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POOL COVER / SET BACK INTERLOCK
If an electric automatic pool surface cover is to be used on the swimming pool, then it is possible to electrically
link the cover control box to the Heatstar, so that
‘air temperature set back’ mode is automatically selected as
soon as the cover closes across the pool and
‘normal air temperature’ mode automatically selected as soon as
the cover is opened.
The electrical link in the Heatstar comprises of a pair of terminals
– one terminal has a 12v feed, if this feed is
switched via a remote relay so that it connects to the second terminal, then
‘cover open’ mode is selected. The
relay requires to maintain a
‘closed circuit’ status and cannot be momentary.
Alternatively, these terminals can be connected to other methods of control, i.e. a manual switch in the pool
room or a time clock etc. As a simple
‘default’ a manual switch is supplied separate with the Heatstar unit which
can be used for the purpose of switching the set back interlock facility between the two modes.
BOILER OVERRUN
With some larger output boilers, it is advisable to install a relay to enable the boiler pump to
‘run on’ for a short
period of time in order to dissipate any residual heat from the boiler. This facility can be specified as an option
within the Heatstar.
EXTERNAL AIR MOTORISED VALVE (Super version only)
This would apply to Heatstar
‘Super’ versions only.
A separate external motorised heating valve to control air heating should be provided within the boiler pipe circuit
supplying the Heatstar.
This valve is to be electrically powered open and close by the Heatstar.
A 230v Single phase live supply is provided from the Heatstar to power the valve open.
If the motorised heating valve is of
‘spring return’ type, then the valve will close automatically as soon as the
230v supply from the Heatstar is switched off.
If the motorised heating valve is of
‘power close’ type, then a separate 230v supply is provided from the Heatstar
to power the valve close.
A Neutral and Earth connection should also be made to the external motorised valve from the Heatstar electrics.
The maximum current available from the Heatstar for this purpose is 3 Amps.
If the current loading of the motorised heating valve exceeds this rating, then a separate suitably sized relay
should be installed to switch the electricity to the valve.
Summary of Contents for XF EC
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