ESIE98–06A Wiring Layout
Part 1 – System Outline 1–40
Wiring diagram
EUWA15-20HCZ
switch for dual setpointS8S *
thermal protector fan 3, 4Q21F,Q22F
fan motors for compressor2M21F,M22F
connector for digital outputJ5,J6,J22,J24
connector for power supply controller
connector for analog inputJ1,J2
connector for digital inputJ3,J4,J21
compressor contactor circuit1,circuit2K1M,K2M
indication lamp alarmH1P *
automatic fuse for secondary of TR1F9B
main fuses for the unitF1U,F2U,F3U#
ON/OFF switch in emergency operationS22S *
emergency operation selectionS23B *
thermostat for inlet water controlS24T *
auxiliary relay for flowswitchK16A
auxiliary relay for compressorstartrequestK17A
guardtimer compressor1, compressor2K19A,K20A
indication of emergency operationH6P *
indication ON/OFF in emergency operationH7P *
automatic fuse for the primary of TR1 + control circuitF5B
interconnection connector switchbox 1,switchbox 2X1A/X1B,X2A/X2B
solenoid valve for injection line circuit1, circuit2Y1S,Y2S **
transfo 230V -> 24V for supply of controllersTR1
thermostat for evaporator heatertapeS25T **
thermostat for liquid injection circuit1, circuit2S19T,S20T **
evaporating temperature thermostat circuit1, circuit2S16T,S17T
main isolator switchS12S #
contact that closes if pump is workingS11L #
flowswitchS10L #
switch for remote start/stopS9S *
high pressure switch for circuit1, circuit2,S1HP,S2HP
sensor for ambient temperature measurementR3T
outlet water temperature sensorR4T,R5T
sensor for evaporator/condensor inlet water t%%d measurementR7T
reverse phase protectorR1P
thermal protector fan 1, 2Q11F,Q12F
discharge thermal protector circuit1, circuit2Q1D,Q2D
main earth terminal
compressor motors for compressor1, compressor2M1C,M2C
fan motors for compressor1M11F,M12F
pumpcontactorKP *
auxiliary relay for evaporator heatertapeK11A **
auxiliary relay for fanspeed controlK12A,K13A
contactor for fanmotor circuit1, circuit2K1F,K2F
auxiliary relay for safety circuit1, circuit2K1A,K2A
overcurrent relay circuit1, circuit2 K4S,K5S
indication lamp operation circuit1,circuit2H3P,H4P *
indication lamp general operationH2P *
automatic fuse for the fans circuit F7B
automatic fuse for the secondary of TR1F6B
fuse evaporator heatertapeF1EH #
evaporator heatertapeE4H,E5H,**
capacitors for fanmotorsC1,C2,C3,C4
crankcase heater circuit1,circuit2E1H,E2H
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