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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
®
Important
Warning
Caution
Maintainance
6
Before attempting to carry out any work on our units, all accompanying documentation including warning
labels on the unit must be referenced.
Should it be necessary to remove any component ensure that these are secured into position once
reinstalled. It is critical that after any maintenance work has been conducted that all components
removed/replaced be refitted correctly by a competent engineer.
Before attempting to carry out any maintenance work, investigative or repair work on our units, the unit
MUST BE COMPLETELY ISOLATED
from its electrical supply. Ensure a minimum of two minutes after
electrical disconnection before removing access panels. This will allow any moving parts to come to a rest.
Care should also be taken when accessing external units as the wind and elements may cause moving
parts to ‘windmill’.
In general, this series of units require little maintenance. In the unlikely event of component failure, spares
are available from stock at VES Andover Ltd.
When accessing the unit ensure the access panels are handled/opened in a controlled manner so as to
avoid damage to the unit or injury to personnel. This is particularly important with bottom access units.
Ensure the AHU has been allowed to completely cool before attempting any work to the unit
For bottom access units, should it be necessary to remove the heat exchanger from the unit casework take
care to ensure that all components are correctly supported during their removal.
Remove the lids and central mullion from the unit, exposing the bypass damper. As an additional safety
measure some components are held into place using PK screws as shown.
Remove the required components with care and ensure all components are replaced correctly.
All Ecovent®
EVX
units feature plug & socket connections to allow easy removal/replacement of
key components. Separate the plug connection by hand (tools not required) by lifting the
locking lever
and pulling the plug/socket apart
.
DO NOT
pull the cable to separate the
assembly.
On reconnection, the assembly features a locating lug to ensure correct orientation. Once rejoined ,lock
the connection together again using the locking lever as shown.
Ecovent®
EVX
units 1 to 5 feature a bulkhead-mounted fan plate assembly.
Ensure that special care is taken when removing/replacing components/assemblies from bottom-access
units. For larger components this may require the use of two or more persons.
The mounting plate is slotted to aid plate alignment. It is important to keep the fan assembly supported at
all times; the fan assembly should not be considered supported until all fixings are securely tightened.
To remove the fan assembly Fig.
, ensure the unit is fully isolated. Separate the supply plugs to the fan
as shown above
.
Detach the measuring tube from the inlet ring and stow the tube clear .
Back-out the bottom screws but do not remove .
Remove the top fixings completely and retain .
Carefully lift the fan assembly over the retained fixings and remove the fan assembly from the unit.
Important
Plug & socket operation
Fig.
