Honeywell T775P 2000 Series Installation Instructions Manual

Honeywell T775P 2000 Series Installation Instructions Manual Manual pdf 1 page image

INSTALLATION INSTRUCTIONS62-0256-11E4436T775P Series 2000 ElectronicStand-Alone ControllerPRODUCT DESCRIPTIONThe T775 electronic stand-alone controllers are the nextgeneration of commercial and agricultural controlscapable of remote sensing of temperature and providingswitched and/or proportional outputs to various types ofloads. A built-in time clock is standard.The T775P can be configured with or without Resetcontrol from a single heat or cool setpoint.Three sensors are configurable. In normal installations,Sensor A is the supply controlled temperature, Sensor Bis the outdoor controlling (reset) temperature, andSensor C is the return controlled temperature, which canbe used for the Differential alarm and/or as the controlledsetpoint sensor.The T775P can be configured with up to two T775SExpansion Modules for a maximum of up to 12 stageswith the last stage being an option for a pump stage.IMPORTANTThe T775P is an operating control, not a limit orsafety control. If used in applications requiringsafety or limit controls, a separate safety or limitcontrol device is required.Table 1. T775P Controller Configuration.Controller Model DescriptionOutputResetSPDT RelayOutputsDigitalOutputDigitalInputSensorInputsNumber ofSensorsIncludedStageControlAddableT775S EnclosureT775P2003 a BoilerModelwith ResetYes 4b 1 1c 3 3 Yes Yes NEMA 1a The T775P model can be used to stage multiple relays from a single heat or cool setpoint. The number of stages can be freely chosen, limitedby the number of relays available (up to 12 stages [11 if using the pump output] using two T775S expansion modules).b The T775P provides a pump output using the last of the four SPDT relay outputs on the T775P controller. When T775S Expansion Modules areused, the configurable pump output is the last relay output of the last expansion module. The pump output will be either stage 4, 8, or 12,depending on whether T775S Expansion module(s) are used.c The T775P includes a digital input for use with the disable or setback option.