Danfoss DHP-AT, Installation Manual, Page: 25 / 44

7.4 Connecting external electrical heater
A B
38
L
N
Connect the signal cable and the power connection between the heat pump (1) and the optional external electri-
cal heater (38).
7.5 Connecting hot water sensor
Connect the hot water tank sensor cable (12) to the connector in the heat pump marked Hot water sensor. Attach the sensor to the hot
water tank.
Caution
The hot water tank sensor must be connected to the heat pump and attached to the system even though the
hot water tank itself is excluded from the installation.
7.6 Connecting buffer tank sensor
Connect the buffer tank sensor cable (13) to the heat pump to the connector marked Buffer tank sensor.
If a buffer tank is used, attach the sensor in the applicable pocket in the buffer tank. If no buffer tank is present in the system, attach the
sensor to the supply line piping and heat insulate it.
7.7 Connecting 3-way switching valve
6 5 4
3 2 1
8
1 2 3 4 5 6 7
Connect the cable between the heat pump and the 3-way switching valve for hot water (8). The pic-
ture below shows a connection example using the LK 3-way switching valve for hot water. The con-
nection may be different if using other types of 3-way switching valves for hot water.
Installation Guide DHP-AT
Danfoss Heating Solutions VMGFI302
25