Residential Gas Hydronic Heating System
Residential Gas Hydronic Heating System
Residential Gas Hydronic Heating System
Residential Gas Hydronic Heating System
QVM 9
Series
26
26
26
26
Using the Thermostat, FR-5
Using the Thermostat, FR-5
Using the Thermostat, FR-5
Using the Thermostat, FR-5
3. The unit runs automatically for 20 minutes then
stops for the selected time; this cycle is
continuously repeated until the occupant returns
home and de-selects this setting (
“
ON
”
lamp is
lit only when the boiler is running).
4. It will run according to the repeat time you set.
If you open a hot water faucet, it will automatically
change to hot water mode and stop operating in this
mode.
1.
Press the
“
Set Temperature
”
button. The room
temperature will be indicated on the temperature
display and the Room Temperature lamp and
“
ON
”
light will go on.
2. Turn the
“
Set Temperature
”
button to select the desired
room temperature(the temperature of the heating water
is automatically set at 176
℉
)
3. The unit is run at the room temperature selected.
If you open a hot water faucet, it will
automatically change to hot water mode and stop
heating the home in this mode.
4. To stop the operation in this mode, set
“
Set
Temperature
”
control below 55
℉
. Then, the
boiler will stop and the freeze prevention function
will stand-by.
When the heating is controlled
When the heating is controlled
When the heating is controlled
When the heating is controlled
by the room temperature
by the room temperature
by the room temperature
by the room temperature
