Ratings - Cadet 40-120 Installation And Service Manual

Ratings

Cadet Heating Boiler
Input
Model Number
MBH
Note: Change
(Note 5)
"N" to "L" for
L.P. gas models.
Min
CDN040 9
CDN070 14
CDN100 20
C(C,D)(N)120 24
Maximum allowed working pressure is located on the rating plate.
NOTICE
Notes:
1. As an Energy Star Partner, the manufacturer has determined
that Cadet heating boilers meet the Energy Star guidelines
for energy efficiency.
2. The ratings are based on standard test procedures prescribed
by the United States Department of Energy.
3. Net AHRI ratings are based on net installed radiation of
sufficient quantity for the requirements of the building
and nothing need be added for normal piping and pickup.
Ratings are based on a piping and pickup allowance of 1.15.
4. Cadet heating boilers require special gas venting. Use only
the vent materials and methods specified in the Cadet
Heating Boiler Installation and Operation Manual.
5. Standard Cadet heating boilers are equipped to operate from
sea level to 4,500 feet only with no adjustments. The boiler
will de-rate by 4% for each 1,000 feet above sea level up to
4,500 feet.
6. High altitude Cadet heating boilers are equipped to operate
from 3,000 to 12,000 feet only with no field adjustments.
The boiler will de-rate by 2% for each 1,000 feet above 3,000
feet. High altitude models are manufactured with a different
control module for altitude operation, but the operation
given in this manual remains the same as the standard
boilers. A high altitude label (as shown in FIG. A) is also
affixed to the unit.
6
A
S
M
E
H
AHRI Rating
Net
AHRI
Heating
Ratings
Capacity
Water,
MBH
MBH
(Note 2, 8
(Note 3, 8)
Max
40 37 32
70 65 57
100 93 81
120 112 97
Installation & Service Manual
Other Specifications
AFUE
%
Boiler Water
Content
Connections
Gallons
(Note 1, 8)
.3
94.0
.4
94.0
.5
94.0
94.0 .6
7. The Cadet heating boiler input rate, on some models, is
reduced for vent lengths beyond the minimum. Models
CD(N,L)070 and CD(N,L)100 with 2" vent will reduce
1% for every 10 feet of vent. Models CD(N,L)120 with
3" vent will reduce 0.5% for every 10 feet of vent.
8. Ratings have been confirmed by the Hydronics Institute,
Section of AHRI.
9. The manual reset high limit provided with the Cadet is
listed to UL353.
UNIT EQUIPPED FOR
HIGH ALTITUDE
3,000 FT. TO 12,000 FT.
Figure A High Altitude Label Location
LOW LEAD CONTENT
Vent/Air
Water Gas
Size
Connections
(Note 4)
3/4" 1/2" 2"
1" 1/2" 2"
1" 1/2" 2"
1" 1/2" 3"
IMG00206