DOMINATOR INSTALLATION AND OPERATION INSTRUCTIONS
Page 34
MAINTENANCE
WARNING: Disconnect electrical power and
close the manual gas shut off valve before
performing maintenance or severe personal
injury may result!
WARNING: Improper installation, adjustment,
alteration, service or maintenance can cause
property damage, personal injury, exposure to
hazardous materials or loss of life. Installation
and service must be performed by a qualifi ed
installer, service agency or the gas supplier who
must read and follow the supplied instructions
before installing, servicing or removing this
boiler. This boiler contains crystalline silica
m a t e r i a l s t h a t h av e b e e n i d e n t i f i e d a s
carcinogenic or possibly carcinogenic to
humans when inhaled.
AVERTTSSEMENT: une instqallation, un réglage,
une réparation ou un entretien non comforme
aux normes peut entraîner des dommages
matériels, des blessures,exposition à des
matiéres dangereuses ou la mort. L’installation
et l’entretien doivent être effectués par un
installateur ou un service d’entretien qualifi é ou
le foumisseur de gaz qui doivent avoir lu les
instructions foumies avant de faire l’installation,
l’entretien ou l’enlèvement de la chaudière et les
respecter, Cette chaudière contient des
matériaux qui ont été identifi és comme étant
cancérogènes ou pouvant l’être.
CAUTION: Servicing, inspection and adjustment
must be done by a trained technician in accordance
with all applicable local and national codes.
Improper servicing or adjustment can damage the
boiler/water heater!
WARNING: The ceramic combustion chamber
contains crystalline silica. Wear a tightly fi tted
dust mask when removing the burners or heat
exchanger to prevent inhalation of airborne
fibers. Crystalline silica fibers have been
i d e n t i f i e d a s c a rc i n o g e n i c , o r p o s s i bly
carcinogenic when inhaled.
The boiler/water heater should be cleaned and inspected
once a year, before each heating season. Make sure that
the burner and ignition components are free from dust,
soot, dirt, corrosion or other deposits that would impair
the boiler/water heater’s performance. Refer to page 39
for component identifi cation.
CAUTION: Improper burner servicing can result in
premature burner failure voiding the warranty!
Burner Inspection And Removal - Figure 20
1. Close the manual shutoff valves in the gas supply
lines and turn off electrical power to the boiler/water
heater.
2. Remove the jacket front panels.
3. Disconnect the manifold gas piping at the ground
joint union(s). Also disconnect the pressure sensing
lines, pilot tubing and ignition and sensing leads.
4. Remove the manifold(s).
5. Remove the bur ner(s) from the lower front
combustion chamber panel.
6. Inspect the burner(s) for damage or signs of
deterioration. Use a brush or compressed air to
remove any debris from the burner ports.
7. DO NOT install a damaged or badly corroded
burner, replace it.
8. Install the burner(s) making sure that the burner
gasket is not torn or deteriorated. If it is replace it.
9. Reassemble the unit following the removal steps in
reverse order.
Heat Exchanger Inspection - Figure 20
1. Close the manual shutoff valves in the gas supply
lines and turn off electrical power to the boiler/water
heater.
2. Remove the jacket front panels.
3. Disconnect gas piping at the ground joint union(s).
Also disconnect the pressure sensing lines, pilot
tubing and ignition and sensing leads.
4. Remove the upper partition panel, 1050 thru 2100
models.
5. Remove the 1/4 inch nuts and washers holding the
upper combustion chamber front panel in place and
carefully remove it.
6. Inspect the inside and outside of the heat exchanger
for signs of damage, sooting or corrosion.
7. The outside surfaces of the copper tubes should be
free of any soot deposits. A slight black smudge is
normal with some types of gases. Black soot
indicates poor combustion. Green deposits indicate
condensation due to low return water temperatures.
In either case the heat exchanger must be cleaned
thoroughly and the problem resolved before the
boiler/water heater is returned to service.
8. If there are no signs of damage, sooting or corrosion
reassemble the unit following the previous steps in
reverse order.
9. A badly corroded or damaged heat exchanger must
be replaced, see the
Heat Exchanger Removal
section.
