Install Instructions

36
MAINTENANCE
A. GENERAL
1. Disconnect this boiler from the gas supply piping
during any pressure testing of the gas system.
2. Check pipes adjacent to cold walls or in unheated
spaces. Insulate and tape them if necessary to be
sure they can’t freeze up. Keeping the water moving
at all times will reduce the likelihood of freezing.
3. If there is considerable foreign matter in the boiler
water, the boiler should be shut down and allowed to
cool, then drained and thoroughly flushed out. Use
the drain valve at the bottom of the right side to
drain the boiler. Pipe the drain cock to a suitable
drain or containment device (if antifreeze is used).
Flush the system to remove remaining matter. If there
is evidence that hard scale has formed on the
internal surfaces, the boiler should be cleaned by
chemical means as prescribed by a qualified water
treatment specialist.
4. There must be no signs of continuous wetness at the
chimney. If signs of continuous wetness are observed,
a qualified service agency must be consulted to
modify the vent configuration to prevent the formation
of condensate, which may damage the vent pipe.
B. DAILY MAINTENANCE (WITH BOILER
OPERATING)
Daily boiler observation can be performed by the owner.
If any potential problems are found, a qualified installer
or service technician/agency must be notified.
1. Remove any combustible materials, gasoline and
other flammable liquids and substances that generate
flammable vapors from the area where the boiler is
contained. Make certain that the boiler area has
ample air for combustion and ventilation and that
there are no obstructions to the free flow of air to
and from the boiler.
2. Observe general boiler conditions (unusual noises,
vibrations, etc.)
3. Observe operating temperature and/or pressure on
the gauge located on the right side of the boiler.
Boiler pressure should never be higher than 5 psi
below the rating shown on the safety relief valve.
The valve rating can be found on the top of the
safety relief valve (see Figure 6.1 or 6.6 for location
of the safety relief valve). Boiler temperature should
never be higher than 250°F.
4. Check for water leaks in boiler and system piping.
5. Smell around the appliance area for gas. If you smell
gas, follow the “To Turn Off Gas to Appliance”
procedure listed in the Lighting/Operating
Instructions in Section 8.
C. WEEKLY MAINTENANCE (WITH BOILER
OPERATING)
1. Flush float-type low-water cut-off (if used) to remove
sediment from the float bowl as stated in the
manufacturer’s instructions.
D. MONTHLY MAINTENANCE (WITH BOILER
OPERATING)
1. Check boiler room floor drains for proper
functioning.
2. Check function of the safety relief valve (monthly
unless specified otherwise by manufacturer) by
performing the following test:
a. Check valve piping to determine that it is
properly installed and supported.
b. Check boiler operating temperature and pressure.
c. Lift the try lever on the safety relief valve to the
full open position and hold it for at least five
seconds or until clean water is discharged.
d. Release the try lever and allow the valve to close.
If the valve leaks, operate the lever two or three
times to clear the valve seat of foreign matter. It
may take some time to determine if the valve has
shut completely.
e. If the valve continues to leak, it must be replaced
before the boiler is returned to operation.
f. Check that operating pressure and temperature
have returned to normal.
g. Check again to confirm that valve has closed
completely and is not leaking.
3. Test low-water cut-off (if used) as described by the
manufacturer.
4. Test limit by lowering the limit set point until the
main burners shut down. When proper operation is
confirmed, return the set point to the desired setting.
5. Test function of gas safety shut-off features as
described by gas valve and ignition control
manufacturer.
6. Cycle the boiler at least once and check operation of
the vent damper.
E. ANNUAL MAINTENANCE (BEFORE
START OF HEATING SEASON)
1. Check flueways and burners for cleanliness and
clean if necessary. Use the following procedure if
cleaning is required:
a. Refer to the Operating Instructions in Section 8
“To Turn Off Gas to Appliance.”
b. Turn off all electrical power to the boiler.
c. Remove burners and brush gas outlet ports
lightly using a soft bristle brush.
When servicing or replacing components, be
absolutely certain that the following conditions are
met:
●
Water, gas and electricity are off.
●
The boiler is at room temperature.
●
There is no pressure in the boiler.
DANGER