Slant/Fin GG-75H Installation And Operating Instructions Manual page 7

GALAXY
WARNING—DANGER
Once you have begun vent damper installation procedure, DO
NOT restore electric power and gas supply until installation and
inspection have been completed (in order to prevent the main
burners from operating). DO NOT operate the boiler until the vent
damper harness is plugged into vent damper operator. Failure to
observe this warning may create a hazardous condition that could
cause an explosion or carbon monoxide poisoning.
B. 1. This device must be installed after the boiler draft hood
(between the draft hood outlet and the connector to the
outdoor chimney or vent) as close to the draft hood as
practicable, and without modification of the draft hood or
the vent damper. (See figure 1 and 2.)
2. The inlet size of the vent damper must be the same nomi-
nal trade size as the outlet of the draft hood.
3. This device must be located in a venting system or sec-
tion of a venting system so that it serves only the single
appliance for which it is installed. (See figure 3.)
4. Clearances of not less than 6 inches (152MM) must be
maintained from combustible materials, with provisions for
service access.
C. AFTER INSTALLATION:
1. Operate system through two complete cycles to check for
opening and closing in proper sequence, and proper burner
operation. DAMPER MUST BE IN OPEN POSITION
WHEN BOILER MAIN BURNERS ARE
OPERATING.
2. Perform installation checks as required by ANSI specifi-
cation Z21.66. (See Vent Damper Instructions.)
3. Check the troubleshooting section if problems arise with
the installation.
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