Raypak 206A Installation & Operating Instructions Manual Download

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VENT PIPING

Vent piping the same size as the drafthood outlet is recommended, however, when the total vent height is at
least 10 ft (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 Z223.1 (Canada - CAN/CSA-B149)

. As much as possible, avoid long

horizontal runs of vent pipe and too many elbows.  If installation requires horizontal runs, the vent pipe must have
a minimum of 1/4 in. per ft 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 recommend use of insulated vent pipe spacers through the roofs and walls. Another option for
installation that requires horizontal runs is using the D-2 power vent kit option.

The power vent assembly is a fan-assisted combustion system designed for application to models 206-407. The
unit, when installed as directed, is capable of operating in applications such as through-the-wall venting and
reduced horizontal and vertical vent pipe sizes in new and current installations. The unit is factory-wired for 240
VAC, with capability of rewiring for 120 VAC.

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 (Canada - CAN/CSA-B149).

B. All Air From Outdoors:

When air is supplied directly from outside of build-
ing, each opening shall have a minimum net free
area as noted:

COMBUSTION AND VENTILATION AIR
(Indoor Units Only)

The heater must have both combustion and ventilation air. Minimum requirements for net free air supply open-
ings are one opening that is 12 inches from the ceiling for ventilation, and one opening that is 12 inches from the
floor for combustion air as outlined in the latest edition of the National Fuel Gas Code, ANSI Z223.1(Canada-
CAN/CSA-B149) and any local codes that may have jurisdiction.

CAUTION:

Combustion air must not be contaminated by corrosive chemical fumes which can damage the

heater and void the warranty.

A. All Air From Inside The Building:

Each opening shall have a minimum net free area
as noted:

Model

Square Inches Model Square Inches

206/207

200

336/337

333

266/267

266

406/407

399

Model

Square Inches

206/207

266/267

336/337

406/407

100

WARNING:

Indoor heaters require 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.

Power Vent Kit

Model

120 VAC

Part No.

240 VAC

Part No.

206/207

010744

009832

266/267

010744

009832

336/337

010745

009833

406/407

010745

009833

Optional Raypak D-2

Power Vent

For more information consult the D-2 Power Vent manual, (Catalog No. 6000.57.1).

The  D-2  Power  Vent  oper-
ates with a positve vent stat-
ic  pressure  and  with  a  vent
gas  temperature  that  pre-
vents excessive condensate
production  in  the  vent,  and
as such, is a CATEGORY III
appliance.