Locations Of The Switches; Conversion Table For Sensors; Brine Installation; Brine Pipes And Expansion Tank - Danfoss DHP-R Eco Installation Instructions Manual

6.14 Locations of the switches

Auto
S1 Off S2
S1 Switch compressor. (Auto/Off )
S2 Switch coolant pump. (Auto/Off/Manual)
NOTE! Must only be used in manual position when fill-
ing the system or other maintenance/service work.
S3 Switch circulation pump. (Auto/Off/Manual)

6.15 Conversion table for sensors

°C
-30
-20
-10
0
10
20
30
40
50
60
70
80
90
100
110
120
130
When reading the resistance of the sensors, the sensor
leads must first be disconnected from the control equip-
ment.
First measure the sensor including the cable.
Then measure the sensor only.
Auto Auto
Off S3 Off
Manual Manual
ohm
882
921
960
1000
1039
1078
1117
1155
1194
1232
1270
1309
1347
1385
1422
1460
1497
7

Brine installation

7.1

Brine pipes and expansion tank

• Install a filter (max mesh size 0.7 mm) in the input cool-
ant pipe to protect the unit against foreign particles.
• Install the input coolant pipe with all the accompanying
components.
• Install the output coolant pipe with all the accompany-
ing components.
• Supply both the pipes with diffusion sealed condensa-
tion insulation.
• The expansion vessel for the coolant is sized according
to the manufacturer's instructions.
• Max operating pressure heat source (see manufacturer's
plate). Max 6 bar.
7.2

Filling the coolant system

⚠
WARNING! Ethylene glycol and ethanol must be han-
dled according to the instructions on the packaging!
6
1 Connect the hose from the filler pump to valve 1.
2 Connect the return hose to valve 2.
3 Close valve 3.
4 Open valves 1 and 2.
5 Mix coolant in container 4.
6 Ensure that the heat pump is not powered.
7 Start filling pump 5.
8 When the coolant flows out of the return hose the
internal coolant pump is bled inside the heat pump.
9 Set switch marked S1 in position Off. (Compressor
Auto/Off )
10 Switch on the heat pump's safety switch.
11 Set switch marked S2 in position Manual. (Brine pump
Auto/Off/Manual)
12 Then let both the pumps operate until there is no air
mixture left in the circuit.
VMIFI102
1
2
3
4
5
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