Raypak P926, P1826, P2100, P4001, 1287-1758, 2100-4001 manual Ventingconnections, Z223.1/NFPA

VENTINGCONNECTIONS

DRAFTHOOD(INDOOR)MODELS962-1826 Locate and assemble as shown below. Secure with

screws supplied in envelope in carton.

Fig # 8165

Models 2100-4001 have built-in drafthoods that must be properly vented to the outside.

VENT PIPING

WARNING:

Indoor heater requires a drafthood that must be connected to a vent pipe and properly vented to the outside. Failure to follow this procedure can cause fire or fatal carbon monoxide poisoning.

For protection against rain or blockage by snow, the vent pipe must terminate with a vent cap which complies with the local codes or, in the absence of such codes, to the latest edition of the National Fuel Gas Code, ANSI

Z223.1/NFPA 54.

The discharge opening must be a minimum of two feet vertically from the roof surface and at least two feet higher than any part of the building within ten feet. Vent stack shall be at least five feet in vertical height above the drafthood outlet. The vent cap location shall have a minimum clearance of 4 feet horizontally from, and in no case above or below, unless a 4-foot horizontal dis- tance is maintained, from electric meters, gas meters regulators and relief equipment.

The weight of the vent stack or chimney must not rest on boiler drafthood. Support must be provided in compli- ance with applicable codes. The heater top and draft hood must be readily removable for maintenance and inspection. Vent pipe should be adequately supported to maintain proper clearances from combustible construc- tion.

Type "B" double wall or equivalent vent pipe is recom- mended. However single wall metal vent pipe may be used as specified in the latest edition of the National Fuel Gas Code ANSI Z223.1/NFPA 54.

10' OR LESS

VENT CAP

2' MIN

2' MIN

5' MIN

VENT PIPE

Vent piping the same size or larger than the draft hood outlet is recommended, however, when the total vent height is at least ten (10) feet (drafthood relief opening to vent terminal), the vent pipe size may be reduced as specified in Chapter 10 of the National Fuel Gas Code, ANSI Z 223.1/NFPA 54 - latest edition. Avoid long horizontal runs of vent pipe and too many elbows. If installation requires horizontal or non-vertical runs, the vent pipe must have a minimum of 1/4 inch per foot rise and should be supported at not more than five foot intervals. Plumbers' tape, criss-crossed, will serve to space both horizontal and vertical piping. Gas vents supported only by the flashing and extending above the roof more than five feet should be securely guyed or braced to withstand snow and wind loads. We recom- mend use of insulated vent pipe spacer through the roofs and walls.

DRAFT HOOD

HEATER

Fig. #8119

At the time of removal of an existing heater, the following steps shall be followed with each appliance remaining connected to the common venting system placed in operation, while the other appliances remaining connected to the common venting system are not in operation.

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