SDI-W
Feb ‘19
- 8 -
Installation - Electrical
General Information.
For 3 Phase Units:
Connect ground wire to Protective Earth terminal.
Bring power to L1, L2, L3.
See page 10 for start-up procedures.
For 1-Phase Units:
Connect ground wire to Protective Earth terminal.
Bring power to L1 and L2.
See page 10 for start-up procedures.
It is your responsibility to ensure that the Compressor
Unit is electrically connected in a safe and correct
manner. Any electrical work should be carried out
by a competent Electrician and be done in such a
way that it meets all applicable Codes and
Regulations.
Ensure that a suitable Fused Disconnect or Breaker (by
others than DV Systems) is installed in the electrical
supply before the Compressor Unit.
A Magnetic Starter is an integral part of the
Compressor Unit circuit as it provides overload
protection to the electric Motor. (The ‘IS5-4060-03’
Units have Motors equipped with an internal Overload,
and a Starter is therefore not provided or required.)
Failure to correctly connect the
Compressor to your building's electrical
services may result in serious personal
injury or damage to the equipment.
Before servicing the Unit, ensure the power
source has been shut down and locked off.
Read and understand the information
contained in this manual before installing
or operating the Unit.
This product must be connected to a
grounded, metallic, permanent wiring
system, or an equipment-grounding
terminal or lead on the product.
Failure to observe any of the above
precautions could result in severe personal
injury or death, and/or damage to the Unit.
Main Fuse
Box
Fused Disconnect
or Circuit Breaker
Magnetic
Starter
Typical Electrical Installation
Of a Compressor Unit
L1 L2 L3
Pressure
Switch
Motor
Typical Magnetic Starter Wiring
(Subject to Local Codes and Authorities)
Typical Wiring at Pressure Switch
(‘IS5-4060-03’ Units Only)
Field
Ground
Motor
Ground
Factory Wiring
To Motor
220 Volt Power
(#12 Wire)
Coil
Protective
Earth
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