Model
1)HONEYWELL TF243WN/U (WHITE) DIGITAL THERMOSTAT (24VAC / 50/60HZ / 3VA)
Control M9124-GGA-2 JCI Damper Acuator2) HONEYWELL 50046096-001 NTC REMOTE SENSOR (R25°C=20K OHM) FOR TF243WN/U (WHITE) (OPTIONAL)
Replaced Model
1)T6865H2WB-R
2)T6571A1009 (24V/50/60HZ)
General
The TF243 series digital thermostat is designed for 3-speed fan and modulating valve control in a fan coil system, includ-ing:
2-pipe cooling only/heating only/manual changeover
Ventilation mode
Manual or automatic 3-speed fan control
Modulating water valve control
Besides the basic controls, TF243 series provide Random Start-up Function to maintain power grid stability.
In addition, Honeywell Memorized Time Off Function can automatically turn off the thermostat to save energy.
Features
Memorized time off
Random startup
Remote temperature sensor optional
Energy saving mode optional
LCD display with simple user interface
Room temperature or setpoint temperature display select-able
Manual or automatic fan speed selectable
Temperature units in either °C or °F
User setting can be stored when power loss
Freeze protection function available
Keypad lock options
Heating and cooling setpoint limitation
Specifications
Power supply 24(±10%)VAC, 50/60Hz
Modulating Output DC 0~10V
Accuracy ±1°C at 21°C
Auto Cycle times 100,000 times
Manual Cycle times 10,000 times
Protection class IP20
Set point range 10 ~ 32°C
Display range 0 ~ 37°C
Ambient operating limits 0~ +49°C
Ambient storage limits -30 ~ +60°C
Humidity limits 5~90% RH, non-condensing
Remote temperature sensor NTC20K
Action Type: 1
Pollution Degree 2
Protection against electric shock class Class II
Electronic control software class Class A
Rated Impulse Voltage: 2500V
Maximum Temperature 155°C
Relay wiring
Wire Sectional area
(Recommendation) 1.0~1.5mm2
Applied altitude up to 2000m above sea level
Rating Capacity
Working current for the whole product :
For Fan current 4(2)A
4A: When the load of the thermostat is resistance
2A: When the load of the thermostat is inductance
For valve control signal: 0-10V 16mA Max
US 795 
CN 172 
AU 100 
MY 81 
GB 62 
AP 55 
DE 54 
IE 49 
