Daikin ERLQ004~008CAV3 Reference Manual page 44

8 Configuration
# Code
[A.2.1.8] [7-02] The system can supply leaving water to
up to 2 water temperature zones. During
configuration, the number of water zones
must be set.
Number of LWT zones:
▪ 0 (1 LWT zone)(default): Only 1
leaving water temperature zone. This
zone is called the main leaving water
temperature zone.
▪ a: Main LWT zone
▪ 1 (2 LWT zones): 2 leaving water
temperature zones. The zone with the
lowest leaving water temperature (in
heating) is called the main leaving
water temperature zone. The zone
with
temperature (in heating) is called the
additional leaving water temperature
zone. In practice, the main leaving
water temperature zone consists of
the higher load heat emitters and a
mixing station is installed to achieve
the desired leaving water temperature.
▪ a: Add LWT zone
▪ b: Main LWT zone
Installer reference guide
44
Description
a
the highest leaving water
a
b
# Code
[A.2.1.9] [F-0D] When the space heating/cooling control
is OFF by the user interface, the pump is
always OFF. When the space heating/
cooling control is On, you can select the
desired pump operation mode (only
applicable during space heating/cooling)
Pump operation mode:
▪ 0 (Continuous): Continuous pump
operation, regardless of thermo ON or
OFF condition. Remark: continuous
pump operation requires more energy
than
operation.
b
b
▪ a: Space heating/cooling control
(user interface)
▪ b: OFF
▪ c: On
▪ d: Pump operation
▪ 1 (Sample)(default): The pump is ON.
When there is heating or cooling
demand
temperature has not reached the
desired temperature yet. When thermo
OFF condition occurs, the pump runs
every 5 minutes to check the water
temperature and demand heating or
cooling if necessary. Remark: Sample
is NOT available in extended room
thermostat control or room thermostat
control.
a
b
d
g
b
▪ a: Space heating/cooling control
(user interface)
▪ b: OFF
▪ c: On
▪ d: LWT temperature
▪ e: Actual
▪ f: Desired
▪ g: Pump operation
▪ 2 (Request): 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:
ERLQ004~008CAV3 + EHVH/X04+08S18CA + EHVH/X08S26CA
Description
sample or request pump
a
c
c
d
as the the leaving
c
e
f
c
Daikin Altherma - Low Temperature Split
4P313775-1C – 2012.11