Copyright 2011 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.
KNCT -1011
manual
This instruction manual applie
s only to Hydrotherm
firmware version 3.4
on version 2.x control
boards. Current firmware is backwards compatible
with version 1.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 Hydrotherm firmware version 3.4
Also read and follow:
KN-Series Gas Boiler Installation
and Operating Instructions
Models KN-6 through KN-30
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