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Installation & Service Manual
1 Determine unit location
NOTICE
Clearances from combustible construction
are noted on the appliance rating plate.
Location of unit
1. Locate the appliance so that if water connections should
leak, water damage will not occur. When such locations
cannot be avoided, it is recommended that a suitable
drain pan, adequately drained, be installed under the
appliance. The pan must not restrict combustion air
flow. Under no circumstances is the manufacturer to be
held responsible for water damage in connection with
this appliance, or any of its components.
2. The appliance must be installed indoors where it is
protected from exposure to wind, rain and weather.
3. The appliance must be installed so that the ignition
system components are protected from water (dripping,
spraying, rain, etc.,) during appliance operation and
service (circulator replacement, control replacement,
etc.,).
4. Appliances located in a residential garage and in adjacent
spaces that open to the garage and are not part of the
living space of a dwelling unit must be installed so that
all burners and burner ignition devices have a minimum
clearance of not less than 18" (46cm) above the floor.
The appliance must be located or protected so that it is
not subject to physical damage by a moving vehicle.
5. DO NOT install this appliance in any location where
gasoline or flammable vapors are likely to be present.
6. All units have been approved for alcove installation (an
ALCOVE is a closet enclosure without a front door).
7. The appliance must not be installed on carpet.
8. All units have been approved for use on combustible
surfaces.
9. Allow sufficient space for servicing pipe connections,
pump and other auxiliary equipment, as well as the
appliance.
Figure 1-1_Alcove installation, 90,000 - 180,000 Btu/hr
6"
RIGHT
24"
LEFT
24"
FRONT
6" REAR
14 "
TOP
24"
LEFT
24"
FRONT
29"
TOP
6"
REAR
6" RIGHT
Figure 1-2_Alcove Installation , 225,000 - 500,000 Btu/hr