Operating instructions
82
Specifications - Boiler
Fuel
DOE Heating
Capacity
Btu/h (kW)
Note1 & 4
Modulation
Input
B
tTU/H (kW)
Note 4
DOE
Seasonal
Efficiency AFUE
Note 3
Net Boiler
IBR Rating
B
TUH (kW)
Note 2
23 000 (6,7)
to
84 000 (24,6)
94%
Shipping
Weight
Lbs (Kg)
6
6 (30)
Natural
or
Propane
Natural
or
Propane
Natural
or
Propane
Model
CC 85
CC 105
CC 125
65 000
(19,3)
110,000
94 000
(27,8)
75 000
(22,3)
29 000 (8.5)
to
106 000 (31)
94%
73 (33)
82 000
(24,3)
96 000
(28,4)
110 000
(32,8)
33 000 (9,7)
to
124 000 (36,3)
94%
80 (36)
Ê
Note 1: The heating capacity of the CHALLENGER
CC 85/105/125 is based on the test require-
ments of the U.S. Department of Energy.
Note 2: The IBR rating is based on a piping and pick
up allowance of 1.15. This allowance should
be sufficient for the standard radiation
requirements for a building load.
Note 3: Based on the given AFUE the CHAL-
LENGER CC 85/105/125 meets the energy
efficiency guidelines established by Energy
Star.
Note 4: Input and output ratings are shown for sea
level applications. The CHALLENGER
automatically derates the input at approxi-
mately 2% for every 1,000 Ft. of altitude. No
alterations to the appliance or burner system
are required.
The following efficiency performance is achieved when the CHALLENGER is operated as
a Boiler according to ASHRAE 103 test procedure
NOTICE










