Raypak 195A, 135A Installation Procedures, Coderequirements, Mountingbase, Clearancerequirements

3. INSTALLATION PROCEDURES

CODEREQUIREMENTS

Installation must be in accordance with local codes, or, in the absence of local codes, with the latest editions of the National Fuel Gas Code, ANSI Z223.1,/ NFPA 54, and the National Electrical Code, ANSI/ NFPA 70. In Canada installations must conform with the current CAN/CGA B149.1 or .2 and the Canadian Electrical Code Part 1 CSA C22.2 No.1. Where required by the authority having jurisdiction, the installa- tion must conform to American Society of Mechanical Engineers Safety Code for Controls and Safety Devices for Automatically Fired Heaters, No. CSD-1.

MOUNTINGBASE

Heater should be mounted on a level surface. Each heater is designed with a built-in sub-base approved for mounting the heater on combustible flooring. Heater must NOT be installed on carpet flooring.

Fig.# 8193.1

Fig.# 8196.0

NOTE: The heater should be located in an area where water leakage will not result in damage to the area adjacent to the appliance or to the structure. 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 air flow.

In addition, the heater shall be installed such that the gas ignition system components are protected from water (dripping, spraying, rain, etc.) during appliance

operation and service (circulator replacement, control replacement, etc.)

CLEARANCEREQUIREMENTS
1)	Minimum Clearances From Combustible Materials
Model		Floor	Front	Back		Right		Left	Top	Flue
No.										Vent
0090
0135		Comb.	Alcove		6"		6"	6"	16"	6"
0195
2)	A front clearance of at least 24" is recommended
	for adequate service of burner-tray and controls.
3)	Except for carpeted				flooring, heaters are certified
	for installation on combustible floors.
4)	For un-insulated hot water pipes, maintain a 2"
	clearance, or consult local authority having
	jurisdiction.

COMBUSTION/VENTILATION AIR

WARNING: Air supply to the heater room must not be affected by mechanical exhaust vents located in other parts of the house, such as kitchen or bathroom fans, or attic blowers. Mechanical exhaust vents may create a negative pressure condition in the heater room that can become a hazard of asphyxiation, explosion or fire.

CAUTION: Combustion air must not be contaminated by corrosive chemical fumes which can damage the heater. Measures must be taken to prevent the entry of corrosive chemical fumes to the combustion and venti- lation air supply. Such chemicals include, but are not limited to, chlorinated and/or fluorinated hydrocarbons such as found in refrigerants, aerosol propellants, dry- cleaning fluids, degreasers, and paint removers. Other harmful elements may come from bleaches, air freshen- ers, or mastics. Vapors from these types of products can form corrosive acid compounds when burned in a gas flame. The resulting acid condensate can damage or substantially reduce the life of the heater. It may be necessary to provide outside air directly to the heater in order to avoid this problem.

1)The heater must be provided with adequate supply of air for proper combustion and ventilation in accordance with Sec. 5.3, of the latest edition of the National Fuel Gas Code, ANSI Z223.1, or applicable provisions of the local building codes.

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