Vertiv Liebert DSE Packaged Series Installer/User Manual page 94

LIEBERT DSE PACKAGED SOLUTION
STANDARD COMMUNICATION CONNECTIONS
17) RS485 BMS CONNECTION – Terminal TB3-1 is TX/RX+. Terminal TB3-2 is TX/RX-. Terminal TB3-3 is earth ground. Use shielded
cable with 120ohm characteristic impedance. (Supplied by other).
18) CANBUS REMOTE SENSOR CONNECTION(P67) – Remove the inserted plug from this connector and attach the remote sensor
cable to power and communicate with Liebert remote Temperature/humidity sensors. Use shielded cable with 120ohm characteristic
impedance. (Supplied by other)
a) SUPPLY AIR AGGREGATOR SENSOR – Is a control option that allows the use of the 1 NTC sensor that is already provided
as a standard with the unit and the ability to ADD up to an additional 5 - 2T sensors to be used together to measure the
supply temperature for a total of up to 6 supply sensors. The ability to use multiple sensors to measure the supply
temperature provides iCOM™ the ability to control using the Maximum or Average of all the supply sensors. This is especially
useful in application of ducted systems and non-raised floor application because of the ability to have additional sensors
strategically placed to measure supply temperature and they provide benefits in raised floor applications.
b) 2T SENSOR – Is a control option that allows temperature data from multiple sensors to be averaged together when used in
Team Work 1 Mode. In this mode, one unit is selected as the "master". When cascade control is enabled, selected unit or
units will operate continuously, standby unit will cycle on when additional cooling is required. If Lead/Lag control is enabled,
Standby unit will automatically start upon detection of a Lead unit. The Lead unit will automatically rotate every 24 hours (Adj)
to ensure equal run time between all units if auto rotate is enabled.
19) ETHERNET BMS CONNECTION(P74) – RJ-45 connection for connecting to BMS Ethernet network. Use Class 5 shielded cable
(Supplied by other).
20) ETHERNET UNIT TO UNIT CONNECTION(P64) – RJ-45 connection for connecting to other units. Use Class 5 shielded cable
(Supplied by other).
NOTE: All low voltage terminal connections are spring-cage with a wire range of 28-12AWG.
NOTE: All communication cables should be kept separate from high-voltage wiring.
OPTIONAL ELECTRICAL CONNECTIONS
(Contact factory for availability)
21) SMOKE SENSOR ALARM – Factory wired dry contacts from smoke sensor are 91-common, 92-Normally Open, and 93-Normally
Closed. 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 field supplied Class
1 wiring.
22) SPARE TERMINALS– Spare terminals for Class 1 wiring.
23) LIQUITECT SHUTDOWN AND DRY CONTACT – On LiquiTect activation, normally open dry contact is closed across terminals 58 &
59 for remote indication (LiquiTect sensor ordered separately). 1 AMP, 24VAC max load. Use field supplied Class 1 wiring.
24) REMOTE HUMIDIFIER – On any call for humidification, normally open dry contact is closed across terminals 35 & 36 to signal field
supplied remote humidifier. 1 AMP, 24VAC max load. Use field supplied Class 1 wiring.
25) DAMPER MOTOR CONTROL INPUT – Terminals for field supplied connection for damper motor off relay (factory set to 100 SEC),
having minimum of 1 AMP, 24VAC max load. Use field supplied Class 1 wiring. Damper input will use one of the customer alarm
inputs of item 12.
26) DAMPER MOTOR FEEDBACK – On damper motor end switch activation, normally open dry contacts are closed across terminals 176
& 99, 177. 1 AMP, 24VAC max load. Use field supplied Class 1 wiring. Damper input will use one of the customer alarm inputs of item
10.
27) HEAT TRACE – Terminals for field supplied connection of heat trace used to heat the condensate water line. Power is supplied from
the 120V Utility Power (item 5). 22-8AWG wire range, 14.2lb-in tightening torque.
NOTE: Terminals for items 21 through 27 are always present. Refer to the order to verify if the options are installed on the unit.
NOTE: All low voltage terminal connections (items 21 through 26) are spring-cage with a wire range of 28-12AWG.
DPN004960
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ELECTRICAL FIELD CONNECTIONS
DP400/500 DEFINITIONS AND LOCATIONS
REV : 0
REV DATE : 4/29/2019