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Piping Diagram
Piping diagram for 2MXM50M2V1B9, 2AMXM50M3V1B
PED categories of equipment - High pressure switches: category IV; Compressor: category II; Other art 4§3 equipment.
NOTE:
When the high pressure switch is activated it must be reset manually by a qualified person.
Outdoor unit
Motor-operated valve
Heating
Cooling
Refrigerant flow
7.9CuT
7.9CuT
M
4.8CuT
4.8CuT
9.5CuT
7.
9CuT
Heat exchanger thermistor
Accumulator
Compressor
4-way valve
Discharge pipe thermistor
Propeller fan
ON: heating
Muffler
9.
5CuT
9.5CuT
9.5CuT
Branch pipe
Muffler
Gas stop valve
Muffler
Gas stop valve
9.5CuT
9.5CuT
Thermistor (gas)
Thermistor (liquid)
Thermistor (gas)
6.4CuT
6.4CuT
EV
A
EV
B
Motor-operated valve
9.5CuT
6.4CuT
Thermistor (liquid)
Liquid stop valve
Liquid stop valve
Branch pipe
Branch pipe
6.4CuT
6.4CuT
Fan motor
9.5CuT
Filter
Filter
9.5CuT
HPS2
HPS1
9.5CuT
Twin-branched muffler
Field piping
Room ·A·
Room ·B·
(9.5CuT)
(12.7CuT)
Gas
Liquid
Field piping
Room ·A·
(6.4CuT)
Room ·B·
(6.4CuT)
Heat exchanger
Outdoor air temperature thermistor
High pressure switch
Manual reset
Automatic reset
3PEN423316-2K.book Page 18 Monday, May 15, 2017 1:15 PM