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Safety Devices
Noise Level Range
HI LOW 38 32dB(A)
TYPE
SPECIFICATIONS FOR VENT SIZES
S Thin Walls Mobile Home
Wood Walls
Wood/Brick
Brick/Block
Special
3
" 4 1/2"
(75 115mm)
4 1/2" 9 1/2"
(115 240mm)
9 1/2" 15 3/4"
(240 400mm)
15 3/4" 23 5/8"
(400 600mm)
23 5/8" 31 1/2"
(600 800mm)
A
B
C
D
3 1/8
" (80mm)
(4m, 2 bends) 13ft., 2 bends
Combustion Method
Air Supply Exhaust
Radiation Method
Forced combustion
Closed Type
Forced convection
Wall Penetration
Hole
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 Extension. Clearances from combustibles see pages 3 and 18.
** Thermal efficiency rating determined under continuous operating conditions, and was determined
independently of any installed system.
Max. Extended
Length