"Studio"
Heat Recovery Unit
with Low Energy DC Motor
Installation, Operating
and Maintenance Instructions
Condensate Drainage
The unit may sometimes produce condensation which must be drained away. A 15mm dia pipe connection
is provided on this unit.
1. A 15mm rigid PVC push-fit pipe must be used for connection to the unit.
2. IMPORTANT
:
A solvent weld must NOT be used on this joint as the joint has to be disconnected in
order to remove the heat exchanger for cleaning.
3. The condensate drain pipe must be suitably trapped order to prevent air egress from the unit.
4. The drainage pipe must have a continuous fall from the unit to the drainage collection point.
5. If any part of the condensate drain is in an unheated space it MUST be insulated with the equivalent of
at least 25mm of insulating material with a thermal conductivity of 0.04 W/mK.
Note:
1. In order to prevent any possible condensate overspill from the unit, excess water in the condensate
tray will be detected and the motors will switch off to prevent further condensation from forming. If this
happens, a warning light on the unit will flash.
2. The cause of this will usually be inadequate drainage. The drain must be inspected and cleared of any
blockage and the correct rate of fall from the unit must be ensured.
3. Once the drainage problem has been resolved, the unit will automatically restart after 5 minutes.
Electrical Connection
WARNING: these appliances must be earthed and all wiring must conform to current IEE Regulations and
all applicable standards and Building Regulations.
• The unit is suitable for 230V, 50Hz Single phase supply.
• The unit is supplied with a mains rated 4 core flexible cord (black, brown, grey and green/yellow)
• Cables for any other external device can be
provided and labelled on request
• A triple pole isolation switch with contact separation of at least 3mm must be used to connect the appliance
to the fixed wiring when using the Switched Live.
• Boost and other external controls should be clearly identified and conveniently located.
•
The boost facility can be activated by a switched live connection (in addition to the permanent supply live).
Page 5
Page 6
COMMISSIONING
Pre-programmed Settings
The fans are supplied pre-programmed at the required motor speed settings and no adjustment should be
necessary for standard rooms.
1. The commissioning must only be carried out by a suitably qualified person.
2. Prior to starting the commissioning procedure, ensure that the ductwork connections and airflow
directions match one of the options 1 or 2, shown on page 4. Check that the drain connection is on the
correct side.
3. Before making any adjustments, ensure that the air valves or grilles are fully open.
4. Please see separate "LCD Control Panel Commissioning Instructions" for details on commission-
ing and user operations
..
WARNING : With the control board panel removed, 230 volt live connections are accessible.
Cleaning and Maintenance
WARNING: The unit uses a 230V supply and contains rotating mechanical parts.
Before carrying out any maintenance or cleaning the mains electrical supply MUST be disconnected,
including any switched live connections.
Filter Cleaning/Replacement (should be checked every three months or more often if the environ-
ment warrants it)
1. Remove the filter access strips from the rear panel.
2. Slide out the filters by pulling the tabs.
3. Clean the filters carefully using a vacuum cleaner. Replace the filters in the slots and refit the covers.
4. Filters should be replaced annually or after a maximum of three cleaning cycles.
Heat Exchanger Access and Cleaning (should be cleaned annually)
1. Turn off the unit and isolate it from the mains power supply, including any switched live connections
2. Disconnect the condensate pipe from the condensate connector.
3. Remove the four screws retaining the access panel and completely remove the panel.
4. Remove the drain tray downwards and keep it level as there may be water within the tray.
5. The heat exchanger has a plastic strap around it. Pull the strap gently downwards, keeping the
heat exchanger as horizontal as possible as there may still be water inside it.
Once removed, ensure there is no water in the heat exchanger and that it is dry.
6. Using a vacuum cleaner with a soft brush attachment, carefully remove any dust from the faces of
the heat exchanger.
7. Check that the drain connector is clear of any deposit or blockage and remove as necessary.
Do not use any type of cleaning fluid on this product.
8. Replace the heat exchanger by using the guide rails in the polystyrene and pushing up.
9. Replace the drain tray.
10. Replace the access panel and secure using the four screws.
11. Reconnect the condensate pipe to the condensate connector and ensure that there is the required
amount of fall away from the unit.
Switch on the power to the unit and check that it is running correctly.
Should you have any queries relating to these instructions, please contact the Vectaire Technical
Department on 01494 522333
Vectaire Ltd, Lincoln Road, Cressex Business Park, High Wycombe, Buckinghamshire, HP12 3RH
Tel: +44 (0)1494 522333. Fax: +44 (0)1494 522337. Email: [email protected]
Studio 040119
E & O.E