41
Rev. 2
PRODUCT DESIGN
ELECTRICAL WIRING
WARNING
To avoid the risk of electrical shock, wiring to the unit
must be properly polarized and grounded.
WARNING
To avoid electrical shock, injury or death, disconnect
electrical power before changing any electrical wir-
ing.
The wiring harness on this unit is furnished as an integral
part of the furnace. Field alteration to comply with electrical
codes should not be required.
LINE VOLTAGE WIRING
Power supply to the furnace must be N.E.C. Class 1, and
must comply with all applicable codes. The furnace must be
electrically grounded in accordance with the local codes or,
in their absence, with the latest edition of the National Elec-
trical Code, ANSI/NFPA No. 70, and/or the CSA C22.1 Elec-
trical Code. A fused disconnect should be provided and sized
in accordance with the unit maximum overcurrent protec-
tion.
The ground wire must run all the way back to the electri-
cal panel. This will provide more reliable sensing of flame.
LINE VOLTAGE CONNECTION OF OPTIONAL HUMIDI-
FIER AND ELECTRONIC AIR CLEANER
The Integrated ignition control used on the "A & C" model
(SSE) furnaces, "D" model (SV) furnace, "S" model (SEE II)
furnace, and "V" model (SEE IIQ) model furnace is equipped
with line voltage accessory terminals for connection of field
supplied humidifiers, and/or electronic air cleaners.
Accessory Load Specifications
Humidifier
Electronic Air Cleaner
1.0 Amp maximum at 120 VAC
1.0 Amp maximum at 120 VAC
Accessory Installation. Follow the electronic air cleaner
and humidifier manufacturer's instructions for mounting and
electrically grounding these accessories. Check that the
power supply to the furnace has been disconnected. Wire
the accessories to the furnace control module as shown in
the following diagram. All connections to the control module
are to be made through 1/4 (.250") receptacle (female) ter-
minals.
If it is necessary for the installer to supply additional line
voltage wiring to the inside of the furnace, the wiring must
comply with all local codes. This wiring must have a mini-
mum temperature rating of 105°C. and must be routed away
from the burner compartment. All line voltage splices must
be made inside the furnace junction box. The following draw-
ing illustrates the wiring of optional accessories to the con-
trol module.
Co
o
l
He
a
t L
o
He
a
t Hi
Li
ne
T
ran
sf
or
m
e
r
Ci
rc
I
n
p
u
t
EAC
Hu
m
Li
ne
T
ran
sf
or
m
e
r
C
ir
c
u
lat
or
EAC
Hu
m
Air Cleaner
Humidifier
Control Module
Hot 120 VAC
Neutral 120 VAC
Optional
Accessories
{
Optional Accessory Wiring
Accessory Operation. The furnace control module ener-
gizes the humidifier whenever the combustion blower is en-
ergized (if there is an optional air cleaner on the system, the
humidifier is not energized until the air cleaner is energized).
The control module energizes the air cleaner whenever the
air circulation blower is energized.
The Integrated ignition control used on "B" model (SV) fur-
naces do not feature accessory terminals for a humidifier or
electronic air cleaner. If adding an optional accessory hu-
midifier, or electronic air cleaner to "B" model (SV) furnaces,
refer to the installation instructions shipped with the furnace.
Содержание GCIA045A30
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