IDEAL PRO Series Installation And Servicing page 12

INSTALLATION
If two Ideal Pro cylinders are coupled together the secondary inlet and outlet pipes
must be balanced. The units must be fitted on the same level.
Note: No valves must be fitted between the expansion vessel and the storage cylinder(s).
Pressure & Temperature Relief Valve
This safety device is also pre-set at the factory and relieves before the temperature
reaches 100°C. It is also a Pressure Relief Valve, and is pre-set to 6 bar.
E
L
Immersion Heater Wiring
Immersion Heaters
The immersion heaters fitted to our units are 3kW 240V ~AC. Check that the mains
supply conforms to this, and all external wiring conforms to the most recent
revision of the IEE wiring regulations. An Incoloy element is used on this product for
standard domestic use and water conditions, use our Titanium elements in all other
circumstances, part number SH002.
The immersion heater is fitted into the hot water cylinder using an O-ring. After the
unit is filled with water check for leaks to determine if the O-ring has sealed and
tighten carefully using the appropriate tool. To prevent damage to the O ring do not
use excessive force to tighten the immersion heater.
The immersion heater is supplied with a thermostat which has been tested
for operation in the cylinder and complies with the European directives for
Electromagnetic compatibility and radio interference. It is Rated at 16 Amp 250V ~AC.
INSTALLATION
Combination Valve
I.V. I.V.
Thermostat Type TSE fitted in the
indirect cylinders - is supplied set
in position 5 at 60°C ± 4°C.
N
When ordering a replacement
part the TSR thermostat type will
be supplied with the immersion
heater.
The immersion thermostat has two terminals
A and B. The Live (brown) wire should be
connected to terminal A and the Neutral (blue)
wire should be connected to terminal B. It has
been our experience that Crimp terminals make
better connections. The immersion heater must
be fully earthed (earth post) and connected via
a double pole isolator switch having a contact
separation at least 3mm, see diagram opposite.
Danger of electrocution: before making any
adjustments to the thermostat isolate the
immersion heater from the mains electricity
supply at the fuse spur unit.
The immersion heater thermostats incorporate
a manual reset safety/overheat cut out
thermostat. Should this operate, investigate
the cause before pressing the red reset button
labelled safety. If there is no apparent fault
adjust the control setting down slightly to
prevent nuisance tripping.
If another heat source is used to heat the
cylinder and this is allowed to raise the water
temperature excessively then the overheat
thermostat will trip. This is likely on solar
thermal products when the solar thermostats
are set at high temperatures.
Important
Failure to follow the drain down procedure will
invalidate the warranty. (see page 16)
NEVER
REASON as the air remaining in the cylinder
NEVER
REASON as the water drains, the pressure
In line with good plumbing practice, use of
excessive flux should be avoided.
Page 12
drain the cylinder of hot water and
then close all cylinder inlets and
outlets.
cools the pressure inside the
cylinder will fall below atmospheric
and cause damage to the cylinder.
close the cold main and drain the
cylinder via any tap connected to it.
inside the cylinder may decrease
below atmospheric and this may
cause damage to the cylinder.