Vertiv Liebert CW340, Инструкция по установке и эксплуатации

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REV DATE : 9/17
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CW340 & CW440 DOWNFLOW MODELS
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ELECTRICAL FIELD CONNECTION
LIEBERT CW
DEFINITIONS AND LOCATIONS
STANDARD ELECTRICAL CONNECTIONS
1)
Primary high voltage entrance -
2.50” (64mm); 1.75” (44mm) @ EP Box; 1.375” (35mm) diameter concentric knockouts located in
bottom of box
2) Primary low voltage entrance - Quantity (3) 1.375” (35mm) diameter knockouts located in bottom of box
3) Three phase electrical service -
Terminals are on top of disconnect switch. Three phase service not by Liebert.
4) Earth ground -
Terminal for field supplied earth grounding wire.
5) Remote unit shutdown - Replace existing jumper between terminals 37 & 38 with field supplied normally closed switch having a
minimum 75VA, 24VAC rating. Use field supplied Class 1 wiring.
6) Customer alarm inputs - Terminals for field supplied, normally open contacts, having a minimum 75VA, 24VAC rating, between terminals
24 & 50, 51, 55, 56. Use field supplied Class 1 wiring. Terminal availability varies by unit options.
7) Common alarm -
On any alarm, normally open dry contact is closed across terminals 75 & 76 for remote indication. 1 AMP, 24VAC max
load. Use Class 1 field supplied wiring.
8) Fan section RS485 connections –
Quick connect socket located at the base of the coil section, below the low voltage panel provides
RS485 control for the fans. Requires field connection of fan section low voltage harness.
9) Fan section high voltage connections –
Quick connect sockets located at the base of the coil section, below the high voltage panel
provide three phase power to the fans. Requires field connection of fan section high voltage harness.
OPTIONAL ELECTRICAL CONNECTIONS
10)
Unit factory installed fused disconnect switch–
Access to the high voltage electric panel compartment can be obtained only with the
switch in the “off” position.
11) Secondary disconnect switch and earth ground –
Fuses are included in the 65KAIC SCCR fused disconnect switch models.
12) Smoke sensor alarm - Factory wired dry contacts from smoke sensor are 91-common, 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. 1 AMP, 24VAC max load. Use Class 1 field supplied wiring.
13) Condensate alarm
(with condensate pump option) - On pump high water indication, normally open dry contact is closed across terminals
88 & 89 for remote indication. 1 AMP, 24VAC max load. Use Class 1 field supplied wiring.
14) Remote Humidifier - On any call for humidification, normally open dry contact is closed across terminals 11 & 12 to signal field supplied
remote humidifier. 1AMP, 24VAC max load. Use Class 1 field supplied wiring.
15) Reversing Starter Power Supply Notification – Normally open contact terminals 102 and 103 will close when Power Supply 1 is
engaged; 106 and 107 will close when Power Supply 2 is engaged.
OPTIONAL LOW VOLTAGE TERMINAL PACKAGE CONNECTIONS
16) Remote unit shutdown -
Two additional contact pairs available for unit shutdown (labeled as 37B & 38B, 37C & 38C). Replace jumpers
with field supplied normally closed switch having a minimum 75VA, 24VAC rating. Use field supplied Class 1 wiring.
17) Common alarm -
On any alarm, two additional normally open dry contacts are closed across terminals 94 & 95 and 96 & 97 for remote
indication. 1 AMP, 24VAC max load. Use Class 1 field supplied wiring.
18) Main fan auxiliary switch - On closure of main fan contactor, normally open dry contact is closed across terminals 84 & 85 for remote
indication. 1 AMP, 24VAC max load. Use Class 1 field supplied wiring.
19) 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 1 field supplied wiring.