Venstar T2900 Installation - Manual (Page 20)

DRY CONTACT SWITCH - The terminals are ‘normally open’ (may be programmed for
normally closed operation, see page 16.2 of the Owner’s Manual). Closing or
completing the circuit will cause the thermostat to do one of the following:
1) If Occupied 1 is selected in step #41 of the Advanced Setup (see page 16.4 of Owner’s
Manual), when the dry contact is energized the thermostat will be forced into Occupied 1
setpoints (see Section 6 of Owner’s Manual).
2) If Service Pan is selected, when the dry contact is energized the thermostat will lockout
Y1 (compressor) and write Service Pan on the display.
Page 5.8
5
CK1 and CK2 terminals wired to a Time Clock
Y1
G
R
C
MISC2
CK1
CKGND
W1/O/B
MISC1
RS+5
RS1
RSGND
W2
RS2
MISC3
12 11
10
9
8
7 6 5
4
3
2
1
For instructions on wiring the optional Remote and Outdoor
Sensors, please see page 15.2 of the Owner’s Manual