288429-YIM-A-0307
Unitary Products Group 9
Figure 8: Typical Field Control Wiring Diagram 2 Stage Thermostat
Figure 9: Typical Field Power Wiring Diagram
R
G
W
R
G
Y
1
Y
1
Y
2
W
2
W
1
Y/Y
2
** = Minimum wire size of 18 AWG
wire should be used for all field
installed 24 volt wire.
2 STAGE
THERMOSTAT
UNIT CONTROL BOARD
TERMINAL STRIP
24 VOLT
TRANSFORMER
**
NOTE: HEAT ANTICIPATOR
SHOULD BE SET AT 0.35
AMPS FOR ALL MODELS.
CC
PROGRAMMABLE
THERMOSTAT ONLY
Table 5: Electrical Data
Size
(Tons)
Model Volt
Compressors
(each)
OD Fan
Motors
(each)
Supply
Blower
Motor
Electric Heat Option
MCA
1
(Amps)
Max Fuse
2
/
Breaker
3
Size
(Amps)
RLA LRA MCC FLA FLA Model kW Stages Amps
024
(2.0)
DEX 208/230-1-60 10.2 52 16 1.2 4.3
None - - - 18.3 25
2NH04500506 3.8/5 1 18.1/20.8 40.8/44.3 45/45
2NH04500706 5.6/7.5 2 27.1/31.3 52.1/57.3 60/60
2NH04501006 7.5/10 2 36.1/41.7 63.4/70.3 70/80
030
(2.5)
DEX 208/230-1-60 14.1 70 22 1.2 4.3
None - - - 23.1 30
2NH04500506 3.8/5 1 18.1/20.8 45.7/49.2 50/50
2NH04500706 5.6/7.5 2 27.1/31.3 57/62.2 60/70
2NH04501006 7.5/10 2 36.1/41.7 68.3/75.2 70/80
2NH04501506 11.3/15 2 54.2/62.5 90.8/101.3 100/110
036
(3.0)
DEX
208/230-1-60 16.6 82 26 1.2 4.3
None - - - 26.3 35
2NH04500506 3.8/5 1 18.1/20.8 48.8/52.3 60/60
2NH04500706 5.6/7.5 2 27.1/31.3 60.1/65.3 70/70
2NH04501006 7.5/10 2 36.1/41.7 71.4/78.3 80/80
2NH04501506 11.3/15 2 54.2/62.5 94/104.4 100/110
208/230-3-60 11.1 58 17 1.2 4.3
None - - - 19.4 25
2NH04501025 7.5/10 1 20.8/24.1 45.4/49.4 50/50
2NH04501525 11.3/15 1 31.3/36.1 58.5/64.5 60/70
460-3-60 4.5 29 7 0.8 4.3
None - - - 10.7 15
2NH04501046 10 1 12 25.7 30
2NH04501546 15 1 18 33.2 35
