Residential Gas Hydronic Heating System
Residential Gas Hydronic Heating System
Residential Gas Hydronic Heating System
Residential Gas Hydronic Heating System
QVM 9
Series
28
28
28
28
1)
Check the flammability and rigidity of floor & wall
materials. Ensure that all minimum clearances to
walls, ceilings, overhangs, etc. have been met.
2) Freeze Prevention Device
The units must be
wired-in to a 115 volt
electrical
circuit once they have been connected to water
piping and the circuit has been filled with water. If
the freeze prevention circuit starts due to a low-
water condition, the pump will begin running on
“
air
”
and cause premature failure and will void the
warranty on the pump.
Check to see if the unit is properly connected
and the piping is insulated properly.
If the insulation has worn off or is not fitted, the
risk of freezing of piping and severe damage to
the unit is considerable. Thoroughly check the
piping insulation and replace where necessary.
■
Measures to prevent fire must be taken and
check that flue ducts are installed in compliance
with the instructions?
Test Operation and Checks
Test Operation and Checks
Test Operation and Checks
Test Operation and Checks
■
Type of gas being supplied(the one indicated on the
rating plate of the units)
■
When the type of gas does not match the one
specified on the unit rating plate, modification and re-
adjusting will be required(Consult your heating dealer
or a qualified technician with the gas utility company).
■
Test for leakage at all gas piping connections.
■
AC 115 volts 15 Amp. dedicated circuit with approved
grounded connection.
■
Heating and hot water pipes must be properly installed
and in compliance with the standard installation
methods and local code requirements.
CAUTION !
CAUTION !
CAUTION !
CAUTION !
Any air remaining in the heat exchanger piping will
cause rapid corrosion in the unit.
■
Completely vent the air at this time.
■
Check DIP switch setting against the factory settings
shown on the control board diagram.
■
Check for proper flue pitch, slope and alignment for
QVM 9(condensing) hydronic heating systems.
■
Fill plastic condensate trap in QVM 9 check correct
routing of all condensate and vent drain tubing. Run
condensate drain by gravity to nearest floor drain or
condensate pump.
Note! -
Note! -
Note! -
Note! - Condensed water is
slightly acidic.
Avoid draining into piping in disrepair or
piping exposed to freezing temperatures.
■
Connect room thermostat and check all wiring
connections at control, at molex connectors in unit
and at main circuit panel.
Checkup after Installation
Checkup after Installation
Checkup after Installation
Checkup after Installation
■
Are there any water leaks in the heating and domestic
hot water piping?
■
Are there any gas leaks in the gas piping?
Checking for Gas and Water Leaks
Checking for Gas and Water Leaks
Checking for Gas and Water Leaks
Checking for Gas and Water Leaks
Checks before Trial Operation
Checks before Trial Operation
Checks before Trial Operation
Checks before Trial Operation
