Daikin EUWAC8FZW [18/26] Wiring diagram
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Daikin EUWAC8FZW [18/26] Wiring diagram

Daikin EUWAC8FZW [18/26] Wiring diagram
3
1
9
• Applied Systems • Chillers
19
• Chillers • R-407C • EUWAC-FZW
9 Wiring diagram
9 - 1 Wiring diagram
X1
Connector in terminal unit for digital inputs, analog inputs, analog outputs and
for power supply controller
X2 Connector for digital outputs in terminal unit
TR1 Transfo 230V -> 24V for supply of controllers
S12S # Main isolator switch
S11L # Contact that closes if the pump is working
S10L # Flow switch
S9S ∗ Switch for remote start/stop
S4PC Head pressure control pressure switch for fanspeed control
S4LP Low pressure switch
S1HP High pressure switch
R4T Outlet water temperature sensor
R3T Inlet water temperature sensor
R1P Reverse phase protector
Q11F Thermal protector fan
Q1D Discharge thermal protector
PE Main earth terminal
M1C Compressor motors
M11F Fan motor
KP ∗ Pump contactor
K2F Contactors for speedselection fanmotor (low/high)
K1F,K3F Contactor for fanmotor
K1A Auxiliary contactor for high pressure
K4S Overcurrent relay
K1M Compressor contactor
H3P ∗ Indication lamp operation compressor
H1P ∗ Indication lamp alarm
F9U ## Surge proof fuse
F8U Surge proof fuse
F7B Fuse for fanmotor
F5B,F9B Fuse for the control circuit/ secondary of TR1
F1U,F2U,F3U # Main fuses for the unit
E1H Crankcase heater
C1 Capacitor for fanmotor
A3P PCB: Fanspeedcontroller
A2P ∗∗ PCB: Address card
A1P PCB: Terminal unit
Output terminals for field wiring (max
2A/output)
EXAMPLE
NOTES
(1) d1 Terminal 1
(2) W Wire 2
(3) F Field wiring, to be in accordance with the local electrical regulations
(4) C Earth wiring
(5)
Option Wiring dependent on model
(6)
PCB-display
(7)
Outside switchbox
(8) If compressor rotates reversely, it may be damaged.
(9) OPTIONAL
M ZH = Glycol application chilled water temperature down to -5°C
M ZL = Glycol application chilled water temperature down to -10°C
M EKAC10B = Address card kit for BMS-connections
Alarm
Operation c2
Power supply
controller
12 13 14 15 16 17 18 19 20
Not standard included
Not poss. as option Poss. as option
Obligatory # ##
Not obligatory ∗∗∗
Option kit: EKAC10A
K1F (5HP only)
KF1 (8-10HP only)
K2F (8-10HP only)
K3F (8-10HP only)
To microchiller compact
Address card
Serial line to gateway

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