
Must be allowed to define the Outdoor air temperature below which the space heating will be heated by heater.
Set the parameters for Par4610=0 (Backup heater always enabled), or Par4610=1 (depends on Outdoor air
temperature).
If Par4610=0, Backup heater is ON based on Par4605 (Integration time for starting heaters) is enable regardless of
the Outdoor air temperature.
If Par4610=1, Backup heater can be turned ON only if the both of the following conditions are met
Par4613 (Outdoor air temperature to enable Backup heater)
Par4605 (Integration time for starting heaters)
(-5.0°C)
hysteresis
Outdoor air
temperature
Compressor ON
OFF
Backup heater ON
OFF
Heat pump
Heat pump
Heater
Heat pump
Heat pump
Heater
hysteresis
Par4612
Par4611
(0.0°C)
Par4614
Par4613 (5.0°C)
(10.0°C)
Note1: The calculation of the Integration time only begins after the time set for Par4604 (Heater activation delay
time) has elapsed. The function is designed to prevent the heater from starting in Supplementary mode, to
allow the HP unit time to reach steady operation.
Note2: If the Integration time for starting the heaters is 0, control will be in stages, based on the control set point
and the value set for the hysteresis.
Note3: If the HP unit shuts down due to the Outdoor air temperature being above or below its operating limits and
due to the Max. water temperature produced based on the Outdoor air temperature, the heater will operate
in Replacement mode.
Note4: If Terminal46 (Electric heater) will be enabled as Backup heater, the “External heat source for space
heating” will be not allowed. To guarantee correct operation, the two functions cannot be activated at the
same time.
114
8. Domestic Hot Water Production
Содержание AEYC-0639U-CH
Страница 156: ...20810030 M ...