Daikin Altherma 3 M Installer's Reference Manual page 192

11 | Configuration
Backup heater
Installer reference guide
192
DHW pump
# Code
[9.2.2] [D‑02]
See also:
▪ "DHW pump for instant hot
▪ "DHW pump for disinfection" [
▪ "DHW pump for tank
DHW pump schedule
Program a schedule for the DHW pump (only for field supplied domestic hot
water pump for secondary return).
Program a domestic hot water pump schedule to determine when to turn on and
off the pump.
When turned on, the pump runs and makes sure hot water is instantly available at
the tap. To save energy, only turn on the pump during periods of the day when
instant hot water is necessary.
Besides the type of backup heater, the voltage, configuration and capacity must be
set on the user interface.
The capacities for the different steps of the backup heater must be set for the
energy metering and/or power consumption feature to work properly. When
measuring the resistance value of each heater, you can set the exact heater
capacity and this will lead to more accurate energy data.
Backup heater type
▪ For models with integrated backup heater, this is fixed to 3V.
DHW pump:
▪ 0: No DHW pump: NOT installed
▪ 1: Instant hot water: Installed for instant
hot water when water is tapped. The user sets
the operation timing of the domestic hot water
pump using the schedule. Control of this pump
is possible with the user interface.
▪ 2 Disinfection: Installed for disinfection. It
runs when the disinfection function of the
domestic hot water tank is running. No further
settings are needed.
▪ 3 Circulation : Installed for tank preheating.
Necessary for systems without backup heater.
It runs when the domestic hot water tank is
being preheated. No further settings are
needed.
▪ 4 Circulation
Combination of 2 and 3. It runs when the
disinfection function of the domestic hot water
tank is running, or when the domestic hot
water tank is being preheated. No further
settings are needed.
4
water" [ 50]
4
51]
4
preheating" [ 52]
Description
and disinfection:
EBLA09~16DA + EDLA09~16DA
Daikin Altherma 3 M
4P620241-1 – 2020.06