Uponor Ecoflex Supra PLUS control unit
Installation manual
1 Uponor Ecoflex Supra PLUS control unit
1-4
IC0000115
The Uponor Ecoflex Supra PLUS control unit is an electronic
regulator designed for controlling the self-regulating frost protection
cable of the Supra PLUS pipe. The control unit has two different
functions, either a function with a temperature sensor or a fixed timer
function.
1.1 Kit contents
Figure 1
Item
Description
A
Control unit for Supra
1 pc
B
Fixing screws for box
2 pcs
C
Plug, 5 x 25 mm
2 pcs
D
Lead-throughs for cable, 4-12 mm
4 pcs
E
External temperature sensor, 10 m
1 pc
F
Installation manual for Supra control unit
1 pc
1.2 Installation instructions
Figure 2
Fix the base of the housing to the wall with screws (hole interval
60 mm, maximum screw head diameter 6,5 mm). The tightness class
of the surface installation housing is IP 23. The housing can also be
mounted on top of an instrument box, in which case the tightness
class is IP 20. The fixing holes are dimensioned according to the
most generally used instrument boxes. On the back cover of the
housing, for installation on top of an instrument box, an area with
reduced thickness has been provided, which can be pierced for the
lead-through of cables. Fix the cover of the housing to the base part
with M2,5 screws. If the lead-through seals to be used are any other
than those supplied in the package, then they must be approved for
the cable thickness to be used and for tightness class IP 23. Install
the sensor in the conduit of the Supra PLUS pipe. The sensor is
supplied ready installed inside the insulating sleeve. Lead the
insulating sleeve through the lead-through seal and into the conduit
of the Supra PLUS pipe. The sensor should be installed in the
location most susceptible to freezing. If the sensor cannot be installed
in the coldest location, this must be taken into account when setting
the thermostat or the timer.
1.3 Connection
Figure 2 and 3
Item
Description
A
Supply cable 230 V AC
B
Heating cable
C
External temperature sensor
D
Remote control
Remove the adjusting wheel, unscrew the fixing screw and remove
the cover of the thermostat. Connect the 230 V AC supply cable (A),
the Supra PLUS heating cable (B), the sensor cable (C), and the
protective earth to the incoming supply cable and the protective flex
of the heating cable. The thickness of the connecting wires is
determined according to the size of the main fuse. 10 A ->
3 x 1,5 mm² and 16 A -> 3 x 2,5 mm².
The installations should be carried out in accordance with the fixed
installation method. The control unit also has a potential-free switch
(230 V AC or SELV voltage, max load 5 A) for remote control, which
is activated in a fault situation. If necessary, punch a hole in the top
part of the device for the remote monitoring cable, which must be laid
according to the requirements of the control voltage.
1.4 Start-up and use
Figure 4
Item
Description
A
Upper LED light, cable load
B
Lower LED light, sensor fault
C
Indicator light, heat load
D
Adjusting wheel
E
Indicator light, power
F
Power switch
Turn on the Uponor Ecoflex Supra PLUS control unit using the switch
(F). When the control unit is on, the green indicator light (E) above
the switch will go on. Select the function alternative to be used. The
selection is made by setting the adjusting wheel of the control unit to
the desired adjustment range. The left adjustment range (pos. 6-10)
is for the thermostat function, and the right one (pos. 2-6) is for the
operation time clock. The adjustment ranges are limited by a
mechanical barrier. If you wish to change the mode of operation, pull
the adjusting wheel outwards from the control unit and turn the wheel
to the desired adjustment range (the mechanical barrier limiting the
adjustment ranges is at the 6 o’clock position). The adjustment range
for the thermostat function of the Uponor Ecoflex Supra PLUS control
unit is 0…10 °C. If the adjusting wheel is set to the 0 point of the
adjustment range, then the control unit will endeavour to keep the
temperature of the flow pipe at +0 °C. The temperature adjustment
must nevertheless be made according to the case, depending on the
location of the sensor and the environment of use. The adjustment
range of the operation time clock corresponds to a switching cycle of
30 minutes. In the maximum position, at 100 %, the heat cable is on
throughout the whole cycle. In the minimum position, at 10 %, the
heat cable is on for 3 min. and off for 27 min. The cycle period should
be selected according to the case, depending on the prevailing
conditions. When the operation time clock is being used for the
thawing of a frozen pipe, set the selector at 100 %. When the heating
load is in the switched-on state, the red indicator light (C) above the
adjusting wheel will be on, showing that the cable is being heated.
The control unit’s fault diagnostics system will detect any breaks or
short circuits in the sensor cable and whether the heating cable is
connected or not. The top LED (A) indicates that there is no load in
the cable, and the bottom LED (B) indicates that the sensor is faulty
(this check is only made in the thermostat mode). If a fault occurs in
the sensor, the thermostat operation changes automatically to the
operation time clock. In this case, the device operates at a fixed pulse
ratio of 50 %. In this fault situation, it is not possible to adjust the
operation time clock. When the regulator is operating normally, a faint
clicking noise is heard when the heating load goes on and off.
Uponor Ecoflex Supra PLUS control unit
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Installation manual
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