Daikin EWAA011DAV3P - Page 221

17 | Technical data
Installer reference guide
221
EWAA011~016DA + EWYA009~016DA
Packaged air-cooled water chillers
and packaged air to water heat pumps
4P620242-1 – 2020.06
English Translation
PCB
(4) Legend (4) Legend
*: Optional; #: Field supply
A1P Main PCB
A2P * ON/OFF thermostat (PC=power circuit)
A3P * Heat pump convector
A4P * Digital I/O PCB
A8P * Demand PCB
A11P MMI (=standalone user interface
delivered as accessory) – Main PCB
A14P * PCB of the dedicated Human Comfort
Interface (BRC1HHDA used as room
thermostat)
A15P * Receiver PCB (wireless ON/OFF
thermostat)
CN* (A4P) * Connector
DS1 (A8P) * DIP switch
E*P (A9P) Indication LED
F1B # Overcurrent fuse backup heater
F2B # Overcurrent fuse booster heater
F1U, F2U (A4P) Fuse 5A 250V for digital I/O PCB
K1A, K2A * High voltage Smart Grid relay
K1M Safety contactor backup heater
K3M * Contactor booster heater
K*R (A4P) Relay on PCB
M2P # Domestic hot water pump
M2S # 2-way valve for cooling mode
M3S * 3-way valve for floorheating / domestic
hot water
M4S * Bypass valve kit (for external backup
heater kit)
PC (A15P) * Power circuit
PHC1 (A4P) * Optocoupler input circuit
Q2L * Thermal protector booster heater
Q4L # Safety thermostat
Q*DI # Earth leakage circuit breaker
R1H (A2P) * Humidity sensor
R1T (A2P) * Ambient sensor of the ON/OFF
thermostat