Owner's manual

3
Table 1 - SEA LEVEL RATINGS (NATURAL AND PROPANE GASES)
Model
Input
(MBH)
(1)
Heating Capacity
(MBH)
(1)(2)
Net AHRI Rating
(MBH)
(1)
Shipping Weight
(lbs.)
AFUE
(2)
125 125 113 98 284 90.0
150 150 134 117 284 90.0
175 175 158 137 284 90.0
200 200 180 157 284 90.0
(1)
1 MBH = 1,000 Btuh (British Thermal Units Per Hour)
(2)
AFUE (Annual Fuel Utilization Efciency) and Heating Capacity is based on Department of Energy test procedure.
1 -BOILER RATINGS & CAPACITIES
20 1/8”
(511mm)
40 1/4”
(1022mm)
32 5/16”
(820mm)
25 1/4”
(641mm)
4 7/16
(113mm)
Opening for Air Vent
and Expansion Tank
Connection
Standard
Supply & Return Openings
1 1/4 NPT Connections
Provided Inside Boiler
Cabinet
Junction Box for 120 VPower &
24 V Thermostat Leads
Gas Supply
Opening
(1/2” NPT)
Left Side
Vent Tee
(2” CPVC)
Condensate Drain
Fitting (1/2” PVC)
Leveling Feet
Right Side
Back
Vent Connection
(2” CPVC)
Combustion Air Intake
Fitting (2” PVC)
Front
Opening for Relief
Valve Discharge Pipe
6 1/4”
(199mm)
Figure 1 - Boiler Jackets
These low pressure gas-red hot water boilers are design certied by CSA International, for use with natural and propane
gases.
Boilers are constructed and hydrostatically tested for maximum working pressure of 50 psi (pounds per square inch)
in accordance with A.S.M.E. (American Society of Mechanical Engineers) Boiler and Pressure Vessel Code, Section IV
Standards for heating boilers.
Boilers are certied in accordance with ANSI (American National Standards Institute) Z21.13 standards as gas-red, direct
vent, condensing, hot water boilers.
Heating Capacity indicates amount of heat available after subtracting losses up the stack. Most of this heat is available
to heat water. Small portion is heat loss from jacket and surfaces of boiler, it is assumed this heat stays in the structure.
Net AHRI Rating represents portion of remaining heat applied to heat radiation or terminal units (i.e. Finned tube
baseboard, cast iron radiators, radiant oor, etc.). Difference between Heating Capacity and Net AHRI Rating, called piping
and pickup allowance, establishes reserve for heating volume of water in the system and offsetting heat losses from
piping. Net AHRI Ratings shown are based on piping and pickup factor of 1.15. Net AHRI Rating of boiler selected should
be greater than or equal to calculated peak heating load (heat loss) for building or area(s) served by boiler and associated
hot water heating systems. Manufacturer should be consulted before selecting boiler for installations having unusual
piping and pickup requirements.