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1
2
3
4
5
6
(5) In the case of 21S4a,21S4b (4-way switching valve)
About this 4-way valve
When not powered : The electricity runs between the oil separator exit and the heat exchanger and between the
gas ball valve (BV1) and the accumulator. This circulation is for cooling.
When powered
: The electricity runs between the oil separator and the gas ball valve, and between the heat
exchanger and the accumulator. This circulation is for heating.
Check the LED display and the intake and the discharge temperature for the 4-way valve to check whether the
valve has no faults and the electricity runs between where and where.
Do not touch the pipe when checking the temperature, as the pipe on the oil separator side will be hot.
✻
Do not give an impact from outside, as the outer hull will be deformed leading to the malfunction of the inner
valve.
✻
21S4b is P450~P650 only
Solenoid valve
block 1
Check valve block 2
Solenoid valve block 2
Check valve block 1
Orifice
CV3a
SV4a
CV7b
BV2
ST1
BV1
CV8a
CV10a
CV9a
CV5a
CV4a
CV2a
CV6a
CV7a
TH6
TH7
TH5
SV4b
SV4c
SV4d
SV5a
SV5b
CV2b
CV5b
CV4b
CV6b
Drier
ST14
HEXb1
HEXf1
HEXf2
HEXf3
ST15
ST16
ST17
ST18
ST19
HEXb2
HEXf4
1
2
3
4
5
6
7
8
9
0
Cap
Plunger
Refrigerant circuit figure (P450-P650types)
Solenoid valve block 1
Solenoid valve block 2
Pin-face tool
Pin-face tool
Tightening torque : 150 N·m
Содержание PURY-P200
Страница 49: ... 46 Heat exchanger Fan guard Heat exchanger Fan guard P400 type Front view of the unit Rear view of the unit ...
Страница 57: ... 54 CNVDC DC bus voltage input 1 3 LED1 LED2 SW2 CNTR IPM back CNN Fan motor output Fuse CNRS2 3 FAN board ...
Страница 64: ... 61 Relay board RELAY 4 board Relay board RELAY 10 board ...