Residential Gas Hydronic Heating System
Residential Gas Hydronic Heating System
Residential Gas Hydronic Heating System
Residential Gas Hydronic Heating System
QVM 9
Series
10
10
10
10
Proper Use
Proper Use
Proper Use
Proper Use
If the boiler not to be used for a few days, selecting the
“
unoccupied
”
mode will be more effective and convenient in
preventing freezing. In this case, do not disconnect the
boiler.
■
Check for gas leaks by using
soapy water.
■
Check ventilation (air discharge
and inlet).
Open the gas supply valve
Open the gas supply valve
Open the gas supply valve
Open the gas supply valve....
Wire the unit to 115V 60Hz AC.
■
When the conditions for heating
and hot water are fully set. The
“
HEAT ON
”
lamp will light and the
boiler will run.
■
If the water level is below a
safe level, the
“
Check
”
lamp will
be lit and the boiler will not run.
The water supply valve should
always be open so that the auto
water filling valve can operate.
■
When the
“
Check
”
lamp is lit,
an error code is indicated on
the temperature indicator.
Contact the service center or
your dealer.
Use the
Use the
Use the
Use the
selector switch
selector switch
selector switch
selector switch according to the applications
according to the applications
according to the applications
according to the applications.
■
Heating will start when ether
the room or water temperature
falls below the set point.
■
If domestic hot water is
required during a heating
cycle. The unit will switch over
from heating to provide
domestic hot water.
■
When the use of hot water is
stopped. The unit automatically
converts back to the heating
mode.
■
If hot water is to be used without
heating, press the
“
SUMMER
”
button on the room thermostat.
■
Disconnect the boiler.
■
Drain the water in the boiler by opening the drain
or discharge valve (to prevent freezing in winter).
■
Close the water supply valve and
open the hot water tap to drain
water in the hot water piping to
prevent freezing in winter.
■
Close the gas supply valve.
Before Using
Before Using
Before Using
Before Using
Notes for Ignition
Notes for Ignition
Notes for Ignition
Notes for Ignition
When the Boiler is not used for
When the Boiler is not used for
When the Boiler is not used for
When the Boiler is not used for
A Prolonged Period
A Prolonged Period
A Prolonged Period
A Prolonged Period
