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5.0 Venting the equipment
Switch off the pump (disconnect on separate switch or draw out a wire)
The pipe union on the pump case should be turned counter-clockwise until air emerges. When the liquid
starts flowing shut it again.
Switch on the pump and add liquid, if needed.
Note: It is not recommended that you switch off the pump when leaving the house, except for periods when
only warm air input is needed.
6.0 Adjustment
The installation is now ready to work and must be adjusted for optimal performance.
Adjustment should be made as soon as possible and on a sunny day.
6.1 Adjustment of the flow in the solar collector
Make sure that the system is well vented for instance by running the pump for a couple of hours
(see page 13). At low speed the flow should be minimum 1.0 L/min. The velocity varies according
to the amount of sunlight.
The flow is indicated at the very back of the white marking. Normally, the flow is higher than 1.0 L/min
which is perfectly OK.
If the initial flow is less than indicated above, check if the installation directions have been followed
correctly.
Reduced flow may be caused by air in the system or lack of liquid. You may force the liquid to
circulate by means of a power drill pump until the air is out. See page 13 for directions.
Be sure to read the flow on the correct side of the felt pad
!
