Raypak 122-322 Outdoor Installations, Front View, Top View, Heater, Min. Clearance, Recommended

￿￿￿	￿￿	￿￿		￿￿
			FRONT VIEW

TOP VIEW

Fig. 7: Minimum Clearances from Combustible Surfaces—Indoor Installations

When installed according to the listed minimum clear- ances from combustible construction, these heaters can still be serviced without removing permanent structural construction around the heater. However, for ease of servicing, we recommend a clearance of at least 24 in. in front, and at least 36 in. on the water connection side. This will allow the heater to be serv- iced in its installed location without movement or removal of the heater.

Service clearances less than the minimums may require removal of the heater to service either the heat exchanger or the burner tray. In either case, the heater must be installed in a manner that will enable the heater to be serviced without removing any structure

around the ￿￿￿heater. ￿￿￿

Outdoor Installations

These heaters are design-certified for outdoor installa- tion. Heaters must not be installed under an overhang unless clearances are in accordance with local instal- lation codes and the requirements of the gas supplier. Three sides must be open in the area under the over- hang. Roof water drainage must be diverted away from heaters installed under overhangs.

Heater	Min. Clearance	Recommended
	from Combustible		Service
Side
	Surfaces		Clearance
Front	Open			24”
Rear	12”			24”
Water Side	36”			36”
Other Side	36”			36”
Top	Unobstructed			36”
Vent	N/A			N/A
	￿￿￿
Table E:	Clearances – Outdoor Installations

Fig. 8: Minimum Clearances from Combustible Surfaces—Outdoor Installations

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