Electrical Data Table; Blower Speed - Nordyne R4GD Series Installation Instructions Manual

Use a separate branch electrical circuit for this unit. A
means of electrical disconnect must be located within sight
of and readily accessibility to the unit.
The unit is shipped from the factory wired for 240 volt
transformer operation. For 208 volt operation, remove the
lead from the transformer terminal marked 240V and
connect it to the terminal marked 208V. For maximum
circuit ampacity and maximum over current protection, see
the unit rating plate or Table 7.
Overcurrent protection must be provided at the branch
circuit distribution panel and sized as shown in Table 7 or
on the unit rating label and according to the National
Electric Code and applicable local codes.
Provide power supply (or supplies) for the unit in
accordance with the unit wiring diagram, and the unit
rating plate. Connect the line-voltage leads to the
corresponding terminals on the contactor inside the
control compartment. Use only copper wire for the line
voltage power supply to this unit. Use proper code
agency listed conduit and a conduit connector for
connecting the supply wires to the unit and for obtaining
proper grounding. Grounding may also be accomplished
by using the grounding lug provided in the control box.
Do not use gas piping as an electrical ground.
Model Heating Input
Number (BTUh)
R4GD-024K
45,000
72,000
R4GD-030K
45,000
72,000
R4GD-036K
72,000
96,000
R4GD-042K
72,000
96,000
R4GD-048K
96,000
120,000
R4GD-060K
96,000
120,000
Notes: FLA = Full Load Amps; LRA = Lock Rotor amps; RLA = Rated Load Amps.
Voltage
Nominal
Range
Electrical
Min. Max.
Supply
208/-230/60/1 187 253
208/-230/60/1 187 253
208/-230/60/1 187 253
208/-230/60/1 187 253
208/-230/60/1 187 253
208/-230/60/1 187 253
208/-230/60/1 187 253
208/-230/60/1 187 253
208/-230/60/1 187 253
208/-230/60/1 187 253
208/-230/60/1 187 253
208/-230/60/1 187 253
Table 7. Electrical Data.
!
To avoid personal injury or property damage,
make certain that the motor leads cannot come
into contact with any uninsulated metal
components of the unit.
Blower Speed — The blower speeds are preset at the
factory. See Table 3 for factory settings. For optimum
system performance and comfort, it may be necessary to
change the factory set speed. To change the blower speed:
1. Disconnect all electrical power to the unit and remove
the blower panel.
2. Locate the orange and red wires terminated to the
blower motor. The orange wire controls cooling
operation while the red wire controls heating operation.
3. Verify the required speed from the airflow data found in
table 3. Place appropriate wire on the appropriate motor
speed tap for the required airflow point.
Compressor
Fan
RLA LRA
Amps
11.6 54.0 1.2
11.6 54.0 1.2
15.7 68.0 1.2
15.7 68.0 1.2
16 77.0 1.2
16 77.0 1.2
21.5 104.0 1.2
21.5 104.0 1.2
22.5 137.0 1.2
22.5 137.0 1.2
28.2 118.0 1.2
28.2 118.0 1.2
CAUTION:
Blower Minimum Maximum
Motor Circuit Over-current
Amps Ampacity Protection
4.1 19.8
4.1 19.8
4.1 24.9
4.1 24.9
4.1 25.3
4.1 25.3
6 34.1
6 34.1
6 35.3
6 35.3
6 42.5
6 42.5
30
30
40
40
40
40
50
50
50
50
70
70
15