3DJH
If unit coil cannot be mounted away from prevailing
winter winds, a wind barrier should be constructed.
Size barrier at least the same height and width as out-
door unit. Mount barrier 24 inches (610 mm) from the
sides of the unit in the direction of prevailing winds.
ELECTRICAL
Wiring must conform with the National Electric Code
(NEC) and local codes. An application diagram is in-
cluded in this instruction and in indoor unit instruc-
tions.
Refer to unit rating plate, located on the control box
cover, for minimum circuit ampacity and maximum
fuse size.
1- Provide line voltage power supply to unit from a
properly sized disconnect switch. Location of dis-
connect switch should be easily accessible and
within sight of the unit.
2-- Route power and ground wires from disconnect
switch to unit. Electrical openings are provided
under the control box cover. See unit dimension
illustration on page 2.
3-- Remove control box cover and connect power wir-
ing to contactor. Connect ground wire to ground
lug.
4-- Install room thermostat (ordered separately) in
the conditioned area. Locate thermostat where it
will not be affected by sunlight, drafts or vibra-
tion. Do not install thermostat on an outside wall.
A position approximately 5 feet (1524 mm) from
the floor and near the center of the conditioned
area is most desirable.
5- Route 24VAC control wires from the thermostat to
indoor unit and from indoor unit to pigtail leads of
the outdoor unit as shown in figure 4.
FIGURE 4
FIELD WIRING DIAGRAM FOR HP23 UNIT
W2
C
W1
G
O
Y1
T
S1 THERMOSTAT
1
LOW VOLTAGE
FIELD INSTALLED
1
EMERGENCY HEAT RELAY (USED ONLY IF
OUTDOOR TSTAT IS USED) FIELD PRO-
VIDED AND INSTALLED NEAR INDOOR
UNIT 24VAC 5VA MAX NEC CLASS 2.
2
NOTE--ALL REMAINING WIRES FACTORY INSTALLED
3
4
HP23
LOW VOLTAGE
PIGTAIL LEADS
THERMOSTAT HEAT ANTICIPATION SET-
TING .4 AMP ELECTRIC HEAT FOR THER-
MOSTATS WITH ADJUSTABLE ANTICI-
PATORS.
WHEN TWO--STAGE THERMOSTAT IS
USED, CONNECT SECOND--STAGE HEAT
BULB TO TERMINAL W2 AND REMOVE
JUMPER BETWEEN TERMINALS R AND
W2.
IF OUTDOOR THERMOSTAT IS USED, RE-
MOVE JUMPER BETWEEN TERMINALS
R AND W2.
R
L
Y2
E
BLACK
(COMMON)
BEIGE
(ELECTRIC
HEA
T)
ORANGE
(REVERSING
VA
LVE)
YELLOW
(COMPRESSOR)
RED
(POWER)
TB1 TERMINAL STRIP
(INDOOR UNIT CONTROL BOX)
C
G
W1
W2
W3
R
4
BROWN
(SER
VICE
LIGHT)
PURPLE
(AMBIENT
SENSOR
S23
EM
HEA
T
RELA
Y
K26
OUTDOOR
THERMOSTAT
(IF USED)
USED ONLY WHEN OPTIONAL SERVICE
LIGHT AND AMBIENT SENSOR ARE
USED. CONNECTIONS SHOWN ARE FOR
G.E. OR HONEYWELL THERMOSTAT.
5
5
5
2
3
