Owner manual

8
GPH = U.S. Gallons per Hour
Mbh = 1000 Btu (British thermal units) per hour.
psi = Pounds per square inch
*MAWP = Maximum allowable working pressure. This low pressure oil red hot water boiler is constructed and
hydrostatically tested for maximum working pressure of 65 psi in accordance with the latest revision of the A.S.M.E.
(American Society of Mechanical Engineers) Boiler and Pressure Vessel Code Section IV Standards for heating boilers.
AFUE= Annual Fuel Utilization Efciency
Heating Capacity and AFUE based on 13.1% CO
2
(13.5% CO
2
at 0.95 GPH and 1.10 GPH), -0.02” w.c. draft in breech, and
# 1 smoke or less. Testing is done in accordance with U.S. DOE (Department of Energy) test procedure.
Heating Capacity indicates amount of heat available after subtracting losses up the stack. Remaining heat is available
to heat water. Small portion is heat from jacket and surfaces of boiler and this heat stays in structure. Net AHRI rating
represents portion of remaining heat applied to heat radiation or terminal units (i.e. nned 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 system and offsetting heat losses from system piping. Net
AHRI ratings shown are based on piping and pickup factor of 15% in accordance with AHRI Standard as published by
Hydronics Institute.
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. Consult manufacturer before selecting boiler for
installations having unusual piping and pickup requirements.
4 - RATINGS & CAPACITIES
Table 1 RATINGS & CAPACITIES
OIL-FIRED HOT WATER BOILERS
Number
of
Sections
Firing
Rate
[GPH]
Input
[Mbh]
Heating
Capacity
[Mbh]
Net
AHRI
Rating
[Mbh]
*MAWP
Water
[psi]
AFUE
[%]
Min. relief
Valve
Capacity
[Mbh]
Max.
Water
Temp
[°F]
Chimney
Liner Size
Round
[Inches]
Chimney
Liner
Size
[Square
Inches]
Flue
Size
[Inches]
4 0.75 105 91 79 65 86.0 91 250 6 6 3/4 5
4 0.95 133 114 99 65 85.0 115 250 6 6 3/4 5
4 1.10 154 132 115 65 84.0 132 250 6 6 3/4 5
5 1.00 140 122 106 65 86.5 122 250 6 6 3/4 5
5 1.15 161 139 121 65 85.0 139 250 6 6 3/4 5
5 1.35 189 161 140 65 84.0 161 250 7 6 3/4 5
6 1.30 182 159 138 65 86.5 159 250 6 6 3/4 5
6 1.45 203 176 153 65 85.0 176 250 7 6 3/4 5
6 1.65 231 198 172 65 84.0 198 250 7 6 3/4 5
7 1.65 231 201 175 65 86.0 201 250 7 6 3/4 6
7 1.80 252 217 189 65 85.0 217 250 7 6 3/4 6
7 1.90 266 228 198 65 84.0 227 250 8 6 3/4 6