ORIGINAL INSTRUCTIONS
7
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
Coil Installation
7
Coils should be piped according to any relevant local codes of practice. Where threaded
" % ~ " * <
% ! % < %? ~ Y
external piping is to be supported independently from the coil. Fluid filters are
recommended.
It is important that water and steam 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.
Fitting a frost thermostat at the unit inlet and ensuring that boilers run continuously in low
ambient temperatures can help to prevent this.
Heating coils do not cool immediately when the hot water supply is turned off. The residual
heat must be dissipated to avoid damage. The continuous running of the fan after
shutdown resolves this, by operation of a run-on timer; the recommended length of run-on
is
2 minutes minimum.
On
HeatLine
units, a Low Pressure Hot Water (LPHW) coil will be installed. Coils are normally
suitable for LPHW at 82 °C flow and 71 °C return temperature. LPHW coils are supplied as
< <? %% " ~
the coil connection. The air vent should be at the highest point, with the drain at the
lowest. 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.
The unit will have been supplied with connections either left or right-hand side looking in
direction of airflow. Please see order acknowledgment for confirmation of this handing.
" j= Y ~% %"
invalidate your warranty.
LPHW units feature a coil connection cover. To access during installation carefully remove
the cover by unfastening the fixings around the cover. Holes have been provided in the
housing base for pipe work entry. Please follow the appropriate manufacturer’s instruction
carefully when fitting a valve actuator. Ensure that the cover and fixings are replaced upon
completion.
