Vtronix
Auto mode icon
The speed will be adjusted according to the difference between the room and the setpoint temperature.
If the difference is 4
°
F or more, the fan will run at high speed.
If the difference is 3
°
F, the fan will run at medium speed.
If the difference is 2
°
F, or lower, the fan will run at low speed.
Note : Fan speed defaults to Automatic after 1 hour if it is changed by the user to a particular speed.
C
ontinuous Fan
FAN is always on in High, Medium or Low speeds as long as the thermostat is powered.
C
ycled Fan Standard
Fan is on when the heat or cool outputs are on (on cycle). Automatic fan operation is active in the on cycle.
When the heat or cool outputs are off (off cycle), the Fan output is off. The Fan icons (Auto, High, Med and
Low) are all turned off. The button is deactivated in the off cycle. During the on cycle the fan speed can
be manually changed. The fan will turn off in the off cycle and revert back to the selected fan speed during
the on cycle.
C
ycled Fan Override
Fan is on when the heat or cool outputs are on (on cycle). Automatic fan operation is active in the on cycle.
When the heat or cool outputs are off (off cycle), the Fan output is off. The Fan icons (Auto, High, Med and
Low) are all turned off. The button can be activated in the off cycle. The appropriate Fan icon (High,
Med and Low) is turned on and the appropriate output is energized. It stays on this speed during the on cycle
as well as the off cycle. This is subject to the automatic fan speed default timer.
Warning: This mode should not be selected for hydronic applications with no control valves.
Excessive heating can result if the Fan is turned on manually.
A
uto Fan Speed Timer
Fan speed defaults back to Automatic after 1 hour (or 3 hours based on P1 flashing setting) if it is changed to
a particular speed.
Temperature setting
Press
or
button for setting the temperature in a range of 64 – 85
°
F . But High and Low setting will
depend on P5 and P6
Display will show the new temperature setting for 5 seconds.
T200 Manual changeover
In Cool mode, setting range will be 64-85
°
F or 70-85
°
F (set in P5).
In Heat mode, setting range will be 64-85
°
F or 64-78
°
F (set in P6).
T201 Auto changeover
Low setting temperature will be 64
°
F or 70
°
F (set in P5).
High setting temperature will be 85
°
F or 78
°
F (set in P6).
Note:
-
icon on LCD display
indicates the auto changeover model.
System status
Display at
shows when there is a demand for heating or cooling. The LCD icon will flash when
the delay time is activated. Default system delay time is 3 minutes.
Sensor Error Alarm
If the thermostat temperature sensor is defective, the thermostat will turn off the equipment and start flashing
“
SE
” on the display.
Auto Restart
All the setup parameters are stored in non volatile memory. When there is a power failure and return to
normal, the thermostat will resume operation with the previous setup parameters.
External Sensor
icon on LCD display indicates that the external sensor has been connected to terminal 2 and 3. In this
case the thermostat is controlling to the temperature sensed on the external sensor.
6
VTRONIX, LLC Po Box 267096, Weston, FL 33326
Copyright
©
2017 Vtronix Document no. 170064-110E (Rev.00)
