Daikin ETBH16E9W Installer's Reference Manual page 205

EPRA14~18D + ETBH/X16E
Daikin Altherma 3 H HT W
4P644736-1D – 2023.10
BSH eco timer
# Code
[9.4.3] [8-03]
Operation
# Code
[9.4.4] [4-03]
[9.4.4] [4-03]
[9.4.4] [4-03]
Description
Booster heater delay timer.
Start-up delay time for the booster heater when
domestic hot water mode is active.
▪ When domestic hot water mode is NOT active,
the delay time is 20 minutes.
▪ The delay time starts from booster heater ON
temperature.
▪ By adapting the booster heater delay time
versus the maximum running time, you can find
an optimal balance between the energy
efficiency and the heat up time.
▪ If the booster heater delay time is set too high,
it might take a long time before the domestic
hot water reaches its set temperature.
▪ The setting [8‑03] is only meaningful if setting
[4‑03]=1. Setting [4‑03]=0/2/3/4 limits the
booster heater automatically in relation to
heat pump operation time in domestic water
heating mode.
▪ Make sure that [8‑03] is always in relation with
the maximum running time [8‑01].
Range: 20~95 minutes
Description
Defines the operation permission of the booster
heater depending on ambient, domestic hot
water temperature or operation mode of heat
pump. This setting is only applicable in reheat
mode for applications with separate domestic hot
water tank. When setting [4‑03]=1/2/3/4, the
booster heater operation can still be restricted by
the booster heater allowance schedule.
▪ 0 Restricted: Booster heater operation is
NOT allowed except for "Disinfection function"
and "Powerful domestic water heating".
Only use this in case the heat pump capacity
can cover the heating requirements of the
house and domestic hot water during the
complete heating season.
The booster heater will not be allowed to
operate when T <[5‑03] and [5‑02]=1. The
a
domestic hot water temperature can be
maximum the heat pump OFF temperature.
▪ 1 Allowed: Booster heater operation is
allowed when required.
10 Configuration
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Installer reference guide
205