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CONTENTS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PAGE
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2,3
Installation Requirements:
Boiler Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Boiler Foundation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Chimney Requirements . . . . . . . . . . . . . . . . . . . . . . . . 4
Minimum Clearance . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Draft Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Vent Piping. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Vent Damper Installation . . . . . . . . . . . . . . . . . . . . 5,6,7
Gas Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Electrical Controls and Wiring . . . . . . . . . . . . . . . . . . . 8
Boiler Room Air Supply and Ventilation . . . . . . . . . . . . 8
Water Piping at Boiler . . . . . . . . . . . . . . . . . . . . . . . . . 8
Operating Instructions:
Filling and Venting Water Systems. . . . . . . . . . . . . . . . 8
Initial Start, Safety and Lighting Instructions . . . . . 9,10
Burner Adjustment, Checking Gas Input . . . . . . . 10,11
Care and Maintenance
General Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . 11
Water Level Check. . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Annual Inspection and Cleaning. . . . . . . . . . . . . . . . 12
Safety Check for Control Systems . . . . . . . . . . . . . . . 12
Protection from Freezing/Water Treatment. . . . . . . . . 12
Keeping Area Clear . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Sequence of Operations. . . . . . . . . . . . . . . . . . . . . . . . . 13
Wiring Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14,15
Pump or Valve Zoning of Water Boilers . . . . . . . . . . . . . 16
Troubleshooting Guide . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Piping a Heating-Cooling System. . . . . . . . . . . . . . . . . . 18
Replacement Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Appendix A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
HOT WATER MODELS S-34 THROUGH S-150
and SX-150 THROUGH SX-210
“S” AND “SX” MODELS
INSTALLATION AND OPERATING INSTRUCTIONS
GAS-FIRED CAST-IRON BOILERS FOR NATURAL AND L.P. PROPANE GASES
SENTRY
IMPORTANT
READ ALL OF THE FOLLOWING WARNINGS AND
STATEMENTS BEFORE READING THE
INSTALLATION INSTRUCTIONS
WARNING
LIQUEFIED PETROLEUM (L.P.)
PROPANE GAS-FIRED BOILERS
Installation location ONLY as permitted in paragraph enti-
tled "LIQUEFIED PETROLEUM (L.P.) PROPANE GAS-
FIRED BOILER LOCATION" on page 4 of this instruction
book.
The above warning does not apply to
NATURAL gas-
fired boilers.
The installation must conform to the requirements of the
authority having jurisdiction or, in the absence of such
requirements, to the National Fuel Gas Code, ANSI
Z223.1-latest edition. The installation must also conform
to the additional requirements in this Slant/Fin Instruction
Book.
In addition, where required by the authority having jurisdic-
tion, the installation must conform to American Society of
Mechanical Engineers Safety Code for Controls and Safety
Devices for Automatically Fired Boilers, No. CSD-1.If there
is any conflict in the above requirements, then the more
stringent requirement will apply.
This manual must be left with owner and should be hung
on or adjacent to the boiler for reference.
WARNING
This boiler, gas piping and accessories must be installed,
connected, serviced and repaired by a trained, experi-
enced service technician, familiar with all precautions
required for gas-fired equipment and licensed otherwise
qualified, in compliance with the authority having jurisdic-
tion.
®
Printed in U.S.A.605 PUBLICATION S-40
Part No. 46-0528 Rev. N
Heating Contractor
Address
Phone Number
Boiler Model Number
Boiler Serial Number
Installation Date