Emerson Liebert PEX - Appendix 1 Circuit Diagram

16 Appendix 1 Circuit Diagram
Appendix 1 Circuit Diagram
W
U
V
J11 RS232J5 OutTemp J10 Fan2StaJ7 Fan1Sta
J6 CompSta
02
Remark:
Black
Contactor 1
Olivine
Wiring terminal
block
Olivine
Shell connecting to
the earth
Air circuit breaker
Olivine
External power
Pressure sensor 2
Pressure sensor 1
Compressor
signal
Red
1. Connect the pressure sensor 1 only, when PEX
condenser is a single circuit.
2. Connect the pressure sensor 1 and 2 with the
copper pipe of PEX condenser, when PEX condenser
is a dual circuit.
3. When mounted vertically, the lower header
connects to pressure sensor 1 and the upper header
connects to pressure sensor 2.
4. Both external power and compressor signal are
wired in field.
5. The compressor signal cables should be in parallel
and then connected into the electrical control board,
when the indoor unit is a dual circuit.
Fan
Isolation switch
Black
Black
BlackBlack
Black Black
Black Black
BlackBlackBlack
Black Black Black
Black Black
Black Black
Black
Red Orange
Black Black
Orange
Orange
Red
Orange
L1
J9 3 2 1 J3 HP1 J4 HP2 J14 HP2
J15 HP1
04
04
L3 L2 L1 PE
03 03 03 L1 04 04
05
02 02 02 01 02
123456
8 9 10 11 12 13
7
14
10 10 10
01 0109
0807
06
06
06
1L1 3L2 A15L3 NO
NOA26T34T22T1
09
01010101
W1
V1
U1
TB
TB
PE
01
01
L3
L2 L1
NPE
Figure 1 Circuit diagram of the condenser with single fan
Liebert.PEX Condenser User Manual