ERS ECH Series - Page 79

Fig.8-18 ECH090N piping diagram
8.4.3 diagram of ECH090N
Table 8-3
5
3
SV8A SV8B
SV4
SV6
SV5
4
1
2
7
8
6
9
10
11
37
39
13
14
15
16
42
18
19
T3
T4
Tz
20
EXVA
25
T6A
21
23
22
EXVC
T6B
24
26
27
EXVB
28
29
30
Taf1
Taf2
Twi
Two
inlet
outlet
32
33
34
31
35
36
38
41
40
12
17
1 Compressor1 2 Compressor2
3
CCHA (Crankcase heater A)
4
CCHB (Crankcase heater B)
5 Switch_TpA (Discharge temperature control switch A) 6 Switch_TpB ( Discharge temperature control switch B)
7 Tp1 (DC inverter compressor 1 discharge temperature) 8 Tp2 (DC inverter compressor 2 discharge temperature)
9
PRO-H (High pressure switch)
10
Oil seperator
11 4-way-valve 12 FAN1
13 FAN2 14 FAN3
15 Condenser 16 Filter
17 TZ (coil final outlet temperature) 18 T3 (coiloutlet temperature)
19 T4 (Outdoor ambient temperature) 20 EXVA (System electronic expansion valve 1)
21
T6B
（Refrigerant outlet temperature of EVI plate heat
exchanger）
22
T
6A
（Refrigerant inlet temperature of EVI plate
h
eat exchanger）
23
economizer 24 EXVC （EVI electronic expansion valve）
25
SV5 （Multifunctional solenoid valve） 26 Unit for cooling electronic control board
27
SV6 (Liquid side bypass solenoid valve)
28
EXVB (System electronic expansion valve 2)
29 Filter 30 High pressure tank
31
Antifreeze heater of plate heat exchanger
32
Taf1 (Water side antifreeze temperature)
33 Taf2 (Water side antifreeze temperature) 34 Plate heat exchanger
35
Two (Unit water outlet temperature)
36
Twi (Unit water inlet temperature)
37
System pressure sensor
38
PRO-L (Low pressure switch)
39
Th (System suction temperature)
40
SV4 (Fast oil return solenoid valve)
41 Capillary 42 Filter
L
egend
24
V.2