Danfoss DHP-L User Guide

3.6 Auxiliary heating
If the heat demand is greater than the heat pump’s compressor capacity, the immersion heater engages auto-
matically in operating mode AUTO. The electrical heater is made up of an electric heating element on the sup-
ply line that has two outputs, AUX. HEAT 1 and AUX. HEAT 2, and can be controlled in three steps. DHP-A has
three outputs, AUX. HEAT 1, AUX. HEAT 2 and AUX. HEAT 3 and output can be controlled in five steps.
DHP-H , DHP-L , DHP-C DHP-A
230V 400V 230V 400V
Step 1 1.5 3 1.5 3
Step 2 3 6 3 6
Step 3 4.5 9 4.5 9
Step 4 12
Step 5 15
Step +4 12
Step +5 15
Tab. 1: Immersion heater output in kW
The two power steps, step 4 and step 5 for DHP-A cannot be activated when the compressor is running. Immer-
sion heater step: +4 and +5 can be connected when the compressor is running and must only be selected on
the condition that the building where the heat pump is installed has a large heating demand and the building’s
electric installation is suitable for high current consumption. In the event of an alarm, the immersion heater
engages automatically on the condition that operating mode AUTO is selected and that at least one additional
step is permitted.
User Guide
Domestic heat pumps
VUGFE102 Danfoss Heating Solutions
10

Danfoss DHP-L Specifications

General

Brand	Danfoss
Model	DHP-L
Category	Heat Pump
Language	English