9
2'-0" (.610 M) MINIMUM CLEARANCE
ABOVE OR BEYOND THE HIGHEST
STRUCTURE OR SURFACE WITHIN
10'-0" (3.046 M) OF THE VENT
ADDITIONAL EXHAUST VENT PIPING (NOT SUPPLIED) 4" (10.2CM) I.D.
SINGLE WALL 26 GAUGE (.044 CM) MINIMUM GALVANIZED SHEET METAL PIPE
(SEAM TO BE AT TOP) (OR OTHER FACTORY-APPROVED MATERIALS)
VENT PIPING MUST NOT EXCEED AN EQUIVALENT OF 35 LINEAR FT.
(10.7 M) FOR 40 TO 125 MBTUH (12-37 KW) OR 40 LINEAR FT.
(12.2 M) FOR 130 TO 200 MBTUH (38-59 KW). NO MORE THAN
2 ELBOWS MAY BE USED. A 90° ELBOW IS EQUIVALENT TO 10 LINEAR
FT. (3.0 M). A 45° ELBOW IS EQUIVALENT TO 5 LINEAR FT. (1.5 M).
WALL BRACE
USE APPROPRIATE FASTENER (NOT SUPPLIED)
FOR ATTACHING TO BUILDING MATERIAL
(3) 90° BRACES
EQUALLY SPACED
4" (10.2 CM)
WALL VENTING KIT
ACCESSORY
ADD NON-COMBUSTIBLE SUPPORT (NOT SUPPLIED)
EVERY 5 OR 6 FEET (1.5 OR 1.8 M) APART AND
ADEQUATE FOR THE PIPING WEIGHT.
FOR COMBUSTIBLE WALLS ONLY
USE A 2" (5.1 CM) CLEARANCE NON-COMBUSTIBLE
VENTILATING METAL THIMBLE (NOT SUPPLIED)
FOR NON-COMBUSTIBLE WALLS ONLY
4.250" (10.8 CM) DIA. HOLE FOR 4" (10.2 CM)
O.D. PIPE ADD NON-COMBUSTIBLE PROTECTION
AROUND THE HOLE IF NECESSARY
MAINTAIN 18 INCH (46 CM) MINIMUM CLEARANCE TO
COMBUSTIBLES FOR ENTIRE LENGTH OF PIPING
FOR ALL INDOOR JOINTS, USE RTV SEALANT TO PREVENT HOT
FLUE GAS LEAKAGE INTO THE BUILDING (USE A SHEET METAL
PIPE AND CRIMPER FOR JOINING IDENTICAL SIZE SHEET METAL PIPES)
USE THREE (3) #6 SHEET METAL SCREWS (SMS) PER VENT PIPE JOINT.
THE VENT PIPE SEAM SHOULD BE ON TOP WITH ONE SMS ON TOP
AND ONE SMS 120 DEGREES FROM THE TOP ON EACH SIDE.
INTERNAL TUBE
CLAMP STOP
(NOT SHOWN)
4" (10.2 CM) VENT PIPE
ADAPTOR
(FACTORY ACCESSORY)
TIGHTEN NUTS A HALF TURN AT A TIME, IN A
2,3,4,1 SEQUENCE UNTIL THE FLANGES OF THE
CLAMP TOUCH AND 65 FT-LBS. (88 NM) IS
ACHIEVED AT EACH NUT TO ASSURE PROPER
SEATING OF THE CLAMPS INNER SLEEVE.
TUBE CLAMP
ALWAYS NEAREST
THE BURNER
HANGER
TUBE CLAMP
DO NOT PINCH THE HANGER
BETWEEN THE FLANGES!
HOOK OF HANGER
MUST BE CLOSED
1
2
3
4
OPTIONAL COMMON VENTING
THROUGH ROOF OR WALL
BOTH HEATERS MUST BE CONTROLLED BY
A SINGLE THERMOSTAT
NEVER USE A STRAIGHT
THROUGH TEE
4" X 4" X 5" Y-COUPLER
[10.2 X 10.2 X 12.7 CM]
(OPTIONAL ACCESSORY)
4" (10.2 CM)
WALL VENT CAP
ALTERNATE
ACCESSORY
OVERVIEW DRAWINGS (2 OF 2)
CAUTION
• The first twenty (20) feet (6.1 m) of radiant tube extending from the burner
MUST be installed straight.
• There is one exception. A U-Tube heater may have a 180-degree U-bend
interposed AFTER the first ten (10) feet (3.0 m).
• Electrical wiring diagrams can be found in the ELECTRICAL SUPPLY
AND THERMOSTATIC CONTROL section.
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