
B) HP unit is out of operation range
The compressor will be stopped and the DHW heater will be started, aiming to reach the Over boost set point.
Parameters
Level
Parameter
Function description
Display & Input value
Remarks
Group Code
Default
min.
Max.
Unit
I
51
46
T erminal 46 : DHW Electric heater or Backup heater
0=DHW Electric heater
1=Backup heater
0
0
1
-
Note1: Terminal46 (Electric heater) digital output can be set by Par5146, for the DHW Electric heater output, or
for the Backup heater.
If the digital output is “DHW Electric heater” the digital output follows the logic explained “DHW heater
only”, “Heat pump + Heater” and “Legionella prevention function”.
If the digital output is “Backup heater” the digital output follows the logic explained “Backup heater”
Note2: If “Backup heater” is enabled as 1, 2 or3 by Par4600, the “DHW Over boost set point” will not be
available.
Digital Output “Electric heater”
(3.0°C)
DHW set point
Comfort
Economy
compressor
stopped
DHW hysteresis
DHW
temperature
Compressor
ON
OFF
DHW heater
ON
OFF
(5.0°C)
Over boost hysteresis
DHW Over boost
set point (60.0°C)
(50.0°C)
(40.0°C)
107
8. Domestic Hot Water Production
Содержание AEYC-0639U-CH
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