Installation 5
uniSTOR GB
17
All internal wiring is factory mounted.
The thermostat which controls the DHW temperature (1,
fig. 10) is adjustable between 20 and 65 °C. The built in
safety thermal cut out operates at 90 °C. Should the
thermal cut out be brought into operation, the
motorized 2 port valve will be operated and shut the
primary flow to the cylinder. Press the reset button (2,
fig. 10) to reset thermal cut out and motorised valve.
Important:
Before resetting the thermal cutout or changing
the temperatur setting of the thermostat, set
the electrical supply off.
Connections to wiring box
•
Provide a wiring box adjacent to the cylinder to make
the electrical connections.
•
Connect the boiler terminals to the corresponding
terminals of the wiring box.
•
Connect the uniSTOR cylinder controls to the wiring
box as shown in figure 10.
•
Connect the 2 port valve flying lead to the terminals
of the wiring box.
•
Connect the terminals of the programmer and room
thermostat to the terminals of the wiring box.
•
Connect a 3 amp fused mains supply to the terminals
of the wiring box.
Note:
All wiring must be carried out in accordance with
BS 7671: Requirements for electrical installations
(IEE Wiring Regulations, 16th edition).
•
Check that the sensors from the immersion heater
and the cylinder are positioned correctly in the tubes.
Note:
A special accessory is offered for the electrical
connections between the uniSTOR and an
ecoEURO appliance (No. 307 215).
5.4.5.3 Connection details for control systems utilising 2 x 2 port motorised valves via external
wiring box
Fig. 11 Connection details for control systems utilising 2 port motorised valve
Diagram only applies to the specific controls mentioned
L
N
L
N
3
4
5
N
L
CENTRAL
HEATING
ON
HOT
WATER
ON
HOT
WATER
OFF
3 amp fused
main supply
ecoTEC
terminal strip
Programmer
for programmer connections see fig. 16.d
L
N
L
N
3
4
5
5
3
6
7
8
External wiring box
3
4
5
6
7
8
9
10
N
N
L
L
(Do not use pre-wired printed circuit board type)
not used
EARTH
BLUE
BROWN
GREY
ORANGE
Hot water 2 port motorised valve
4
E
5
3
10
E
C
A
N
4
N
4
2
4
4
3
3
3
3
3
2
2
2
2
1
1
L
2
1
L
1
1
1
1
3
C
B
E
E
E
E
Vaillant VRT 9090
ACL Drayton Digistat 2, 3, 4
ACL Drayton RTS 1, 2
Danfoss Randall RX-1
Danfoss Randall RMT 230
Danfoss Randall RET 230
Tower SS
Honeywell T6360
Horstmann HRT 1
Siemens-Landys & Staefa RAD 1
Sunvic TLX 2000 series
5
9
6
L
N
E
Room thermostat
2
3
E
1
10
7
E
uniSTOR Cylinder
E
EARTH
BLUE
BROWN
GREY
ORANGE
Central heating 2 port motorised valve
4
E
5
3
9
