Installation and Operating Instructions Xcell 150 QV Xcell 150 QVW Mechanical Ventilation Unit with Heat Recovery Please ensure these instructions are kept safe and accessible at all times.
Contact details for trician. It is the installer’s responsibility to ensure authorised servicing by Xpelair approved techni- that the appropriate building codes of practice are cians can be found on the back of this booklet.
4 Application and Planning 4.1 Application This MVHR is intended for installation in ventila- Part L – Buildings other than dwellings: tion systems in houses, residential buildings and Approved Document L2A: Conservation light commercial applications e.g. offices and of fuel and power (New buildings other meeting rooms etc.
5 Assembly and Installation 5.1 General information: 5.2 Impact noise reduction: The MVHR should be aligned horizontally using With installation on wooden floors or other vibra- a spirit level (for reliable condensate drainage). tion-prone components, there may be combined impact noise (use foam rubber mounts). The mains voltage must be 220-240V / 50-60 5.3 Connecting the ducting: If mounting on low density walls i.e.
For ease of installation the duct connections are 5.4 Duct connections: located on top of the MVHR. Dwelling Extract Dwelling When viewed from the front of the MVHR in a Supply right handed installation, the two duct connec- Atmosphere tions on the left hand side are for: Intake Atmosphere Drawing in fresh air from the outside (At-...
5.5 Installation 5.5.1 Wall-mounting the MVHR 5.5.2 Installation of the ducting For wall-mounting the MVHR, three wall-mounting When installing ducting, care should be taken to brackets are supplied. ensure it is properly supported and secure with joints properly sealed. Flexible ducting should only be used for final connections with special care ...
6 Technical Data 6.1 Air volume flow rates can be adjusted on the PCB by service technicians only: The adjustment potentiometers (3x blue) for the supply air fan and (3x red) for the exhaust air fan are shown on the picture opposite. Port pins for connection of the voltmeter are also provided.
6.6 Applied Energy accessories for manual or automatic operation: Part Description Notes Number The manual 2-speed switch is suitable for the Xcell 150 QV model MS2 controller 23513AW only. This switch can be flush or surface mounted. The CO sensor is suitable for the Xcell 150 QVW model only.
8 Controller Functions 8.1 MS2 manual 2-speed switch Refer to section 7.1 for the relevant wiring diagram. This switch option is for manual control only and therefore none of the automatic control accessories listed below are compatible with this switch. Minimum size of 3-core cable to be used: Power supply –...
Sensor The CO sensor will only function in conjunction with the automatic 3-speed switch, refer to sections 7.3 and 7.4 for the relevant wiring diagrams and associated controllers that are compatible with the CO sensor. With jumper 10 selected on the PCB, the CO sensor is active.
8.5 Automatic defrost (anti-icing protection) In order to prevent the heat exchanger from freezing when the outside temperature is low, a frost protection moni- tor has been integrated (Xcell 150 QVW models only). Two temperature ranges can be set via the PCB jumpers 4 and 5 (see table below). Option 1 (Factory default setting): If the temperature in the outgoing air duct falls below 4°C the supply air fan will stop (the exhaust air fan will remain on).
Replacement G4 filters are of a frameless moulded construction. Contact de- tails for authorised servicing by Xpelair approved technicians can be found on the back of this booklet. 9.2 Removing and re-fitting the filters ...
The heat exchanger should be cleaned by a specialist technician as and when required depending on the level of contamination, but at least every 2 years. Contact details for authorised servicing by Xpelair approved technicians can be found on the back of this booklet.
Disconnect the power and control leads of the faulty fan from the PCB (Xcell 150 QVW model only) or Terminal Block (Xcell 150 QV model only), whichever applies. Refer to Section 7 for the relevant wiring diagram to correctly identify which leads to disconnect for each fan.
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c) Firmly attach string to the two leads of the faulty fan. Note: The string, at least 3 metres long, must be secured tightly but not in a way that will become jammed when pulled through the cable channels inside the unit i.e. no large tied knots. d) Remove the Bell Mouth covering the faulty fan.
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