Sterling SF User Manual

INSTALLATION AND SERVICE MANUAL

HCAK-IOM-3

J30-09025

HORIZONTAL COMBUSTION AIR INLET KITS

CATEGORY III VENTING FOR SEPARATED COMBUSTION

TUBULAR GAS FIRED UNIT HEATERS

USE 5 INCH KIT FOR UNITS WITH CAPACITIES 100,000 TO 250,000 BTU/HR USE 6 INCH KIT FOR UNITS WITH CAPACITIES 300,000 TO 400,000 BTU/HR

Supplement to unit installation instructions – STPIM or STBII

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.

This Combustion Air Inlet Kit utilizes one 5 or 6 inch termination in which both the discharge flue gas and the combustion air inlet pass.

The location of the vent terminal must be in accordance with the National Fuel Code ANSI Z223.1 (NFPA 54) in the U.S. or the Natural Gas Installation Code CSA-B149.1 or the Propane Gas Installation Cade CSA-B149.2 in Canada. Minimum clearances are shown in Table 1 and Figure 3.

KIT CONTENTS:

Figure 1a – 5 Inch Combustion Air Inlet Kit

#1 – Part No. 11J37R02222-002

(1) Flue Vent Terminal #2 – Part No. 11507R08560

(1) Combustion Air Inlet Box 1 Assembly (see Figure 2a

for dimensional data) #3 – Part No. 11J37R08572

(1) Air Inlet Screen

#4 – Part No. 11507R08569

(1) Defl ector Disk

Also Included:		2
(1)	Part No. J30-09025
	Installation Instructions
(1)	Part No. 11H03R03612-002
	Tube of High Temp Silicone
	Sealant

D8981B

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Figure 1b – 6 Inch Combustion Air Inlet Kit

#1 – Part No. 11J37R02222-003
(1)	Flue Vent Terminal
#2 – Part No. 11507R08951
(1)	Combustion Air Inlet Box	1
	Assembly (see Figure 2b
	for dimensional data)	4
#3 – Part No. 11J37R08957
(1)	Air Inlet Screen
#4 – Part No. 11507R09012		3
(1)	Defl ector Disk
Also Included:		2
(1)	Part No. J30-09025
	Installation Instructions
(1)	Part No. 11H03R03612-002
	Tube of High Temp Silicone
	Sealant
		D9014B

	260 NORTH ELM ST., WESTFIELD, MA 01085
	TEL: [phone] FAX: [phone]
08/13	www.mestek.com

DIMENSIONAL DATA

Figure 2a – 5 Inch Combustion Air Inlet Box Assembly

5.75" 8"

(146.1mm)	(203.2mm)

15"

(381mm)

	5"
12"	(127mm)	5"
(304.8mm)		(127mm)

D9015B

Figure 2b – 6 Inch Combustion Air Inlet Box Assembly

6.75"

10"

(254mm)

(171.45mm)

			17.125"
			(435mm)
	6"
14.125"	(152.4mm)	7.125"
			D9016B
(358.8mm)		(181mm)

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VENTING – GENERAL GUIDELINES

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. Refer to notes* below for Canadian installations.

CARBON MONOXIDE! Your venting system must not be blocked by any snow, snow drifts, or any foreign matter. Inspect your venting system to ensure adequate ventilation exists at all times! Failure to heed these warnings could result in Carbon Monoxide Poisoning (symptoms include grogginess, lethargy, inappropriate tiredness, or flu-like symptoms).

When an existing heater is removed or replaced in venting system, the venting system may not be properly sized to vent the attached appliances. An improperly sized vent system can cause formulation of condensate or leakage or spillage of flue gases.

The following steps shall be followed with each appliance connected to the venting system placed in operation, while any other appliances connected to the venting system are not in operation:

1.Seal any unused openings in the venting system.

2.Inspect the venting system for proper size and horizontal pitch, as required in the National Fuel Gas Code, ANSI Z223.1 (NFPA 54) and these instructions. Determine that there is no blockage or restriction, leakage, corrosion and other

defi ciencies, which could cause an unsafe condition.

3.In so far as practical, close all building doors and windows and all doors between the space in which the appliance(s) connected to the venting system are located and other spaces of the building. Turn on clothes dryers and any exhaust fans, such as range hoods and bathroom exhausts, so they shall operate at maximum speed. Do not operate

a summer exhaust fan. Close fireplace damper.

4.Follow the lighting instructions. Place the appliance being inspected in operation. Adjust thermostat so that the appliance will operate continuously.

5.After it has been determined that each appliance connected to the venting system properly vents when tested as outline above, return doors, windows, exhaust fans, fi replace dampers,

and any other gas-burning appliance to their previous condition of use.

6.If improper venting is observed during any of the above tests, the venting system must be corrected immediately so that the system conforms with the National Fuel Gas Code, ANSI Z223.1 (NFPA 54). When resizing any portion of the venting system, the venting system should be resized to approach the minimum size as determined using the appropriate tables in Appendix G of the National Fuel Gas Code, ANSI Z223.1 (NFPA 54).

The unit heater shall be connected to a factory built chimney or vent complying with a recognized standard, or a masonry or concrete chimney lined with a lining material acceptable to the authority having jurisdiction.

Venting into an unlined masonry chimney is prohibited.

ADDITIONAL REQUIREMENTS FOR CANADIAN INSTALLATIONS

*The following instructions apply to Canadian installations in addition to installation and operating instructions.

1.Installation must conform with local building codes, or in the absence of local codes, with current CSA-B149.1, Installation Codes for Natural

Gas Burning Appliances and Equipment, or CSA-B149.2, Installation Codes for Propane Gas Burning Appliances and Equipment.

2.Any reference to U.S. standards or codes in these instructions are to be ignored and the applicable Canadian standards or codes applied.

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