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Tuesday
29
of
SOD
1998.
Faxination
->5123390477
Page
2
o£
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
Related Manuals for Honeywell NAHA003WK01
Summary of Contents for Honeywell NAHA003WK01
- Page 1 1998. Faxination ->5123390477 Page o£ t /ll INSTALLATION INSTRUCTIONS Twinning Kit NAHA003WK01 For Use With Furnace Models Using Honeywell ST9120 Electronic Fan Controls Please read these instructions completely before attempting installation. Twinning Kit Installation section for proper hookup of desired thermostat staging.
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Page 2: Installation
Tuesday 29 o£ Sep 1998. Faxination ->5123390477 Page 3 o£ Installation Procedures for the "G' and 'Y' connections only. Interconnect [_,e wir+ng from the C" connections at the terminal blocks Remove line power from both appliances before on each fan control. Note. - Page 3 Tuesday 29 o£ Sep 1998, Faxination ->5123390477 Page 4 :>£ _ Figure 1 Connection of Twinning Leads and Locating Isolation Relay On Furnace #1 Control Panel © Transformer ===:=' Ill ELECTRONIC II 1 CONTROL © Isolation Relay (SPST) _--Control Panel Drill Two 1/8"...
- Page 4 Tuesday 29 o£ Sep 1998. Faxination -75123390477 Page 5 of Figure 2 Proper Connection of Twinning Leads FURNACE FURNACE_ Bushings Splice, if required, to obtain neces-...
- Page 5 Tuesday 29 of Sop 1998, Faxination ->5123390977 PaEe 6 0£ Figure WALL THERMOSTA THERMOSTAT WIRING FOR SINGLE STAGE HEATING Z2 TO :":' Z1 TO Zt ELECTRONIC CONTROL FURNACE THERMOSTAT WIRING FOR TWO STAGE HEATING WALL THERMOSTAT Z2 TO Z2 Z1 TO Zt ELECTRONIC CONTROL CONTROL...
- Page 6 7 of Tuesday o£ 1998, Faxination ->51£3390477 Page Figure THERMOSTAT WIRING 81NGLE STAG | HEATINGANDTWO G@__...9.._ wj_. " THERMOSTAT Z2 TO Z2 Z1TOZl FF_TRONIO GON1TtO_ I ,_r FURNAGE ISOLATION RELAY WALL THERMOSTAT THERMOSTAT WIRING FOR TWO STAGE HEATING AND SINGLE STAGE COOLING Z2 TO Za Zl TO Z1 ;...
- Page 7 29 o£ 8 o£ Tuesday 1998, Faxination ->5123390477 Page Figure 5 WALL THERMOSTAT THERMOSTAT WIRING FOR SINGLE STAGE HEATING AND COOLING Z2 TO Z2 •ZI TO Z1 : ELECTRONIC CONTROL CONDENSER kSOLATI_N ELAY THERMOSTATWlRING I "Tw° rAQE CONDENSERS WALL THERMOSTAT Z2 TO Z2 Zl TO Zl ELECTRONIC...