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SPECIFICATIONS
Model
Natural Gas Input
(Operating Range)
Propane Input
(Operating Range)
Gas Connection
Water Connection
Water Pressure*
Natural gas
Inlet Pressure
Propane
Inlet Pressure
Weight
Dimension
Ignition
Supply
Operation
Standby
Freeze-
Protection
Water heater category**
*40 psi or above is recommended for maximum flow.
**Water heater Category — water heaters of other than direct vent type, for outdoor installation, are divided into four
categories based on static pressure produced in the vent and flue loss.
Category I - a water heater that operates with a non-positive vent static pressure and with a vent gas temperature
that avoids excessive condensate production in the vent.
Category II - a water heater that operates with a non-positive vent static pressure and with a vent gas temperature
that may cause excessive condensate production in the vent.
Category III - a water heater that operates with a positive vent static pressure and with a vent gas temperature that
avoids excessive condensate production in the vent.
Category IV - a water heater that operates with a positive vent static pressure and with a vent gas temperature that
may cause excessive condensate production in the vent.
NOTE:
• Check the rating plate to ensure that this product matches your specifications.
• The manufacturer reserves the right to discontinue, or change at any time, specifications or designs
without notice and without incurring obligation.
140 Indoor
BTU/h
BTU/h
psi
(MPa)
inch W.C.
(kPa)
inch W.C.
(kPa)
lbs. (kg)
50 (22.5)
inch
mm
VAC / Hz
W / A
W / A
W / A
Category IV
4
Page
Installation Manual
140 Outdoor
Min.: 15,000
Max.: 120,000
Min.: 15,000
Max.: 120,000
1/2" NPT
3/4" NPT
15 - 150 (0.1 - 1.0)
Min. 4.0 (1.0)
Max. 10.5 (2.6)
Min. 8.0 (2.0)
Max. 14.0 (3.5)
H 21-3/4 x W 14 x D 9-1/4
H 552 x W 352 x D 236
Electric Ignition
120 / 60
53.9 / 0.7
3.2 / 0.05
223.9 / 1.94
Specifications
50 (22.5)
N/A
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