Baxi 7703233 Installation, Commissioning And User Instructions
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Baxi 7703233 Installation, Commissioning And User Instructions

Baxi 7703233 Installation, Commissioning And User Instructions

On wall outdoor sensor kit - combi (qac34) suitable for combination boilers only
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United Kingdom
en
Multifit
Part No. 7703233
Installation & Commissioning and User Instructions
On Wall Outdoor Sensor Kit - Combi (QAC34)
Suitable for Combination boilers ONLY
These instructions should be read in conjunction with the
Boiler Installation and Service Manual and left with the User when completed.
Please keep these instructions in a safe place.
If you move house please hand them over to the next occupier.

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  • Page 1 United Kingdom Multifit Part No. 7703233 Installation & Commissioning and User Instructions On Wall Outdoor Sensor Kit - Combi (QAC34) Suitable for Combination boilers ONLY These instructions should be read in conjunction with the Boiler Installation and Service Manual and left with the User when completed.

  • Page 2: Table Of Contents

    Potterton Promax Ultra Combi range Connecting the outdoor sensor BOILER GROUP ‘C’ & setting the curve boiler group ‘B’ Baxi EcoBlue + Combi & Advance Combi ranges BOILER GROUP ‘D’ Connecting the outdoor sensor Baxi 200 Combi range boiler group ‘C’...

  • Page 3: Introduction

    It is recommended that the outdoor sensor is fitted and set prior to connecting any OpenTherm device. Consult the instructions supplied with such devices before setting the curve. The Baxi uSense device is recommended for this type of control application. Contents of Pack...

  • Page 4: Fitting The Outdoor Sensor

    Outdoor Sensor Kit (QAC34) Fitting the Outdoor Sensor - All Models 1. The Sensor must be fixed to an external wall surface. 2. The Sensor should be positioned on a north to west facing wall (Figs. 1 & 2). NOTE: DO NOT position it on a south facing wall in direct sunlight ! 3.

  • Page 5: Boiler Group 'A

    Outdoor Sensor Kit (QAC34) Connecting the Sensor - boiler Group ‘A’ 1. Ensure that the electrical supply to the boiler is isolated. Undo the screws securing the facia and lift off the front panel. Allow the facia to drop down (Fig. 2.

  • Page 6: Boiler Group 'A

    Outdoor Sensor Kit (QAC34) Setting the Sensor Curve - boiler Group ‘A’ Reset NOTE: Depending upon model of boiler different types of Selector Switch and Central Heating Control Knob will be fitted (Figs. 11 & 12). Fig. 11 1. Ensure that there is power to the boiler (though it is not necessary for there to be any heating demand).

  • Page 7: Setting The Curve Boiler Group 'B

    Outdoor Sensor Kit (QAC34) Connecting the Sensor & Setting the Curve - boiler Group ‘B’ M2 low voltage terminal strip Connecting (already fitted) 1. Ensure the electrical supply to the boiler is isolated. Undo the securing screws and lift the case front panel off.

  • Page 8: Connecting The Outdoor Sensor Boiler Group 'C

    Outdoor Sensor Kit (QAC34) Connecting the Outdoor Sensor - boiler Group ‘C’ Sensor Cable 1. Ensure that the electrical supply to the boiler is Connect to 4 & 5 isolated. Hinge down the control box and remove the boiler terminal block cover. 2.

  • Page 9: Operating Instructions Outdoor Sensor Boiler Group 'C

    P07 = 80°C If the Sensor is fitted to a boiler serving a low temperature system or underfloor heating please contact Baxi Customer Support for advice. P06 = 50°C IMPORTANT: Do not change any other parameters other than those described in these instructions otherwise the warranty of this kit and the boiler could be invalidated.

  • Page 10: Fault Finding Boiler Group 'C

    Outdoor Sensor Kit (QAC34) 11.0 Fault Finding - boiler Group ‘C’ No or poor CH performance or error code displayed Check outside sensor wiring for damage or short circuit. Error 10 displayed Otherwise replace Outdoor Sensor. If any other error code is displayed refer to appliance manuals for further details then continue with CH fault finding.

  • Page 11: The Slope Boiler Group 'D

    (as shown on the graph - Fig. 24) is displayed (Fig. 25). X1 MAINS NOTE: If a Baxi uSense smart thermostat is 0.5A connected to the boiler the slope must be set using the uSense App. The boiler display will not 230V - 50Hz show the slope but will still be active.

  • Page 12: The Curve Boiler Group 'E

    Consider the type of dwelling and discuss with the user their requirements to determine the most appropriate curve. NOTE: If a Baxi uSense smart thermostat is connected to the boiler the curve must be set using the uSense App. See the instructions supplied with the uSense.

  • Page 13: Notes

    Outdoor Sensor Kit (QAC34) 14.0 Notes 7703237-01 (3/18)
  • Page 14 Outdoor Sensor Kit (QAC34) 14.0 Notes 7703237-01 (3/18)

  • Page 15: User Information

    Outdoor Sensor Kit (QAC34) 15.0 User Information NOTE: The Central Heating Temperature Control will NOT operate in the same way as described in the User Instructions supplied with the boiler ! 1. Your installation has been fitted with an Outdoor Sensor that acts as a Temperature Compensation Device.
  • Page 16 Baxi Customer Support 0344 871 1545 Baxi Brooks House, e&oe All descriptions and illustrations provided in this document have been Coventry Road, carefully prepared but we reserve the right to make changes and Warwick, CV34 4LL improvements in our products which may affect the accuracy of the information contained in this leaflet.

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