Changing The Operation Mode; Templock/Normal; Changing 'Dip Switch' Default Setting; Changing Operating Mode Templock/Normal - Redring Selectronic Premier Handbook

5. A stabiliser is built into the flow
valve to automatically compensate
for small fluctuations in water
pressure that frequently occur in
households.
There are three further controls to
cater for exceptional reductions in
water pressure to prevent the
shower from getting too hot.
a) If the flow of water is less than
1.0 l/min the power to the
elements is switched off, but the
solenoid valve remains open
allowing water to flow through
the shower.
b) If the outlet temperature sensor
senses an excessive
temperature the flow of water
and the heating elements will
automatically switch off. The
electronics will signal over
Temperature condition (see
"over temperature shutdown"
section).
c) A two stage mechanical thermal
cut-out is mounted on the top of
the heat exchanger independent
of the electronics.
Stage one switches the power
off to the elements if it senses
an excessive temperature.
The switch operates with an
audible click and will reset if
cold water is run through the
shower.
Stage two only operates if an
extreme temperature is sensed.
The cut out will permanently
switch off and it will then have
to be replaced.
6. A pressure relief device is fitted to
safeguard against abnormal
pressure conditions, and provides
a level of appliance protection
should an excessive build of
pressure occur within the shower.
If this operates a replacement part
will be required.
DIP
SWITCH
WARNING
THIS
PRODUCT
MUST BE
EARTHED
LOGIC
PCB
THERMAL
CUTOUT
HEAT
EXCHANGER
PRESSURE
RELIEF
VALVE
OUTLET
TEMP
SENSOR
FLOW
FLOW
OUTLET
TRANSDUCER
VALVE
16
IMPORTANT Connect flying lead from PCB
to rear of the front cover - see
TERMINAL
BLOCK
Replace the front cover and fasten in position
with four screws.
TEMPLOCK
SWITCH
SOLENOID
VALVE
Changing The Operating Mode

Templock/Normal

INLET
COVER
WARNING! Switch OFF the electricity
at the isolating switch before removing
the cover.
POWER
PCB
On the extreme right hand side of the PCB
mid way up is the '4 Way Temp Limit Slider
Switch' (See Diagram 8).
BRASS
PLEASE NOTE! The Selectronic Premier is
COOLER
factory set with the 'Temp Limit Slider Switch'
set at 'Locked Position 1'.
After the unit is commissioned, you have the
MOTOR
option of choosing from any of three different
lockable temperature settings plus normal
operation position from left to right.
Remove the front cover taking care not to strain
the flying lead.
Change the switch to the desired temperature
control position.
Locked Position 1
(Extreme Left)
Temperature 34-40 C Nominal
Adjustment Range
Replace and refasten the front cover.
Switch on electricity. Check that the unit operates correctly.
PLEASE NOTE! The Temperature Lock light on the front cover of the shower will not illuminate if
Normal Position 4 has been selected.

Changing 'DIP Switch' Default Setting

WARNING! Switch OFF the electricity at the isolating switch before removing the cover.
On the PCB directly to the left of the transformer there are two sets of vertically arranged 'DIP
Switches' (See Diagram 9) The top set of 3 are NOT TO BE CHANGED they are used for the shower
software configuration.
Diagram 6.
Diagram 7
EARTH
Diagram 8
POSITION
Locked Position 2 Locked Position 3
(First 'Click' from (Second 'Click' from
the Extreme Left) the Extreme Left)
° 34-41 C Nominal ° 34-43 C Nominal °
9
FIT EARTHING SLEEVE
NEUTRAL
LIVE
10mm
55mm
LOCKED
'1'
LOCKED
POSITION
'2'
LOCKED
POSITION
'3'
UNLOCKED
POSITION
'4'
Unlocked Position 4
(Extreme Right)
25-46 C Nominal °