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VES Andover Ltd Eagle Close Chandlers Ford Ind. Est Eastleigh Hampshire SO53 4NF
Tel: 08448 15 60 60  Fax: 02380 261204  E-mail: [email protected] Web: www.ves.co.uk

ecovent 

NRG

 Air Handling Units

Installation, Operation and Maintenance Manual

3

Immediately upon receipt of goods, check for possible damage in transit paying particular
attention to fan impellers, coil connections and unit casing. Prior to installation please check
to ensure alignment and smooth rotation of the impeller after transit. Also check to ensure
that any ancillary items are included. These will normally be supplied fi tted or, in the case of
small items, taped to the unit.
In the event of any damage having occurred or if any item is found to be missing, it is
essential to inform VES Andover Ltd. within 

7 days

 of delivery quoting sales order number

and the unit type, as found on the unit nameplate.
After this period, VES would be unable to accept any claim for damaged or missing goods.

Receipt of Goods 

& Handling

3

The entire system must be considered for safety purposes and it is the responsibility of the
installer to ensure that all of the equipment is installed in compliance with the manufacturer’s
recommendations, with due regard to the current HEALTH AND SAFETY AT WORK ACT and
conforms to all relevant statutory regulations.
Where a unit is installed so that a failure of components could result in injury to personnel,
precautions should be taken to prevent such an injury. If the unit is installed where there is a
reasonable possibility of persons or objects coming into contact with the impeller whilst
operational, a guard should be fi tted or steps taken to prevent this.
It is the installer’s responsibility to ensure that access panels are not obstructed in any way and
safe working access for maintenance must be provided in accordance with Health and Safety and
Building Regulations. For confi rmation of required access please see the appropriate unit outline
drawing; note that some access doors are hinged.
For optimum unit performance, careful consideration must be paid to the location of the unit in
relation to the ductwork and associated items; placing the unit directly adjacent to a bend in
ductwork will impede airfl ow and reduce performance.
Consideration must also be given by the installer for adequate illumination of the unit location in
order for safe maintenance.

Handles, lids, housings and coil connections must NOT be used as lifting points

Larger NRG units are sectional. It is important to ensure that all sections are joined together 
securely prior to positioning and installation.

Units that are supplied in one section as standard will be factory assembled with the appropriate
fi xings. Units over 2.5 metres in length and units with fi tted silencers may be supplied in
sections, and some site assembly will be required. Units supplied in sectional form should be
assembled using self-adhesive rubber tape at the joints prior to assembly so as to prevent air 
leakage; replace with similar if damaged.

Units should only be supported using the support feet or channel base as provided by VES with the 
unit. Contact VES before attempting to support the unit using alternative methods. 
Only experienced fi tters should undertake this work.
Take necessary safety precautions when working in elevated positions. 

For associated components (inverters, speed controllers, controls) please refer to the relevant
accompanying O&M

Installation

4

Caution

Caution

Important

Important

When moving the unit, handle with care and 
in such a manner as to avoid damaging the 
external fi nish as this may reduce the ability to 
resist corrosion.
Units are to be rigged and lifted using 
spreaders, taking into account the weight of 
the unit, and lifting gear should be arranged so 
as not to bear on the casework see right.

Lifting detail

Fig.

Summary of Contents for ecovent NRG

Page 1: ...ic current and high voltages Indicates hazards that require safety advice for personnel and or potential unit property damage Indicates important information Page Introduction 1 Nomenclature 2 Receipt...

Page 2: ...Null Single Skinned DS 25mm double skinned mineral wool in ll PB 25mm double skinned plasterboard in ll EE 50mm double skinned mineral wool in ll 10 Handing RT Right Top Access denotes position of RB...

Page 3: ...ided in accordance with Health and Safety and Building Regulations For con rmation of required access please see the appropriate unit outline drawing note that some access doors are hinged For optimum...

Page 4: ...rods If required the unit can be further secured to the oor via knockout xings holes on the feet xings to be supplied by others Standard units should be mounted in the horizontal plane level with lid...

Page 5: ...move the four support covers as shown retaining the screws Take especial care when working around the speed controller section Remove the heat exchanger carefully lifting straight up and out taking ca...

Page 6: ...hanger and silicon into place along upright angles Turn the drain pan over so that the drain sump now faces the heat exchanger upside down and replace in the unit making sure that the drain is adjacen...

Page 7: ...is the correct way up taking special notice on bottom access units Slide the pump down onto the bracket as shown Fit the pump sensor in the drain pan sump as shown Secure the sensor into place using s...

Page 8: ...ant local codes of practice Where threaded con nections are supplied the only approved method of jointing method is by use of Boss white and hemp The thread tted to the coil is to be supported at all...

Page 9: ...and prone to water logging it should be properly trapped just before the coil If the steam is from a high pressure steam main it is essential to have a working pressure relief valve on the low side to...

Page 10: ...for special versions of the units consult the wiring diagram in your document pack or contact our customer services department on 08448 15 60 60 quoting the sales order SO number and unit type as foun...

Page 11: ...C A C400V F 2 ZB501 0 40 1 70 4 50 8 3 SNS641 0 49 2 20 5 00 10 4 SNS641 0 49 2 20 5 00 10 5 SNS741 0 73 3 30 7 00 12 6 SNS841 1 30 5 70 15 0 30 Model 400V 3PH 50Hz ecoNRG Unit Fan Motor Power kW FLC...

Page 12: ...d controller documentation for further operational details Units size 7 8 and 9 are supplied with tted 3phase inverters for fan speed control and commissioning see the accompanying inverter documentat...

Page 13: ...ted to the air volume via the energy conservation rate as per the graph below Simply read across from the pressure measurement to the appropriate fan curve and down to calculate the resultant air volu...

Page 14: ...avily soiled or damaged in any way they should be replaced 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 caus...

Page 15: ...RG air handling units Type NRG Manufacturer VES Andover Limited The product above is produced in accordance with EC Council Directives 2004 108 EC Electromagnetic Compatibility Directive 2006 95 EC Lo...

Page 16: ...12 24 months from the date of dispatch This can be covered at a cost of just 3 of order value minimum charge 50 00 Option 3 12 36 Month Extended Warranty 12 36 months from date of dispatch For this c...

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