Installation Guide for TotaHome models including: TTH2C, 50051987-004 A, CM900 Digital Timer, CM900, Digital Timer, Timer
Dec 17, 2024 — The Digital Timer is designed to work with your existing thermostat, heating and hot water. It can work automatically, or you can adjust it manually to maintain ...
Dec 17, 2024 · User Manual. 3. About your Digital Timer. Features ... The Digital Timer is designed to work with your existing thermostat, heating and hot water.
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DocumentDocumentDIGITAL TIMER 7-DAY / 2-CHANNEL User & Installation Guide TTH2C 50051987-004 A This product must be correctly installed and configured to work properly. If you are not experienced in electrical wiring, we recommend professional installation to avoid possible personal injury or equipment damage. DISCONNECT ELECTRIC POWER BEFORE INSTALLATION: Can cause electrical shock or equipment damage. DISPOSAL AND RECYCLING: Waste electrical products should not be disposed of with household waste. Please recycle where these facilities exist. Check with your local authority or retailer for recycling advice. Contents About your Digital Timer Features ......................................................4 Quick reference to controls .......................5 Date/time settings .....................................6 Operation and programming Operating modes........................................7 Cost-saving programme schedules ..........8 To adjust programme schedules ..............9 Special functions Temporary schedule overrides................10 Extra Hour.................................................11 Holiday mode ...........................................12 Advanced features ...................................13 User Manual Installation and setup System installation ..................................14 Wall bracket installation .................... 15-16 System wiring..................................... 17-20 Installer setup..................................... 21-25 Appendix Alternate programme schedules ............26 3 User Manual About your Digital Timer The Digital Timer is designed to work with your existing thermostat, heating and hot water. It can work automatically, or you can adjust it manually to maintain a comfortable indoor environment while minimising energy use and costs associated with heating both your home and the hot water you require. Features · Energy-saving design: Automatically activates or shuts down your heating and hot water up to six times per day to fit your lifestyle while saving energy costs. Each day of the week can be programmed separately (see pages 8-12). · One-touch comfort control: Allows you to override programmed settings at any time by turning your heating or hot water on or off -- or by extending an "on" period by up to three hours. · Holiday button: Turns off your heating and hot water for up to 99 days while you are away, then resumes normal operation when you return (see page 12). · Seasonal clock change: Automatically adjusts the clock for seasonal changes in the spring and autumn to adjust for standard time or daylight savings time. · Lifetime memory: Saves your customised settings indefinitely, even if the mains power supply fails. 4 Quick reference Press to extend hot water heating (see page 11) Current time Line of Current text area day Daily programme periods (see page 8) Operating modes (see page 7) Light is on when hot water heater is on Press to override hot water (see page 10) Press to programme next day (see page 9) Press to copy a daily programme schedule (see page 9) "Holiday" button (see page 12) Mode buttons (see page 7) mon tue wed thu fri sat sun 30/12/2021 12:34 PM cont cont once once auto on 1 on 2 on 3 auto off off 1 off 2 off 3 off -- + -- + RUN Press to change time Press to save changes and or advance in menus advance to next step 5 User Manual Press to extend heating time (see page 11) Light is on when heating system is on Press to override heating programme (see page 10) Slider (set to RUN except during programming) Remove cover to use controls Operation and Programming Date/time settings Set to DAY/TIME To change the date or time, set the slider to DAY/TIME. mon tue wed thu fri sat sun SET THE DAY Use the + or - buttons to set the correct day, then press the OK button. Follow the same procedure to set month, year and time. RUN 30 Date and time are set at the factory and should not need to be changed unless you turn off the automatic daylight savings feature (see pages 21-23). Press + or - to change IS DAY OK? 31 TIP: While setting the time, press and hold the +/- buttons to change the clock time more rapidly. Press OK to save SET THE MONTH 12 6 Operating modes HOT WATER HEATING mon tue wed thu fri sat sun 30/12/2021 12:34 PM cont cont once once auto on 1 on 2 on 3 auto off off 1 off 2 off 3 off Press to change hot water operating mode Press to change heating operating mode Operation and Programming Press the MODE button repeatedly to select an operating mode. You can set the Hot Water and Heating modes separately, by pressing the appropriate button as shown at left. Both work the same way: Cont: Heating or Hot Water remains on continuously. Auto: In this mode the Digital Timer follows a daily schedule for the Hot Water or Heating, turning each on and off at preset times during the day (see page 8). Once: In this mode the Heating or Hot Water is turned on at the first programmed "On" time of the day, and remains on until the last programmed "Off" time (see page 8). Off: Heating or Hot Water remains off at all times. 7 Operation and Programming Cost-saving programme schedules The Digital Timer is preset at the factory to turn off your home heating and hot water when they're less likely to be needed. The preset schedules are shown below. To change them, see pages 9-12. (See also two alternate schedules on page 25). To run this schedule (as shown below, or as you've modified it), leave the MODE buttons set to Auto. You can make temporary adjustments at any time (without changing the schedule) by pressing the EXTRA HOUR or OVERRIDE buttons (see pages 10-11). Default on/off times (Schedule A) Monday-Friday ON 1 Heating 6:30am [off 1] ON 2 [off 2] 8:30am 12:00pm 1:00pm ON 3 [off 3] 4:30pm 10:30pm Hot water 6:30am 8:30am 12:00pm 1:00pm 4:30pm 10:30pm Saturday-Sunday ON 1 [off 1] ON 2 [off 2] ON 3 [off 3] Heating 6:30am 9:30am 12:00pm 1:00pm 4:30pm 11:00pm Hot water 6:30am 9:30am 12:00pm 1:00pm 4:30pm 11:00pm TIP: To review your schedule quickly, move the slider to Hot Water or Heating, then press the OK button repeatedly to see each on/off time period. RUN 8 To adjust programme schedules Operation and Programming Set to HOT WATER or HEATING The Hot Water and Heating schedules must be programmed independently, but the procedure is the same for both. mon tue wed thu fri sat sun 1 Move slider to HOT WATER or HEATING, then press + or - to SET ON-TIME 1 RUN adjust the "On" time for Period 1 as shown at left. 6:30 AM 2 Press OK to save, then press + or - to adjust the "Off" time for Period 1. Repeat for all time periods. on 1 on 2 on 3 off 1 off 2 off 3 3 After all Monday time periods are set, press the NEXT DAY Press + or - to change time button to adjust settings for Tuesday. Repeat for all other days. mon tue wed thu fri sat sun ON-TIME 1 OK? To stop programming at any time, move slider to RUN. 6:40 AM Press OK SHORTCUT: While programming, press the COPY DAY button to copy settings for the current day and apply them to other days. For example, you can apply Monday settings to other days of the week. After copying, press the NEXT DAY button to select a target day, then press OK. mon tue wed thu fri sat sun SET OFF-TIME 1 8:30 AM TIP: To delete an unwanted time period, set identical times for the "On" and "Off" periods. 9 Special Functions Temporary schedule overrides Press to turn system on or off The OVERRIDE buttons work like a simple "on/off" switch. If you mon tue wed thu fri sat sun SYSTEM OVERRIDE 12:34 PM cont cont once once auto on 1 on 2 on 3 auto off off 1 off 2 off 3 off press the button when the system is on, it will turn off. If off, it will turn on. The Hot Water and Heating override buttons work independently. Neither affects the other system. These buttons work only when the MODE is set to Auto or Once (see page 7). This change is temporary. It does not change the daily programme schedule, which will resume at the next programmed "On" or "Off" Green light shows system status (on or off) time period. NOTE: See also temporary overrides for extra hours or holidays (see pages 11-12). 10 Temporary schedule overrides -- Extra Hour Special Functions Press to add extra hour(s) mon tue wed thu fri sat sun + i hour 12:34 PM cont cont once once auto on 1 on 2 on 3 auto off off 1 off 2 off 3 off Green light shows system status (on or off) The EXTRA HOUR buttons can extend the current "On" period for 1 to 3 hours more. For example, if you expect guests you may want heating or hot water on for longer than usual. You can also use these buttons to switch on the system for a short period of time. Press EXTRA HOUR once or more to extend times. These buttons work only when the MODE is set to Off, Auto or Once (see page 7). This change is temporary. It does not change the daily programme schedule, which will resume after the number of hours you choose (1 to 3 hours). NOTE: See also temporary overrides for holidays (see page 12). 11 Special Functions Temporary schedule overrides -- Holiday Set slider to RUN The Holiday feature turns off your heating and hot water while you mon tue wed fri sat sun RUN SET HOLIDAY are away for an extended time (up to 99 days). After the designated time both systems resume normal operation. 12:34 PM 1 With slider set to RUN, press the HOLIDAY button. cont cont once auto on 1 on 2 on 3 once auto 2 Press + or - to select the number of days you will be away (up to off off 1 off 2 off 3 off 99 days), then press OK to save and exit. The display shows the Press Press HOLIDAY + or - to change date you will return and counts down the number of holiday days remaining. SET DAYS AWAY 7 To cancel the Holiday mode at any time, press HOLIDAY again. Press OK to start timer On HOLIDAY 6 Screen displays days remaining 12 Advanced features Special Functions · Preset programme schedules: The Digital Timer is preset to follow the schedules shown on page 10 (Schedule A) unless you change the settings. However, instead of changing the settings manually, you can choose either of 2 other pre-configured schedules. Schedule B keeps heating and hot water on longer if you're often at home. Schedule C keeps heating and hot water off longer to reduce energy costs. · Adjustable time settings: By default, the Digital Timer has 6 time settings per day (3 on, 3 off). You can reduce this to 4 time settings if desired (see page 23). · Seasonal time change: The clock automatically changes in spring and autumn to correspond with changes to and from daylight savings time (see page 22 to turn off this feature). · Adjustable clock format: The screen can display time in either AM/PM format (i.e., 2 pm) or 24-hour format (14:00) (see page 22). · Adjustable backlight: A bright continuous backlight makes the display screen easier to read. You can change its operation so the backlight always remains off or is lit for only a few seconds after each button press (see page 22). · Mini-Programmer option: This special operating mode is designed to compensate for the inefficiency of some poorly controlled gravity hot water systems, which heat water whenever the home heating system is on. The Mini-Programmer option blocks some operating modes (i.e., "Auto" is not available in Heating, and "Off" is not available in Hot Water). (see page 23). 13 Installation and Setup System installation Room Thermostat Cylinder thermostat Hot water cylinder Boiler Installation procedure 1 Disconnect electrical power 2 Install Digital Timer 3 Connect system wiring 4 Restore electrical power 5 Configure system operation 6 Test system operation System wiring Digital Timer Heating/hot water systems NOTE: If you are not experienced in equipment installation and electrical wiring, we recommend that these procedures be done by a professional installer. DISCONNECT ELECTRIC POWER BEFORE INSTALLATION: Can cause electrical shock or equipment damage. 14 Remove wall bracket and select location Installation and Setup Use a screwdriver to loosen screws and separate the Digital Timer from the wall bracket as shown at left. Select a mounting location about 1.2 to 1.5 metres from the floor where the display can be seen clearly, in an area where the ambient temperature is between 0 and 40º C. Install the wall bracket as shown on page 16. Wallplate 15 Installation and Setup Mounting options Mount flush on wall Mount on existing junction box Use appropriate wood screws or anchor screws to mount the wall bracket flush against the wall. Use metal screws to mount on an existing junction box. Pull wiring through the wall bracket and connect to screw terminals as shown on page 17. 1 Make sure electrical power is off. 2 Install wall bracket as shown at left. 3 Connect system wiring as shown then replace Digital Timer on wall bracket and secure with screws. Breakout tabs accommodate surface wiring if needed 16 Connect system wiring Terminal screws Insert stripped wires beneath terminal clamps, then tighten screws Terminal designations Installation and Setup Connect wiring from your heating and hot water system to the Digital Timer terminal screws as shown at left. See wiring diagrams on pages 18-20. 1 Make sure electrical power is off. 2 Strip insulation to expose about 7 mm of bare wire. 3 Use a screwdriver to loosen terminal screws, insert wires beneath terminal clamp, then tighten screws. 4 Replace Digital Timer on wall bracket, tighten securing screws, then restore electrical power. NOTE: Keep AC mains supply/load cables separate from equipment wiring. 17 Installation and Setup Wiring diagrams Y-Plan S-Plan Digital Timer Digital Timer Note 1: This is a Class II device (i.e., double insulated). A parking terminal is available for earth wiring if required. Note 2: In "Y," "S" and "W" wiring plans, connections are shown only for basic boilers. For connections to pump over-run boilers, consult boiler manufacturer's instructions. Note 3: Gravity circulation hot-water systems should be fitted with a suitable hot-water control valve as shown in Plan C on page 19. If this valve is not installed, configure this device as a Mini-Programmer (see page 24). Note 4: For convenience, wiring is shown with connections made to a 10-way wiring strip in a junction box. 18 Wiring diagrams C-Plan Installation and Setup W-Plan (wiring shown as a hot-water priority system) Digital Timer Digital Timer Note 1: This is a Class II device (i.e., double insulated). A parking terminal is available for earth wiring if required. Note 2: In "Y," "S" and "W" wiring plans, connections are shown only for basic boilers. For connections to pump over-run boilers, consult boiler manufacturer's instructions. Note 3: Gravity circulation hot-water systems should be fitted with a suitable hot-water control valve as shown in Plan C above. If this valve is not installed, configure this device as a Mini-Programmer. Note 4: For convenience, wiring is shown with connections made to a 10-way wiring strip in a junction box. 19 Installation and Setup 20 Installer setup Press and hold both SET INSTALLER OK? Press OK to begin CLOCK MODE 1 : 12 Function number Setting Press + or - to change setting 24 hour 1 : 24 Function number Setting Installation and Setup Installer settings allow you to customise how your system works. Check the table to see if any settings need to be changed. To change installer settings: 1 Set slider to RUN. 2 Press and hold the OK and - buttons together until the screen displays "Set Installer OK?" Press OK to enter installer setup mode and continue. 3 Press OK repeatedly to scroll through functions until you find one you want to change. 4 Press the + or - buttons to change any setting, then press OK to save the new setting and advance to the next function. To exit installer setup at any time, move the slider up, then back down to the RUN position. 21 Installation and Setup Installer setup functions and settings ** Factory default setting Function Description Setting Options 1 Clock format 12: AM/PM 12-hour time format ** 24: 24-hour time format 2 Screen backlight 0: Always off 1: Screen lit when button is pressed 2: Always on ** 3 Summer/winter time change 0: No change 1: Seasonal switch to/from daylight savings time ** 4 1 day or 5/2 day or 7 day operation Always press OK after changing any setting. 1: 1 day operation 5: 5/2 day operation 7: 7 day operation ** 22 Installer setup functions and settings Installation and Setup Function Description 5 Daily time periods 6 Preset time schedules 7 "Mini-Programmer" on/off 8 Reset all settings Always press OK after changing any setting. ** Factory default setting Setting Options 2: 2 on, 2 off time periods per day 3: 3 on, 3 off time periods per day ** A: Standard (see page 8) ** B: More comfort (see page 25) C: More economy (see page 25) 0: Normal operation ** 1: Mini-Programmer operation 0: Do not reset ** 1: Reset to factory default settings 23 Installation and Setup To test the system After you have installed and configured the Digital Timer, you should check to make sure the system is operating correctly. Set to AUTO HOT WATER HEATING cont cont once once auto on 1 on 2 on 3 auto off off 1 off 2 off 3 off 1 Set the Heating and Hot Water operating modes to AUTO 2 Press the Heating and Hot Water OVERRIDE buttons to turn the heating and hot water on. The indicator lights should be lit. In case of difficulty. 3 Press the Heating and Hot Water OVERRIDE buttons again to turn the heating and hot water off. Press to turn system on or off 4 Check to ensure the factory-set date and time are correct. mon tue wed thu fri sat sun SYSTEM OVERRIDE 12:34 PM cont cont once once auto on 1 on 2 on 3 auto off off 1 off 2 off 3 off Green lights show system status (on or off) 24 Installation and Setup Alternate programme schedules In addition to the default programme schedule shown on page 8, you can set the system to run either of the schedules shown below. Either schedule can be changed as described on pages 9 12. Schedule B (Comfort) Monday-Friday ON 1 Heating 6:30am [off 1] ON 2 [off 2] 9:30am 12:00pm 1:00pm ON 3 [off 3] 4:30pm 11:00pm Hot water 6:30am 9:30am 12:00pm 1:00pm 4:30pm 11:00pm Saturday-Sunday ON 1 [off 1] ON 2 [off 2] ON 3 [off 3] Heating 6:30am Schedule C (Economy) Hot water 6:30am Monday-Friday ON 1 Heating 6:30am Hot water 6:30am Saturday-Sunday ON 1 Heating 8:30am 9:30am 12:00pm 1:00pm 9:30am 12:00pm 1:00pm 4:30pm 11:00pm 4:30pm 11:00pm [off 1] 7:30am 7:30am [off 1] 9:30am ON 2 [off 2] 12:00pm 12:00pm 12:00pm 12:00pm ON 2 [off 2] 12:00pm 1:00pm ON 3 5:00pm 5:00pm ON 3 5:30pm [off 3] 10:00pm 10:00pm [off 3] 10:30pm Hot water 8:30am 9:30am 12:00pm 1:00pm 5:30pm 10:30pm 25 Appendix In case of difficulty Digital Timer screen is blank Radiators are cold, or no hot water is available Screen displays "Not Valid" when slider is in Hot Water position · Check the heating system to make sure the Digital Timer has electrical power. · Check to ensure the heating and hot water channels on the Digital Timer are turned on. The indicator lights should be lit. · Make sure the room thermostat and cylinder thermostat are switched on and set to appropriate temperature levels. · Check the boiler to see if it is operational. · Check wiring (pages 17-20) and system configuration (pages 21- 23). · Your Digital TimerWE has been configured as a "Mini-Programmer" during installer setup. This is only valid for an uncontrolled gravity hot water system. If you have a fully pumped system (see page 23), to reconfigure the system for normal operation by using Function 7, or contact the professional installer who configured your system. 26 Appendix 27 Technical Support 01183 152 114 © 2023 Resideo Technologies, Inc. All rights reserved. This product is manufactured by Resideo Technologies, Inc. and its affiliates.Adobe InDesign 19.0 (Windows) Adobe PDF Library 17.0