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Operation
Installer reference guide
151
C08AF + EHYKOMB33A
Daikin Altherma R Hybrid
4P471761-1E – 2020.10
This manual only explains the domestic hot water making without having a
domestic hot water tank combined with the system. For the operation and needed
settings of domestic hot water in combination with a domestic hot water tank
needed for Switzerland, please see the manual of the heat pump module.
INFORMATION
For EHY32AA, prolonged instant domestic hot water operation at low
outdoor temperatures might be temporarily interrupted to protect the outdoor unit
and water piping from freezing.
9.3.1 Flow resistance graph for appliance domestic hot water circuit
Not applicable for Switzerland
0.2
0
1
3
5
7
9
11
13
15
0.4
0.6 0.8
1.0 1.2
1.4
1.6 1.8 2.0
bar
l/min
The minimum flow for domestic hot water operation is 1.5 l/min. The minimum
pressure is 0.1 bar. A low flow (<5 l/min) can reduce comfort. Make sure to set the
setpoint high enough.
9.4 Operation modes
The following codes on the service display indicate the following operating modes.
Off
The gas boiler is out of operation but is supplied with electric power. There will be
no response on space heating and/or domestic hot water demands. Frost
protection is active. This means that the exchanger is heated up if the water
temperature in the gas boiler is too low. If applicable, the keep hot function will
also be active.
If frost protection or keep hot function is activated, will be displayed (heating the
exchanger). In this mode, the pressure (bar) in the space heating installation can be
read on the main display.
Waiting mode (blank service display)
The LED at the button is lit and possibly also one of the LEDs for the domestic hot
water comfort function. The gas boiler is waiting for a space heating and/or
domestic hot water demand.
Pump overrun of space heating
After each space heating operation, the pump continues to run. This function is
controlled by the indoor unit.
