VES Ecovent EVHR, Инструкция по установке, эксплуатации и обслуживанию

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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: vesltd@ves.co.uk Web: www.ves.co.uk
EVHR Hybrid Ventilation Unit
Installation, Operation and Maintenance Manual
Continued
Ecovent ® EVHR units are offered in a LPHW heating varient. The Coil section is secured to the fan
section using self-locating joining brackets. The coil section is square in profile and can be
reconfigured to allow alternate coil connection positions relative to the fan section should that
be required.
Coils should be piped according to any relevant local codes of practice. As standard EVHR coils
are supplied with a 1” BSP connection. All external piping is to be supported independently from
the coil. The flow connection is nearest the bottom of the unit.
It is important the connecting pipework route does not obscure any of the fan section access.
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.
EVHR 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® EVHR/ -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.
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.
Repositioning the coil section is best done BEFORE installing the unit at roof/ceiling level.
When repositioning the coil section the casework for both sections MUST be fully supported.
A supply temperature sensor is positioned within the coil section and hardwired to the control
panel, separating the sections too far apart may result in damage to critical components.
A service loop has been provided to aid rework. Ensure the sensor cable is stowed within the
coil section when reassembling the sections so as not to trap the cable between the joints.
Installation 4
EVHR/W
LPHW Coil Units
Important
Caution
Important
Caution