Lennox International Inc GWB9-100IH-2, GWB9-075IH-2 Boiler Installation, Locating The Boiler

BOILER INSTALLATION

Locating The Boiler

1.Place crated boiler as close to selected location as possible and un-crate boiler. Boiler may be moved into position with appliance dolly or 2 wheel hand truck. Insert dolly or hand truck under left hand side of boiler. It is possible to slide boiler for short distance on smooth floor or surface.

1.Select level location central to piping systems served and as close to vent and air intake terminals as possible.

2.Accessibility clearances, if more stringent (i.e. larger clearances) than required fire protection clearances, must be used for boiler installation. Accessibility clearances may be achieved with the use of removable walls or partitions.

3.Boiler is approved for installation in closets and on combustible floors. This boiler shall NOT be installed on carpeting.

4.Clearances shown in Table 4 indicate required clearances. Maintain minimum 1” clearance between combustible construction and each of left, top and back surfaces of the boiler. Minimum 11” clearance is required on right side, to allow room for induced draft blower. Maintain 18” clearance at side where passage is required to access another side for cleaning or servicing, inspection or replacement of parts. Allow 24” at front and left side and 8” at top for servicing. No clearances are required to venting or combustion air intake piping.

5.Install equipment in location which facilitates operation of venting and combustion air intake piping systems as described in this manual.

6.Advise owner to keep venting and combustion air intake passages free of obstructions. Both venting and combustion air intake piping systems connected to outdoors must permit flow through piping systems without restrictions for boiler operation.

7.Install boiler such that the automatic gas ignition system components are protected from water (dripping, spraying, rain, etc.) during operation and service (circulator replacement, condensate trap, control replacement, etc.).

Combustion Air And Vent Pipe Requirements

This boiler requires a dedicated direct vent system. In a direct vent system, all air for combustion is taken directly from outside atmosphere, and all flue products are discharged to outside atmosphere.

Terminate combustion air and vent pipe connections in same atmospheric pressure zone, through roof or sidewall (roof termination preferred). See Figure 12 thru Figure 14, pages 24 and 25 for required clearances.

•Keep boiler area clean of debris and free of flammable and combustible materials, vapors and liquids.

•When vent pipe is exposed to temperatures below freezing, such as when it passes through an unheated space or when chimney is used as a raceway, vent pipe must be insulated with 1/2” Armaflex or equivalent.

In extreme cold climate areas, use ¾” Armaflex or equivalent.

!WARNING

Solvent cements are combustible. Keep away from heat, sparks, and open flame. Use only in well ven- tilated areas. Avoid breathing in vapor or allowing contact with skin or eyes. Failure these instructions could result in fire, personal injury, or death.

•Combustion air must be clean outdoor air. Combustion air must not be taken from inside structure because that air frequently is contaminated by halogens, which include fluorides, chlorides, phosphates, bromides and iodides. These elements are found in aerosols, deter- gents, bleaches, cleaning solvents, salts, air fresheners, paints, adhesives and other household products.

•Locate combustion air inlet as far away as possible from swimming pool and swimming pool pump house.

•All combustion air and vent pipes must be airtight and watertight. Combustion air and vent piping must also terminate as shown in “Combustion Air and Vent Pipe” section.

•Vent connections serving appliances vented by natural draft shall not be connected into any portion of mechanical draft systems operating under positive pressure.

Table 4 -	Required Clearances
	Combustible	Accessibility,
Unit		Cleaning, and
	Clearance	Servicing
Top	1” (26mm)	8” (204mm)
Left Side	1 “ (26mm)	24” (610mm)
Right Side	11” (280mm)	-
Base	1” (26mm)	-
Front	1” (26mm)	24” (610mm)
Back	1” (26mm)	-
Intake/Vent Piping	0 (0)	-
Near Boiler Hot	1” (26mm)	-
Water Piping

All distances measured from the cabinet of the boiler.

9