Samsung MIM-E03EN User Manual page 37

Additional heating option : 40**
Heat Pump Variables for Space Heating
FSV #4011 for DHW priority is set to "0(DHW)" (Default) as a default. Space heating gets a priority by
setting FSV #4011 "1", but this is only valid when the outdoor temperature is lower than the specified
temperature defined by FSV #4012.
Cold weather compensation is applied when the space heating gets a priority (FSV #4011=1). It is due
to position of heating coil and booster heater in the water tank. Heating coil is at the bottom part of
the water tank and the booster heater is located at the middle part of the tank. So the heating coil is
efficient to heat the whole water in the tank. Chances that hot water flows through the heating coil
decrease with the space heating priority. And lower part of water in the tank might not get enough heat
with the booster heater.
temperature above this value, the space heating will be turned off, to avoid overheating.
Backup Heater Variables for Space Heating
The FSV #4021 should be set to 1(Yes) to use 2-stage electric backup heater in hydro unit as an
additional heat source. (If FSV # 4021 is 2, a 1-stage electic backup heater is used)
To compensate the lowered heat pump heating performance under very cold weather conditions, the
FSV #4023 should be set to "1(On)"(Default).
The threshold temperature to use backup heater for cold weather compensation: FSV #4024, Default
The backup heater operation is restricted to save energy in the threshold temperature range.
The FSV #4022 for backup heater priority should be set to "0 (both)" (Default) or "1" (backup) to use
backup heater. If not (booster heater priority), the backup heater can be operated in case of no booster
heater demand.
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 water outlet
temperature, 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
your house before use.
External Backup Boiler for Space Heating (Field Option)
The FSV #4031 should be set to "1 (Yes)" to use a backup boiler as an additional heat source.
(default: "0 (No installation)")
Priority of backup boiler and heat pump is defined by FSV #4032 (default: "0 (OFF)")
To compensate the lowered heat pump heating performance under very cold weather conditions, the
backup boiler operates instead of heat pump under the threshold temperature (FSV #4033, Default
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