Uponor Ecoflex Supra PLUS cable set S1 Mounting Instruction Download

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M O U N T I N G I N S T R U C T I O N

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Uponor Ecoflex Supra PLUS control unit

Product description

The Uponor Ecoflex Supra PLUS control unit is
an electronic regulator developed to control the
Uponor Supra Plus water pipe, which is fitted
with a self-adjusting heat cable. The control unit
has two different functions. You can select either
thermostat control equipped with a temperature
sensor, or an operation time clock function based
on a fixed time period.

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 IP23. The housing
can also be mounted on top of an instrument
box, in which case the tightness class is IP20. 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 thick-
ness 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 IP23. Install the sensor in
the Uponor Ecoflex Supra PLUS pipe element, in
the conduit provided for it. 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 pipe element,
so that it functions as a protector for the sensor
cable. If possible, the sensor should be installed
at the point that is the most susceptible to free-
zing. If the sensor cannot be put at the coldest
point, then this must be taken into account in the
control unit settings or an operation time clock
must be used.

Connection

(Figures 2 and 3)

Remove the adjusting wheel, detach the fixing
screw and remove the cover part of the control
unit (Figure 2). Connect the 230 V AC supply
cable (Figure 3a), the sensor cable (Figure 3b),
the heat cable of the Supra (Figure 3c) and the
protective earth, to the incoming supply cable
and the protective flex of the heat cable. The
thickness of the connecting wires is determined
according to the size of the main fuse. 10A -> 3
x 1.5 mm

and 16A -> 3 x 2.5 mm

. The instal-

lations should be carried out in accordance with
the fixed installation method. The control unit
also has a potential-free switch (230 VAC or SELV
voltage, max load 5A) 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.

Start-up and use

(Figure 4)

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 adjust-
ment 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 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 envi-
ronment 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.

a) Supply

cable

230 VAC

b) Sensor

c) Heat

cable

Remote control

Figure 2

Figure 3

Figure 4

Operating voltage

230 VAC