Operating Manual
“Warm N Dry”
www.hvsolutions.com.au
7 of 12
Copyright 2010
Summer Months
During summer the day time roof temperature can become too hot, set the Heat Switch to OFF.
This will stop the house becoming over heated during the day but still provide ventilation when
the roof space cools down to below the SP1 setting during the night. You may choose to set the
variable speed control to a higher setting during summer so that more air is brought in during the
night.
Factory Default Settings
The default settings are for fully automatic operation assuming a severe condensation problem.
SP1 is set at 18.0 degrees and SP2 is set to 5.0 degrees. If the condensation problem is very
bad, SP2 could be reduced to as low as 3 degrees but
home heating would need to be
increased.
If the condensation problem is only slight then SP2 could be set to as high as 8 degrees. HVS
has determined that 5 degrees is the best setting for average to severe condensation problems.
Other Settings
If your home does not have a condensation problem and you purchased the HVS for the
ventilation and heat recovery benefits alone then the setting of SP2 could be increased to 10 or
12 this would stop any fresh air coming in below that temperature.
Note:
If you have your home sprayed with insecticides by a Pest Control company, switch the
“Warm N Dry”
OFF for 24 hours to allow the sprays to do their job. Place both the Fan and
Heat switches in the OFF position to turn the system off.
Don‟t forget to turn it back on.
