Setting Up The Domestic Hot Water Tank; System Layout - Integrated Dhw Tank - Daikin ERLA-DV17 Installer's Reference Manual

6.4 Setting up the domestic hot water tank

6.4.1 System layout – Integrated DHW tank
ERLA11~16D + EBVH16SU23D
Daikin Altherma 3 R F
4P655196-1A – 2022.05
NOTICE
▪
Make sure the bivalent hysteresis has enough differential to prevent frequent
changeover between indoor unit and auxiliary boiler.
▪
Because the outdoor temperature is measured by the outdoor unit air
thermistor, install the outdoor unit in the shadow so that it is NOT influenced or
turned ON/OFF by direct sunlight.
▪
Frequent changeover may cause corrosion of the auxiliary boiler. Contact the
manufacturer of the auxiliary boiler for more information.
Changeover to external heat source decided by an auxiliary contact
▪ Only possible in external room thermostat control AND one leaving water
temperature zone (see
▪ The auxiliary contact can be:
- An outdoor temperature thermostat
- An electricity tariff contact
- A manually operated contact
- ...
▪ Setup: Connect the following field wiring:
L
H
Indoor/Auto/Boiler
A
K1A
N
B Boiler thermostat input
TI
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
a
A Domestic hot water
a Cold water IN
b Hot water OUT
"6.2 Setting up the space heating/cooling
Com
Indoor
X2M
35 30
K1A
K2A
A
6 Application guidelines
|
system" [
B TI
X Y
K2A
b
Installer reference guide
4
34]).
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