Emerson Liebert Challenger 3000 - Figure 44 5-Ton Water;Glycol-Cooled Condensing Unit (Cont.)

Split System Models
76
Figure 44 5-ton water/glycol-cooled condensing unit (con't.)
DPN000228_Rev0
Field-supplied unit disconnect
switch when factory unit
disconnect switch is not suplied
Electric service;
not by Liebert
WATER/GLYCOL
Optional factory-installed
disconnect switch
Field-supplied 24V
NEC Class 1 wiring
to fan/coil unit
Field-supplied 24V
NEC Class 1 wiring
to drycooler
(glycol-cooled units only)
Line voltage electric
power supply conduit voltage
Removable
Access Panel
Heat rejection connection.
Field-supplied 24V NEC Class 2 wiring.
Wire 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)
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
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 G A (1.6mm) for up to 75' (23m)
or not to exceed 1 volt drop in control line.