Nibe SCA 30 - Component Wiring and Configuration; Circulation Pump Wiring; Solar Panel Cooling Function; DIP Switch Configuration

Connecting the circulation pumps
Circulation pump for solar (GP4)
Connect the circulation pump (GP4) to AA5-X9:1 (N),
AA5-X9:2 (230 V) and X1:PE.
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1
AA25
External
GP4
AA5-X9
X1
Circulation pump for cooling pool (GP14)
If there is a surplus of heating when the heating and/or
hot water requirement is satisfied the solar heating can
be used to heat a pool.
Connect the circulation pump for cooling pool (GP14) to
AA5-X9:5 (N) and AA5-X9:6 (230 V) in the unit box
(AA25).
-X9
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N
L
AA25
External
AA5-X9
GP14
Connecting solar panel cooling
To prevent the glycol mixture in the solar panel from
boiling while strong sunshine and VVM 500 is fully
charged it is possible to connect a cooling function for
the solar panel in accessory card (AA5). Cooling is gener-
ated using a relay and occurs for example by flushing out
hot water or rerouting the solar circuit to a convector
fan.
Connect the relay for solar panel cooling to AA5-X9:3
(N) and AA5-X9:4 (230 V) in the unit box (AA25).
-X9
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DIP switch
The DIP switch on the accessory card must be set as fol-
lows.
ON
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17
GB