Dry Contact Programming - Carrier 33CS450-01 Owner's Manual

7-day programmable commercial thermostat
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Dry Contact Programming

Dry Contact Programming
OCCUPIED 1 OR SERVICE THE CONDENSATE DRAIN PAN - If
Occupied 1 is selected in step #41 (below), when the dry contact is
energized the thermostat will be forced into Occupied 1 setpoints
and the Occupied 1 icon will blink (Section 6). The thermostat must
be in Program On mode for this feature to have any effect.
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 MODE button. While holding
MODE
the MODE, press the PROGRAM
button to enter Setup screens.
PROGRAM
Press the MODE button repeatedly
MODE
until this setup screen appears.
Step 41 appears only if step 39 is "YES".
Service Pan
Select Service Pan to lockout
Y1 when the dry contact is
energized. Select Occupied 1
to enable Occupied 1 setpoints
when the dry contact is
energized.
Occupied 1
Press the PROGRAM button to leave the Setup screens. If no buttons are
pressed, the display will leave the setup screens after 30 seconds.
NOTE: If Service Pan is selected and the dry contact was closed at least once, the
16
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.
Occupied 1
W2
W1/O/B
MISC1
Y1
RS2
G
MISC3
MISC2
RS+5
CK1
RS1
CKGND
RSGND
R
C
Connect wires to a time
clock or other device to
force the thermostat into
Occupied 1.
Note: Press the
button momentarily
to move through the
setup screens. Press
and hold the
button to move back-
wards through the
setup screens.
4 i
Setup
occupied
1
Service Pan
OR
W2
MISC1
RS2
MISC3
RS+5
RS1
RSGND
Connect wires to a device that
will complete the circuit betw-
een CK1 and CKGND when the
Page 16.3
Condensate Drain Pan is full.
Carrier
MODE
MODE
Press
PROGRAM
W1/O/B
Y1
G
MISC2
CK1
CKGND
R
C

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