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8 Configuration
Installer reference guide
53
ERLQ004~008CA + 26CB6W
Daikin Altherma – Low temperature split
4P449978-1B – 2018.07
#
Code
Description
[A.2.1.9]
[F-0D]
<< continuation
▪ 2 (Request)(default): Pump operation
based on request.
Example:
Using a
room thermostat creates thermo ON/
OFF condition. When there is no such
demand, the pump is OFF.
Remark:
Request is NOT available in leaving
water temperature control.
a
d
e
b
b
c
b
c
c
▪ a: Space heating control (user
interface)
▪ b: OFF
▪ c: On
▪ d: Heating demand (by ext RT or
RT)
▪ e: Pump operation
8.2.3
Quick wizard: Options
Domestic hot water settings
Following settings must be made accordingly.
#
Code
Description
[A.2.2.1]
[E-05]
DHW operation:
Can the system prepare domestic hot
water?
▪ 0 (No): NOT installed.
▪ 1
(Yes)(default):
Installed.
The
domestic hot water tank is by default
installed. Do NOT change this setting.
[A.2.2.3]
[E-07]
During domestic hot water preparation,
the heat pump can be assisted by an
electrical heater to ensure the domestic
hot water preparation even for high
desired tank temperatures.
DHW tank type:
▪ 2 (Type 3)(default): The booster
heater will also be used for domestic
hot water heating.
#
Code
Description
[A.2.2.A]
[D-02]
The indoor unit offers the possibility to
connect a field supplied domestic hot
water pump (On/OFF type). Depending
on the installation and configuration on
the user interface, we distinguish its
functionality.
DHW pump:
▪ 0 (No)(default): NOT installed.
▪ 1 (Secondary rtrn): Installed for instant
hot water when water is tapped. The
end-user sets the operation timing
(weekly
schedule
time)
of
the
domestic hot water pump when it
should run. Control of this pump is
possible through the indoor unit.
▪ 2
(Disinf.
shunt):
Installed
for
disinfection.
It
runs
when
the
disinfection function of the domestic
hot water tank is running. No further
settings are needed.
▪ 3 (Circul. Pump): Installed for tank
preheating. It runs when the domestic
hot water tank is being preheated. No
further settings are needed.
▪ 4 (CP & disinf. Sh): 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.
See also illustrations below.
Domestic hot water pump installed for…
Instant hot water
Disinfection/Tank preheating
c
f
b
a
g
c
b
a
d f
e g
a
Indoor unit
b
Tank
c
Domestic hot water pump (field supply)
d
Heater element (field supply)
e
Non‑return valve (field supply)
f
Shower (field supply)
g
Cold water
Thermostats and external sensors
NOTICE
If an external room thermostat is used, the external room
thermostat will control the room frost protection. However,
the room frost protection is only possible if the leaving
water temperature control on the unit's user interface is
turned ON.
See