T E C H N I C A L A N D I N S T A L L A T I O N
6
Immersion Heater
The SmartLineE range of tanks have the facility for fitting a 3kW immersion heater for back-up emergency use
when the primary heating fails not as a permanent form of summer time heating, this heater must be wired to
its own 13 Amp fused spur and as described in the installation instructions for Thermco immersion heaters.
Installation Instructions for Thermco Immersion Heaters.
Contact details: www.thermco.com - [email protected] - 01502 576800
1.
Ensure mains voltage corresponds to the voltage rating of the heater as shown on the rating label
on the terminal cover.
2.
Install the heater into the water tank, using the gasket or ‘O’ ring supplied (the use of sealing
compounds is not recommended). Use a shaped spanner to tighten (stillsons should not be used).
3.
It is essential that water fully covers the heating element to a depth of at least 100mm. Under no
circumstances must the heater be permitted to run dry – serious damage may result to the heater
in addition to danger of personal injury and damage to property.
4.
Check for possible leakage before wiring.
5.
Wire the heater in accordance with the diagram below. The heater should be wired through a
double pole isolating switch or controller, having contact separation of at least 3mm using
1.5sqmm flexible cable, 85°C rubber insulated HOFR sheathed, complying with BS6141 Table 8. It
must be fully earthed. Ensure all terminals are securely made, however do not use excessive force
when tightening.
6.
In the event of the manually resettable cut out operating, isolate the heater from the mains,
investigate and identify the cause of cut out, rectify before resetting and then re-energise the
heater. Replace the terminal cover securely before re-energizing.
7.
If problems continue replace the thermostat(s).
8.
All heaters conform to EEC directive 76/889 for radio interference and comply with BS 800:1977.
WARNING!
UNDER NO CIRCUMSTANCES CAN THE IMMERSION HEATER BE SWITCHED ON BEFORE THE
PRIMARY TANK IS FILLED. SERIOUS DAMAGE MAY RESULT TO THE HEATER IN ADDITION TO
DANGER OF PERSONAL INJURY AND DAMAGE TO PROPERTY
IF HEATER IS SWITCHED ON WHEN
DRY.
4.
SYSTEM SCHEMATICS
Typical un-vented application
BEAB
APPROVED
Heater Series
A*D, B*D, C*D, D*D
(*may be either A,E or F)
Heater Series
A*S, B*S, C*S, D*S
(*may be either A,E or F)
