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ORIGINAL INSTRUCTIONS
8
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
Wiring
8
Warning
Do not connect any unit to an electrical supply voltage outside of the specification.
This document refers to 0-10 V control input.
In some cases a 4-20 mA control input may have been provided.
Important
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.
Warning
Caution
Important
The electrical supply
must be fully isolated
before attempting to affect any work on this unit.
All electrical connections to any unit must be carried put in accordance with the current
edition of the I.E.E Regulations, only competent Electricians should be allowed to affect any
electrical work to our units.
Warning
It is the customer’s responsibility to supply earth fault protection through the building
installation device and a dedicated, isolated power supply with overload protection.
Important
It is recommended that the cable entry point should be at the end of the control
section as shown in the figure below.
It is the responsibility of the installer to ensure that a suitable cable gland (giving
adequate protection and strain relief) is fitted, and in doing so also ensure that no
internal components are damaged during
this installation. Make certain all swarf is
removed before use.
Important
Recommended
cable entry point
Recommended cable
entry point
Remove Cover before
making cable entry.