288429-YIM-B-0408
** = Minimum wire size of 18 AWG
wire should be used for all field
installed 24 volt wire.
PROGRAMMABLE
THERMOSTAT ONLY
Figure 8: Typical Field Control Wiring Diagram 2 Stage Thermostat
Figure 9: Typical Field Power Wiring Diagram
Table 5: Electrical Data
Size
Model
Volt
(Tons)
024
DEX
208/230-1-60 10.2
(2.0)
030
DEX
208/230-1-60 14.1
(2.5)
208/230-1-60 16.6
036
DEX
(3.0)
208/230-3-60 11.1
460-3-60
Johnson Controls Unitary Products
2 STAGE
THERMOSTAT
R
G
Y
1
Y
2
W
C
OD Fan
Supply
Compressors
Motors
Blower
(each)
(each)
RLA LRA
MCC
FLA
52
16
1.2
70
22
1.2
82
26
1.2
58
17
1.2
4.5
29
7
0.8
UNIT CONTROL BOARD
TERMINAL STRIP
* *
R
G
Y
1
Y/Y
2
W
2
W
1
C
Electric Heat Option
Motor
FLA
Model
kW
None
-
2NH04500506
3.8/5
4.3
2NH04500706 5.6/7.5
2NH04501006 7.5/10
None
-
2NH04500506
3.8/5
4.3
2NH04500706 5.6/7.5
2NH04501006 7.5/10
2NH04501506 11.3/15
None
-
2NH04500506
3.8/5
4.3
2NH04500706 5.6/7.5
2NH04501006 7.5/10
2NH04501506 11.3/15
None
-
4.3
2NH04501025 7.5/10
2NH04501525 11.3/15
None
-
4.3
2NH04501046
10
2NH04501546
15
NOTE: HEAT ANTICIPATOR
SHOULD BE SET AT 0.35
AMPS FOR ALL MODELS.
24 VOLT
TRANSFORMER
1
MCA
(Amps)
Stages
Amps
-
-
18.3
1
18.1/20.8
27.9 / 31.4
2
27.1/31.3
39.2 / 44.4
2
36.1/41.7
50.5 / 57.5
-
-
23.1
1
18.1/20.8
27.9 / 31.4
2
27.1/31.3
39.2 / 44.4
2
36.1/41.7
50.5 / 57.5
2
54.2/62.5
73.1 / 83.5
-
-
26.3
1
18.1/20.8
27.9 / 31.4
2
27.1/31.3
39.2 / 44.4
2
36.1/41.7
50.5 / 57.5
2
54.2/62.5
73.1 / 83.5
-
-
19.4
1
20.8/24.1
31.4 / 35.4
1
31.3/36.1
44.5 / 50.5
-
-
10.7
1
12
20.4
1
18
27.9
2
Max Fuse
/
3
Breaker
Size
(Amps)
25
30 / 35
40 / 45
60 / 60
30
35 / 35
40 / 45
60 / 60
80 / 90
35
35 / 40
40 / 45
60 / 60
80 / 90
25
35 / 40
45 / 60
15
25
30
9
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