5
1.4. Technical data
The split box is composed of a plate heat exchanger which transfer heat from
condensing refrigerant to a water circuit . Required temperature sensors, refrigerant
filter and pressure transmitter together with control board ensures correct operation
of the unit .
1.4.1. Process and Instrumentation Diagram
A: Refrigerant flow
B: Refrigerant return
C: Space heating return
D: Space heating flow
1: Condenser
2: Filter
3: Pressure sensor
4: Temp . sensor, refrigerant return
5: Temp . sensor, space heating return
6: Temp . sensor, space heating flow
7: Print control board (PCB)
8: Supply power
9: Signal cable to outdoor heat pump
10: Residual current device (RCD) (optional)
11: Cable for heat tracing (optional)
A
B
D
C
1
2
3
4
5
6
7
A: Refrigerant flow
B: Refrigerant return
C: Space heating return
D: Space heating flow
1: Condenser
2: Filter
3: Pressure sensor
4: Temp. sensor, refrigerant return
5: Temp. sensor, space heating return
6: Temp. sensor, space heating flow
7: Print control board
8: Supply power
9: Signal cable to outdoor heat pump
10: Residual current device (RCD)
(optional)
11: Cable for heat tracing (optional)
9
10
8
11
Figure 2 . Process and instrumentation diagram .
1.4.2. Component location
1
1
2
2
3
3
4
4
5
5
6
6
A
A
B
B
C
C
D
D
990300015 Splitbox komponentplacering
XL1
XL2
XL53
XL52
HZ2
EP2
PF3
UB1
UB2
UB3
BT15
BT3
BP4
AA23
AA23-X100
AA23-X4
AA23-S3
A23-F3
AA23-X1
BT12
Figure 3 . Component location
