5M Condensate Drain; Application Notes; Trouble Shooting; Unit Will Not Cool - Marstair CC 875 Technical Manual

5M CONDENSATE DRAIN

TESTING

APPLICATION NOTES

1 The pump will work against a 5m head. Flow rate is highest with minimum head.
2 Long lengths of drain pipe should not be exposed to the outdoor ambient, otherwise freezing of condensate may
occur during winter operation.
3 It is not advisable to have the outlet of the drain well below the position of the pump, otherwise the syphon effect
may open the pump valves.
4 For normal applications, i.e. where the drain outlet is level or above the pump or within 1m below it, no extra check
valves are needed; the pump has its own internal check valves.
5 Ensure that no hoses are kinked, as this could seriously affect the pump performance.
6 Regularly clean the filter.

TROUBLE SHOOTING

Unit will not cool

Pump does not run
Cooling is interrupted
Excessive pump noise
Tel: 01823 665660
Heronhill - for all your Marstair requirements
No mains supply to the control board.
Fuse on control board blown (415mA x 20mm).
Sensor disconnected from control board.
Restriction in pump flow allowing level to
Rise and trip overflow circuit.
Check for blockage or kink in hoses.
Condensate at high level - tripping oveflow circuit.
Pump and filter blocked - remove and clean.
Air leak in hoses and/or joints.
Pumping without water in sump - control board fault.
Loose connection between sensor and control board
Loose fuse, intermittent mains supply to control board.
Water syphoning due to lack of air break.
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