HONEYWELL NAHA003WK01 Installation Instructions Manual

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Brand: Honeywell

Category: Accessory

Type: Installation instructions manual for Honeywell NAHA003WK01

Pages: 8 (0.24 Mb)

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Tuesday 29 of SOD 1998. Faxination ->5123390477 Page 2 f
INSTALLATION
INSTRUCTIONS
_ t /ll L'I //I
Twinning Kit NAHA003WK01
For Use With Furnace Models Using
Honeywell ST9120 Electronic Fan Controls
Please read these instructions completely before attempting installation.
Electrical shock hazard/Fire and/or explosion
hazard.
Turn off electric power supply at disconnect
switch or service panel before starting instal-
lation.
Turn off gas supply at field installed manual
gas valve before starting installation.
Failure to follow this warning can result in
property damage, p_rsonal Injury and/or
death.
Installation or repairs made by unqualified per-
sons can result In hazards to you and others.
Installation MUST conform with local building
codes or, In the absence of local codes, with
the National Fuel Gas Code NFPA 54/ANSI
A223.1,1990 or latest edition. In Canada, Na-
tional Standard CAN/CGA B149-t.
The information contained in this manual is in-
tended for use by a qualified service techni-
cian familiar with proper safety procedures
and equipped with the proper tools and test
instruments.
Failure to carefully read and follow all Instruc-
tions in this manual can result In furnace real-
function, property damage, personal injury
and/or death.
This"tw_nning kit is intended to permit two identical gas
furnaces to be installed.connected to the same duct work
Air conditioning can be added by using one air conditioning
evaporator coil sized for the total air flow capabilities of the
two furnaces.
Single and Two Stage Heating
Single or two stage heating is obtainable using twinning kit
NAHA003WK01. Follow the instructions located in the
Twinning Kit Installation section for proper hookup of desired
thermostat staging.
Furnace Installation
Refer to the Installation Instructions packed with the
furnaces for information about clearances, start-up and
maintenance, gas piping and vent installation.
CAUTION
Furnaces installed MUST be identical. They
may be installed on a raised platform or wood
floor which MUST be level. When side return
is required, separate return air drops MUST
be madeto both furnaces. Do not use rear of
furnace for the return air duct connection.
CAUTION
Make sure blower motors are wired to
operate on the same speed tap.
CAUTION
Two furnaces must be plumbed with a single
supply gas shut off valve.
NOTE: When twinning kit has been installed, locate the
adhesive backed wiring diagram included in the kit and apply
next lo Ihe existing wiring diagrams in the furnaces.
TWINNING KIT INSTALLATION
The twinning kit contains (2) 36" wires of two differenl colors
to interconnect the electronic fan controls of the two
furnaces. For proper operation, and to avoid damage to
the controls, be sure to match Z1 to Z1 and Z2 to Z2 on
each fan control (see Figure 1) The wires are color coded
to assist with this connection. Each wire is factory
terminated with a specia_ crimped edge connector which wi_
push into mating connection positions on the edge of the
circuit board on each fan con:roL The length of these wires
can be extended by cutting and splicing sufficient additional
wire to each lead.
An isolation relay is provided to protect the system s
thermostat from possible overloading due to the combined
valve end control load of the two appliances.
Printed in U,S,A. 441 06 1003 01 (2;98)
replaces 441 06 1003 00 (10,97