ASX7-4-Installation Instructions

ManualsBrandsSterling Manualsfurnaces heaters(GG Series 30-75) 4 in. Combustion Air Inlet Kit

Improper installation, adjustment, alteration, service or maintenance can cause

property damage, injury or death. Read this supplement and the unit heater installation,

operating, and maintenance instructions thoroughly before installing or servicing this equipment.

The location of the vent terminal must be in

accordance with the National Fuel Gas Code ANSI

Z223.1 (NFPA 54) in the U.S. or the Natural Gas

Installation Code CSA-B149.1 or the Propane

Gas Installation Code CSA-B149.2 in Canada.

Minimum clearances are shown in Table 1 and

Figures 4, 5 and 6.

This Combustion Air Inlet Kit utilizes one 4 inch

termination in which both the discharge ue gas

and the combustion air inlet pass.

KIT CONTENTS (Figure 1)

(#1) Part No. 11J37R08571-001

(1) Flue Vent Terminal

(#2) Part No. 11507R06601-DBL

(1) Combustion Air Inlet Box Assembly

(see Figure 2 for dimensional data)

(#3) Part No. 11J37R06665-DBL

(1) Air Inlet Screen

(#4) Part No. 11507R06693-DBL

(1) Deector Disk*

(#5) Part No. 11257R08331

(1) Inlet Air Collar - 4"

(#6) Part No. 11262R08332

(1) Inlet Air Collar Gasket

Also Included:

(1) Part No. J30-08579

Installation Instructions

(1) Part No. 11H03R03612-002

Tube of High Temp Silicone Sealant

(1) Part No. 11262R08614-004

Access Panel Gasket - 68.5"

(3) Part No. 11H03R09471-004

Gasket, O-ring - 4"

*Deector disk comes with brackets and screws for installation.

10/18

ASX7-4-IOM-8

J30-08579

Figure 2 - Combustion Air Inlet Box Dimensions

Figure 1 - Kit Contents

D8618B

INSTALLATION INSTRUCTIONS

4" COMBUSTION AIR INLET KIT

TUBULAR GAS FIRED DIRECT SPARK PROPELLER UNIT HEATERS

UNIT CONVERSION & CATEGORY III VENTING FOR SEPARATED COMBUSTION

For 30,000 to 75,000 BTU/HR

SUPPLEMENT TO UNIT INSTALLATION INSTRUCTIONS

GG-IOM & 5S6935

D6875C

Summary of content (8 pages)

PAGE 1
INSTALLATION INSTRUCTIONS ASX7-4-IOM-8 J30-08579 4" COMBUSTION AIR INLET KIT TUBULAR GAS FIRED DIRECT SPARK PROPELLER UNIT HEATERS UNIT CONVERSION & CATEGORY III VENTING FOR SEPARATED COMBUSTION For 30,000 to 75,000 BTU/HR SUPPLEMENT TO UNIT INSTALLATION INSTRUCTIONS GG-IOM & 5S6935 Improper installation, adjustment, alteration, service or maintenance can cause property damage, injury or death.
PAGE 2
VENTING* All unit heaters must be vented! All Venting installations shall be in accordance with the latest edition of Part 7, Venting of Equipment of the National Fuel Gas Code, ANSI Z223.1 (NFPA 54), or applicable provisions of local building codes. All venting of residential tubular unit heaters must comply with CSA International Requirements 10.96 U.S. for Unit Heaters for Residential Use (2nd Edition). Refer to notes* below for Canadian installations.
PAGE 3
VENTING - GENERAL GUIDELINES Vent connectors serving Category I and Category II heaters shall not be connected into any portion of mechanical draft systems operating under positive vent pressure. The following guidelines apply to all categories to follow. Table 1 Vent Systems Termination Clearance Requirements USA Door, window, or gravity vent inlet; combustion air inlet for other appliances CANADA 9 in. for 10,000 to 50,000 BTU/Hr input; 12 in. for input exceeding 50,000 BTU/Hr. 9 in.
PAGE 4
Table 2 Unit Size 030 045 060 075 Top/Bottom Right/Left Gasket Gasket Length (In) Qty Length (In) 18 3/8 2 12 3/8 18 3/8 2 12 3/8 18 3/8 2 15 7/8 18 3/8 2 15 7/8 Figure 3 - Access Panel Seal Qty 2 2 2 2 AIR INLET COLLAR Remove screen and mounting plate from air inlet on rear panel of unit by removing 4 screws. Secure inlet collar and gasket to inlet opening re-using the 4 screws removed in previous step. ACCESS PANEL SEAL Cut gasket to lengths listed in Table 2.
PAGE 5
Figure 5 - Horizontal Vent Termination Never use pipe other than 4 inch diameter. Never use PVC, ABS or any other nonmetallic pipe for venting! To do so may result in serious damage to the unit and or severe personal injury or death! Connect flue pipe and combustion air pipe from combustion air inlet box to unit following “Venting” instructions on pages 7 and 8. Joint between UL 1738 listed vent pipe and single wall vent pipe must be sealed with high temperature silicone sealant.
PAGE 6
VERTICAL TERMINATION Seal the space between the vent pipe and opening of combustion air inlet box using high temperature silicone sealant. Install deflector disk on UL 1738 listed vent pipe 2-1/2 inches above inlet air screen and fasten with screws. Seal joint between deflector disk and pipe with silicone sealant. Install vent terminal provided with kit on top of UL1738 listed vent pipe, fasten with screws and seal joint (see Figure 6).
PAGE 7
INSTALLATION - VENTING – CATEGORY III COMBUSTION AIR NOTICE: For optimum performance keep the combustion air system as straight as possible. Never operate unit heaters without combustion air and flue gas piping in place or severe personal injury or death may occur! 8. Each slip joint must be secured with at least three corrosion resistant screws. Two full turns of 3M #425 Aluminum Foil Tape or its equivalent must then be used to seal each joint.
PAGE 8
VENTING (continued) 6. The vent system must be installed to prevent collection of condensate. Pitch horizontal pipes downward 1/4 inch per foot (21mm per meter) toward the vent cap to facilitate drainage. Vertical vent pipes should be piped as depicted in Figure 7. 7. The equivalent length of the vent system must not be less than 5 feet (1.5m) and must not exceed 30 feet (9m). The equivalent length equals the total length of straight pipe plus 5 feet (1.5m) for each 90° elbow and 2.5 feet (0.