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ELECTRICAL
CONNECTIONS
Make
wiring
connections
to the unit
as indicated
on enclosed
wiring
diagram.
As with
all gas appliances
using
electrical
power,
this furnace
shall
be connected
into a permanently
live electric
circuit.
It is recommended
that
furnace
be provided
with
a
separate
"circuit
protection
device"
in the electric
circuit.
The
furnace
must
be electrically
grounded
in accordance
with
local
codes
or in the absence
of local
codes
with
the National
Electrical
Code,
ANSI/NFPA
70 or CSA C22.1
Electrical
Code,
if an
external
electrical
source
is utilized.
The
integrated
furnace
control
is polarity
sensitive.
The hot leg of the
120V
power
supply
must
be connected
to the black
power
lead as indicated
on the
wiring
diagram.
Provision
for hooking
up an electronic
air
cleaner
and
or humidifier
is provided
on the
integrated
control.
Reler
to the
SERVICE
FACTS
literature
and
unit
wiring
diagram
attache(|
to flwnace
diagram
attache(|
to flwnace.
1 STAGE
HEAT
ONLY
THERMOSTAT
7VITH FAN SWITCH)
%
SEE
NOTE
3
TWINNING
CONNECTION
DIAGRAM
FOR TWINNING
1 STAGE FURNACES WITH
SINGLE WIRE TWINNING
FEATURE
1 STAGE HEATING ONLY THERMOSTAT
FURNACE
NO. 1
[_
....
_SOLATIONRELAY
(FIELDSUPPLIED}
SEE NOTE4
--u-
FURNACE
NO. 2
BLOWER
OPERATION
OF
UNITNO 2 _S SYNCROmZED
WITH
UNIT
NO
I VIA
SIGNALS
FRO_a TWIn CONNECTION
SEE NOTE 4
%
l
RI;_ i
SEE NOTE 4
80TH
FU_A4{ES
_ $T _E PO#'ERED FRO_r
i
54!
i,_V
# 0
C I%U
T PM[
NSURF 24Y
FURNACf
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#
PHA$
PRIOR
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THFR_OSTAT
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From Dwg. 21B341422
Rev. 3
1 STAGE
OUTDOOR
UNIT
HEATING
/ COOLING
¢TITH
TRANSFORMEF
THERMOSTAT
TWINNING
CONNECTION
DIAGRAM
FOR TWINNING
1 STAGE FURNACES
WITH
SINGLE WIRE TWINNING
FEATURE
1 STAGE HEAT/I
STAGE COOL THERMOSTAT
,
o I
_SOtAT_ON
RELAY
[_
(FIELU SUPPUEU /
SEENOTE S
I
F
OUTDOOR UNIT
[_
(NO TRANSFORMER)
: : 2 _ -
[3
I
i,
•
"!
FURNACE NO 2
BLOWER
OPE_TION
OF
UNIT NO2_S SYNCaONZED
WTH
UNIT
NO
I VIA
S GNALS
FROM
_V]N
CONNECTION
SEE NOTE 4
%
4
X
_OH #dRtdAC_SuO'5? B£ PO_'L_9 uO*#
*L
51#E iS/
£(;
OF CiR_OH PA,_£
_$OL4_Ot_ _ELAY _UST _g _t_ST4LLED
;_0
_U_>R _0 • _% P/L¢I ¸ _Ji_
if_Ar
(R_
;,
$UC" AS RL_O_75 ; SEE ALL CO#_,ECT_O#
]# CbrR_E@T EXCEEDSTHERMOSTAT C URREncY
,CO,'_,_C_O_M4t¸ _
If_O_,'_
i0i_ H_C_PO_/C
N
R
}OMPONi
NT
',i',,JR]N(3
2q
v,
_.
i: ]El
1}
----
K Z
,/
'_ ilt'_ TFP ]
C"
,*_
,L_
....
j
P4
'v'.
A
_Y
--
NE
"
k,¢Vil::_
NG
From Dwg. 21B341423
Rev. 2
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