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MAINTENANCE
A. GENERAL (WITH BOILER IN USE)
General 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.
2. Observe general boiler conditions (unusual noises,
vibrations, etc.)
3. Observe operating temperature and pressure on the
combination gauge located in the supply piping on the
left side of the boiler. Boiler pressure should never be
higher than 5 psi below the rating shown on the safety
relief valve (25 psig maximum for a 30 psig rating).
Boiler temperature should never be higher than 240° 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 procedure listed in the Lighting
Operating Instructions to shut down appliance in
Section 9, Start-Up Procedure Part B.
B. WEEKLY (WITH BOILER IN USE)
Flush float-type low-water cut-off (if used) to remove
sediment from the float bowl as stated in the
manufacturer’s instructions.
C. ANNUALLY (BEFORE START OF
HEATING SEASON)
1. Check boiler room floor drains for proper functioning.
2. Check function of the safety relief valve 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 as described in Section 9, Part D,
“Check Operation”.
5. Test function of ignition system safety shut-off features
as described in Section 9, Part D,
“Check Operation”.
6. Remove the top/front jacket panel and inspect for any
foreign debris that may have entered through air
intake vent.
7. Inspect burner for deterioration. Replace if necessary.
8. With boiler in operation check that condensate is
dripping from condensate tubing. Check for any
restriction in condensate drain line.
D. CONDENSATE CLEANING
INSTRUCTIONS
1. Check trap for blockages and that the check ball is
free floating. Remove the screw bottom of the
condensate trap to allow any sediment to clear the
trap. Replace once done.
2. Check the condition of any condensate pumps that
are installed. Impellers can deteriorate over time do to
exposure to the acidic condensate.
3. Check the condition of any neutralization systems
installed. Replace neutralizing agent if needed.
4. Check that the pressure switch tap has not been
blocked or clogged with debris.
E. INSPECTION AND CLEANING OF
COMBUSTION CHAMBER COILS
Before beginning this procedure, you must have on hand
the following items:
–
a nylon or brass brush (not steel)
–
“Rydlyme” (recommended for best results)
(available online www.rydlyme.com) or “CLR”
(available at most hardware stores)
1. Shut the boiler down and access the heat exchanger
using the following steps:
a. Close the manual gas shutoff valve and wait for
the unit to be cool to the touch.
The following annual inspection must be performed
by a qualified service technician.
CAUTION
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
Содержание PBC-34
Страница 1: ...PBC Gas Boilers PBC 34 PBC 40 PBC 52 Combination Installation Operation Maintenance Manual Series...
Страница 22: ...20 WATER PIPING AND CONTROLS Figure 4 6 Recommended Central Heat Piping...
Страница 23: ...21 Figure 4 7 Recommended Domestic Hot Water Piping WATER PIPING AND CONTROLS...
Страница 31: ...29 Figure 7 2 Wiring Schematic and Connection ELECTRICAL CONNECTIONS...
Страница 45: ...E LIGHTING OPERATING PROCEDURES 43 START UP PROCEDURE...
Страница 57: ...THIS PAGE INTENTIONALLY LEFT BLANK...
Страница 60: ...58 REPAIR PARTS Figure 13 2 PBC 34 Combustion Components...
Страница 62: ...60 REPAIR PARTS Figure 13 3 PBC 40 and PBC 52 Combustion Components...