Raypak RAYTHERM 0133-4001 User Manual

Page 7

OUTDOOR BOILERS

These boilers are designed certified for outdoor installation. Boilers must not be installed under an

overhang within three (3) feet from the top on the boiler. Three (3) sides must be open in the area under the
overhang. Roof water drainage must be diverted away from the boilers with the use of gutters.

The point from where the flue products exit the boiler must be a minimum of four (4) feet below, four (4) feet

horizontally from or one (1) foot above any door, window or gravity inlet to a building. The top surface of the boiler
shall be at least three (3) feet above any forced air inlet, or intake ducts located within ten (10) feet horizontally.

Fig. #8245

HIGH-WIND CONDITIONS (Outdoor Units Only)

In areas where high winds are frequent, it may be

necessary to locate the boiler a minimum of 3' from
high vertical walls, or install a wind break so the boiler
is not in direct wind current.

COMBUSTION AND VENTILATION AIR
(Indoor Units Only)

The boiler must have both combustion and venti-

lation air. Minimum requirements for net free air supply
openings are 12 inches from ceiling for ventilation and
12 inches from the floor for combustion air as outlined
in Z223.1 - latest edition and any local codes that may
have jurisdiction.

CAUTION: Combustion air must not be contaminated
by corrosive chemical fumes which can damage the
boiler and void the warranty.

a. All Air From Inside The Building:

Each opening shall have a minimum net free

square inches as noted:

Model Square Inches Model Square Inches

133

136

1125

1125

182/181

181

1223

1223

260/261

264

1336

1337

330/331

334

1468

1467

400/401

399

1631

1630

514

512

1826

1826

624

627

2100

2100

724

726

2500

2499

824

825

3001

3000

962

962

3500

3500

4001

4000

b. All Air From Outdoors:

When air is supplied directly from outside of build-

ing, each opening shall have a minimum net free
square inches as noted: