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L2
BLU
460 3Ø
POWER
L1
SUPPLY
L3
ALERT!
(NOTE #11)
BLU
EQUIP GND
BLK
YEL
BLK or RED
PRM
L2
L1
L3
CONT 24V COM
*CH
BLU/YEL
BLK or RED
BLK
*LPS
YEL
YEL
BLK
DR
OF1
BLK
OF2
**
50
C
Y
O
W2
R
30
YEL
WHT
CB
BLK
ORN
RED
HK32EA001
C Y O
R E L
W2
W3
C Y O
R E L
W2
-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)
*CH
CRANKCASE HEATER
COMPRESSOR
COMP
CONTACTOR
CONT
CB
CIRCUIT BOARD
DFT
DEFROST THERMOSTAT
DR
DEFROST RELAY AND
CIRCUITRY
DISCHARGE TEMP. SWITCH
*DTS
HIGH PRESSURE SWITCH
*HPS
*LPS
LOW PRESSURE SWITCH
OFM
OUTDOOR FAN MOTOR
OFR
OUTDOOR FAN RELAY
PRM
PHASE ROTATION MONITOR
REVERSING VALVE
RVS
SOLENOID
* MAY BE FACTORY OR FIELD INSTALLED.
CONNECTION DIAGRAM
COMP
CONT
T1
T2
BLK
21
BLK
11
T3
YEL
23
13
YEL
OFM
OFR
BRN
BLK
1
3
YEL
BRN
BRN
BLK
BRN
YEL
BLU or YEL
GRY
*HPS
*DTS
BLK
BLU
Y
YEL
T1
C
BRN
ORG
C
LOGIC
ORG
O
ORG
or
BLK
90
DFT
PNK
PNK
BLK
R
R
or
PNK
INDOOR UNIT
**
G
BOARD MAY HAVE 60
TERMINAL BLOCK
AS MIDDLE SELECTION
INDOOR THERMOSTAT
G
(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. 8—Label Wiring 327416-101
SCHEMATIC DIAGRAM (LADDER FORM)
L1
CAP
EQUIP
GND
11
O
O
W2
R
R
Y
Y
C
*LPS
90
FIELD SELECTED TIME PERIOD
**
50
BETWEEN DEFROST CYCLES (MINUTES)
30
RVS
SPEED
ORG
JUMPERED TEST PINS (USE METAL OBJECT), FIELD SPEED-UP CYCLE
or
UP
BLK
HEAT CYCLE:
90 MIN. ACCELERATED TO 21 SEC.
60 MIN. ACCELERATED TO 14 SEC.
**
50 MIN. ACCELERATED TO 12 SEC.
BLK
or
30 MIN. ACCELERATED TO 7 SEC.
PNK
DEFROST CYCLE:
10 MIN. ACCELERATED TO 2 SEC.
DFT
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.
9
PRM
L2
L3
L1
COMP
CONT
T2
T1
21
T3
CAP
OFM
OFR
1
3
C
RVS
OF1
DR
OF2
OFR
CONT
DFT
DFT
LOGI C
DR
T1
*HPS
*DTS
PRM LED INDICATOR
OFF:
ON:
FLASH: PHASE PROBLEM
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
32
60
7
10
12
15
18
23
23
27
30
65
-- 6
10
13
16
19
21
24
27
70
-- -- 7
10
13
16
19
21
24
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
10
100
-- -- -- -- -- -- --
--
8 12 15 20 23 27
105
--
--
--
--
--
--
--
--
5 9 13 17 22 26
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
76.0
0
35
37
39
41
43
2
37
39
41
43
45
4
39
41
43
45
47
6
41
43
45
47
49
8
43
45
47
49
51
10
45
47
49
51
53
12
47
49
51
53
55
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
61
63
65
67
69
26
63
65
67
69
71
28
65
67
69
71
73
30
32
67
69
71
73
75
34
69
71
73
75
77
36
71
73
75
77
79
38
73
75
77
79
81
40
75
77
79
81
83
327416-101 REV. B
L2
L3
CONT
23
13
*CH
PRM
24V
COM
C
CON T
NOTE
NO 24VAC
OK
35
37
40
42
45
33
35
38
40
43
30
33
36
38
41
27
30
33
36
39
30
33
18
14
22 25
29
6
11
15
20
25
8
23
14
18
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
A05021
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