Electrical Field Connections—Downflow Models
69
Liebert
®
CW
™
System Design Manual
Figure 6-3 Electrical field connections, downflow, CW089, CW106 and CW114
NOTE: Refer to specification sheet for full load am p and wire size amp ratings.
Temperature and
Humidity Sensor
Intellislot Power
Supply Bloard
Earth ground bar (optional).
Connection terminals with factory
ground from each high voltage
component for field supplied
earth grounding wire.
Electric conduit knockouts.
Bottom of electric box.
Knockout sizes 1 3/8"(35mm)
or 1 3/4" (45mm) or 2 1/2" (64mm).
Three phase electric service.
Not provided by Liebert.
Three phase connection.
Electric service connection
terminals when factory
disconnect switch is supplied.
Disconnect switch (optional).
Factory installed.
Earth ground connection (60 HZ).
Connection terminal for field supplied
earth grounding wire.
Three phase connection (60Hz).
Electric service connection
terminals when factory disconnect
switch is NOT supplied.
Common alarm connection.
Field supplied 24V, Class
1 wiring to common alarm terminals 75 + 76 which are
factory connected to common alarm relay (R3).
Smoke detector alarm connections.
Field
supplied 24V, Class 1 wire to remote alarm circuits.
Factory wired terminals from optional smoke
detector are #91-comm., #92-NO, and #93-NC.
Customer alarm connections.
Field
supplied 24V, Class 1 wire for customer
alarm terminals24, 50, 51, 55, 56.
Remote unit shutdown.
Replace existing jumper between
terminals 37 + 38 with normally closed
switch having a minimum 50VA rating.
Use field supplied, 24V Class 1 wire.
Intellislot Housings.
Optional Monitoring and
Communication cards
inserted here.
May be fused
disconnect with
internal fuses.
Fused Disconnect View
Three phase connection.
Electric service connection
terminals when factory fused
disconnect switch is supplied.
Main fuseblock and fuses not present when fused
disconnect installed or on 50Hz units.
Three phase connection (50Hz).
Electric service connection
terminals when factory disconnect
switch is NOT supplied.
Monitoring
Panel
Field supplied disconnect switch when factory
installed unit disconnect is not provided.
Select per National and local codes.
3 phase electrical service
not by Liebert.
Factory installed unit
disconnect switch (optional)
DPN003199
Pg. 1 Rev. 1
Содержание CW089
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