Bryant BW9, Инструкция по установке, запуску и эксплуатации

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PROCEDURE 4—PERIODICALLY DURING HEATING SEASON
Where low water cut-offs are used, a periodic inspection of the low water cut-off is necessary, including flushing of float type devices. Refer to
low water cut-off manufacturer’s specific instructions.
PROCEDURE 5—END OF EACH HEATING SEASON — ANNUAL SHUT DOWN PROCEDURE
1. Follow instructions
″
To Turn Off Gas To Appliance.
″
2. If heating system is to remain out of service during freezing weather, and does not contain antifreeze, drain system completely. If boiler
will be exposed to freezing temperatures, drain condensate lines. Otherwise, do not drain system or boiler.
PROCEDURE 6—ANNUAL EXAMINATION AND CLEANING OF BOILER COMPONENTS
WARNING: Disconnect electrical power to unit. Turn off gas supply to unit at the gas supply shutoff. Failure to do so
could result in fire, personal injury, property damage, or death.
NOTE:
The following service procedures must be performed only by a qualified service agency. Boiler owner should not attempt these
procedures.
1. Before servicing, turn off electrical power to boiler at service switch. Close manual gas valve to turn off gas supply to boiler.
2. Flue passages between boiler sections are examined by removing 8 sheet metal screws and the inspection plate on the left side jacket panel,
and then removing the 20 socket head cap screws and the exposed cleanout cover plate on the boiler sections, being careful to not damage
the gasket. Refer to repair parts diagram, boiler block and piping assembly. The procedure for examining and cleaning the burner is also
described below.
a. Any buildup of sediment or aluminum oxide (white powdery or flaky substance) in the flue passages must be cleaned as follows:
b. Remove jacket front and top panels. Disconnect condensate drain line from the barbed fitting on the bottom of the boiler. Keep the open
end of the drain line above the water level in the condensate trap to prevent the trap from draining. Disconnect pressure switch hose from
barbed fitting on gas valve. Disconnect 1-1/2-in.x 2-in. flexible coupling from air inlet. Disconnect air by-pass (1/2-in. transparent vinyl
tube) from the bottom of the mixer.
c. Remove air baffle from 1-1/2-in. X 2-in. flexible coupling and clean air baffle if necessary. Refer to repair parts diagram, mixer and
pressure switch assembly.
d. Confirm that manual gas valve is closed and disconnect gas line to gas valve at union. Disconnect wires to gas valve and igniter.
e. Loosen but do not remove 5 nuts attaching mixer assembly to boiler. Remove 2 igniter screws and very carefully remove the igniter.
NOTE:
Loosening the mixer assembly nuts will aid in igniter removal.
CAUTION: Use care when removing the igniter, it is very brittle!
f. Remove 5 nuts and remove mixer assembly. Remove burner and mixer gasket.
g. Aluminum oxide deposits are water soluble and may be rinsed away with spraying or running water. Before rinsing, connect a 1/2–in.
I.D. hose to the barbed fitting on the bottom of the boiler and run the hose to a bucket or drain.
h. Use a flexible handle nylon brush to loosen sediment and aluminum oxide on all heating surfaces of boiler. Refer to the repair parts
diagrams.
i. After brushing and rinsing, remove any remaining loosened sediment using a shop vacuum with a snorkel attachment.
j. Inspect burner for any foreign matter in the flame ports or inside the burner. Any foreign matter should be removed by blowing with
compressed air or vacuuming.
k. Inspect interior of mixer for any signs of sediment or aluminum oxide and clean if necessary.
l. Reinstall burner and mixer gasket and position mixer assembly over studs. Install 5 nuts but do not tighten. Reinstall igniter and igniter
gasket and fasten with 2 screws. Use care when installing the igniter. It is very brittle! Tighten 5 nuts holding mixer assembly.
m. Connect:
(1.) Gas line to gas valve.
(2.) Condensate drain line to boiler.
(3.) Pressure switch hose to gas valve.
(4.) Air by-pass to mixer.
(5.) 1-1/2-in. X 2-in. flexible coupling to air inlet and make sure to put air baffle back to correct position.
(6.) Igniter wires.
(7.) Gas valve wires.
n. Install cleanout cover plate and gasket. Fasten with screws.
o. Install inspection plate and fasten with screws.
3. Visually inspect condensate lines leading from the boiler sections and the vent tee to the condensate trap. Refer to repair parts diagrams.
Any foreign material or debris that is visible in the condensate lines needs to be cleaned out as follows:
a. Raise condensate trap and drain condensate lines completely.
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