Liebert ITR installation manual Water/Glycol

Split System Models

Figure 28 Water/glycol-cooled condensing unit (con't.)

Field-supplied unit disconnect switch when factory unit disconnect switch is not supplied

WATER/GLYCOL	Optional factory-installed
	disconnect switch

Field-supplied 24V NEC Class1 wiring to fan/coil unit

Electric service; not by Liebert

Field-supplied 24V NEC Class1 wiring to drycooler (glycol-cooled units only)

Heat rejection connection.		Removable
Field-supplied 24V NEC		Access
Class 2 wiring. Wire		Panel
connections from evaporator
mod:
1.	24V ground
2.	24V supply
3.	High pressure alarm (optional)
4.	Hot gas bypass

connection (only on units with hot gas bypass)

Remote drycooler connection; field-supplied 24V NEC Class 1 wiring (glycol-cooled units only)

Line-voltage electric power supply conduit entrance

Connection terminal for field-supplied earth grounding wire

Low-voltage electric

power supply conduit entrance

Field-supplied 24V NEC Class 1 wiring between glycol condensing unit and drycooler

DPN000228_Rev0

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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