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T6570, T8570 SERIES DIGITAL FAN-COIL THERMOSTATS

Automation and Control Solutions

Honeywell International Inc.

Honeywell Limited-Honeywell Limitée

1985 Douglas Drive North

35 Dynamic Drive

Golden Valley, MN 55422

Scarborough, Ontario M1V 4Z9

customer.honeywell.com

® U.S. Registered Trademark
© 2005 Honeywell International Inc.
95C-10897–6 M.A. Rev. 09-05

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Summary of Contents for T6570 Series

Page 1: ...t temperature with user activated temperature display Digital display shows mode icons when cooling or heating relays operate or when energy savings mode is active Push button setpoint adjustment Switches allow manual control of system operation and fan speed Energy savings mode external energy savings input from time switch occupancy sensors or hotel cardkey overrides comfort setpoint with setbac...

Page 2: ...ectrical box or on 4 x 4 Operating Range 5 C to 45 C 41 F to 113 F box with optional 272878 adapter plate Shipping and Storage Range 20 C to 55 C 4 F to 131 F Wiring 11 terminals screw in terminals capable of accepting Humidity Range 5 to 95 RH non condensing at 26 C up to 2 x 18 AWG 1 x 14 AWG or 1 5 mm2 wires Some 79 F terminals pre fitted with color coded flyleads Thermostat Output 1spdt or 2 s...

Page 3: ...Check the ratings given in the instructions and on the product to make sure the product is suitable for your application 3 Installer must be a trained experienced service techni cian 4 After installation is complete check out product opera tion as provided in these instructions CAUTION Electrical Shock or Equipment Damage Hazard Can shock individuals or short equipment circuitry Disconnect power s...

Page 4: ...ostat straight away from the wallplate 1 2 3 M15396 Fig 3 Removing the thermostat Thoroughly check wiring to the wallplate before finally mounting the thermostat on the wall OPERATION Control PROPORTIONAL INTEGRAL P I CONTROL Like a mechanical thermostat the T6570 T8570 Series have On Off control output However this output is regulated by a P I algorithm enabling the thermostat to control closer t...

Page 5: ...On the thermostat undergoes a startup and self checking sequence First all LCD display segments are illuminated to check the display Next a number appears to indicate the software version The final check is a check of the sensor On completion of the startup sequence after approximately 2 seconds the thermostat will resume normal control in either Comfort or Economy mode On initial power on the tem...

Page 6: ...de The thermostat allows many of its operating parameters to be adjusted via an Installer Setup Mode Each operating parameter has a two letter identifier code which is shown on the display during the Installer Setup Mode programming sequence A description of these is shown in Table 5 PROGRAMMING PARAMETERS The installer setup mode is accessed by reducing the setpoint to 10 C 50 F waiting 3 seconds...

Page 7: ...nt Low Limit CL Sets the minimum allowable cooling setpoint 10 10 to 30 50 50 to 90 Maximum Heating Setpoint High Limit HL Sets the maximum allowable heating setpoint 30 10 to 30 90 50 to 90 Energy Savings Configuration ES Activate energy savings mode by a choice of either contact closure or contact opening 1 1 normally open 0 normally closed 1 1 normally open 0 normally closed Display of Room Tem...

Page 8: ...hangeover switch continuous fan switch Fig 11 Wiring 4 pipe auto heat cool changeover Fig 8 Wiring 2 pipe seasonal heat cool changeover with external aquastat fan On Auto switch Fig 12 Wiring 4 pipe auto heat cool changeover with fan On Auto switch Fig 9 Wiring 2 pipe heat cool with manual heat cool changeover switch continuous fan or cycled fan 95C 10897 6 8 ...

Page 9: ...provides 24 Vac power three interlocked fan relays and wiring center terminations for valve relay and contactor loads The W6380 schematic can be found in Fig 14 Fig 16 Wiring 2 pipe 24V heat thermostat with fan On Auto switch Fig 17 Wiring 2 pipe heat cool with manual heat cool changeover switch continuous or cycled fan Fig 14 W6380 wiring diagram Fig 15 Wiring 2 pipe 24V cool only thermostat with...

Page 10: ... use this for control To extend the sensor cable up to a maximum of 70 feet 20m use only shielded cable For example Beldfoil 18 AWG cable is a suitable cable The sensor connections are polarity sensitive so be sure to connect the shielded wire to the sensor blue wire as shown in Fig 21 below Fig 21 Wiring optional remote sensor for the T8575D model CAUTION Equipment Damage Hazard Operation at low ...

Page 11: ...T6570 T8570 SERIES DIGITAL FAN COIL THERMOSTATS 95C 10897 6 11 ...

Page 12: ...Solutions Honeywell International Inc Honeywell Limited Honeywell Limitée 1985 Douglas Drive North 35 Dynamic Drive Golden Valley MN 55422 Scarborough Ontario M1V 4Z9 customer honeywell com U S Registered Trademark 2005 Honeywell International Inc 95C 10897 6 M A Rev 09 05 ...

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