4
I. Pre-Installation .......................................9
II. Unpacking the Boiler ...........................10
III. Installation ............................................ 11
A. Venting ............................................ 11
B. Combustion Air ...............................17
C. Water Treatment ..............................19
D. Water Piping and Trim .................... 20
E. Gas Piping .......................................22
F. Electrical ......................................... 26
G. Modular Systems ............................33
Table of Contents
Minimum Clearance to Combustible Materials
Left Side Right Side Front Rear Top Flue Connector
6" 6" 24" 6" 6" 18"
* Recommended Clearance for Service *
Left Side or Right Side Front Rear Top
500 24" 24" 24" 16"
750 24" 24" 24" 16"
1000 24" 24" 24" 16"
1500 24" 24" 24" 19"
2000 24" 24" 24" 31"
2000S 24" 36" 36" 13"
2500 24" 36" 36" 20"
3000 24" 36" 36" 26.5"
* When 3 or more units are mounted side-by-side, front service clearance increases by 12"
and the rear service clearance increases by 24".
NOTE: Verify clearance with local codes.
H. Condensate Drains .......................... 43
IV. System Start-up ....................................44
V. Lighting Instructions ............................ 47
VI. Boiler Operational Sequence................49
VII. Service ..................................................51
VIII. Repair Parts .........................................57
IX. Thermal Solutions Boiler Control™ .......
(TSBC™) ............................................72
Warranty ................................ Back Cover
Net AHRI Ratings
1. The Net AHRI Water Ratings shown are based on a piping and pickup allowance of 1.15.
2. The manufacturer should be consulted before selecting a boiler for installations having unusual piping and pickup
requirements, such as intermittent system operation, extensive piping systems, etc.
3. The ratings have been determined under the provisions governing forced draft boiler-burner units.
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