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ELECTRICAL
WIRING
After all electrical wiring is complete, set the thermostat
system
switch in the OFF position so that the compressor
will not run
and then apply power by closing the system main disconnect switch.
This wilt activate the compressor sump heat. Do not change the
Thermostat
System Switch until power has been applied
long
enough to evaporate
any liquid R-22 in the compressor.
It is
recommended that the sump heater be energized for eight (8) hours
prior to starting.
®
GROUND_
WIRE
JL
-y-
PI
ROWE R
L_,
)TYPICAL
2 STAGE
HEAT
THERMOSTAT
3
PH
POWER
UNIT
NOTE
I
YCZ-F FIELD WIRING DIAGRAM
PACKAGED
GAS-ELECTRIC
UNIT
I
UNIT CONTROL
BOX
""
IITHERMOSTAT
CONNECT
IONSI l
1
i____
36(BL )
B
I COMMON
Q
.......
47A(BK)
G
FAN
/F]_- ......
44A(YL)
Y
COMPRESSOR
FIRST
STAGE
'_
41A[BR)
Wl
HEAT F_RST STAGE
Z_
41C(BR)
W2 I HEAT SECOND STAGE
_-----55A(RD)
R
I 24V
"_
45A(YL)
Y2 .. COMPRESSOR SECOND STAGE
UNIT
LOW VOLTAGE AREA
ECONOMIZER
ACCESSORY
CONNECT
IONS
TO
ECONOMIZER
FACTORY
PROVIDED
F_ELD
INSTALLED
WIRES
I
I
I
I
_2!222222!2_
_
I
II I 1
LI I
36E_(BLI___
56B(BL) e
I I I
I--------
i
_
f_ ,
I
I
L--.--I--44--ELYL)--_TC
44AIYL) YI
',
,TA,°K,
'
tF"
I ........
E (OR)
111
2:::::
ON,;LOW
III
-,,c,oR, w2
TYPICAL
2-STAGE
THERMOSTAT
NOTES:
I. FUSED
DISCONNECT
SIZE,
POWER
WIRING
AND
GROUNDING
OF
EQUIPMENT
MUST
COMPLY
WITH
CODES.
2.
BE
SURE
POWER
SUPPLY
AGREES
WITH
EQUIPMENT
AND
HEATER
NAMEPLATE.
3.
LOW
VOLTAGE
WIRING
TO BE
18
AWG MINIMUM
CONDUCTOR,
4.
SEE
UNIT
DIAGRAM
FOR
ELECTRICAL
CONNECTION
DETAILS.
5.
THE
THERMOSTAT
ON THE
GAS/ELECTRIC
UNiT
MUST
PROVIDE
A
'G'
SIGNAL
IN
THE
COOLING
MODE
ONLY.
DURING
THE
HEATING
MODE
THE
FAN
WILL
BE
ENERGIZED
BY
THE
SYSTEM,
6.
FOR
SINGLE
STAGE
THERMOSTATS
JUMPER
Wt
AND
W2
TOGETHER.
SECOND
STAGE
HEAT
WILL
BEGIN
10
MINUTES
AFTER
FIRST
STAGE.
INTER-COMPONENT
WIRING
24V.
}
FACTORY
LINE
V.
WIRING
24V.
_
F_ELD
LINE
V,
WIRING
WIRE
COLOR
DESIGNATION
ABBR
COLOR
ABBR
COLOR
BK
BLACK
PR
PURPLE
BL
BLUE
RD
RED
BR
BROWN
WH
WHITE
GR
GREEN
YL
YELLOW
OR
ORANGEi
Page 17
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