Introduction; Contents Of Pack - Baxi 7703233 Installation, Commissioning And User Instructions

Outdoor Sensor Kit (QAC34)
(iii)
7703237-01 (3/18)
(i)
For boilers in
Group 'A' ONLY
(iv)
For boilers in
Group 'A' ONLY
2.0
1. The Outdoor Sensor kit positions a temperature sensor on a
suitable outside wall. Installation of this kit permits the
customer to gain the efficiency benefits of outdoor weather
temperature compensation control. The sensor allows the
outdoor temperature to be taken into consideration and the
boiler flow temperature regulated accordingly to provide
required comfort levels.
2. The curve determining boiler flow temperature should be set
as low as possible but still maintaining required comfort levels.
The selected curve must be noted on the identifying label to be
affixed to the boiler.
(ii)
3. The addition of anything that may interfere with the
normal operation of the appliance without express written
permission from the manufacturer could invalidate this kit and
the appliance warranty. In GB this could also infringe the Gas
Safety (Installation and use) Regulations.
4. This kit is only suitable for use with the boiler ranges listed
by group on page 2.
Conventional Controls: Standard mains voltage ON/OFF
controls do not affect the method of setting the curve or
boiler operation when the outdoor sensor is fitted.
Conventional controls in conjunction with an outdoor sensor
represent the simplest solution.
OpenTherm Controls: If an OpenTherm control is also to
be connected to the boiler this must be taken into
consideration as some devices affect the operation of the
boiler control knobs or buttons. Depending on the device
used it is possible that the OpenTherm control will assume
the role of "master", rendering the boiler controls
inoperative or altering their function.
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.
(v)
3.0
Description
(i) Outdoor Sensor (QAC34)
(ii) M2 Terminal Strip & Screw (for boilers in Group 'A' only)
(iii) Replacement Harness (for boilers in Group 'A' only)
(iv) Grommet & Screw (for boilers in Group 'A' only)
(v) Identifying Label

Introduction

Contents of Pack

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