Venstar T1900 - Manual (Page 83)

Page 17.3
Dry Contact Programming
VACATION MODE OR SERVICE THE CONDENSATE DRAIN PAN -
If Vacation is selected in step #42 (below), when the dry contact is
energized and the thermostat will be forced into Vacation mode
(Section 20).
If Service Pan is selected, when the dry contact is energized the
thermostat will lockout Y1 (compressor) and write Service Pan on
the display.
Press the PROGRAM button to leave the Setup screens. If no buttons are
pressed, the display will leave the setup screens after 30 seconds.
PROGRAM
Press
Service Pan
Vacation
Setup
42
PROGRAM
MODE
MODE
Vacation
Press the MODE button. While holding
the MODE, press the PROGRAM
button to enter Setup screens.
Press the MODE button repeatedly
until this setup screen appears.
S
Y1 when the dry contact is
energized. Select Vacation to
enable Vacation setpoints
when the dry contact is
energized. elect Service Pan to lockout
Connect wires to a time
clock or other device to
force the thermostat into
Vacation mode.
Y1
G
R
C
MISC2
CK1
CKGND
W1/O/B
MISC1
RS+5
RS1
RSGND
W2
RS2
MISC3
Y1
G
R
C
MISC2
CK1
CKGND
W1/O/B
MISC1
RS+5
RS1
RSGND
W2
RS2
MISC3
OR
Vacation Service Pan
17
Note: Press the MODE
button momentarily
to move through the
setup screens. Press
and hold the
MODE
button to move back-
wards through the
setup screens.
Connect wires to a device that
will complete the circuit betw-
een CK1 and CKGND when the
Condensate Drain Pan is full.
NOTE: If Service Pan is selected and the dry contact was closed at least once, the
Service Pan icon will remain on the display to alert the user that a problem has
occurred. This icon will be cleared once a button is pressed.
Step 42 appears only if step 40 is “YES”.