Samsung EHS AE050RXYDEG/EU Manual page 144

8. System configuration
2) Backup Heater variables for Space heating (#402*)
※ BUH : Backup heater / BSH : Booster heater
Main Menu Sub Menu
(FSV) Function
Heating
Backup Heater
(FSV 40**)
• #4021 : Application of the backup heater
– FSV #4021 should be set to "1" (2-step: BUH 1 + BUH 2) or "2" (1-step: BUH 1) for using the electric backup heater in
the tank integrated hydro unit as an additional heat source.
• #4022 : Priority between the booster heater and the backup heater
– FSV #4022 for backup heater priority should be set to "2" (*BSH) or "0" (Both), "1" (BUH) to use backup heater.
If the BSH is set to priority, the backup heater can be operated in case of no booster heater demand.
• #4023 : Enabling the backup heater for cold weather compensation
– To compensate the lowered heat pump heating performance under very cold weather conditions, the FSV #4023
should be set to "1" (On).
• #4024 : Threshold temperature for control of the backup heater
– The threshold temperature to use the backup heater for cold weather compensation : #4024 = 0 ℃ (Default)
→ T he backup heater can only be operated below the threshold temperature for optimum energy saving.
(Range -25 ~ 35℃)
• #4025 : Temperature at which the backup heater turns on during defrost mode
– The threshold temperature for backup heater operation during defrost mode to prevent cold draft because of
chilled water can be controlled by adjusting FSV #4025. Under FSV #4025 of the water outlet temperature, the
backup heater will be turned on.
NOTE
To use both heaters together at the same time, please check the capacity of the power circuit breaker of
the mains power supply, before commissioning.
Installer reference guide / Mono tank integrated type
40** | Heat
401* | Heat Pump
402* | Backup Heater
403* | Backup Boiler
404* | Mixing Valve
405* | Inverter Pump
406* | Zone Control
50** | Others
Description
501* | Outing
502* | DHW Saving
Application
503* | TDM Variable (TDM Product only)
504* | Power Peak Control
BUH/BSH Priority
5051 | Frequency Ratio Control
5061 | Heat/DHW Capa. Ratio
Cold Weather Compensation
508* | PV Control
509* | Smart Grid Control
Threshold Temp.
Defrost Backup Temp.
50** | Others
501* | Outing
502* | DHW Saving
503* | TDM Variable (TDM Product only)
504* | Power Peak Control
5051 | Frequency Ratio Control
5061 | Heat/DHW Capa. Ratio
508* | PV Control
509* | Smart Grid Control
402* | Heat Pump
4021 | Application
4022 | Backup Heater/Booster Heater Priority
4023 | Cold Weather Compensation
4024 | Threshold Temp.
4025 | Defrost Backup Temp.
502* | DHW Saving
FSV Step Unit Default
5021 | DHW Saving Temp.
5022 | DHW Saving Mode
5023 | DHW Saving Thermo on Temp. 4021 - -
4022 1 - 2 (BSH)
4023 - -
4024 1 ˚C
4025 5 ˚C
508* | PV Control
5081 | Application.
5082 | Setting Temp. Shift Value(Cool)
5083 | Setting Temp. Shift Value(Heat)
Min. Max.
0 (No) 0 2
0 (Both) 2 (BSH)
1 (Yes) 0 (No) 1
0 -25 35
15 10 55
40*
401
402
403
404
405
406
50*
501
502
503
504
505
506
508
509
50*
501
502
503
504
505
506
508
509
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