About Advanced Features & Operation
Page 19
KEYPAD LOCK - To prevent unauthorized use of the thermostat,
the front panel buttons may be disabled. To disable, or
‘lock’ the keypad, press and hold in the Mode button.
While holding the Mode button in, press the Up and Down
buttons in together. The
Locked
icon will appear on the
display.
DRY CONTACT SWITCH - The terminals are ‘normally open’.
Closing or completing the circuit will cause the thermostat
enter Occupied 1. This feature allows an external
such as a Central Time Clock, Occupancy Sensor,
Telephone activated device to force 1 or more
Occupied 1. For the Dry Contact to work
must be in
Program On
.
Set Occupied 1
days,
so the Contact closure will be in
is forced into Occupied 1
closure, the icon
Occupied 1
will blink.
to
device
or a
thermostats into
the thermostat
to Off
for all 7
control. When the thermostat
via the Dry Contact
Press all 3 for
Keypad Lockout
To
unlock
the buttons, again press and hold the Mode
button. While holding the Mode button in, press the Up
and Down buttons in together. The
Locked
icon will
disappear from the display.
CK1
GND
Important Note:
For control of multiple
thermostats by 1 source, refer to
document P/N 88-175 ‘Potential Phasing
Problems’ before installation.
MODE
85
55
unoccupied
On
Pm
C
OOL
H
EAT
Locked
We
I2:00
