Field Instruments

General

T6865 digital thermostats are designed for application of 3-speed fan and modulating valves in fan coil system.  

Including:

• 2-pipe cool only/heat only/manual changeover
• Fan speed can be selected to automatic or manual 3-speed control mode.
• In ventilation mode, fan only support manual speed control.

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

Specifications

• Make: Honeywell
• Model: T6865H2WB
• Backlight: Blue
• Power supply:   24 VAC  
• Frequency: 50/60Hz
• Control algorithm: PI, Modulating output
• Accuracy: +/-1oC at 21oC
• Rating capacity For 220V power supply:  4(2)A for fan load, 2(1)A for zone valve  For 110V power supply:  4(2)A for fan load, 2(1)A for zone valve
• Cycle times: 100,000
• Setpoint range: 10~32oC
• Display range: 0~37oC
• Installation:  Installed on 86×86mm junction box or US2×4 inch.
• Protection Class: IP20    

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