Initial Start-Up; Inspection, Maintenance And Service; Malfunctions - Dimplex CTHK 630 Installation And Operating Instructions Manual

5.7
Version with contactor control
VDE-tested contactors which are installed on site, for example, in
a control cabinet or a current distribution board are required for
installation. Separate contactors must be used for the safety
temperature limiter and the temperature controller. The
contactors must have a label identifying their safety function for
the water heater (flange heater). (TC and STL).
Power ratings for selecting the contactors can be seen in table 8
(technical data section) in the "switching assembly" column. The
safety temperature limiter contactor must be dimensioned for the
total output of the switching assemblies. After installation is
complete, the fault-free function of the contactors must be
checked.

5.7 Initial start-up

ATTENTION!
The cylinder must be filled with water prior to electrical start-up.
During the heating-up process, the water inside the cylinder must
flow out of the safety valve (with a pressure-resistant
connection), or else drip out of the overflow mixer tap or flow into
a connected expansion vessel (with a pressureless connection).
ATTENTION!
Hot water outlet pipe and parts of the safety valve may become hot.
6 Inspection,
maintenance and
service
In the case of very hard water, limescale which
has formed on the inside of the cylinder and free-floating
limescale
deposits must be removed
by a qualified technician after one to two years of operation.
NOTE
The inner tank of an enamelled hot water cylinder must not come into
contact with boiler cleansing compound. Do not use a decalcifying pump.
Do not use abrasive cleaning agents or paint thinners (such as
nitro, trichloroethylene, etc.) for cleaning the device. After
cleaning, rinse the device thoroughly and monitor the heating-up
process.
E-6
7

Malfunctions

If the water inside the cylinder is not being heated, please check
whether the miniature circuit breaker/circuit breaker or the safety
fuse has been activated. Also check the temperature controller
setting.
In all other cases, please do not try to solve the problem yourself.
Please contact a qualified heating technician or our after-sales
service.