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Manual Honeywell T775U

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  • Honeywell T775U - page 1

    INST ALLA TION INSTRUCTIONS 62-0255-07 E4436 T775U Series 2000 Electronic S t and-Alone Controller PRODUCT DESCRIPTION The T775 ele ctronic stand-alone controllers are th e next generation of universal contro ls capable of remot e sensing of tem perature, hum idity , pressure, etc. and providing switche d and proportion al outputs to variou s types ...

  • Honeywell T775U - page 2

    T775U SERIES 2000 ELECTRONIC STAND-ALONE CONTROLLER 62-0255—07 2 T emperature Sensors a (Sensor A or B) The contr oller accept s 1,097 Ohms PTC at 77°F (25°C): • 50021579-001 – S tandard sen sor (included with all models exc ept NEMA 4X models ) • T775-SEN S-WR – Wa ter resist ant with 5 foot leads (include d with NEMA 4X mod els) • T ...

  • Honeywell T775U - page 3

    T775U SERIES 2000 ELECTRONIC S TAND-ALONE CONTROLLER 3 62-0255—0 7 Controller Dimensions Fig. 1. T775U Dime nsions in inches (mm) . BEFORE INST ALLATION Review th e “Specific ations” on p age 37 before installing the controller. When Inst alling This Product 1. Read these instruction s carefully . Fa ilure to follow them could da mage the pro ...

  • Honeywell T775U - page 4

    T775U SERIES 2000 ELECTRONIC STAND-ALONE CONTROLLER 62-0255—07 4 Use a screwdriver to pry out on ly the knockouts that you will use. If mounting on DIN rail, be sure to remove th e knockouts before mou nting. See “Cont roller Wiring ” on page 7 and Fig. 12 on page 9 for re commended k nockout us age and locations. If you do not use an opened ...

  • Honeywell T775U - page 5

    T775U SERIES 2000 ELECTRONIC S TAND-ALONE CONTROLLER 5 62-0255—0 7 Fig. 3. Paralle l-series wiring of sensors. T emperature Sens or Wire T ype and Size T emperature sens ors use standard AWG 18/2 u nshielded wire. For cab le runs greate r than 25 f eet or where electrical interf erence may be a problem , shielded cable is recommend ed. See Fig. 4 ...

  • Honeywell T775U - page 6

    T775U SERIES 2000 ELECTRONIC STAND-ALONE CONTROLLER 62-0255—07 6 Fig. 5. Sensor Wiring — 3-wire shie lded cable connection from Sensor A to 0-10 Vdc sensor (H76xx h umidity sensor shown). Fig. 6. Sensor Wiring — 2-wire shie lded cable connectio n from 4-20 mA senso r to T775 control ler (loop powered wiring). Fig. 7. Se nsor Wiring — 2-wire ...

  • Honeywell T775U - page 7

    T775U SERIES 2000 ELECTRONIC S TAND-ALONE CONTROLLER 7 62-0255—0 7 Controller Wiring WARNING Electrical S hock Hazard. Can cause seve re injury , death or propert y damage. Disconnect power supply before be ginning wiring, or making wiring connect ions, to preve nt electrical shock or equipment da mage. CAUTION Do not use 24 V ac power to power a ...

  • Honeywell T775U - page 8

    T775U SERIES 2000 ELECTRONIC STAND-ALONE CONTROLLER 62-0255—07 8 Controller Wiring Det ails The wiring conn ection terminals are shown in Fig. 1 1 and are described in T able 2. See F ig. 12 – Fig . 18 beginning on page 9 for typical T77 5U wiring applications . Fig. 1 1. T775U T erminal an d Feature Loca tions. T able 2. Descript ion of Wiring ...

  • Honeywell T775U - page 9

    T775U SERIES 2000 ELECTRONIC S TAND-ALONE CONTROLLER 9 62-0255—0 7 WIRING APPLICATION EXAMPLES Fig. 12 – 18 illustr ate typical contro ller wiring for variou s applications. NOTE: The electr onic Series 90 outp ut provided w ith modulating T775 models c an not drive ele ctro- mechanical slidewir e devices like ol der Series 3 modulatin g meters ...

  • Honeywell T775U - page 10

    T775U SERIES 2000 ELECTRONIC STAND-ALONE CONTROLLER 62-0255—07 1 0 Fig. 17. Wi ring for Series 90 Modutr ol Motor Control. Fig. 18. Wi ring for Changeo ver Relay and Minimum Position Pote ntiometer used with Series 90 Modutro l Motors. CHECKOUT Inspect al l wiring conn ections at the controller t erminals, and verify comp liance with the ins tall ...

  • Honeywell T775U - page 11

    T775U SERIES 2000 ELECTRONIC S TAND-ALONE CONTROLLER 1 1 62-0255 —07 Fig. 19 shows how sensor resistance varies with temperat ure for a sens or having a pos itive temper ature coefficient (PTC) of 2.1 Ohms per degre e F (3.85 Ohms per degr ee C). Fig. 19. Sen sor Resistance vs. Temperature. INTERFACE OVERVIEW The T775U co ntroller uses an LCD pan ...

  • Honeywell T775U - page 12

    T775U SERIES 2000 ELECTRONIC STAND-ALONE CONTROLLER 62-0255—07 1 2 Up and Down Arrow Butto ns ( S and T ) Use thes e buttons to m ove your sele ction up and d own through a m enu or list. • When the desired item is highligh ted, you press the X arrow button to display that item’s con tent. • When a val ue is displayed (e.g. 70°F), th e up ...

  • Honeywell T775U - page 13

    T775U SERIES 2000 ELECTRONIC S TAND-ALONE CONTROLLER 13 62-0255—0 7 NOTES: 1. If you pr ess the HOME bu tton or there is no keypad activity for fo ur minutes, you ex it Program mod e and return to th e home screen. 2. If you pr ess the MENU button , you exit and return to the menu. PROGRAMMING OVERVIEW The controller must be prog rammed be fore b ...

  • Honeywell T775U - page 14

    T775U SERIES 2000 ELECTRONIC STAND-ALONE CONTROLLER 62-0255—07 1 4 Setup Procedure The Setup pro cess uses a h ierarchical men u structure that is easy to use. Y ou press the W and X arrow button s to move forwar d and back ward through the menus. NOTE: T he menus can display only those relays tha t are defined in Setup (see “1. 3.2. NBR OF REL ...

  • Honeywell T775U - page 15

    T775U SERIES 2000 ELECTRONIC S TAND-ALONE CONTROLLER 15 62-0255—0 7 Fig. 27. Set up - Sens ors - Sens or A - T ype. 1.2.2.1. TYPE (Sensor A only) 1. From the Sensor A selections, us e the S and T buttons to h ighlight TYPE. 2. Press the X b utton to display the type values. 3. Use the S and T butto ns to highlight the desired value PT1000 (1 097 ...

  • Honeywell T775U - page 16

    T775U SERIES 2000 ELECTRONIC STAND-ALONE CONTROLLER 62-0255—07 1 6 Fig. 30. Setup - Sensors - Sensor A - 0-5V , 0-10V , OR 4-20MA - MI N and MAX V alue (showing °F ). 1.2.2.2.3. MIN or MAX V ALUE (Sensor A only; 0-5V , 0-10V or 4-20mA) The minimum an d maximum valu es display only fo r Sensor A when its type is 0-5V , 0-10V or 4 -20MA. 1. From t ...

  • Honeywell T775U - page 17

    T775U SERIES 2000 ELECTRONIC S TAND-ALONE CONTROLLER 17 62-0255—0 7 Fig. 33. Setup - Se nsors - Sensor A - Exit. 1.2.2.5. Exi t Sensor A Setup Press the W button to exit Sensor A selections an d return to the Senso rs menu. or Use the S and T buttons to highlight EX IT and pres s the X button. Continue with “1.2 .3. SENSOR B (T emperature only) ...

  • Honeywell T775U - page 18

    T775U SERIES 2000 ELECTRONIC STAND-ALONE CONTROLLER 62-0255—07 1 8 Fig. 36. Setu p - Outputs - Modulating Outpu t Menu. 1.3.1. Sett ing up the Modulating Output s 1. From the Outp ut menu, use th e S and T buttons to highlight the d esired modula ting output (M OD 1 or MOD 2). 2. Press the X b utton to display the selected MOD menu. Use the rema ...

  • Honeywell T775U - page 19

    T775U SERIES 2000 ELECTRONIC S TAND-ALONE CONTROLLER 19 62-0255—0 7 NOTES: (Integra l Tim ing) 1. The Integral ti me is factory set f or 400 seconds . This is a good mid dle range and s hould satisf y many applications. T he integral time ca n be increased for applications wher e sensed respon se is slow , and can be decrease d for application s ...

  • Honeywell T775U - page 20

    T775U SERIES 2000 ELECTRONIC STAND-ALONE CONTROLLER 62-0255—07 2 0 Fig. 42. Setup - Outputs - Mod Out - Reset. 1.3.1.6. R ESET This selection enable s the controller ’s Reset function , and allows each out put to be individ ually programmed for Reset or No Reset. IMPORTANT T o use the Res et function of the contro ller , the first modulatin g o ...

  • Honeywell T775U - page 21

    T775U SERIES 2000 ELECTRONIC S TAND-ALONE CONTROLLER 21 62-0255—0 7 Fig. 45. Setup - O utputs - Number of Relays. 1.3.2. NBR OF RELA YS 1. From the Out puts menu , use the S and T buttons to highlight # RELA YS . 2. Press the X button to displa y the number of re lays. 3. Use the S and T butto ns to display the number from 1 to 2. 4. Press the X ...

  • Honeywell T775U - page 22

    T775U SERIES 2000 ELECTRONIC STAND-ALONE CONTROLLER 62-0255—07 2 2 Fig. 48. Se tup - Out puts - Options - M in Off/On Time. 1.3.3.2. MIN O FF or MIN ON This is the minimum number of seconds of “o ff ti me” or “on time” f or all relays. 1. Press the X b utton to display the Min Off/On value. 2. Use the S and T buttons t o increase/dec reas ...

  • Honeywell T775U - page 23

    T775U SERIES 2000 ELECTRONIC S TAND-ALONE CONTROLLER 23 62-0255—0 7 Fig. 50. Setup - Output s - Options - Show Runti me. 1.3.3.4. SHOW RT (show run time hours) 1. Press the X b utton to display the Show RT values. 2. Use the S and T buttons to sele ct YES or NO. Default: YES 3. Press the X button to accept the v alue and ret urn to the Optio ns m ...

  • Honeywell T775U - page 24

    T775U SERIES 2000 ELECTRONIC STAND-ALONE CONTROLLER 62-0255—07 2 4 Fig. 54. Setup - Outputs - Relay - Reset. 1.3.4.2. R ESET IMPORTANT For relays to use the Reset function of the con- troller , both m odulating outputs (M OD 1 and MOD 2) must be set for Rese t. Relays that have Reset se t to YES use the reset curve configured fo r MOD 1. 1. Press ...

  • Honeywell T775U - page 25

    T775U SERIES 2000 ELECTRONIC S TAND-ALONE CONTROLLER 25 62-0255—0 7 2. PROGRAMMING OUTPUTS (MOD AND RELAY) WITH NO RESET The T775U ca n be program med for Reset or No Reset. From the factory , the T775 U is progra mmed for No Reset. This sect ion describe s the step s necessary to program the controller f or No Reset. NOTE: For a pplications wher ...

  • Honeywell T775U - page 26

    T775U SERIES 2000 ELECTRONIC STAND-ALONE CONTROLLER 62-0255—07 2 6 Fig. 60. Program - Setback. 2.1.3. SETBA CK The Setback temperature op tion displa ys only if scheduling is en abled (see Fig. 47 on page 21) or the DI Option is set to Setback. (see Fi g. 49 on page 22). This is the de sired setpoint temp erature that you want to use during se tb ...

  • Honeywell T775U - page 27

    T775U SERIES 2000 ELECTRONIC S TAND-ALONE CONTROLLER 27 62-0255—0 7 Fig. 63. Program - Action. 2.1.6. A CTION 1. From the menu , use the S and T buttons to high- light ACTION. Default: HEA T 2. Press the X b utton to display the action selection s. 3. Use the S and T buttons to se lect the desired value. 4. Press the X b utton to accep t the high ...

  • Honeywell T775U - page 28

    T775U SERIES 2000 ELECTRONIC STAND-ALONE CONTROLLER 62-0255—07 2 8 3. PROGRAMMING OUTPUTS (MOD AND RELAY) WITH RESET The T775U c an be programm ed for Reset or No Reset for each output. F rom the facto ry , the T775U is prog rammed for No Reset. This s ection describes the steps necessary to program t he controller fo r Reset. T o use the Reset f ...

  • Honeywell T775U - page 29

    T775U SERIES 2000 ELECTRONIC S TAND-ALONE CONTROLLER 29 62-0255—0 7 Fig. 65. Rese t Curve for M OD 1 with Se tback Off set. NOTE: For MOD 2 an d the Relays, a setpoint of fset is used. See “3.3.1. SET POINT OFFS ET (MOD 2 only)” on page 32. The remaind er of this sect ion beginnin g with “3.2. Program Men us for Outputs with Re set” on pa ...

  • Honeywell T775U - page 30

    T775U SERIES 2000 ELECTRONIC STAND-ALONE CONTROLLER 62-0255—07 3 0 Fig. 69. Program - Sen sor A Min. Setpoint. 3.2.3. SP MI N A2 or BOILER M IN (Setpoint mi nimum for Sensor A) 1. From the menu , use the S and T buttons to high- light BOILER MIN or SP MIN A2. 2. Press the X b utton to display the setpoint value. 3. Use the S and T buttons t o inc ...

  • Honeywell T775U - page 31

    T775U SERIES 2000 ELECTRONIC S TAND-ALONE CONTROLLER 31 62-0255—0 7 Fig. 72. Program - Ac tion Selection. 3.2.6. A CTION For the MO D 1 output (a nd for outpu ts with RESET=NO), the ACTION sele ction displays. For all other output s with RESET=YES, the ACTION selection does not display; continue with “3.2. 7. SETBACK OFFSET (if configured)” o ...

  • Honeywell T775U - page 32

    T775U SERIES 2000 ELECTRONIC STAND-ALONE CONTROLLER 62-0255—07 3 2 Fig. 74. Program - Setpoint Offset ( MOD 2 only). Fig. 75. R eset Curve w ith Offset fo r MOD 2. 3.3. Second Modulating Output and Relays For the sec ond Modulati ng Output and t he two Relay s (if they are configure d for Reset), the Offset parameter displays on the Program menu ...

  • Honeywell T775U - page 33

    T775U SERIES 2000 ELECTRONIC S TAND-ALONE CONTROLLER 33 62-0255—0 7 4. SCHEDULING Scheduling provides the ability to set daily temperatu re settin gs for up to two e vents per da y . Ty pically , these ar e the daytim e (setpoint) and the nightt ime (setback ) settings. IMPORTANT T o enable Sche duling, you must fir st enter Setup mode (pres s an ...

  • Honeywell T775U - page 34

    T775U SERIES 2000 ELECTRONIC STAND-ALONE CONTROLLER 62-0255—07 3 4 Fig. 78. Schedul e - Options - Sys tem Time. 4.2.1. SET TIME Setting the system time is required to enable the controller to follow daylight saving t ime. IMPORTANT Set the Dat e before setting the Time. See “4.2.2. SET DA TE”. 1. From the Opt ions menu, use the S and T button ...

  • Honeywell T775U - page 35

    T775U SERIES 2000 ELECTRONIC S TAND-ALONE CONTROLLER 35 62-0255—0 7 Fig. 81. Schedu le Event Menu (Showing M ON-FRI). 4.3. Setting In dividual Schedules As shown in the Schedu le menu (Fig. 76 on page 33), schedules can be set for the following time period s: • Monday thro ugh Friday • Saturday and Sunday • Individual days of the week 1. Fr ...

  • Honeywell T775U - page 36

    T775U SERIES 2000 ELECTRONIC STAND-ALONE CONTROLLER 62-0255—07 3 6 Fig. 83. Schedul e - Event 1 Time . 4.3.2. E1 TIME (time for event 1) 1. From the sele cted time period me nu, use the S and T buttons to h ighlight E1 TI ME. 2. Press the X b utton to display the current time s et- ting for ev ent 1. 3. Use the X button t o cycle between the hour ...

  • Honeywell T775U - page 37

    T775U SERIES 2000 ELECTRONIC S TAND-ALONE CONTROLLER 37 62-0255—0 7 SUMMARY MENU The Summary menu provid es the ability to view the schedule (E1 and E2 times) fo r each relay for ea ch day of the week. NOTE: Schedulin g must be enabled f or the Summary menu to displa y . Enablin g the schedule is determined in the Setup proc ess for the Out put O ...

  • Honeywell T775U - page 38

    T775U SERIES 2000 ELECTRONIC STAND-ALONE CONTROLLER 62-0255—07 3 8 DoC Emissions Com pliance EN 55022: 20 06 CISPR 22: 2006 VCCI V -3/2006.04 ICES-003, Is sue 4: 2004 FCC P ART 15 SUBP ART B Class B Limit Immunity Compliance EN 61000-6- 1: 2001 cover ing EN 61000-4- 2: 1995 + A 1: 1998 + A 2: 2001 EN 61000-4- 3: 2002 EN 61000-4- 4: 2004 EN 61000- ...

  • Honeywell T775U - page 39

    T775U SERIES 20 00 CONTROLLER 39 62-0255–07 ...

  • Honeywell T775U - page 40

    T775U SERIES 2000 ELECTRONIC STAND-ALONE CONTROLLER Automation and Con trol Solutions Honeywel l Internatio nal Inc. 1985 Douglas Drive N orth Golden Valley, MN 55422 Honeywell Limited-Hon eywell Limitée 35 Dynamic Drive Toronto, Ontario M1V 4Z9 customer.honey well.com ® U.S. Reg istered T rademark © 2009 Honeyw ell Internatio nal Inc. 62-0255? ...

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