Sterling TD User Manual
Air inlet kits, Installation instructions

AIK-IOM-1
J30-09444X9
Improper installation, adjustment, alteration,
service or maintenance can cause property damage, injury or
death. Read this supplement and the unit heater installation,
operation and maintenance instructions thoroughly before
installing or servicing this equipment.
03/14
Figure 1a – 5 Inch Air Inlet Kit
Figure 1b – 6 Inch Air Inlet Kit
260 NORTH ELM ST., WESTFIELD, MA 01085
TEL: (413) 568-9571 FAX: (413) 562-8437
www.mestek.com
KIT CONTENTS:
INSTALLATION INSTRUCTIONS
AIR INLET KITS
CATEGORY III VENTING FOR SEPARATED COMBUSTION
TUBULAR GAS FIRED DUCT FURNACES
USE 5" KIT FOR UNITS WITH CAPACITIES 100,000 TO 200,000 BTU/HR
USE 6" KIT FOR UNITS WITH CAPACITIES 250,000 TO 400,000 BTU/HR
Supplement to unit installation instructions – TDII
This Air Inlet Kit utilizes a 5 or 6 inch collar and gaskets to allow a tubular indoor duct
furnace to be converted to separated combustion. Included in the kit is a vent cap to
be placed at the termination of the new air inlet pipe. Note: a vent cap is also required
for the exhaust pipe termination and is available for purchase separately from this kit.
The location of the vent terminal must be in accordance with the National Fuel Code ANSI Z223.1 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.
#1 – Part No. 11J37R02222-002
(1) Vent
Cap
#2 – Part No. 11257R08567
(1) Air Inlet Collar – 5"
#3 – Part No. 11252R09198-001
(1) Air Inlet Collar Gasket – 5"
Also Included:
(1) Part No. J30-09444X9
Installation Instructions
(1) Part No. 11H03R03612-002
Tube of High Temp Silicone
Sealant
(1) Part No. 11262R08614-006
Access Panel Gasket –
86.75"
#1 – Part No. 11J37R02222-003
(1) Vent
Cap
#2 – Part No. 11257R08956
(1) Air Inlet Collar – 6"
#3 – Part No. 11252R09198-002
(1) Air Inlet Collar Gasket – 6"
Also Included:
(1) Part No. J30-09444X9
Installation Instructions
(1) Part No. 11H03R03612-002
Tube of High Temp Silicone
Sealant
(1) Part No. 11262R08614-007
Access Panel Gasket –
112.75"
1
2
3
D9460
1
2
3
D9461