Copyright 2014 Mestek, Inc.
This manual is intended only for use by a qualified heating installer/technician. Read and follow this manual, all
supplements and related instructional information provided with the boiler. Install, start and service the boiler only
in the sequence and methods given in these instructions. Failure to do so can result in severe personal injury,
death or substantial property damage.
Do not use the boiler during construction. Construction dust and particulate, particularly drywall dust, will cause
contamination of the burner, resulting in possible severe personal injury, death or substantial property damage.
The boiler can only be operated with a dust-free air supply. Follow the instruction manual procedures to duct air to
the boiler air intake. If the boiler has been contaminated by operation with contaminated air, follow the instruction
manual guidelines to clean, repair or replace the boiler if necessary.
Affix these instructions near to the boiler. Instruct the building owner to retain the instructions for future use by a
qualified service technician, and to follow all guidelines in the User’s Information Manual.
V3
This instruction manual applies only to Advanced
Thermal Hydronics
firmware version 1.x on
version 3.x control boards. Current firmware is
backwards compatible with version 1.x & 2.x
boards, but some current features may not be
available. To replace firmware on an existing
boiler, contact the factory to obtain the original
firmware file or for assistance in applying current
firmware to an older version control board.
Control adjustment and operation instructions
for Advanced Thermal Hydronics firmware
version 1.8
KN-Series Gas Boiler Installation
and Operating Instructions
Series
Gas-fired direct vent
Cast iron boilers
Models:
KN -6, -10, -16, -20, -26, -30
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