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Datasheet for Honeywell Home models including: XE70 SERIES T6374, T6375, Fan Coil Thermostats 4-Pipe Fan Coil Control
Versions are available with a manual 3-SPEED FAN switch, and with a system ON/OFF switch. Heat/cool changeover operation is also possible on some versions. This function can be accomplished by a manually operated HEAT/ COOL switch on the front of the thermostat, or in some versions, automatically by means of a fixed
Versions are available with a manual 3-SPEED FAN switch, and with a system ON/OFF switch. Heat/cool changeover operation is also possible on some versions.
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DocumentDocumentXE70 SERIES T6374/T6375 FAN-COIL THERMOSTATS 4-PIPE FAN-COIL CONTROL PRODUCT SPECIFICATION SHEET The T6374 and T6375 are designed to control the valves, or the valves and the fan in 4-pipe fan-coil applications, with the possibility of also being used for control of split units and small air conditioners. The thermostat operates the on/off valves to provide control at the desired setpoint temperature. The fan can also be controlled from the thermostat. It is wired to run continuously, and can be switched off with the system ON/OFF switch. Versions are available with a manual 3-SPEED FAN switch, and with a system ON/OFF switch. Heat/cool changeover operation is also possible on some versions. This function can be accomplished by a manually operated HEAT/ COOL switch on the front of the thermostat, or in some versions, automatically by means of a fixed deadband built into the thermostat between the heating and cooling setpoints. FEATURES · Dual diaphragm sensing element ensures close temperature control for all loads and applications · Attractive modern styling makes this thermostat ideal for locating in the occupied space, particularly in offices or hotels · Versions with heat anticipator, which improves temperature control in both heating and cooling operation · Thermostat mounts directly onto a wall or conduit box · Slide switches allow manual control of system operation and fan speed · Versions available with fixed deadband between heating and cooling operation · Optional extras available are : - range stops F42006646-001 (20 per pack, enough for 10 thermostats) xe70-en0r8404-uk07r1020 T6374/T6375 FAN-COIL THERMOSTATS 4-PIPE FAN-COIL CONTROL SPECIFICATIONS Model ON/OFF T6374C1004 T6375B1021 T6375B1013 T6375C1003 (SPST) 3-speed Fan (SPTT) Fan/ Auto/Cont Switches Heat/Cool Heat/Cool (SPDT) (SPDT) (DPDT) Heat/Off/ Cool (DPTT) Heat/Fan/ Cool (DPTT) Features Fixed Auto Deadband Change- over (Aquastat) Setpoint range : 10...30oC. By means of a large setpoint dial Supply voltage : 230 V~, 50...60 Hz Thermostat switch : S.P.D.T. Performance : Typical differential 1 oC (heating & cooling) at 20oC at 50% load with anticipator connected Electrical ratings : 4(2) A, 230 V~ Typical loads are fans, zone valves and relays Operational life : Greater than 100,000 cycles (all loads) for thermostat contacts at 230 V~ Greater than 6,000 operations for all manually operated switches Mounting : Mounts directly onto wall or wall-box (mounting screws supplied) Wiring : Up to 9 screw-in terminals per unit, capable of accepting wires up to 1.5 mm2 Enclosure : Plastic 2-piece housing Dimensions : 85 x 130 x 40 mm (w x h x d). Protection class : IP30 Environmental requirements : Operating temperature range 0 to 40oC Shipping and storage temperature range -20 to 50oC Humidity range 0 to 90% rh, noncondensing Approvals : The XE70 range is CE, RoHs and WEEE compliant. For regulatory information, DoC / CoC D0046 is available on request. Product must be wired as shown for CE compliance. DIMENSIONS xe70-en0r8404-uk07r1020 2 INSTALLATION Location The XE70 Series thermostat is the temperature control element in the fan-coil or air-conditioning system, and must be located in a position with good air circulation, on an inside wall about 1.5 m above the floor to sense the average temperature. Do not position the thermostat in draughts, near hot or cold air sources or where it will be affected by radiant heat from the sun or other appliances. Mounting the thermostat Any XE70 Series thermostat can be directly mounted on the wall or on a conduit box (see diagram). Mounting screws are supplied for both alternatives. Wiring the thermostat The standard wiring access is via a hole in the base of the thermostat, near the top edge. OPERATION Sensing element The thermostat sensing element comprises two circular, flexible metal plates welded together at the rims and encapsulating a gas/liquid combination whose pressure changes in response to variations in temperature. This dualdiaphragm expands and contracts with ambient temperature changes to operate a snap-acting switch which controls the heating or cooling circuit. Heat anticipator It is recommended that the heat anticipator is always connected for both heating and cooling operation. IMPORTANT 1. The installer must be a trained service engineer 2. Disconnect the power supply before beginning installation Switches All switches are slide switches for ease of operation. The ON/OFF switch is a system on/off switch, as it removes power from the thermostat. The FAN SPEED switch allows selection of 3 different fan speeds, 1 (low), 2 (medium), and 3 (high) The DPDT HEAT/COOL switch allows selection of either heating or cooling operation. There are 2 output terminals controlled by this switch. The HEAT/FAN/COOL switch allows selection of either heating or cooling operation, but also has an additional selection position which disables all outputs except that of the fan. The fan can be controlled separately, by the system ON/OFF switch. APPLICATION Ventilation 2-pipe fan-coil Application 4-pipe fan-coil Heatpump Air-conditioner Control Capability Heat or Cool Heat/cool Changeover (auto or manual) Fan control (auto or cont) Fan speed control Valve control Compressor control T6374C T6375B T6375B T6375C 1004 1013 1021 1003 auto manual manual auto cont cont cont xe70-en0r8404-uk07r1020 T6374/T6375 FAN-COIL THERMOSTATS 4-PIPE FAN-COIL CONTROL WIRING www.resideo.com Ademco 1 GmbH Hardhofweg 40 74821 Mosbach Phone: +49 1801 466 388 info.de@resideo.com homecomfort.resideo.com @2020 Resideo Technologies, Inc. All rights reserved The Honeywell Home trademark is used under license from Honeywell International Inc. This product is manufactured by Resideo Technologies, Inc and its affiliates. xe70-en0r8404-uk07r1020