WITH REHEATING COIL OPTION
MC 2
1
3 6
10 14 15
16
11
FG
5 6
6 7
8 9
12
4 4 13 13
MC 2
1 3
6
10 15
16
11
FG
5
6
6 7
8 9
12
4 4
13 13
17
12
18 6
6 6
19
6
CIRC. 2 CIRC. 1
20 19
T 21 6
19 6
SCROLL COMPR.
DIGITAL SCROLL COMPR.
POS. DESCRIPTION
1 Compressor
2 Crankcase heater 3 High pressure switch (HP) 4 Air cooled condenser 5 Liquid receiver 6 Access valve 5/16 7 Safety valve 8 Filter dryer 9 Sight glass
10 Thermostatic expansion valve 11 Shutoff solenoid valve
POS. DESCRIPTION
12 Check valve 13 Shutoff valve
14 Reheating coil (optional) 15 Evaporator
16 Low pressure transducer
17 Reheating solenoid valve (optional) 18 High pressure transducer
19 Access valve 1/4
20 Check valve (only for PX044054)
21 NTC Temperature sensor for DIGITAL SCROLL
compressor
Fig. 13.10 - Refrigerant circuit A version Dual circuits Single SCROLL+DIGITAL SCROLL compressors EEV
SUPPLY LIMIT SUPPLY LIMIT
CONDENSING UNIT CONDENSING UNIT
ONLY WITH REHEATING COIL OPTION
MC 2
1
3 10
15 14
16
FG
5 7
8 9
12
4 4 13 13
MC 2
1 3
10 15
16
FG
5 7
8 9
12
4 4
13 13
17
12
18 6
6
6 6
6
6 6
6 6
19
6
20 11 11
T T
19
T 21
CIRC. 2 CIRC. 1
6
6
19
SCROLL COMPR.
DIGITAL SCROLL COMPR.
POS. DESCRIPTION
1 Compressor
2 Crankcase heater 3 High pressure switch (HP) 4 Air cooled condenser 5 Liquid receiver 6 Access valve 5/16 7 Safety valve 8 Filter dryer 9 Sight glass
10 Electronic expansion valve (EEV) 11 Temperature sensor for EEV
POS. DESCRIPTION
12 Check valve 13 Shutoff valve
14 Reheating coil (optional) 15 Evaporator
16 Low pressure transducer
17 Reheating solenoid valve (optional) 18 High pressure transducer
19 Access valve 1/4
20 Check valve (only for PX044054)
21 NTC Temperature sensor for DIGITAL SCROLL
compressor
Fig. 13.11 - Refrigerant circuit A version Dual circuits Tandem SCROLL compressors EEV
SUPPLY LIMIT SUPPLY LIMIT
CONDENSING UNIT CONDENSING UNIT
ONLY WITH REHEATING COIL OPTION
14 15
12
4 4 10
15
FG
5 7
8 9
12
4
13 13
17
12
MC
2
1 MC
2
1 TANDEM
10 15
FG
5 7
8 9
13 13
MC
2
MC
2
1 TANDEM
6
6 6
6 6
6
1 3 16
18 18
6 6
3 16
6 6
CIRC. 2 CIRC. 1
11 11 T T
19 19
6
6
SCROLL COMPR. SCROLL COMPR. SCROLL COMPR. SCROLL COMPR.
POS. DESCRIPTION
1 Compressor
2 Crankcase heater 3 High pressure switch (HP) 4 Air cooled condenser 5 Liquid receiver 6 Access valve 5/16 7 Safety valve 8 Filter dryer 9 Sight glass
10 Electronic expansion valve (EEV)
POS. DESCRIPTION
11 Temperature sensor for EEV 12 Check valve
13 Shutoff valve
14 Reheating coil (optional) 15 Evaporator
16 Low pressure transducer
17 Reheating solenoid valve (optional) 18 Access valve 1/4
19 High pressure transducer
Fig. 13.12 - Refrigerant circuit A version Dual circuits Tandem DIGITAL SCROLL compressors EEV
SUPPLY LIMIT SUPPLY LIMIT
CONDENSING UNIT CONDENSING UNIT
ONLY WITH REHEATING COIL OPTION
15 14
12
4 10
15
FG
5 7
8 9
12
4
13 13
17
12
MC
2
1 MC
2
1 TANDEM
COMP. 2
COMP. 1
10 15
FG
5 7
8 9
13 13
MC 2
MC 2
1 TANDEM
COMP. 3
19
6 6
6 6
6
1
3 16
18
18
6 6
3 16
6 6
CIRC. 2 CIRC. 1
11 11
T T
6 19
20 T T 20 20 T
20 T
COMP. 4
(FOR PX082
094104) (FOR PX120)
COMP. 1 COMP. 2
SCROLL PX082 PX094 PX104
COMP. 3 COMP. 4
SCROLL
SCROLL
PX120 SCROLL
SCROLL SCROLL
SCROLL SCROLL
6
6
DIGITAL SCROLL
DIGITAL SCROLL DIGITAL SCROLL DIGITAL SCROLL
DIGITAL SCROLL
DIGITAL SCROLL DIGITAL SCROLL DIGITAL SCROLL
(FOR PX082
094104) (FOR PX120)
POS. DESCRIPTION
1 Compressor
2 Crankcase heater 3 High pressure switch (HP) 4 Air cooled condenser 5 Liquid receiver 6 Access valve 5/16 7 Safety valve 8 Filter dryer 9 Sight glass
10 Electronic expansion valve (EEV)
POS. DESCRIPTION
11 Temperature sensor for EEV 12 Check valve
13 Shutoff valve
14 Reheating coil (optional) 15 Evaporator
16 Low pressure transducer
17 Reheating solenoid valve (optional) 18 High pressure transducer
19 Access valve 1/4
20 NTC Temperature sensor for DIGITAL SCROLL
compressor
Fig. 13.13 - Refrigerant circuit W version - Single circuit - Single SCROLL compressor - TXV
ONLY WITH REHEATING COIL OPTION
FG MC
2
1 3
5
6 6 6
6 7
8 9 10
14 15
16
11
4 4
18
A
B AB 6
19 17
12
12
20
18
A B
AB
21 OPTION 2-WAY VALVE
OPTION 3-WAY VALVE
WATER INLET WATER OUTLET 6
22 6
POS. DESCRIPTION
1 Compressor
2 Crankcase heater 3 High pressure switch (HP) 4 Water cooled condenser 5 Liquid receiver
6 Access valve 5/16 7 Safety valve 8 Filter dryer 9 Sight glass
10 Thermostatic expansion valve 11 Shut-off solenoid valve
POS. DESCRIPTION
12 Check valve
14 Reheating coil (optional) 15 Evaporator
16 Low pressure transducer
17 Reheating solenoid valve (optional) 18 Condensing regulation water valve 19 Pressure transducer condensing regulation 20 Check valve 10 bar (145 psi)
21 Blind disk - only with optional 2-way valve
22 Access valve 1/4
Fig. 13.14 - Refrigerant circuit W version - Single circuit - Single SCROLL compressor - EEV
ONLY WITH REHEATING COIL OPTION
FG MC
2
1
3
5
6 6 6
6 7
8 9 10
14 15
16
4 4
18
A
B AB 6
19 17
12
12
20
18
A B
AB
21
11 T
OPTION 2-WAY VALVE
OPTION 3-WAY VALVE
WATER INLET WATER OUTLET 6
6
22
POS. DESCRIPTION
1 Compressor
2 Crankcase heater 3 High pressure switch (HP) 4 Water cooled condenser 5 Liquid receiver
6 Access valve 5/16 7 Safety valve 8 Filter dryer 9 Sight glass
10 Electronic expansion valve (EEV) 11 Temperature sensor for EEV
POS. DESCRIPTION
12 Check valve
14 Reheating coil (optional) 15 Evaporator
16 Low pressure transducer
17 Reheating solenoid valve (optional) 18 Condensing regulation water valve 19 Pressure transducer condensing regulation 20 Check valve 10 bar (145 psi)
21 Blind disk - only with optional 2-way valve
22 Access valve 1/4
Fig. 13.15 - Refrigerant circuit W version - Single circuit - Single DIGITAL SCROLL compressor - TXV
ONLY WITH REHEATING COIL OPTION
OPTION 2-WAY VALVE
WATER INLET WATER OUTLET FG
MC
2
1
3
5
6 6 6
6 7
8 9 10
14 15
16
11
4 4
18
A
B AB 6
19 17
12
12
20
18
A B
AB
21
22 T
OPTION 3-WAY VALVE 6
6
23
DIGITAL SCROLL COMPR.
POS. DESCRIPTION
1 Compressor
2 Crankcase heater 3 High pressure switch (HP) 4 Water cooled condenser 5 Liquid receiver
6 Access valve 5/16 7 Safety valve 8 Filter dryer 9 Sight glass
10 Thermostatic expansion valve 11 Shut-off solenoid valve
POS. DESCRIPTION
12 Check valve
14 Reheating coil (optional) 15 Evaporator
16 Low pressure transducer
17 Reheating solenoid valve (optional) 18 Condensing regulation water valve 19 Pressure transducer condensing regulation 20 Check valve 10 bar (145 psi)
21 Blind disk - only with optional 2-way valve 22 NTC Temperature sensor for DIGITAL SCROLL com
pressor
23 Access valve 1/4
Fig. 13.16 - Refrigerant circuit W version - Single circuit - Single DIGITAL SCROLL compressor - EEV
ONLY WITH REHEATING COIL OPTION
OPTION 2-WAY VALVE
OPTION 3-WAY VALVE
WATER INLET WATER OUTLET FG
MC
2
1
3
5
6 6 6
6 7
8 9 10
14 15
16
4 4
18
A
B AB 6
19 17
12
12
20
18
A B
AB
21
11 T
22 T
6
6
23
DIGITAL SCROLL COMPR.
POS. DESCRIPTION
1 Compressor
2 Crankcase heater 3 High pressure switch (HP) 4 Water cooled condenser 5 Liquid receiver
6 Access valve 5/16 7 Safety valve 8 Filter dryer 9 Sight glass
10 Electronic expansion valve (EEV) 11 Temperature sensor for EEV
POS. DESCRIPTION
12 Check valve
14 Reheating coil (optional) 15 Evaporator
16 Low pressure transducer
17 Reheating solenoid valve (optional) 18 Condensing regulation water valve 19 Pressure transducer condensing regulation 20 Check valve 10 bar (145 psi)
21 Blind disk - only with optional 2-way valve 22 NTC Temperature sensor for DIGITAL SCROLL com
pressor
23 Access valve 1/4
Fig. 13.17 - Refrigerant circuit W version - Single circuit - Tandem SCROLL compressors - EEV
ONLY WITH REHEATING COIL OPTION
OPTION 2-WAY VALVE
OPTION 3-WAY VALVE
WATER INLET WATER OUTLET FG
3
5
6 6 6
6 7
8 9
14 15
16
4 4
18
A
B AB 6
19 17
12
10 MC
2
1
MC
2
1 TANDEM
12
20
18
A B
AB
21
11 T 6
6
22 SCROLL
COMPR.
SCROLL COMPR.
POS. DESCRIPTION
1 Compressor
2 Crankcase heater 3 High pressure switch (HP) 4 Water cooled condenser 5 Liquid receiver
6 Access valve 5/16 7 Safety valve 8 Filter dryer 9 Sight glass
10 Electronic expansion valve (EEV) 11 Temperature sensor for EEV
POS. DESCRIPTION
12 Check valve
14 Reheating coil (optional) 15 Evaporator
16 Low pressure transducer
17 Reheating solenoid valve (optional) 18 Condensing regulation water valve 19 Pressure transducer condensing regulation 20 Check valve 10 bar (145 psi)
21 Blind disk - only with optional 2-way valve
22 Access valve 1/4
Fig. 13.18 - Refrigerant circuit W version - Single circuit - Tandem DIGITAL SCROLL compressors - EEV
ONLY WITH REHEATING COIL OPTION
OPTION 2-WAY VALVE
OPTION 3-WAY VALVE
WATER INLET WATER OUTLET FG
3
5
6 6 6
6 7
8 9
14 16 15
4 4
18
A B
AB 6
19 17
12
10 MC
2
1
MC
2
1 TANDEM
12
20
18
A B
AB
21
11 T
22 T 22
T
COMP. 1 COMP. 2
COMP. 1 COMP. 2
SCROLL
SCROLL PX059
PX051 PX057
SCROLL PX047
6
6
23
SCROLL DIGITAL
SCROLL
DIGITAL SCROLL
DIGITAL SCROLL DIGITAL
SCROLL (FOR PX057-059) (FOR PX047-051)
POS. DESCRIPTION
1 Compressor
2 Crankcase heater 3 High pressure switch (HP) 4 Water cooled condenser 5 Liquid receiver
6 Access valve 5/16 7 Safety valve 8 Filter dryer 9 Sight glass
10 Electronic expansion valve (EEV) 11 Temperature sensor for EEV 12 Check valve
POS. DESCRIPTION
13 Pressure transducer for electronic expansion valve 14 Reheating coil (optional)
15 Evaporator
16 Low pressure transducer
17 Reheating solenoid valve (optional) 18 Condensing regulation water valve 19 Pressure transducer condensing regulation 20 Check valve 10 bar (145 psi)
21 Blind disk - only with optional 2-way valve 22 NTC Temperature sensor for DIGITAL SCROLL com
pressor
23 Access valve 1/4
Fig. 13.19 - Refrigerant circuit W version - Dual circuits - Single SCROLL compressors - TXV
ONLY WITH REHEATING COIL OPTION
OPTION 2-WAY VALVE
WATER INLET WATER OUTLET OPTION
3-WAY VALVE
MC
FG MC
2
1 2
1
3
5
6 6 6 6
6 7
8 9 10 10
14 15 15
16
11 11
4 4
18
A
B AB
FG
5 6
7
8 9
4 4 18
A
B AB 6
3 6
16
6
19 19
17
12
6 12
20 12
20
CIRC. 2 CIRC. 1
18
A B
AB
21
18
A B
AB
21 OPTION 2-WAY VALVE
OPTION 3-WAY VALVE 6
6
22 22
POS. DESCRIPTION
1 Compressor
2 Crankcase heater 3 High pressure switch (HP) 4 Water cooled condenser 5 Liquid receiver
6 Access valve 5/16 7 Safety valve 8 Filter dryer 9 Sight glass
10 Thermostatic expansion valve 11 Shut-off solenoid valve
POS. DESCRIPTION
12 Check valve
14 Reheating coil (optional) 15 Evaporator
16 Low pressure transducer
17 Reheating solenoid valve (optional) 18 Condensing regulation water valve 19 Pressure transducer condensing regulation 20 Check valve 10 bar (145 psi)
21 Blind disk - only with optional 2-way valve
22 Access valve 1/4
Fig. 13.20 - Refrigerant circuit W version - Dual circuits - Single SCROLL compressors - EEV
ONLY WITH REHEATING COIL OPTION
OPTION 2-WAY VALVE
OPTION 3-WAY VALVE
WATER INLET WATER OUTLET
MC
FG MC
2
1 2
1
3
5
6 6 6 6
6 7
8 9 10 10
15 14 15
16
4 4
18
A B
AB
FG
5 6
7
8 9
4 4 18
A B AB 6
3 6
16
6
19 19
17
12
12 20
12
20
6
CIRC. 2 CIRC. 1
18
A B
AB
21
18
A B
AB
21 11 11
T T
OPTION 3-WAY VALVE
OPTION 2-WAY VALVE 6
6
22 22
POS. DESCRIPTION
1 Compressor
2 Crankcase heater 3 High pressure switch (HP) 4 Water cooled condenser 5 Liquid receiver
6 Access valve 5/16 7 Safety valve 8 Filter dryer 9 Sight glass
10 Electronic expansion valve (EEV) 11 Temperature sensor for EEV
POS. DESCRIPTION
12 Check valve
14 Reheating coil (optional) 15 Evaporator
16 Low pressure transducer
17 Reheating solenoid valve (optional) 18 Condensing regulation water valve 19 Pressure transducer condensing regulation 20 Check valve 10 bar (145 psi)
21 Blind disk - only with optional 2-way valve
22 Access valve 1/4
Fig. 13.21 - Refrigerant circuit W version - Dual circuits - Single SCROLL+DIGITAL SCROLL compressors - TXV
ONLY WITH REHEATING COIL OPTION
OPTION 2-WAY VALVE
WATER INLET WATER OUTLET OPTION
3-WAY VALVE
OPTION 2-WAY VALVE OPTION
3-WAY VALVE
MC
FG MC
2
1 2
1
3
5
6 6 6 6
6 7
8 9 10 10
15 14 15
16
4 4
18
A
B AB
FG
5 6
7
8 9
4 4 18
A
B AB 6
3 6
16
6
19 17
12
6 10 10
11 11
19
12 20
12
20
CIRC. 2 CIRC. 1
18
A B
AB
21
18
A B
AB
21 22
T 23 6
6
24
24 DIGITAL
SCROLL COMPR.
SCROLL COMPR.
POS. DESCRIPTION
1 Compressor
2 Crankcase heater 3 High pressure switch (HP) 4 Water cooled condenser 5 Liquid receiver
6 Access valve 5/16 7 Safety valve 8 Filter dryer 9 Sight glass
10 Thermostatic expansion valve 11 Shut-off solenoid valve 12 Check valve
POS. DESCRIPTION
14 Reheating coil (optional) 15 Evaporator
16 Low pressure transducer
17 Reheating solenoid valve (optional) 18 Condensing regulation water valve 19 Pressure transducer condensing regulation 20 Check valve 10 bar (145 psi)
21 Blind disk - only with optional 2-way valve 22 Check valve for PX044-054
23 NTC Temperature sensor for DIGITAL SCROLL com
pressor
24 Access valve 1/4
Fig. 13.22 - Refrigerant circuit W version - Dual circuits - Single SCROLL+DIGITAL SCROLL compressors - EEV
ONLY WITH REHEATING COIL OPTION
OPTION 2-WAY VALVE
OPTION 3-WAY VALVE
WATER INLET WATER OUTLET
OPTION 3-WAY VALVE
OPTION 2-WAY VALVE MC
FG MC
2 1 2
1
3
5
6 6 6 6
6 7
8 9 10 10
14 15 15
16
4 4
18
A
B AB
FG
5 6
7
8 9
4 4 18
A
B AB 6
3 6
16
6
19 17
12
6 10 10
19
12 20
12
20
CIRC. 2 CIRC. 1
18
A B
AB
21
18
A B
AB
21 22
11 11 T T
T 23 6
6
24
24 SCROLL
COMPR.
DIGITAL SCROLL COMPR.
POS. DESCRIPTION
1 Compressor
2 Crankcase heater 3 High pressure switch (HP) 4 Water cooled condenser 5 Liquid receiver
6 Access valve 5/16 7 Safety valve 8 Filter dryer 9 Sight glass
10 Electronic expansion valve (EEV) 11 Temperature sensor for EEV 12 Check valve
POS. DESCRIPTION
14 Reheating coil (optional) 15 Evaporator
16 Low pressure transducer
17 Reheating solenoid valve (optional) 18 Condensing regulation water valve 19 Pressure transducer condensing regulation 20 Check valve 10 bar (145 psi)
21 Blind disk - only with optional 2-way valve 22 Check valve for PX044-054
23 NTC Temperature sensor for DIGITAL SCROLL com
pressor
24 Access valve 1/4
Fig. 13.23 - Refrigerant circuit W version - Dual circuits - Tandem SCROLL compressors - EEV
ONLY WITH REHEATING COIL OPTION
OPTION 2-WAY VALVE
WATER INLET WATER OUTLET OPTION
3-WAY VALVE
OPTION 2-WAY VALVE
OPTION 3-WAY VALVE FG
3
5
6 6 6 6
6 7
8 9
15 14 15
16
4 4
18
A
B AB
FG
5 6
7
8 9
4 4 18
A
B AB 6
6
16
6
19 19
17
12
6
10 10
MC
2
1
MC
2
1 TANDEM MC
2 1
MC
2
1 TANDEM
12 20
12
20
CIRC. 2 CIRC. 1
18
A B
AB
21
18
A B
AB
21 11 11
T T
3 6
6
22
22
SCROLL COMPR. SCROLL COMPR. SCROLL COMPR. SCROLL COMPR.
POS. DESCRIPTION
1 Compressor
2 Crankcase heater 3 High pressure switch (HP) 4 Water cooled condenser 5 Liquid receiver
6 Access valve 5/16 7 Safety valve 8 Filter dryer 9 Sight glass
10 Electronic expansion valve (EEV) 11 Temperature sensor for EEV
POS. DESCRIPTION
12 Check valve
14 Reheating coil (optional) 15 Evaporator
16 Low pressure transducer
17 Reheating solenoid valve (optional) 18 Condensing regulation water valve 19 Pressure transducer condensing regulation 20 Check valve 10 bar (145 psi)
21 Blind disk - only with optional 2-way valve
22 Access valve 1/4
Fig. 13.24 - Refrigerant circuit W version - Dual circuits - Tandem DIGITAL SCROLL compressors - EEV
ONLY WITH REHEATING COIL OPTION
OPTION 2-WAY VALVE
OPTION 3-WAY VALVE
WATER INLET WATER OUTLET
OPTION 3-WAY VALVE
OPTION 2-WAY VALVE FG
3
5
6 6 6 6
6 7
8 9
15 14 16 15
4
18
A
B AB
FG
5 6
7
8 9
4 18
A
B AB 6
3 6
16
6
19 19
17
12
6
10 10
MC 2
1
MC 2
1 TANDEM
COMP. 3
MC 2
1
MC 2
1 TANDEM
COMP. 2
12 20
12
20
CIRC. 2 CIRC. 1
18
A B
AB
21
18
A B
AB
21 11 11
T T
22 T
22
T 22 T
22 T
COMP. 1 COMP. 4
COMP. 1 COMP. 2
SCROLL PX082
PX094 PX104
COMP. 3 COMP. 4
SCROLL
SCROLL
PX120 SCROLL
SCROLL SCROLL
SCROLL SCROLL
6
6
23
23
DIGITAL SCROLL DIGITAL SCROLL DIGITAL SCROLL
DIGITAL SCROLL
DIGITAL SCROLL DIGITAL SCROLL DIGITAL SCROLL DIGITAL SCROLL (FOR PX082
094104) (FOR PX120)
(FOR PX082
094104) (FOR PX120)
POS. DESCRIPTION
1 Compressor
2 Crankcase heater 3 High pressure switch (HP) 4 Water cooled condenser 5 Liquid receiver
6 Access valve 5/16 7 Safety valve 8 Filter dryer 9 Sight glass
10 Electronic expansion valve (EEV) 11 Temperature sensor for EEV
POS. DESCRIPTION
12 Check valve
14 Reheating coil (optional) 15 Evaporator
16 Low pressure transducer
17 Reheating solenoid valve (optional) 18 Condensing regulation water valve 19 Pressure transducer condensing regulation 20 Check valve 10 bar (145 psi)
21 Blind disk - only with optional 2-way valve 22 NTC Temperature sensor for DIGITAL SCROLL com
pressor
23 Access valve 1/4
Fig. 13.25 - Refrigerant circuit F version - Single circuit - Single SCROLL compressor - TXV
ONLY WITH REHEATING COIL OPTION
FG MC
2
1
6 6
8 9 10
15
11
4 4
21 20
23
22
5 7
19 6
18
A B
AB 17
12
14
3 16 6
6
T 12
24
COOLING WATER INLET
COOLING WATER OUTLET 6
6
25
POS. DESCRIPTION
1 Compressor
2 Crankcase heater 3 High pressure switch (HP) 4 Water cooled condenser 5 Liquid receiver
6 Access valve 5/16 7 Safety valve 8 Filter dryer 9 Sight glass
10 Thermostatic expansion valve 11 Shut-off solenoid valve 12 Check valve
POS. DESCRIPTION
14 Reheating coil (optional) 15 Evaporator
16 Low pressure transducer
17 Reheating solenoid valve (optional) 18 Condensing regulation water valve 19 Pressure transducer condensing regulation 20 Chilled water coil
21 Chilled water 2-way valve 22 Manual bleed valve 23 Inlet water sensor
24 Check valve 10 bar (145 psi)
25 Access valve 1/4
Fig. 13.26 - Refrigerant circuit F version - Single circuit - Single SCROLL compressor - EEV
ONLY WITH REHEATING COIL OPTION
FG MC
2
1
6 6
8 9 10
15
4 4
21 20
23
22
5 7
19 6
18
A B
AB 17
12
14
3 16 6
6
T 12
24 11 T
COOLING WATER INLET
COOLING WATER OUTLET
6
6
25
POS. DESCRIPTION
1 Compressor
2 Crankcase heater 3 High pressure switch (HP) 4 Water cooled condenser 5 Liquid receiver
6 Access valve 5/16 7 Safety valve 8 Filter dryer 9 Sight glass
10 Electronic expansion valve (EEV) 11 Temperature sensor for EEV 12 Check valve
POS. DESCRIPTION
14 Reheating coil (optional) 15 Evaporator
16 Low pressure transducer
17 Reheating solenoid valve (optional) 18 Condensing regulation water valve 19 Pressure transducer condensing regulation 20 Chilled water coil
21 Chilled water 2-way valve 22 Manual bleed valve 23 Inlet water sensor
24 Check valve 10 bar (145 psi)
25 Access valve 1/4
Fig. 13.27 - Refrigerant circuit F version - Single circuit - Single DIGITAL SCROLL compressor - TXV
ONLY WITH REHEATING COIL OPTION
FG MC
2
1
6 6
8 9 10
15
11
4 4
21 20
23
22
5 7
19 6
18
A B
AB 17
12
14
3 16 6
6
T
12 24
25 T
COOLING WATER INLET
COOLING WATER OUTLET 6
6
26
DIGITAL SCROLL COMPR.
POS. DESCRIPTION
1 Compressor
2 Crankcase heater 3 High pressure switch (HP) 4 Water cooled condenser 5 Liquid receiver
6 Access valve 5/16 7 Safety valve 8 Filter dryer 9 Sight glass
10 Thermostatic expansion valve 11 Shut-off solenoid valve 12 Check valve
14 Reheating coil (optional)
POS. DESCRIPTION
15 Evaporator
16 Low pressure transducer
17 Reheating solenoid valve (optional) 18 Condensing regulation water valve 19 Pressure transducer condensing regulation 20 Chilled water coil
21 Chilled water 2-way valve 22 Manual bleed valve 23 Inlet water sensor
24 Check valve 10 bar (145 psi)
25 NTC Temperature sensor for DIGITAL SCROLL com
pressor
26 Access valve 1/4
Fig. 13.28 - Refrigerant circuit F version - Single circuit - Single DIGITAL SCROLL compressor - EEV
ONLY WITH REHEATING COIL OPTION
FG MC
2
1
6 6
8 9 10
15
4 4
21 20
23
22
5 7
19 6
18
A B
AB 17
12
14
3
16 6
6
T 12
24 11
T
25 T
COOLING WATER INLET
COOLING WATER OUTLET 6
6
26
DIGITAL SCROLL COMPR.
POS. DESCRIPTION
1 Compressor
2 Crankcase heater 3 High pressure switch (HP) 4 Water cooled condenser 5 Liquid receiver
6 Access valve 5/16 7 Safety valve 8 Filter dryer 9 Sight glass
10 Electronic expansion valve (EEV) 11 Temperature sensor for EEV 12 Check valve
14 Reheating coil (optional)
POS. DESCRIPTION
15 Evaporator
16 Low pressure transducer
17 Reheating solenoid valve (optional) 18 Condensing regulation water valve 19 Pressure transducer condensing regulation 20 Chilled water coil
21 Chilled water 2-way valve 22 Manual bleed valve 23 Inlet water sensor
24 Check valve 10 bar (145 psi)
25 NTC Temperature sensor for DIGITAL SCROLL com
pressor
26 Access valve 1/4
Fig. 13.29 - Refrigerant circuit F version - Single circuit - Tandem DIGITAL SCROLL compressors - EEV
ONLY WITH REHEATING COIL OPTION
FG
6 6
8 9 10
15
4 4
21 20
23
22
5 7
19 6
18
A B
AB 17
12
14
3 16 6
6
T MC
2
1
MC 2
1 TANDEM
12 24 11
T
T 25
COOLING WATER INLET
COOLING WATER OUTLET
6
6
26
DIGITAL SCROLL COMPR.
SCROLL COMPR.