Maintenance - RBI SERIES 8800 Installation & Operation Manual

Page 26

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 qualified
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
materials that have been identified as
carcinogenic or possibly carcinogenic to
humans when inhaled.
AVERTISSMENT: 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 qualifié 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 identifiés 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!
The boiler/water heater should be cleaned and inspected
once a year and 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 30 (8900) or page 39 (8800) for component
identification.
Combustion Chamber Inspection
1. Remove the left or right lower jacket end panel, item
5 or 24 (8900) or item 5 or 24 (8800).
2. Remove the upper end refractory brackets and
carefully remove the end refractory panel.
3. Inspect the combustion chamber, heat exchanger
and burner tray components for sign of corrosion
and/or deterioration.
4. Clean or replace components as required.
SERIES 8800 & 8900 INSTALLATION AND OPERATING INSTRUCTIONS
CAUTION: Improper burner servicing can result in
premature burner failure voiding the warranty.
Burner Drawer & Burner Removal
1. Close the manual shutoff valves in the gas supply
lines and turn off electrical power to the boiler/water
heater.
2. Disconnect the gas train from the gas supply piping
at the ground joint union, Figure 12.
3. Remove the flame roll-out shield, 8900 only.
4. Remove the two bolts that attach the burner drawer
to the base frame.
5. Disconnect the pilot tubing from the solenoid valve
and the ignition lead from the ignition control.
6. Pull the burner drawer out until the burners are fully
exposed.
7. Inspect each burner for damage or signs of
deterioration. Use a brush or compressed air to
remove any debris from the burner ports.
8. DO NOT install damaged or badly corroded burners,
replace them.
9. Install the burners making sure that they are
properly seated in the burner drawer.
10. Replace the burner drawer and flame roll out shield,
8900 only, following the removal steps in reverse
order.
Heat Exchanger Inspection & Cleaning
1. Close the shut off valves in the inlet and outlet
piping. Relieve the system pressure from the boiler
by carefully lifting the relief valve or opening the
drain valve.
2. Disconnect the boiler/water heater from the system
piping.
3. Remove the left and right headers and mounting
studs.
4. Remove the left & right upper and left & right lower
jacket end panels, items 5 & 24 (8900) or items 5
& 24 (8800).
5. Remove the left & right front corner trim panels,
8900.
6. Remove the flue collector front panel.
7. Remove the upper front refractory channel
assembly and front refractory panels.
8. Slide the heat exchanger out and thoroughly
inspect it.
9. 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 with water and the problem resolved
before the boiler/water heater is returned to service.
10. Replace the cleaned heat exchanger and other
components in the reverse order of their removal.