Daikin EPRA16DAW1 Installer's Reference Manual page 184

9 | Configuration
Installer reference guide
184
Operation
# Code
[9.4.4] [4-03]
[9.4.4] [4-03]
[9.4.4] [4-03]
[9.4.4] [4-03]
9.4.4 [4-03]
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: Booster heater operation is NOT allowed
except for "Disinfection
"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: Booster heater operation is allowed when
required.
▪ 2: The booster heater is allowed outside the
operation range of the heat pump for domestic
hot water operation.
Booster heater operation is only allowed if:
- Ambient temperature is out of the operating
range: T <[5‑03] or T
a
The booster heater is only allowed to operate
when T <[5‑03] if space heating priority is
a
enabled ([5‑02]=1).
- Domestic hot water temperature is 2°C lower
than the heat pump OFF temperature.
If bivalent operation is enabled ([C‑02]=1) and
permission signal for auxiliary boiler is ON, the
booster heater will be restricted even when
T <[5‑03].
a
▪ 3: The booster heater is allowed when the heat
pump is NOT active in domestic hot water
operation.
Same as setting 1, but simultaneous heat pump
domestic hot water operation and booster
heater operation is not allowed.
EPRA14~18DAV3+W1 + ETBH/X16DA6V+9W
function" and
>35°C
a
Daikin Altherma 3 H HT W
4P587501-1A – 2020.01