Honeywell T6865 Series Large LCD Digital Thermostat

Honeywell T6865 Series Large LCD Digital Thermostat

INTRODUCTION

The Honeywell T6865 Series Large LCD Digital Thermostat is a digital thermostat designed for fan coil systems that integrates a wide range of functions and features for a variety of applications including offices, hotels and residential buildings.

Technical specifications

Operating power supply: 24VAC

Frequency: 50/60Hz

Control accuracy: ±1°C at 21°C

Load capacity: fan output capacity 4A (resistive) and 2A (inductive), valve output capacity 2A (resistive) and 1A (inductive)

Operating life: 100,000 cycles

Temperature setting range: 10~32°C

Temperature display range: 0~37°C

Protection class: IP20

Operating environment: Operating temperature of -1849℃, relative humidity of 590%

Features 

 • Super modern appearance design, suitable for office, hotel and residential building 

 • Slim design, direct installation on 86×86mm box or 3×3inch box 

 • Stylish and elegant green/blue backlight with white colour ring 

 • 2-pipe integrated into one unit with easy configuration 

 • Big LCD display with English and icons 

 • Easy to install and set-up 

 • Time on/off function 

 • Selectable room temperature or setpoint temperature display 

 • Manual or automatic fan speed selection 

 • Energy saving mode activation by button press or dry contact (key card) 

 • Adjustment of display room temperature 

 • Temperature unit either ℃ or ℉ 

 • User setting can be kept when power off 

 • Freezing protection function available 

 • Lock or unlock keys or part of keys in Installer Set-up ( ISU ) 

 • Heat and cool setpoint limitation for energy saving 

 • 24VAC power supply 

 • 230VAC fan load, 4A resistive and 2A inductive switch rating

Energy saving mode

A potential-free dry contact (such as hotel key card) or button press (pressing mode button for 3 seconds) can activate the energy saving mode with icon appearing on screen. The dry contact can be selected as normal open or normal close type in ISU.

If activated by dry contact, all buttons will be locked except the multi-key for ISU. If energy saving is activated by button press, pressing any button will stop energy saving mode. For heating mode, if the energy saving function is enabled, the setpoint will change to remote setback heating setpoint. The range of remote setback heating setpoint is from 10℃ to 21℃ and default value is 18℃. The value may change in ISU with step of 0.5℃.

For cooling mode, if the energy saving function is enabled, the setpoint will change to remote setback cooling setpoint. The range of remote setback cooling setpoint is from 22℃ to 32℃ and default value is 26℃. The value may change in ISU with step of 0.5℃.