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Technical data
Installer reference guide
260
EBLA09~16DA + EDLA09~16DA
Daikin Altherma 3 M
4P620241-1 – 2020.06
English
Translation
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
R1T (A14P)
* Ambient sensor of the dedicated
Human Comfort Interface (BRC1HHDA
used as room thermostat)
R2T (A2P)
* External sensor (floor or ambient)
Summary of Contents for ALTHERMA
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