ORIGINAL INSTRUCTIONS
6
Heatline - Duct mounted Heater with controls
Installation, Operation and Maintenance Manual
VES Andover Ltd. Eagle Close, Chandlers Ford Ind. Est, Eastleigh, Hampshire, SO53 4NF
Tel: 08448 15 60 60 Fax: 02380 26 12 04 E-mail: [email protected] Web: www.ves.co.uk
Duct Installation
6
For sensitive installations, VES can offer a 4 to 20 mA control option.
Important
Fan run on sequence determined by BMS.
Warning
To ensure safety and compliance, please refer to O&M manual for wiring, fan run-on, and
installation instructions.
Warning
6.1 Airflow
Caution
The heater can be used for horizontal or vertical airflow. The air should be evenly
distributed across the duct and the minimum air volume as stated on the air heater name
plate must be maintained.
6.2 Thermal
Cutout (Auto)
(EHB option only)
Every heater is provided with a thermal cutout which will break contacts when the duct
temperature rises above 70 °C. This cutout is provided to comply with M & E specifications
and will require removal of the terminal cover to reset.
Supply must be isolated before removing cover.
Warning
N.B. It is very important that all electrical connections are properly made. Elements are
tested prior to dispatch and are within tolerance of ±7½ W of total load. If the elements are
found to be faulty they can be easily removed and replaced. Elements stored in damp
conditions may need drying to attain correct insulation readings - contact VES Andover Ltd. if
in doubt.
6.3 Testing
(EHB option only)
Continued
Supply to Heatline should be 1ph or 3ph and a neutral - refer to name plate for
correct supply.
The heater is fitted with a manual reset high temperature cutout which has NC
(normally closed) terminals and an air flow pressure switch. This is connected in
series with the main contactor coil circuit, to remove power from the heater in the
event of over-temperature or airflow failure.
Under no circumstances is this circuit to
be by passed.
Ensure sufficient earth connection to terminal is provided.
The speed controller must not switch off fan independent of control system or
allow airflow to fall below stated volume on the electric heater battery.
Fan run on timer required. Turn off 0-10 V heat demand signal 2 minutes before fan
enable signal.
Separate cables should be installed for 0-10 VDC, Control signal and 24 VAC switched
enable signal in compliance BS7671/2008.
6.4 Notes
(EHB option only)
Warning
Caution
Important
