R-Series Electric
12
CQF3473 v.01
Operation & Service
April 17, 2018
Installation (continued)
Wiring must be such that when viewing compressor from opposite shaft end, rotation of shaft is
clockwise as shown by arrow on guard. Wrong direction rotation for any length of time will result
in damage to compressor.
GROUNDING INSTRUCTIONS
This product should be connected to a grounded, metallic, permanent wiring system, or an equipment-
grounding terminal or lead on the product.
AIR LINE PIPING
Connection to air system should be of the same size, or larger, than discharge pipe out of unit. The table
gives recommended minimum pipe sizes. A union connection to the unit and water drop leg is
recommended. Install a flexible connector between the discharge of the unit and the plant air piping.
Plant air piping should be periodically inspected for leaks using a soap and water solution for detection
on all pipe joints. Air leaks waste energy and are expensive.
Minimum Pipe Sizes For Compressor Air Lines
(Based on clean Smooth Schedule 40 Pipe)
MODEL
25’
50’
100’
200’
300’
R10D
3/4”
(1”)
3/4”
(1”)
3/4”
(1”)
3/4”
(1”)
3/4”
(1”)
R15B
3/4”
(1”)
3/4”
(1”)
3/4”
(1”)
1”
(1-1/4”)
1”
(1-1/4”)
R30D
3/4”
(1-1/4”)
1”
(1-1/4”)
1”
(1-1/4”)
1”
(1-1/2”)
1”
(1-1/2”)
R40A
1-1/4”
(1-1/2”)
1-1/4”
(1-1/2”)
1-1/4”
(1-1/2”)
1-1/4
(1-1/2”)
1-1/4”
(1-1/2”)
R70A
1-1/4”
(1-1/2”)
1-1/4”
(1-1/2”)
1-1/4”
(1-1/2”)
1-1/2”
(2”)
1-1/2”
(2”)
Values in ( ) are for duplex unit.
Never use plastic pipe or improperly rated metal pipe. Improper piping material can burst and cause
injury or property damage.
