Honeywell T775 Series Specifications

T775 Series 2000 Electronic

Stand-Alone Controllers

SPECIFICATION DATA

DESCRIPTION

The T775 electronic stand-alone controllers are the next generation of commercial and agricultural controls capable of remote sensing of temperature and providing switched and/or proportional outputs to various types of loads.

IMPORTANT

The T775 is an operating control, not a limit or safety control. If used in applications requiring safety or limit controls, a separate safety or limit control device is required.

FEATURES

•Easy-To-Use Graphical Interface Operating the new T775 is easy and the intuitive programming will save you time on every job. Each model includes a keypad lockout.

•NEMA 4X Enclosure Option Certain models are offered with NEMA 4X enclosures to protect them from water and corrosion for installations like washdown areas, animal confinement areas, swimming pools and other similar locations.

•Internal Time Clock Scheduler The Setback and Disable Output options, controlled by the built-in scheduler or digital input, will help save energy during unoccupied times and give you more control of the equipment without needing to purchase an additional time clock. Run times can be displayed for the first 4 relay outputs.

•Up To Two Independent Modulating Outputs Each output can be individually configured for 0-10 Vdc, 2-10 Vdc, 4-20 mA or Series 90.

•Modulating High Or Low Limit Control To protect your equipment from freezing or overheating, models offering this feature give you the ability to adjust your control temperature at Sensor A to protect equipment at Sensor B. The control adjusts its modulating output to prevent exceeding the user-entered High or Low limit for Sensor B.

•Optional Configurable Integral And Derivative Times

Standard on every device, this feature delivers pinpoint (PI or PID) control on modulating outputs set up by default to behave just like the previous T775 Series 1000, but now you can adjust reaction times and behavior, giving you more control. Anti-integral wind-up is standard.

•Reset Models With Simplified Setup Reset programming is easy. Simply enter the high and low control temperatures and the corresponding high and low outdoor temperatures. As your outside temperature gets colder, the setpoint temperature automatically adjusts to save energy.

•Configurable Minimum Off Time If needed, setting a minimum off time can protect equipment and reduce the need for a separate time delay device.

•Sensor Calibration Calibrate input sensors up to +/-10° F (+/-6° C) for temperature and up to +/-10% of range for other sensors (e.g. pressure, humidity) to compensate for resistance drops in longer sensor wire runs.

•Special Models Five T775 models are available for special applications:

—Universal Models (T775U2006 and T775U2016) to control pressure, humidity, or any medium with an analog input

—Special Boiler Model (T775P) for boiler control

—Special Staged Sequencing Model (T775L) for sequence staging of relays with one or two setpoints

—Special Expansion Model (T775S) for staging up to 12 relays with two setpoints

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T775 SERIES 2000 ELECTRONIC STAND-ALONE CONTROLLERS

SPECIFICATIONS

Power: 24, 120, or 240 Vac; 50/60 Hz

A separate earth ground is required for any power source.

Power Consumption:

•8 VA maximum at 60 Hz

•10 VA maximum at 50 Hz

Operating & Storage Temperature Ambient Rating:

•-40°F to 125°F (-40°C to 52°C) @ 50 Hz

•-40°F to 140°F (-40°C to 60°C) @ 60 Hz

Relative Humidity: 5% to 95% non-condensing

Dimensions: refer to Fig. 1 on page 4.

All T775 controllers are field-mountable in any orientation to either a panel or wall.

Digital Input (DI): 18 Vdc and 3.5 mA (for choosing external contact)

Digital Output (DO) Alarm (T775P only):

•Alternating Current (AC):

—30 Vac RMS; 1.5 A steady 3 A inrush P.F. 0.45 NC

—20 Vac RMS; 100 mA minimum load on NO and NC contacts

•Direct Current (DC): 1 mA at 100 mV DC minimum load

NOTE: In applications requiring a gold contact signal relay, an external signal relay or additional load resistor may be needed for the digital output.

Relay Contact Output Ratings (N.O. and N.C.):

•1/2 hp; 9.8 AFL, 58.8 ALR @ 120 Vac

•1/2 hp; 4.9 AFL, 29.4 ALR @ 240 Vac

•125 VA pilot duty @ 120/240 Vac

•10A @ 24 Vac (resistive)

Modulating Outputs:

•0-10 Vdc; drive a minimum of 2,000 Ohms

•2-10 Vdc; drive a minimum of 2,000 Ohms

•4-20 mA; drive a maximum of 600 Ohms

•Electronic Series 90; requires 340 Ohm resistor (included) across terminals R and W

•Floating

Sensed Temperature Limits (displayed):

•Minimum -60°F (-51°C)

•Maximum 270°F (132°C)

High Setpoint Limit: An irreversible high limit setpoint can be configured to meet local code requirements.

Sensed Temperature Accuracy:

•T775: 1°F/C @ ambient room temperature of 77°F (25°C)

•50021579-001 and T775-SENS-WR: ±0.42°F from -22°F to 248°F (+/-.24°C from -30°C to 120°C)

Setpoint Range: -40°F to 248°F (-40°C to 120°C)

Time Clock: Two settable time periods per day are standard on all models.

Volatile Memory: The date and time settings are retained for 24 hours after a power outage. After a power loss of more than 24 hours, the date and time settings may need to be reentered. All other settings are stored permanently.

Approvals: UL 60730-1 for US and Canada, CuL, C-tick

COMPATIBLE COMPONENTS

Temperature Sensorsa

The controller accepts 1,097 Ohms PTC at 77°F (25°C):

•50021579-001 – Standard sensor (included with all models except NEMA 4X models)

•T775-SENS-STRAP – Strap on sensor with wiring box

•T775-SENS-WR – Water resistant with 5 foot leads (included with NEMA 4X models)

•T775-SENS-WT – Watertight with 6 foot lead

•T775-SENS-OAT – Outdoor air temperature sensor

•C7031D2003 – 5 inch immersion sensor with wiring box (use immersion well; P/N 50001774-001)

•C7031J2009 – 12 foot duct averaging sensor with wiring box

•C7046D1008 – 8 inch duct probe with mounting flange

•C7100D1001 – 12 inch fast response, duct averaging sensor with flange

•C7130B1009 – Room mount sensor

Humidity Sensors (T775U only)

The controller accepts 0-10 Vdc or 4-20 mA input with a range of 0-100%

H7625, H7635, and H7655 models (available in 2, 3, and 5% RH accuracy) can be used.

Differential Pressure Sensors (T775U only)

P7640A and PWT pressure transducer models with selectable pressure ranges can be used.

The controller accepts pressure sensors with a signal output of 0-10 Vdc or 4-20 mA for any output range within the following ranges (the minimum and maximum for the sensor output range can be adjusted within the following limits):

•-500 to 500 PSI

•-30.0 to 30.0 inches w.c.

•-3,000 to 3,000 Pa

•-3,000 to 3,000 kPa

Universal Sensors (T775U only)

The controller accepts 0-5 Vdc, 0-10 Vdc or 4-20 mA input for temperature, pressure, humidity, etc. They may be programmed in units of °F, °C, %, Pa, kPa, PSI, Inches W.C., PPM, or None (no units). CO2 sensors (C7232 and C7632) are also compatible.

Actuators

For more information on compatible actuators or other Honeywell products, such as dampers and valves, go to www.customer.honeywell.com. From the home page select

Product Selection Tool under Products.

•Spring return models: ML6425, ML7425, MS4105, MS4110, MS4120, MS7505, MS7510, MS7520, MS8105, MS8110, MS8120

•Non-spring return models: ML6161, ML6174, ML7161, ML7174, MN6105, MN6110, MN7505, MN7510

Accessories

•107324A – Bulb Holder, duct insertion

•107408 – Heat Conductive Compound, 4 ounce

•50001774-001 – Immersion Well, stainless steel 304, 1/2 in. threading

aSee form 62-0265 – Temperature Sensors for the T775 Series 2000 Stand-alone Controller

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