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62
Figure 32 3 ton water/glycol cooled condensing unit (con't.)
DPN000209_Rev0
Heat rejection connection.
Field-supplied 24V NEC Class 2 wiring.
Wire connections from evaporator mod:
1. 24V GND
2. 24V supply
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.
Single- or three-phase electric
service not by Liebert
Field-supplied unit disconnect
switch when optional disconnect
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)
Factory-wired components
on electric panel
Earth/ground connection
Connection terminal for field-supplied
earth-grounding wire
Line voltage electric power
supply entrance
Optional factory-installed
disconnect switch
Low-voltage electric power
supply entrance
Remote drycooler connection
Terminals 70 & 71 supplied for
connection to remote drycooler
Use field-supplied 24V NEC
Class 1 wiring (glycol-cooled
units only)