ESIE16-02K
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Part 5. Appendix
5.3. Piping diagram
RA R32 Split & multi split M-Series
31/05/21
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Version 1.1
Page 119
5.3.2. Outdoor unit
5.3.2.1. 2MXM40M
Figure 5-42: Piping diagram - outdoor unit 2MXM40M
5.3.2.2. 3MXM68M, 3MXM68N(9)
Figure 5-43: Piping diagram - outdoor unit 3MXM68M, 3MXM68N(9)
Motor-operated valve
Field piping
Heating
Cooling
Refrigerant flow
Muffler with filter
7.0CuT
7.0CuT
M
4.8CuT
4.8CuT
9.5CuT
7.
9CuT
Heat exchanger thermistor
Accumulator
4-way valve
Heat exchanger
Discharge pipe thermistor
Propeller fan
ON: heating
Muffler
7.
9C
uT
Muffler
9.5CuT
9.5CuT
Branch pipe
9.5CuT
Muffler
Gas stop valve
Muffler
Gas stop valve
9.5CuT
9.5CuT
Thermistor (gas)
Thermistor (liquid)
Thermistor (gas)
Room A
Room B
(9.5CuT)
(9.5CuT)
Gas
6.4CuT
6.4CuT
EV
A
EV
B
Motor-operated valve
Muffler
6.4CuT
Muffler with filter
Muffler
9.5CuT
6.4CuT
Thermistor (liquid)
Liquid stop valve
Liquid stop valve
Branch pipe
Branch pipe
6.4CuT
6.4CuT
Fan motor
Compressor
Twin-branched muffler
Outdoor air temperature thermistor
Liquid
Field piping
Room A
(6.4CuT)
Room B
(6.4CuT)
9.5CuT
9.5C
uT
Filter
Filter
7.9CuT
7.9CuT
7.9CuT
7.9CuT
12.7CuT
M
12.7CuT
A
B
C
(12.7CuT)
(9.5CuT)
(12.7CuT)
12.7CuT
12.7CuT
12.7CuT
Field piping
Thermistor (gas)
Refnet header
12.7CuT
Gas stop valve
15
.9Cu
T
15.9
Cu
T
Muffler
Muffler
15.9CuT
15.9CuT
Accumulator
Compressor
9.5C
uT
Muffler
9.5CuT
12.7CuT
4-way valve
Heat exchanger
Propeller fan
Fan motor
7.9CuT
7.9CuT
7.9CuT
MV
MV
MV
A
B
C
Electronic expansion valve
6.4CuT
6.4CuT
6.4CuT
Filter
Room
Room
Room
Field piping
Liquid
Gas
A
B
C
(6.4CuT)
(6.4CuT)
(6.4CuT)
Room
Room
Room
9.5CuT
Liquid stop valve
9.5CuT
9.5CuT
9.5CuT
7.9CuT
Muffler with filter
Capillary tube
Distributor
Refrigerant flow
Refnet header
Accumulator
Discharge pipe thermistor
Thermistor (liquid)
Heating
Cooling
Refnet header
S1PH
S2PH
High pressure switch
Manual reset
Automatic reset
SV
Solenoid valve
9.5CuT
9.5CuT
6.4CuT
12.7CuT
Heat exchanger thermistor
Outdoor air temperature thermistor
15.9CuT