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Electrical Field Connections—Downflow Models

73 Liebert

™

System Design Manual

6.1.4 Optional Low-Voltage Terminal Package Connections

for Downflow Models CW146 and CW181

Refer to Figure 6-5.

22. Remote unit shutdown—Two additional contact pairs available for unit shutdown (labeled as

37B & 38B, 37C & 38C). Replace jumpers with field-supplied, normally closed switch that has a

minimum 75VA, 24VAC rating. Use Class 1 field-supplied wiring.

23. Common alarm—On any alarm, two additional normally open dry contacts are closed across

Terminals 94 and 95 and 96 and 97 for remote indication. 1A, 24VAC maximum load. Use Class 1

field-supplied wiring.

24. Main fan auxiliary switch—On closure of main fan contactor, normally open dry contact is closed

across Terminals 84 and 85 for remote indication. 1A, 24VAC maximum load. Use Class 1

field-supplied wiring.

25. Liebert Liqui-tect

shutdown and dry contact—On Liebert Liqui-tect activation, normally open dry

contact is closed across Terminals 58 and 59 for remote indication (Liebert Liqui-tect sensor ordered

separately). 1A, 24VAC maximum load. Use Class 1 field-supplied wiring.

NOTE

Refer to specification sheet for total unit full load amps, wire size amps and maximum overcurrent

protective device size.

Emerson CW026 User Manual

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