Liebert 3000 installation manual DPN000209_Rev0, Split System Models

Split System Models

Figure 32 3 ton water/glycol cooled condensing unit (con't.)

Single- or three-phase electric	Field-supplied unit disconnect
	switch when optional disconnect
service not by Liebert	is not provided in unit
	Field-supplied 24V NEC Class 1
	wiring to fan/coil unit
	Field-supplied 24V NEC
	Class 1 wiring to drycooler
	(glycol-cooled units only)

Earth/ground connection

Connection terminal for field-supplied earth-grounding wire

Factory-wired components

Line voltage electric poweron electric panel supply entrance

Optional factory-installed disconnect switch

Low-voltage electric power supply entrance

Remote drycooler connection	Heat rejection connection.		DPN000209_Rev0
Terminals 70 & 71 supplied for	Field-supplied 24V NEC Class 2 wiring.
connection to remote drycooler
	Wire connections from evaporator mod:
Use field-supplied 24V NEC
	1.	24V GND
Class 1 wiring (glycol-cooled
	2.	24V supply
units only)
	3.	High pressure alarm (opt)

4. Hot gas bypass connection (only on units with hot gas bypass)

NOTES

1.Refer to specification sheet for full load amp. and wire size amp. ratings.

2.Control voltage wiring must be a minimum of 16 GA (1.6mm) for up to 75' (23m) or not to exceed 1 volt drop in control line.

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