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Safety Devices
Noise Level Range
HI〜LOW＝38〜31dB
TYPE
SPECIFICATIONS FOR VENT SIZES
S Thin Walls Mobile Home
Wood Walls
Wood/Brick
Brick/Block
Special
3
"−4 1/2"
(75−115)mm
4 1/2"−9 1/2"
(115−240 )mm
9 1/2"−15 3/4"
(240−400 )mm
15 3/4"−23 5/8"
(400−600 )mm
23 5/8"−31 1/2"
(600−800 )mm
A
B
C
D
3 1/8
" (80mm)
13ft., 2 90°bends (4m, 2 90°bends)
Combustion Method
Air Supply Exhaust
Radiation Method
Forced combustion
Closed Type
Forced convection
Wall Penetration
Hole
Max. Extended
AIR SUPPLY/
EXHAUST PIPE
Flame failure – Flame rod
Over heat – Bi-metal switch, thermal fuse, thermistor
Power failure – PCB
Power surge – 3 Amp. fuse
Fan delay – Micro computer timer
Pre-purge – Combustion fan, pre-purge timer, spark sensor
Room over heat – Automatic cut off at 104°F after 10 minutes
** BTU - Efficiency increases with vent length. Clearances from combustibles (See page 3).
** Thermal efficiency rating determined under continuous operating conditions, and was determined
independently of any installed system.
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