Venstar T1075 User Manual

Page 34

Advertising
background image

About Advanced Features & Operation

SINGLE SETPOINT BEHAVIOR - When configured
for Single Setpoint operation (step #4, page 19), the
degree icon will blink when the large number is display-
ing room temperature and will remain solid when dis-
playing the heating or cooling setpoint. In the Auto and
Program On modes the deadband is enforced both
above and below the setpoint. To avoid short cycling,
a deadband of at least two degrees is recommended
(step #9, page 20). To display the room temperature
press and hold the MODE button for two seconds.
Release the MODE button to return to the normal
display.

Page 33

FAN COIL TYPE - This step instructs the thermostat
how to set the G, G2, and G3 outputs to yield the
desired fan speeds. Since this a low voltage
thermostat, the fan coil should have multiple relays or
contactors to supply the voltages needed for the fan
motor. Most fan coils will have 3 relays and require
only one relay to be driven at a time. However,
many models of Carrier or IEC fan coils contain a
relay board with special logic that requires different
output settings from the thermostat. If there is any
question, please contact the fan coil manufacturer.

Step 8 = OFF

Step 8 = ON

Speed

LO

MED

HI

Speed

LO

MED

HI

G

ON

G

ON
ON
ON

G2

ON

G2

ON

G3

ON

G3

ON

Advertising