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ORIGINAL INSTRUCTIONS
VES Andover Ltd Eagle Close Chandlers Ford Ind. Est. Eastleigh Hampshire SO53 4NF
Tel: 023 8046 1150 Fax: 023 8026 1204 E-mail: [email protected] Web: www.ves.co.uk
EVH Hybrid Ventilation Unit
Installation, Operation and Maintenance Manual
Typical LPHW Coil
Fig.
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Continued
Installation
4
Coils should be piped according to any relevant local codes of practice. As standard EVH coils are
supplied with a Ø15mm plain stub suitable for push-fit connections. All external piping is to be
supported independently from the coil. The flow connection is nearest the bottom of the unit (see
below)
It is important that coils are protected against damage from extreme weather conditions during
the winter season. If the water is allowed to freeze in the coil system,
damage may occur potentially bursting pipes and resulting in emergency problems.
EVH LPHW units are fitted with a coil temperature sensor as standard, ensuring that boilers run
continuously in low ambient temperatures can help to prevent this.
On Ecovent®
EVH/ -W
units, a Low Pressure Hot Water (LPHW) coil will be installed. The coils are
normally suitable for low pressure hot water with a range of between 80 ~ 60 °C flow and between
70 ~ 40 °C return temperature. The coil should be regularly vented so as to avoid potential air
locks, resulting in a fall off of duty.
Caution
It is recommended that a check be made as to whether any treatment is required to the water
supply for prevention of corrosion and scaling of the equipment. Information regarding the
necessary action to be taken can be obtained from the relevant Local Water Supply Authority.
The unit will have been supplied with connections either left or right-hand side looking in
direction of airflow. Please see order acknowledgement for confirmation of this handing.
Should you need to alter this please consult VES as unit adjustment may invalidate your
warranty.
Flow
Return
