AHRI APEX, Installation, Operating And Service Instructions

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I. Product Description, Specifications and Dimensional Data
(continued)
Table 2: Ratings
Apex Series Gas-Fired Boilers
Model
Number
Input (MBH)
Gross Output
(MBH)
Net Ratings Water
1
(MBH)
Thermal
Efficiency (%)
Combustion
Efficiency (%)
Min. Max.
APX425 80 399 375 326 94.1 94.5
APX525 100 500 475 413 95.0 95.0
APX625 125 625 594 516 95.0 96.0
APX725 145 725 689 599 95.0 95.0
APX825 160 800 760 661 95.0 93.0
Ratings shown are for installations at sea level and elevations up to 2000 ft. For elevations above 2000 ft., the boiler will naturally
derate by 2.5% for each 1000 ft. above sea level.
1
Net AHRI Water Ratings based on allowance of 1.15. Consult manufacturer before selecting boiler for installations having
unusual piping and pickup requirements, such as intermittent system operation, extensive piping systems, etc.
II. Unpacking Boiler
NOTICE
Do not drop boiler.
A. Move boiler
to approximate installed position.
B. Remove all
crate fasteners.
C. Lift and remove
outside container.
D. Remove boiler
from cardboard positioning sleeve
on shipping skid.
E. Move boiler
to its permanent location.