R-Series Electric
11
CQF3473 v.01
Operation & Service
April 17, 2018
Installation (continued)
Always use an air pressure regulating device at the point of use. Failure to do so can result in injury
or equipment damage.
●
Do not install in an area where ambient temperature is below 32°F or above 104°F.
●
Do not install unit in an area where air is dirty and/or chemical laden.
●
Unit is not to be installed outdoors.
ELECTRICAL POWER SUPPLY
It is essential that the power supply and the supply wiring are adequately sized and that the voltage
corresponds to the unit specifications. Branch circuit protection must be provided at installation as
specified in the National Electrical Code.
All wiring should be performed by a licensed electrician or electrical contractor. Wiring must meet
applicable codes for area of installation. The table gives recommended wire sizes based on the 2017
NEC.
WIRE SIZE (AWG) - 75°C COPPER - 40°C AMBIENT
MOTOR
HP
3 PHASE
1 PHASE
200/208V
230V
460V
575V
115V
208V
230V
2
14 (12)
14 (12)
14 (14)
14 (14)
8 (4)
12 (8)
12 (10)
3
12 (10)
14 (10)
14 (14)
14 (14)
6 (3)
10 (6)
10 (8)
5
10 (6)
12 (8)
14 (12)
14 (12)
--
8 (4)
8 (4)
7-1/2
8 (4)
10 (6)
14 (10)
14 (10)
--
4 (1)
6 (2)
10
8 (3)
8 (4)
12 (8)
14 (10)
--
--
--
15
4 (1)
6 (2)
10 (6)
10 (6)
--
--
--
20
3 (00)
4 (0)
8 (4)
10 (6)
--
--
--
25
1 (0000)
2 (000)
6 (3)
8 (4)
--
--
--
30
0 (250)
1 (0000)
6 (2)
8 (4)
--
--
--
Values in ( ) for Duplex Unit w/one incoming power line to both motors.
All models require a properly sized magnetic starter as specified in the National Electric Code (NEC).
See Control Panel Manual for details.
If ordered with a factory mounted control panel, compressor is wired at factory. It is necessary only to
bring lines from a properly sized disconnect switch to the control panel mounted on the unit.