REV : 0
REV DATE : 2/18
DPN004548
Page :1 /2
Form No.: DPN001040_REV4
ELECTRICAL FIELD CONNECTIONS
LIEBERT CW
NOTE: Refer to specification sheet for full load amp and wire size amp ratings.
2
3
Three phase connection (50Hz).
Electrical service connection terminals when
factory disconnect switch is NOT supplied.
Earth ground bar (on 50HZ only).
Connection terminals with factory ground
from each high voltage component for
field supplied earth grounding wire.
Special alarm connections.
Field supplied
24V. Class 2 wire for special alarms.
Smoke detector alarm connections.
Field supplied 24V. Class 2 wire to remote alarm circuits. Factory wired
terminals from optional smoke detector are #91-comm., #92-NO, and #93-NC. Supervised contacts, 80 & 81,
open on sensor trouble indication. This smoke sensor is not intended to function as, or replace, any room
smoke detection system that may be required by local or national codes.
Three phase connection.
Electric
service connection terminals when
factory disconnect switch is supplied.
Factory installed disconnect
switch.
May be fused disconnect with internal
fuses.
Three phase electric service
not by
Liebert.
Electric conduit knockouts
on bottom of
electric box. Knockouts sizes 1-3/8"
(35mm) or 1-3/4" (45mm) or 2-1/2"(64mm).
Electrical handy box
factory installed
with cover.
Common alarm connection.
Field supplied 24V. Class 2 wiring to
common alarm pigtails 75 + 76
which are factory connected to
common alarm relay (R3).
Remote unit shutdown.
Replace
existing jumper between terminals
37 + 38 with normally closed switch
having a minimum 50VA rating. Use
field supplied 24V Class 2 wire.
Three Phase Connection (60Hz).
Electric
service connection point when factory
disconnect is NOT supplied.
Three phase connection.
Electric service connection
terminals when factory fused
disconnect switch is supplied.
Fused disconnect view
Main fuseblock and fuses not present
when fused disconnect installed
or on 50Hz units.
3 phase electric service
not by Liebert.
MONITORING
PANEL
Field supplied disconnect switch when factory installed unit disconnect switch is not provided.
Select per national and local codes.
Factory installed
unit disconnect
switch.
DOWNFLOW MODELS CW038 - CW084
Liqui-Tect shutdown and dry contact.
On Liqui-Tect activation,
normally open dry contact is closed across terminals 58 & 59 for
remote indication (Liqui-Tect sensor ordered separately). 1 AMP,
24VAC max load. Use Class 2 field supplied wiring.
Earth ground connection (60HZ).
Connection terminal for field supplied
earth grounding wire.
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