ESIE98–06A Wiring Layout
Part 1 – System Outline 1–33
3
1
4
5
1
*: only EUWY.
Block Connection
Wiring diagram
symbol
Description
J2
B1 R3T ambient temperature sensor
B2 R4T outlet water temperature sensor evaporator 1
B3 R5T outlet water temperature sensor evaporator 2
B4 R6T outlet water temperature sensor evaporator 3
B5 R7T evap./cond. inlet water temperature
J3
ID6 K6A contactor for defrost circuit 1
ID7 K7A contactor for defrost circuit 2
ID8 K8A contactor for defrost circuit 3
ID9 S8S (field wiring) switch for dual set point
ID10 S9S (field wiring) switch for remote start/stop
J4
ID1 K1A auxiliary relay for safety circuit 1
ID2 K2A auxiliary relay for safety circuit 2
ID3 K3A auxiliary relay for safety circuit 3
ID4 * S7S (field wiring) switch for remote cool/heat selection
ID5 S10L, S11L
(field wiring)
flow switch / pump contact
J5
C1-NO1 K1M compressor contactor circuit 1
C2-NO2 K2M compressor contactor circuit 2
J6
C3-NO3 K3M compressor contactor circuit 3
C4-NO4 S16T evaporating temperature thermostat circuit 1
C5-NO5 S17T evaporating temperature thermostat circuit 2
C12-NO12 S18T evaporating temperature thermostat circuit 3
J11 — — no usage
J17 G-GO — power supply controller
J21
ID11-ID11R K4A auxiliary relay for reverse phase protector
ID12-ID12R — —
J22
C9-NO9-NC9 K12A auxiliary relay for fan speed control Ry1
C10-NO10-NC10 K13A auxiliary relay for fan speed control Ry2
J24
C13-NO13 K5A cool/heat contactor
C6-NO6 KP (field wiring) pump contactor
C7-NO7 H1P (field wiring) alarm indication lamp
C8-NO8 H2P (field wiring) operation indication lamp
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