14
ORIGINAL INSTRUCTIONS
VES Andover Ltd Eagle Close Chandlers Ford Ind. Est Eastleigh Hampshire SO53 4NF
Tel: 08448 156060 Fax: 02380 261204 E-mail: [email protected] Web: www.ves.co.uk
Heat Recovery Unit
Installation, Operation and Maintenance Manual
®
Maintainance
6
Continued
To replace the fan assembly, ensuring the pitot
tapping on the fan inlet ring is accessible, locate
the mounting plate over the fixings retained in the
unit bulkhead.
Secure the loose fixings
through the mounting plate and tighten all the
mounting fixings.
Attach the measuring tube to
the pitot tapping on the inlet ring ensuring that it
is clear of all moving parts. Reconnect the supply
plugs as in Fig.
; if more than one plug is used,
ensure the correct plugs are reconnected as marked.
E
nsure that the fans are free running by following the fan alignment instructions on page 11,
adjust as
required.
In order to keep the unit in good order the following maintenance routine is recommended:
Filters should be inspected every three months. If they are found to be heavily soiled or damaged
in any way they should be replaced. Spare filters can be ordered from VES Spares Department.
The fan impeller should be cleaned every 6 months. Failure to clean the fan on a regular basis
could result in loss of fan performance, or cause it to fall out of balance. If a fan is stationary for
long periods in a humid atmosphere, it should be switched ON for minimum of two hours every
month to remove any moisture that may have condensed within the motor.
The fan motors are maintenance free due to the use of ball bearings with “life-long lubrication”.
At the end of the grease life it will be necessary to change the bearings or change the fan unit. The
life expectancy of bearings for standard usage is approximately 30 - 40000 hours.
If included, backdraught shutters should be free moving and unobstructed. Check the foam seals
and replace as necessary. Backdraught assemblies are available as a spare part if required.
Failure to keep dampers clean could result in the damper becoming inoperative. Clean damper
blades and frames and lubricate with PTFE aerosol or equivalent.
The heat exchanger matrix should be inspected for debris, dust or dirt build up. If found
contaminated, foreign matter should be removed accordingly; superficial dust or debris can be
removed from the surface of the heat exchange by gently brushing. Loosened debris can then be
vacuumed from the surface of the matrix or flushed through with warm water. Stubborn deposits can
be removed by using a low pressure washer with an approved detergent solution. The solution
temperature should not exceed 50°C. When using any pressure device care must be taken not to
damage the heat exchanger matrix.
Under NO circumstances should the heat exchanger be steam cleaned.
Ensure the drain pan and the drain connection is free from debris ensuring any condensate
produced can freely drain away. Should a full service be required it may be necessary to
disassemble the unit casework to gain access to some components.
Ecovent®
EVX
units are supplied with both unpainted galvanised sheet steel cases and powder
coat paint finish. Check all painted items to ensure that they have not deteriorated, particularly
where adverse environmental conditions prevail. Re-paint as necessary. Matching paint can be
supplied upon request.
When enquiring after or ordering spares contact VES Spares Department, quoting the sales order
(SO) number and unit type as found on the unit nameplate.
Tel: 08448 15 60 60 • Fax: 02380 26 12 04
At the end of their useful life the packaging and product should be disposed of via a suitable recycling
centre. Do not dispose of with normal household waste. Do not burn.
PLEASE ENSURE THAT THIS DOCUMENT IS PASSED ON TO THE END USER
We reserve the right to alter the specifcation without notice ©VES Andover Ltd. 2012.
No part of this publication may be photocopied or otherwise reproduced without the prior permission in
writing of VES Andover Ltd.
Three Monthly Checks
Six Monthly Checks
Twelve Monthly Checks
Spares & Repairs
WEEE Directive
Caution
Recommended Checks
Fan assembly removal/
installation
Fig.
