Honeywell Home TF243 Series - Digital Thermostat Manual

Thermostat Appearance

Operating Your Thermostat

Power On/Off Time-off

• Press to switch on/off thermostat. When in off mode, OFF icon and indoor temperature will display.
• Press could set the automatical turn off time when the thermostat is working.
  Press and hold for more than 3s. After timer icon flashes, press or to set turn off time, then press button to exit.

Temperature Setting

In or mode, press or to set the target room temperature.

Operating Mode

Heating	Cooling	Ventilation

Fan Speed

Auto	Low Speed	Medium Speed	High Speed

LCD Display

Trouble Shooting Tips

If....	Then....
Doesn't work	Set the mode to (heating mode) by press Make sure the temperature is set above the room temperature Wait 5 minutes for the system to respond
Doesn't work	Set the mode to (cooling mode) by press Make sure the temperature is set below the room temperature Wait 5 minutes for the system to respond
Doesn't work	Make sure keypad is unlocked Check that the thermostat is on
Doesn't work	Make sure keypad is unlocked Make sure the system isn't in mode Check that the thermostat is on
The system turns off automatically	Make sure the memorized time off value isn't set to "0"
Time-off doesn't work	Make sure the button is unlocked Make sure the turn off time is not 0 Make sure the thermostat is not in ISU Make sure the thermostat is not off

Installation Guide

Must be installed by a trained and experienced installer

• Read instruction carefully. Failure to follow instruction will damage the product or cause a hazardous condition.
• Check the ratings in this booklet to verify that this product is suitable for your application.
• Always test for proper operation after installation.

ELECTRICAL HAZARD can cause electrical shock or equipment damage. Disconnect power before installation, reparation and detachment.

The manual interpretation is owned by Honeywell Home Co.,Ltd, we retain the rights that improve the products described in this manual without prior notice.

Installation Tips

TF243 Series is designed for standard 75x75x50mm wall mounting box installation. Install the thermostat about 5 feet (1.5m) above the floor in an area with good air circulation at average temperature.

Do not install in locations where the thermostat can be affected by:
Dead spots behind doors and in corners

• Hot or cold air from ducts
• Sunlight or radiant heat from appliances
• Concealed pipes or chimneys
• The temperature of mounting box and wall should be in the operating temperature range.

Wiring and Installation

The screw must be locked tightly to avoid wire break off from the terminal. The wire should not be tangled and stucked between front case assembly and back case.

Terminal Designations

* Input rating: 24VAC(+10%, -10%) 50/60Hz 220/230VAC(+10%, -10%) 50/60Hz *
The vO terminal RL>600 ohms

Two pipe application

Wiring Diagram

Valve type: Honeywell Home VC7931 Series

* The 24VAC power supply should meet Class2 SELV and less than 100VA
* A FUSE or BREAKER is necessary before L terminal.

Installation Setup

3s Enter or Exit Installation Setup Mode

ISU Code	Description	Possible Options
1	System Type	0 Heat only
		1 Cool only
		2 Two pipes heating/cooling (Default)
2	Remote Sensor	0 Onboard sensor (Default)
		1 Remote sensor (NTC20K)
3	Temperature Scale	0 ºF
		1 ºC (Default)
4	Fan Control Type	0 Auto only Auto has fan ramping algorithm
		1 Manual only (3 speed: Low->Med->High-> Low)
		2 User can choose Auto or Manual (Default) (Low->Med->High-> Auto-> Low)
8	Display Temperature Adjustment	-2 ºC- 2 ºC, step 0.5 ºC, Default 0 ºC (-4 ºF- 4 ºF, step 1 ºF, Default 0 ºF )
9	Temperature Display Mode	0 Display room temperature (Default)
		1 Display setpoint
10	Heating Range Stops	10-32 ºC Default 32 ºC (50-90ºF Default 90 ºF)
11	Cooling Range Stops	10-32ºC Default 10 ºC (50-90ºF Default 50 ºF)
12	Keypad Lockout	0 All keys are available (Default)
		1 System button locked out
		2 Fan and System buttons locked out
		3 All buttons locked out except power button
		4 All buttons are locked
13	Remote Setback Enable Method	0 Hotel card NO
		1 Hotel card NC
		2 Button (Default)
14	Remote Setback Heating Setpoint	Range 10-21ºC Default: 18 ºC (Range 50-70ºF Default: 64 ºF)
15	Remote Setback Cooling Setpoint	Range 22-32ºC Default: 26 ºC (Range 72-90 ºF Default: 79 ºF)
16	Freeze Protection	0 Disabled
		1 Enabled (Default)
17	Power Recovery Status	0 OFF
		1 Previous status (Default)
19	Fan Mode In ES Mode ES Mode	0 Run as Auto fan speed when ISU_4=2 (Default)
		1 Run as Low fan speed when ISU_4=2

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