Operating instructions
LOCATING THE BOILER
NOTE: This unit MUST be set on a concrete or other non-combustible material base or floor.
1. Select level location as centralized with piping system and as near chimney as possible.
2. Place crated boiler at selected location. Remove crate by pulling crate sides from top and bottom boards. When boiler is to be installed on
a combustible floor, a combustible floor base must be used.
This boiler must NOT be installed on carpeting.
3. Boiler is to be level. Metal shims may be used under base legs for final leveling.
4. The floor supporting boiler must be non-combustible. If it is combustible, place the boiler on a factory-approved combustible floor base.
We use a 2-in. Cladlite™ pad as a combustible floor base. These are available from your local supplier. Use a minimum 24-in. X 30-in.
pad for 2-5 section boilers and a minimum 30-in. X 30-in. pad for 6-7 section boilers. The boiler must be centered on combustible floor
base.
5. Additional clearances for service may exceed clearances for fire protection. Always comply with the minimum fire protection clearances
shown on the unit. An 18-inch clearance should be maintained on any side where passage is required to access another side for cleaning,
servicing, inspecting or replacement of any part that may need attention. An 18-inch clearance is recommended on the control side for
servicing.
6. Determine boiler room size. Rooms that are large in comparison with the size of boiler are defined as rooms having a volume equal to or
greater than 16 times the volume of the boiler. Where room ceiling height is greater than 8 ft, volume of room shall be figured on the basis
of 8 ft ceiling height. Determination of room size should be based on total volume of all gas fired equipment installed in that room. (See
Table 1.) Refer to Section 6.3 of NFGC, Central Heating Boilers and Furnaces for further information, including approved methods for
reducing clearances in large rooms.
7. Table 2 shows minimum clearances from combustible materials.
8. Equipment shall be installed in a location in which the facilities for ventilation permit satisfactory combustion of gas, proper venting, and
maintenance of ambient temperature at safe limits under normal conditions of use. Equipment shall be located so as not to interfere with
proper circulation of air. When normal infiltration does not provide necessary air, outside air shall be introduced as described in Fresh Air
for Combustion section.
9. Advise owner to keep air passages free of obstructions. Ventilation and combustion air must enter boiler room without restrictions.
10. The boiler shall be installed such that the automatic gas ignition system components are protected from water (dripping, spraying, rain , etc.)
during appliance operation and service (condensate trap, control replacement, etc.).
Table 1—Room Large In Comparsion With Boiler
BOILER SIZE
(SECTIONS)
BOILER VOLUME
(CU FT)
MINIMUM ROOM
VOLUME REQUIRED
TO BE LARGE
ROOM
(CU FT)*
2 3.8 61.6
3 5.4 86.6
4 7.0 111.6
5 8.5 136.6
6 10.1 161.7
7 11.7 186.7
8 13.2 211.7
9 14.8 236.7
* For room with single boiler only.
Table 2—Minimum Clearances From Combustible Materials and For Servicing
PART OF BOILER
ALCOVE OR ROOM NOT LARGE IN COMPARISON
WITH BOILER (IN.)
ROOM LARGE
IN COMPARISON
WITH BOILER (IN.)
2—5 Sections 6—9 Sections 2—9 Sections
Top 666
Rear 666
Control Side 8246
Opposite Control Side 6246
Front 18 18 18
Flue/Vent Connector 666
Boiler Piping 111
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