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CONNECTION DIAGRAM
L2
460 3Ø
L1
PO WER
SUPPLY
L3
ALERT!
(NOTE #11)
EQUIP GND
*CH
BLK
BLK
or
or
RED
RED
BLK
BLK
*HPS
*LPS
YEL
BLU
YEL
DR
OF1
LOGIC
OF2
**
50
30
C Y O W2 R
CB
YEL
WHT
RED
BLK
ORN
C
Y
O
W2
R
E
L
W3
G
C
Y
O
W2
R
E
L
G
-LEGEND-
FACTORY POWER WIRING
FIELD POWER WIRING
FACTORY CONTROL WIRING
FIELD CONTROL WIRING
CONDUCTOR ON CIRCUIT
BOARD
COMPONENT CONNECTION
1/4 - INCH QUICK CONNECT
TERMINALS
FIELD SPLICE
JUNCTION
CAP
CAPACITOR (DUAL RUN)
CRANKCASE HEATER
*CH
COMP
COMPRESSOR
CONTACTOR
CONT
CB
CIRCUIT BOARD
DEFROST THERMOSTAT
DFT
DR
DEFROST RELAY AND
CIRCUITRY
*DTS
DISCHARGE TEMP. SWITCH
HIGH PRESSURE SWITCH
*HPS
*LPS
LOW PRESSURE SWITCH
OUTDOOR FAN MOTOR
OFM
OFR
OUTDOOR FAN RELAY
REVERSING VALVE
RVS
SOLENOID
* MAY BE FACTORY OR FIELD INSTALLED.
BLU
T2
CONT
BLK
T1
BLK
21
11
YEL
23
13
YEL
OFR
BRN
BLK
OFM
1
3
BRN
BRN
YEL
YEL or BLU
Y
T1
YEL
C
BRN
ORG
C
O
ORG
ORG
or
90
BLK
DFT
PNK
PNK
R
BLK
or
HK32EA001
PNK
**
BOARD MAY HAVE 60
AS MIDDLE SELECTION
INDOOR UNIT
TERMINAL BLOCK
INDOOR THERMOSTAT (NOTE #5)
NOTES:
1. Compressor and fan motor furnished with
inherent thermal protection.
2. To be wired in accordance with National
Electric Code (N.E.C.) and local codes.
3. N.E.C. class 2, 24V circuit, min. 40 VA required.
4. Use copper conductors only, from disconnect
to unit.
5. Must use thermostat and sub-base as stated
in pre-sale literature.
6. If indoor section has a transformer with a
grounded secondary, connect the grounded
side to "C" on the circuit board.
7. If any of the original wire, as supplied, must
be replaced, use the same or equivalent wire.
8. Check all electrical connections inside control
box for tightness.
9. Do not attempt to operate unit until service
valves have been opened.
10. It is imperative to connect 3Ø field power
to unit with correct phasing. The Phase
Rotation Monitor will not allow the contactor
to be energized if thephasing is not correct.
If phasing is reversed, simply interchange any two
of the three power connections on the field side.
11. Use conductors suitable for at least 75ºC (167ºF).
CAUTION
1. Compressor damage may occur if system is over
charged.
2. This unit is factory charged with R-22 in accordance
with the amount shown on the rating plate. The
charge is adequate for most systems using
matched coils and tubing not over 15 feet long.
The best performance will be achieved when the
unit operates with a suction gas superheat at the
compressor inlet of 5 ºF at normal rating conditions
of the air conditioning and refrigeration, institute
(ARI). This chart may be used to approximate the
charge if ARI rating conditions cannot be obtained.
ARI rating conditions are equivalent to DOE test "A"
conditions. See product data literature for required
indoor air flow rates and for use of line lengths over
15 Ft.
3. Relieve pressure and recover all refrigerant before
system repair or final unit disposal. Use all service
ports and open all flow-control devices, including
solenoid valves.
Fig. 7—Label Wiring 327415-101
SCHEMATIC DIAGRAM (LADDER FORM)
COMP
T3
CAP
EQUIP
YEL
GND
O
O
W2
R
R
Y
Y
C
RVS
ORG
or
90
BLK
FIELD SELECTED TIME PERIOD
**
50
BETWEEN DEFROST CYCLES (MINUTES)
30
DFT
SPEED
JUMPERED TEST PINS (USE METAL OBJECT), FIELD SPEED-UP CYCLE
BLK
UP
or
PNK
COOLING ONLY
PROCEDURE
1. Operate unit a minimum of
10 minutes before checking
charge.
2. Measure suction pressure
by attaching a gage to
suction valve service port.
3. Measure suction temperature
by attaching an accurate
thermistor type or electronic
thermometer to the suction
line at service valve.
4. Measure outdoor air dry-bulb
temperature with a
thermometer.
5. Measure indoor air (entering
indoor coil) wet bulb
temperature with a sling
psychrometer.
6. Refer to table I. Find out-
door temperature and
evaporator entering air wet-
bulb temperature at this
intersection note the super-
heat.
7. Refer to table II. Find super-
heat temperature located in
step 6 and suction pressure,
at this intersection note
suction line temperature.
8. If unit has a higher suction
line temperature than charted
temperature, add refrigerant
until charted temperature
is reached.
9. If unit has a lower suction
line temperature than charted
temperature, remove and
recover refrigerant until
charted temperature is
reached.
10. If outdoor air temperature
or pressure at suction valve
changes, charge to new
suction line temperature
indicated on chart.
11. This procedure is valid when
indoor air flow is within
+/- 21% of its rated cfm.
8
L1
COMP
CONT
T2
T3
T1
21
11
OFM
CAP
OFR
1
3
23
C
RVS
OF1 DR
DFT
DFT
DR
T1
*LPS
*HPS
*DTS
HEAT CYCLE:
90 MIN. ACCELERATED TO 21 SEC.
60 MIN. ACCELERATED TO 14 SEC.
**
50 MIN. ACCELERATED TO 12 SEC.
30 MIN. ACCELERATED TO 7 SEC.
DEFROST CYCLE:
10 MIN. ACCELERATED TO 2 SEC.
TABLE I - SUPERHEAT CHARGING TABLE
(SUPERHEAT ºF AT LOW-SIDE SERVICE PORT)
EVAPORATOR ENTERING AIR ºF WB.
OUTDOOR
50
52 54 56 58 60 62 64 66 68 70 72 74 76
TEM P °F
55
9
12
14
17
20
23
26
29
60
7
10
12
15
18
23
23
27
65
-- 6
10
13
16
19
21
24
13
19
70
-- -- 7
10
16
21
75
-- -- -- 6 9 12 15 18 21 24 28 31 34 37
80
-- -- -- -- 5 8 12 15 18 21 25 28 31 35
85
-- -- -- -- -- -- 8 11 15 19 22 26
90
-- -- -- -- -- --
5 9 13 16 20 24 27 31
95
--
--
--
--
--
--
--
6
100
-- -- -- -- -- -- --
--
105
--
--
--
--
--
--
--
--
110
--
--
--
--
--
--
--
-- --
115
-- --
--
--
--
--
--
-- -- --
TABLE II - REQUIRED SUCTION TUBE TEMPERATURE ºF
(MEASURED AT LOW-SIDE SERVICE PORT)
SU PERHEAT
SUCTION PRESSUR E AT SERVICE PORT PSIG.
TEMP. °F 61.5
64.2
67.1
70.0
73.0
0
35
37
39
41
43
37
39
41
43
45
2
4
39
41
43
45
47
6
41
43
45
47
49
8
43
45
47
49
51
10
45
47
49
51
53
47
49
51
53
55
12
14
49
51
53
55
57
16
51
53
55
57
59
18
53
55
57
59
61
20
55
57
59
61
63
22
57
59
61
63
65
59
61
63
65
67
24
26
61
63
65
67
69
28
63
65
67
69
71
30
65
67
69
71
73
32
67
69
71
73
75
69
71
73
75
77
34
36
71
73
75
77
79
38
73
75
77
79
81
40
75
77
79
81
83
327415-101 REV. B
L2
L3
CONT
13
CH
OF2
OFR
LOGIC
C
CONT
32
35
37
40
42
45
30
33
35
38
40
43
27
30
33
36
38
41
24
27
30
33
36
39
33
30
10
14
18
22 25
29
8 12 15 20 23 27
5 9 13 17 22 26
6
11
15
20
25
8
14
18
23
76.0
79.2
82.4
85.7
45
47
49
51
47
49
51
53
49
51
53
55
51
53
55
57
53
55
57
59
55
57
59
61
57
59
61
63
59
61
63
65
61
63
65
67
63
65
67
69
65
67
69
71
67
69
71
73
69
71
73
75
71
73
75
77
73
75
77
79
75
77
79
81
77
79
81
83
79
81
83
85
81
83
85
87
83
85
87
89
85
87
89
91
A05020
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