Daikin ERSQ 011AAV1, Service Manual

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Field Setting ESIE09-08
98 Test Operation
[A] Option setup
„ [A-02] Temperature difference for leaving and returning water
The unit is designed to support radiator operation. The advised leaving water temperature
(set by the remote controller) for radiators is 65°C. In such a case the unit will be controlled
to realize a temperature difference (
Δ T) of 10°C, which means that the returning water to the
unit is around 55°C.
Depending on the installed application (radiators, fan coil units, ...) or situation, it can be
required to change the
Δ T. This can be done by changing field setting [A-02].
„ [A-03] Multi set point 1 temperature.
„ [A-04] Multi set point 2 temperature.
Notes : 1. When temperature reducing devices are installed, the system can be configured to use multi
set points, also the demand PCB (option) is needed.
2. The selected values for multiple set point should be lower than the value from remote
controller (reference temperature) or domestic hot water temperature (pattern A).
3. Daikin does not offer any temperature reducing device (TRD). This system (multi set point
control) only provides the possibility to use multi set point. It’s than also the installers
responsibility to make sure that the whole system is operating well.
First
code
Second
code Setting name
Default
value Range Step Unit
A Option setup
02 Set point: required temperature difference for
leaving and returning water
10 5~15 1 °C
03 Set point: multiple set point 1 required
temperature value
35 25~80 1 °C
04 Set point: multiple set point 2 required
temperature value
65 25~80 1 °C