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Figure 7, Electrical field connections, 1- to 5-ton units – Emerson Precision Cooling For Business-Critical Continuity Figure i User Manual

Page 13

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Installation

9

Figure 7

Electrical field connections, 1- to 5-ton units

Horizontal Air Discharge Models

DPN000134
Rev. 1

Field-supplied unit
disconnect switch

Single- or three-phase
electric service not provided
by Liebert

Factory-wired
to components on
electric panel

Heat rejection connection.
Field-supplied 24V NEC
Class 2 wiring.
Wire connections from
evaporator module:
1. 24V GND
2. 24V Supply
3. High Pressure Alarm
4. Hot Gas Bypass Connection

Electric service connection
to contactor or terminal block

Single- or three-phase electric
service not provided by Liebert

High-voltage electric power
supply entrance

Low-voltage electric
power supply
entrance

Earth ground connection
terminal for field wiring

Field-supplied unit
disconnect switch

Single- or three-phase
electric service not provided
by Liebert

Field-supplied 24V
NEC Class 2 wiring
to evaporator module

Field-supplied 24V
NEC Class 2 wiring
to evaporator module

Top Air Discharge Models

(5 Ton High Ambient or 5 Ton Quiet-Line)

Refer to tables or unit serial label
for FLA, WSA and OPD values.