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ecovent Heat Recovery Units
www.ves.co.uk
Maintainance
6
Con nued
Recommended Checks
In order to keep the unit in good order the following maintenance rou ne is recommended:
Three Monthly Checks
Filters should be inspected every three months. If they are found to be heavily soiled or damaged in
any way they should be replaced. A failure to replace filters periodically will result in a drop in
arrestance efficiency and unit performance. Spare filters can be ordered from VES spares department.
Six Monthly Checks
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 sta onary 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 lubrica on'.
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.
Failure to keep dampers clean could result in the damper becoming inopera ve. 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 ma er 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 solu on. The solu on temperature should not
exceed 50 °C. When using any pressure device care must be taken not to damage the heat exchanger
matrix.
Cau on
Under NO circumstances should the heat exchanger be steam cleaned.
Ensure the drain pan and the drain connec on is free from debris ensuring any condensate produced
can freely drain away. Where a pump is fitted check the sensor and float for contamina on. Clean as
required using a 95 / 5% Water/Chlorine solu on. Check also all associated pipework. Any found to
be damaged or blocked should be replaced, spare replacement pipes being available from VES.
Should a full service be required it may be necessary to disassemble the unit casework to gain access
to some components.
Twelve Monthly Checks
Ecovent Counterflow units are supplied with unpainted galvanised steel cases as standard but have
an op on for powder coat paint finish. Check all painted items to ensure that they have not
deteriorated, par cularly where adverse environmental condi ons prevail. Re-paint as necessary.
Matching paint can be supplied upon request.
Spares & Repairs
When enquiring a er or ordering spares contact VES Spares Department, quo ng 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
WEEE Direc ve
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
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