Mono
single phase
Tri
three phase
It is important that the items underlined are followed precisely to ensure correct and safe operation of the steam unit.
The steam unit comprises a plastic
cylinder containing three heating elements, two probes, two relays, a transformer, a
circuit board, and a water inlet solenoid valve.
One of the heating elements is
switched through a 220v relay; the other two elements are switched through a 24v relay.
The two heating elements controlled by the 24v relay provide the temperature control and
operate only when the set temperature is greater than the shower enclosure temperature.
The function of the digital
controller is to provide remote switching of the two relays. The controller contains a
timer and receives information on the enclosure temperature from a thermocouple in the
enclosure-mounted unit.
For testing purposes the Steam unit
can be operated without the digital controller.
Shorting the blue and brown wires
(marked Z-Z in the generator) supplies current to the main circuit board and will open the
water inlet valve and close the 230v contactor when the cylinder is over half full of
water. One of the three cylinder heating elements will now heat.
Shorting the red and white wires
(marked X-X in the generator) when the blue and brown wires are already shorted will close
the 24v contactor; the remaining two cylinder heating elements will now heat.
It is important not to short the
yellow and black wires (marked V-V in the generator), which are the 12v a/c supply to the
controller.
The steam
unit can be wall or floor mounted. The unit dimensions are:
Depth: 260mm, width: 520 height: 680 for 6 and 9 Kw units
Depth: 260mm, width: 670 height: 680 for 12, 15 and 18Kw
units
The
dimensions above allow for left hand side access for electrical connections and right hand
access for water inlet on the right and steam outlet(s) on top.
1.
Water supply;
connect the plastic water inlet situated at the lower left side of the steam unit to a local
isolating valve. The supply pipe can be a flexible pipe of the type used for washing
machine connections.
Electrical Supply;
Single and three phase
generators are identical apart from a bridge on the live terminals
The
generator is supplied as single or three phase depending on your order. It is possible to
convert a Single to three-phase unit by removing the bridge.
|
|
Mono
single phase |
Tri
three phase |
2.
Connect to a local isolator. It is important
that the isolator switch is situated close to the steam unit so that the unit can be
isolated for maintenance and testing. The supply to the isolator must be via an earth
leakage fuse rated at 30ma. Single Phase units are fitted with a bridge. The 230 v
single-phase supply should be wired to the fuse terminal just to the right of the neutral
connector. The bridge supplies 230v to the two connectors to the left. If three-phase
supply is available each of the three phases is wired to each of the three connectors. A major short circuit will occur if the unit is
wired as a three-phase unit without removing the bridge. The neutral wire is still
required for three phase installations.
3. Steam
outlet; connect the steam outlet situated on the top of the steam unit
to the steam.Head(s) in the steam enclosure. It is important that the steam piping
minimum 22 - 25mm does not contain any traps or sharp bends that can permit steam to
condense and trap water. The steam connection can rise from the steam outlet to the
highest point, then the piping must drop continuously to the Steam Head and must not
rise again. The steam pipe must not
descend to a lower level than the steam head. Units
rated at 12Kw and above must be piped with two steam pipes
Digital
controller connections. Ensure that the electrical power to the steam unit is off. Incorrect
wiring will cause damage to the controller.
Single enclosure mounted
control. The wiring inside the controller is sealed. The wiring is completed at the
generator.
White to earth then on
the terminal block from left to right :
Pink – Blue – Yellow– Green –
Brown - Grey
Note for testing purposes
grey wires 5v d/c
1.
Open the
local water-isolating valve.
2.
Switch on the
local electrical isolator
3. Press the on /off button.. The controller will illuminate.
4.
Press the SELECT button to illuminate the led next to "Set
TEMP". Press the red or green arrows to select the desired temperature - 40 deg for
example.
5. Press the SELECT button to illuminate the led next to "Set TIME". Press the red or green arrows to select the desired time - 30 minutes for example
Note these selections are memeorized by the controller and unless these selections need to be modified simply press the ON/OFF button next time.
The following
sequence of events should occur;
· After approx. 5 seconds the water inlet valve will open and the cylinder will commence to fill. The red heating sign on the external controller will illuminate. The display will toggle between actual enclosure temperature, desired enclosure temperature and set time. The set time will commence counting down only when the enclosure temperature has reached the set temperature.
·
The
two main contactors that operate the steam unit will close then approx. 5 seconds later
will re-open. Note if the unit is already full of water the contactors will remain closed
and heating will commence immediately.
·
After
approx. 1 minute the water level in the cylinder will have risen to a level permitting the
heating contactors to close again so that water heating commences
·
After
approx. 10 minutes steam will start to appear in the steam enclosure.
· The enclosure temperature will rise until a temperature of 40 deg. C is reached. The red heating light will go out.
·
Switch off the on/off button on the controller and if the
steam unit is not going to be used for an extended period switch off the electrical power
at the local isolator and turn off the water valve.
For further
assistance please call your supplier
or Majestic Systems :Tel 00 (33) 04 92 08 21 10, Fax 00 (33) 04 93 29 27 45
Espace Carros, 1 Avenue BP446, 06515 Carros France