QVM 9
Series 32
No. Checking Items Measures
1. Prior to inspection and maintenance. Close the gas shut-off valve, turn off power to the unit.
2.
Check for leaks in gas piping &
connections with soapy water.
Repair the leak.
3. Emergency measures for a gas leak.
1) Close the gas shut – off valve.
2) Prohibit the use of any device which may cause gas
to ignite or explode such as matches, lighters, or
turning switches on or off.
3) Ventilate the indoor space.
4) Contact the gas supplier or call the fire department
or 911.
4.
Check for obstructions in air intake and
exhaust(flue) pipe.
Stop the unit and immediately contact the installer or
service company.
5.
Check for lack of heating water.
(Low volume or flow of water supplied
to tub or faucets)
Check the pressure of the incoming water supply (If the
pressure is lower than the minimum hot water pressure,
install a separate pressurizing pump).
6. Check for external contamination. Stop the unit and clean with neutral detergent.
7.
Precautions for restart after prolonged
shutdown.
(Typical for vacation homes)
Check if condensate trap is filled to mark. If not, add
water to fill to mark.
8.
Check for clogging of the strainers at
the heating inlet or hot water inlet.
Clean strainer(s). If clogged it may be ‘advisable to’
flush system completely
9. Abnormal noise during the operation. Stop the unit and contact your dealer.
10. Drainage of condensed water.
Siphon should always be filled with water to the top of
the container. The condensed water drain should be
connected to the sewer. Never drain to areas prone to
freezing temperatures. Siphon should be cleaned
annually.
Routine Maintenance
Routine Checklis
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