REV : 1
REV DATE : 6/18
DPN004388
Page :2 /4
DA125, DA150 & DA165 DOWNFLOW MODELS
Form No.: DPN001040_REV4
LIEBERT DSE
OPTIONAL ELECTRICAL CONNECTIONS
14) 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.
15) Reheat and humidifier lockout - Remote 24VAC required at terminals 82 & 83 for lockout of reheat and humidifier.
16) 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.
17) Remote humidifier - On any call for humidification, normally open dry contact is closed across terminals 11 & 12 to signal
field supplied remote humidifier. 1 AMP, 24VAC max load. Use Class 1 field supplied wiring.
18) Analog inputs- Terminals 41, 42, 43, 44 are user configurable for 0-10V, 0-5V, or 4-20MA.
OPTIONAL LOW VOLTAGE TERMINAL PACKAGE CONNECTIONS
19) 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.
20) 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.
21) 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.
22) Liqui-Tect 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 Class 1 field supplied wiring.
OPTIONAL COMMUNICATION CONNECTIONS
23) Unit-to-Unit – Plug 64 is reserved for U2U communication.
24) Site and BMS – Plug 74 and terminal block 3 are reserved for Site and BMS connections. Plug 74 is an eight pin RJ45 for a
Cat 5 cable. Terminal block 3 is a two position screw terminal block for use with twisted pair wires.
NOTE: Refer to specification sheet for total unit full load amps, wire size amps, and max overcurrent protective device size.
ELECTRICAL FIELD CONNECTION DESCRIPTIONS
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