CONTENTS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PAGE
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2,3
Installation Requirements:
Boiler Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Boiler Foundation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Chimney Requirements . . . . . . . . . . . . . . . . . . . . . . . . 4
Minimum Clearance . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Vent Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Vent Damper Installation . . . . . . . . . . . . . . . . . . . . . . . 5
Gas Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Electrical Controls and Wiring. . . . . . . . . . . . . . . . . . 6-9
Boiler Water Temperature Control. . . . . . . . . . . . . 10-11
Sequence of Operation . . . . . . . . . . . . . . . . . . . . . . . 12
Boiler Room Air Supply and Ventilation . . . . . . . . . . . 13
Water Piping at Boiler . . . . . . . . . . . . . . . . . . . . . . . . 13
Operating Instructions:
Filling and Venting Water Systems. . . . . . . . . . . . . . . 13
Initial Start:
Safety Information and Lighting Instruction . . . . . . . . 14
Burner Adjustment, Checking Gas Input . . . . . . . 14-15
Care and Maintenance
General Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . 15
Water Level Check . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Annual Inspection and Cleaning . . . . . . . . . . . . . . . . 16
Safety Check for Control Systems . . . . . . . . . . . . . . . 16
Protection from Freezing/Water Treatment. . . . . . . . . 16
Keeping Area Clear . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Troubleshooting Guide . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Piping a Heating-Cooling System . . . . . . . . . . . . . . . . . . 18
Replacement Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Appendix A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
HOT WATER MODELS S-34 THROUGH S-150
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, experienced
service technician, familiar with all precautions required for
gas-fired equipment and licensed otherwise qualified, in
compliance with the authority having jurisdiction.
®
Printed in U.S.A. 812 PUBLICATION S-41
Part No. 46-0602
Heating Contractor
Address
Phone Number
Boiler Model Number
Boiler Serial Number
Installation Date
This manual must be left with
o
wner and should be hung on or
adjacent to the boiler for reference.
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