40
Heat pump controller RS8GF202 © Danfoss 2015-08
AK-HP 780
Wiring
Decide during planning which function is to be connected and
where this will be.
1. Connect inputs and outputs
Here are the tables for the example:
Mounting and wiring - continued
The function of the switch functions can be seen in the last column.
There are pressure transmitters AKS 32R and AKS 2050 available for
several pressure ranges.
Here there are two different ones. One up to 59 bar and two up to 159
bar.
Signal
Module
Point
Terminal
Signal type /
Active at
Discharge gas temperature - Sd
1
1 (AI 1)
1 - 2
Pt 1000
Suction gas temperature - Ss
2 (AI 2)
3 - 4
Pt 1000
Compressor control - Sctrl
3 (AI 3)
5 - 6
Pt 1000
External main switch
4 (AI 4)
7 - 8
closed
"Pump control" - S7
5 (AI 5)
9 - 10
Pt 1000
Suction pressure - P0
6 (AI 6)
11 - 12
AKS 2050-59
Discharge pressure - Pd
7 (AI 7)
13 - 14
AKS 2050-159
Level switch, oil, comp.1
8 (AI 8)
19 - 20
closed
Level switch, oil, comp..2
9 (AI 9)
21 - 22
closed
Level switch, oil, comp..3
10 (AI 10)
23 - 24
closed
Level switch, oil, comp..4
11 (AI 11)
25 - 26
closed
Solenoid valve, oil, Comp. 1
12 (DO 1)
31 - 32
ON
Solenoid valve, oil, Comp. 2
13 (DO 2)
33 - 34
ON
Solenoid valve, oil, Comp. 3
14 (DO 3)
35 - 36
ON
Solenoid valve, oil, Comp. 4
15 (DO 4)
37 - 38
ON
Solenoid valve , oil, Receiver
16 (DO 5)
39 - 40 - 41
ON
17 (DO6)
42 - 43 - 44
ON
Alarm
18 (DO7)
45 - 46 - 47
OFF
Room fan
19 (DO8)
48 - 49 - 50
ON
AKD compressor control
24
-
0-10 V
AKD pump control
25
-
0-10 V
Signal
Module
Point
Terminal
Signal type /
Active at
Level switch, oil, receiver High
2
1 (AI 1)
1 - 2
closed
Level switch, oil, receiver Low
2 (AI 2)
3 - 4
closed
Level switch, oil, Separator
3 (AI 3)
5 - 6
closed
Level switch, CO2 receiver
4 (AI 4)
7 - 8
Open
Pulse reset of stopped compressor
5 (AI 5)
13 - 14
Pulse
Thermostat sensor in engine
room- Saux1
6 (AI 6)
15 - 16
Pt 1000
7 (AI 7)
17 - 18
Oil receiver, Prec
8 (AI 8)
19 - 20
AKS 2050-159
Compressor 1
9 (DO 1)
25 - 26 - 27
ON
Compressor 2
10 (DO 2)
28 - 29 - 30
ON
Compressor 3
11 (DO 3)
31 - 32 - 33
ON
Compressor 4
12 (DO 4)
34 - 35 - 36
ON
Start signal to AKD for the pump
13 (DO 5)
37 - 38 - 39
ON
14 (DO6)
40 - 41 - 42
15 (DO7)
43 - 44 - 45
16 (DO8)
46 - 47 - 48
Signal
Module
Point
Terminal
Active at
Compressor 1 Gen. safety
3
1 (DI 1)
1 - 2
Open
Compressor 2 Gen. safety
2 (DI 2)
3 - 4
Open
Compressor 3 Gen. safety
3 (DI 3)
5 - 6
Open
Compressor 4 Gen. safety
4 (DI 4)
7 - 8
Open
5 (DI 5)
9 - 10
All comp. common safety
6 (DI 6)
11 - 12
Open
7 (DI 7)
13 - 14
8 (DI 8)
15 - 16