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Application guidelines
Installer reference guide
50
ERGA04~08EA + EHBH/X04+08EF
Daikin Altherma 3 R W
4P629085-1B – 2021.11
▪
Setup: Connect the following field wiring:
L
N
H
Com
A
K2A
K1A
X2M
BTI
K2A
K1A
Indoor/Auto/Boiler
35 30
X Y
Indoor
B
TI
Boiler thermostat input
A
Auxiliary contact (normally closed)
H
Heating demand room thermostat (optional)
K1A
Auxiliary relay for activation of indoor unit (field supply)
K2A
Auxiliary relay for activation of boiler (field supply)
Indoor
Indoor unit
Auto
Automatic
Boiler
Boiler
6.4 Setting up the domestic hot water tank
6.4.1 System layout – Standalone DHW tank
M
b
c
a
d
A
Domestic hot water
a
Cold water IN
b
Hot water OUT
6.4.2 Selecting the volume and desired temperature for the DHW tank
People experience water as hot when its temperature is 40°C. Therefore, the DHW
consumption is always expressed as equivalent hot water volume at 40°C.
However, you can set the DHW tank temperature at a higher temperature
(example: 53°C), which is then mixed with cold water (example: 15°C).
Selecting the volume and desired temperature for the DHW tank consists of:
1
Determining the DHW consumption (equivalent hot water volume at 40°C).
2
Determining the volume and desired temperature for the DHW tank.
Summary of Contents for Altherma 3 R W
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