Field Instruments

General

T6861 digital thermostats are designed for application of 3-speed fan and valves in fan coil system. Including: 2-pipe cool only/heat only/manual changeover and 4-pipe manual or automatic changeover Ventilation mode Manual or automatic 3-speed fan control Water valve control 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
• Horizontal and vertical model available for variant application
• Slim design, direct installation on 86 size box
• Stylish and elegant blue/green backlight with blue/ green colour ring
• 2-pipe/4-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 display
• Manual or automatic fan speed selection
• Remote temperature sensor
• Energy saving mode activation by button press or dry contact (key card)
• Cycle per Hour (CPH) function
• Adjustment of display room temperature
• Temperature unit either oC or oF
• User setting can be kept when power off
• Freezing protection function available
• Lock or unlock keys or part of keys in Installer Setup
• Heat and cool setpoint limitation for energy saving

Specifications

• Make: Honeywell
• Model: T6861H1WG
• Backlight: Green
• Power supply:   110 (+/-10%) VAC  
• Frequency: 50/60Hz
• Control algorithm: PI, On/off 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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