12
VMBQH12J
Fitting the relay set to the heat pump
The relay set ensures that there is no re-freezing in the drip tray
once defrosting has finished.
The K6 relay has three setting options on the front, where you
can adjust the relay’s function, time and range.
Dr (FUNCTION) stands for “Delay on release”, which means that
the power feed is maintained while you are adjusting the two
other settings.
TIME represents how many time units are counted before the
power is interrupted.
RANGE represents how long a unit will last.
Figure 4: The relay set fitted to the heat pump.
Position Name
1 Defroster card
2 Terminal block, 125
3 Relay K5, Phoenix
4 Relay K6, Carlo Gavazzi
10. Fit the terminal block and the two relays in the positions
shown in the figure above.
11. Set relay K6 to default setting as per the figure below:
Figure 5: Default setting for relay K6.
This setting means that the power will be maintained for 0.5
hours (5 x 0.1h) once defrosting has finished.
Electrical connection to the heat pump
12. The electrical connection to the heat pump is made using
the attached cable set and the junction clamps, as per the
wiring diagram, figure 7. (The cables have the equivalent
marking where they are to be connected.)
Electrical connection to outdoor unit
Figure 6: Electrical connection for outdoor unit.
13. Loosen and remove the outdoor unit’s side panel.
14. Feed the transformer cable into the outdoor unit’s con-
nection box.
15. Connect the transformer cables to the neutral terminal
block (N/220) and terminal block 126.
16. If required, feed through the heating cable for the out-
door unit’s connection box.
17. Connect the heating cable’s cables to the neutral terminal
block (N/220) and terminal block 127.
18. Connect a 230V supply from terminal block 125 in the
heat pump to terminal block 125 in the outdoor unit’s
connection box.
19. Replace the side panel.
0p
In
Id
Io
Dr
R
Rb
FUNCTION
0,1s
1s
6s
60s
0,1h
1h
10h
RANGE
1
2
3
4
5
6
7
8
9
10
TIME
FUNCTION: Set to Dr (Delay
on release)
TIME: Set to 5
RANGE: Set to 0.1h
0V
230V
Fan, high speed
Fan, motor protection
cut out
Fan, low speed
Defrost sensor
Heat, drip tray
Accessories
Heating cable