Daikin Altherma R Hybrid Installer's Reference Manual page 152

9 | Operation
Installer reference guide
152
Boiler shutdown when the required temperature is reached
The boiler controller can temporarily stop the requested space heating demand.
The burner will stop. The shutdown occurs because the requested temperature is
reached. When the temperature drops too fast and the anti-cycle time has passed,
the shutdown will be cancelled.
Self-test
The sensors check the boiler controller. During the check-up, the boiler controller
does NOT perform any other tasks.
Ventilation
When the appliance is started, the fan goes to starting speed. When the starting
speed is reached, the burner is lit. The code will also be visible when post-
ventilation is taking place after the burner has stopped.
Ignition
When the fan has reached its starting speed, the burner is ignited by means of
electric sparks. During ignition the code will be visible on the service display. If the
burner does NOT ignite, a new ignition attempt occurs after 15 seconds. If after 4
ignition attempts the burner is NOT yet burning, the boiler will go into fault mode.
Domestic hot water operation
Not applicable for Switzerland
The domestic hot water supply has priority over space heating performed by the
gas boiler. If the flow sensor detects a domestic hot water demand of more than
2 l/min, space heating by the gas boiler will be interrupted. After the fan has
reached speed code and ignition is done, the boiler controller goes into domestic
hot water mode.
During the domestic hot water operation, the fan speed and hence the appliance
power are controlled by the gas boiler controller so that the domestic hot water
temperature reaches the domestic hot water temperature setting.
The domestic hot water supply temperature must be set on the user interface of
the hybrid module. See the user reference guide for more details.
Domestic hot water comfort function/Frost protection/Keep hot function
Not applicable for Switzerland
appears on the display when either the domestic hot water comfort function, the
frost protection function or the keep hot function is active.
space heating operation
When a space heating request is received from the indoor module, the fan is
started, followed by the ignition, and the space heating operation mode. During
the space heating operation, the fan speed and hence the appliance power are
controlled by the gas boiler controller so that the space heating water temperature
reaches the desired space heating supply temperature. During the space heating
operation, the requested space heating supply temperature is indicated on the
operating panel.
The space heating supply temperature must be set on the user interface of the
hybrid module. See the user reference guide for more details.
CHYHBH05+08AF + EHYKOMB33A
Daikin Altherma R Hybrid
4P471761-1E – 2020.10