Daikin EUWL KZW1 Series, Service Manual

Page: 58 / 140

Wiring Layout ESIE-0303
1–50 Part 1 – System Outline
3
1 1
4
5
Components The table below describes the components.
Connector
Wiring diagram
symbol
Description
X1A (L1, N, L3) Power supply L1, N, L3
X2A TR Pri. Transformer primary
X3A TR. Sec Transformer secondary
X4A TR Pri. Transformer primary
X5A TR. Sec Transformer secondary
X6A S1HP High pressure switch of circuit 1
X7A S2HP High pressure switch of circuit 2
X8A Q1D Discharge thermal protector of circuit 1
X9A Q2D Discharge thermal protector of circuit 2
X10A K4S (NC) Overcurrent relay of circuit 1
X11A K5S (NC) Overcurrent relay of circuit 2
X16A Y1S Liquid solenoid valve (only for RC unit)
X17A K1M Compressor contactor (coil) of circuit 1
NC contact of K1M
X18A Y2S Liquid solenoid valve (only for RC unit)
X19A K2M Compressor contactor (coil) of circuit 2
NC contact of K2M
X28A K6S (NC) Overcurrent relay of pump
X30A S10L Flow contactor
X50A X2 (C1/2, No1, No2) To A1P µchiller compact
X51A X2 (C3/4, No3, No4) To A1P µchiller compact (pump + reverse valve)
X52A K1M NO contact of K1M
X53A K2M NO contact of K2M
X55A (G, GO) Power supply to µchiller compact
X56A (N, L3) Power supply for evaporator heater tape
X60A R3T Evaporator inlet water temperature sensor
X61A R4T Evaporator outlet water temperature sensor
X62A R5T Cond. inlet water temperature sensor
X63A S4LP Low pressure switch circuit 1
X64A S5LP Low pressure switch circuit 2
X65A S10L Flow contact
X66A X66A No use (shortcut)
X70A X2 (C5, No5) To A1P (C5, No5)