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Model: 52UH873
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Summary of Contents for Hep2O 52UH873
- Page 1 Heating Professionals: Request a copy of our product installation guide for our complete product range: www.hep2o.co.uk Want More Information? Want More Call our support team on: 0844 856 5152/3 Or visit our website: www.hep2o.co.uk Twitter: hep2o Facebook: Video facebook.com/hep2o Model: 52UH873...
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Page 2: Table Of Contents
Table of Contents Product Image oduc mage mage Table of Contents What is a Programmable Room Thermostat? t is t is amma ammable most mosta Installation Procedure LCD Display CD D Displ ispla Setting the Clock Temperature Display empe empe ra ratu tur e Di Displ... -
Page 3: What Is A Programmable Room Thermostat
What is a Programmable Room Thermostat? A programmable room thermostat is both a programmer and a room thermostat. The best way to do this is to set the room thermostat to a low temperature – say 18°C , and then turn it up by 1°C each day until you are comfortable with the temperature. -
Page 4: Installation Procedure
Installation Procedure Mount the thermostat at eye level. Read the instructions fully so you get the best from our product. Don’t Do not push hard on the LCD screen as this may cause irreparable damage. box of 35mm (minimum depth) to be sunk into the wall prior to installation. Step 1 Carefully separate the front half of the thermostat from the back plate by placing a Step 2... -
Page 5: Lcd Display
LCD Display Room Temp - Indicates the current temperature sensor mode. Day Indicator - Displays the current day. Frost Icon - Displayed when the thermostat is in frost protection mode. Temperature Hold - When a Temp Hold is active, HOLD FOR and the remaining time period is displayed. -
Page 6: Setting The Clock
Setting the Clock Temperature Display To set the clock, follow these steps. measurement and the target temperature you have set. With the thermostat turned ON, press the Clock key twice ......... Use the Up/Down keys to set the hours .............. Room Temperature Set Temperature Use the Up/Down keys to set the minutes ............ - Page 7 Comfort Levels Explained Use the Up/Down keys to enter the required WAKE time ....... The thermostat provides Weekday/Weekend or 7 Day Programming options. You should consult the “Optional Features” section to select the required mode. The thermostat is supplied with comfort levels already programmed, but these can be Use the Up/Down keys to enter the required WAKE temperature ..
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Page 8: Locking The Thermostat
Temperature Control Locking the Thermostat The Up/Down keys allow you to adjust the set temperature ....... The thermostat has a keypad lock facility. To activate the lock follow these steps. When you press either key, you will see the word SET and the desired Press and hold the A and Down keys together for 10 seconds .. -
Page 9: T Temperature Hold Empe
Temperature Hold Holiday The temperature hold function allows you to manually override the current operating The holiday function reduces the set temperature in your home to the frost protection temperature setting (see page 19). The thermostat will maintain this temperature for the duration of the holiday and will Press H to commence temperature hold .............. - Page 10 Frost Mode Pressing the Power button once will place the thermostat in frost protect mode. set temperature but the thermostat remains active. In this mode, the thermostat will display the frost icon and will only turn the heating on should the room temperature drop below the set frost temperature (see page 19). To turn the thermostat OFF completely, press and hold the Power button..
- Page 11 Feature 07 – Temperature Up/Down Limit: This function allows you to limit the use Optional Features Explained of the Up and Down keys. This limit is also applicable when the thermostat is locked and so allows you to give others limited control over the heating system. THE FOLLOWING SETTINGS ARE OPTIONAL AND IN MOST CASES Feature 08 –...
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Page 12: Ra Ratu Tur
Adjusting the Optional Settings Optional Settings - Feature Table FEATURE DESCRIPTION SETTING To adjust the optional settings, follow these steps. Temperature Format empe ra ratu tur 00 = C, 01 = F (°C = Default) (°C °C efault ult) Press and hold the Power button to turn the thermostat OFF ......- 03 C (01 C = Default) -
Page 13: Re-Calibrating The Thermostat
Re-calibrating the Thermostat Factory Reset If you need to re-calibrate the thermostat, follow these steps. The thermostat has a reset function to restore all settings to their factory defaults. Press and hold the Power button to turn the thermostat OFF ......To perform a factory reset, follow these steps. - Page 14 Wiring Diagram - 52UH873 to Boiler S/L Wiring Diagram - 52UH873 to Boiler Voltfree THIS UNIT MUST BE PROTECTED BY A FUSE OR RCD THIS UNIT MUST BE PROTECTED BY A FUSE OR RCD 52UH873 52UH873 230V AC 50/60Hz 230V AC 50/60Hz...
- Page 15 Wiring Diagram - 52UH873 to Valve Wiring Diagram - 52UH873 to PRC Volt Free Switching 52UH873 THIS UNIT MUST BE PROTECTED BY A FUSE OR RCD Recommendations 12VDC Max Cable Size - 1.5MM Network Back Box Depth - 35MM 52UH873...
- Page 16 Notes Wiring Diagram - 52UH873 to 52UH108 ..................................52UH873 ..................................Connecting 52UH873 to the 52UH108 12VDC ..................................Network The 52UH108 allows connection of up to eight 12 volt network thermostats..................................When connecting network thermostats to the 52UH108 use CAT5-FTP or BELDEN 9538.
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