4
x
Set-up and installation
●
Secure cables leading outdoors to the storage tank
(fig. 4-34).
●
Install the cable cover onto the back of the controller housing
again.
●
Close the front panel and screw in the locking screw.
●
Attach the protective cover.
●
Establish the mains connection between the ROTEX
GCU compact and the circuit breaker in the junction box of
the domestic power supply (see chap. 12, fig. 12-5).
– Use an all-pole separating main switch on the junction box
of the domestic power supply (separate isolator in accord-
ance with EN 60335-1).
– Ensure that the polarity and earthing is correct.
●
After completion of all electrical connection tasks, re-establish
the power supply to the relevant circuit breaker.
4.7.2 Integrated heating circulation pump and 3-way
valve
The ROTEX GCU compact is equipped as standard with
– an integrated heating circulation pump
– a 3-way distributor valve (3UV DHW)
– a 3-way mixer valve (3UVB1)
The heating circulation pump and the 3-way valves are con-
nected at the factory, the valve drive is connected.
4.7.3 Temperature sensors and further electric
components
Instructions for temperature sensors
The ROTEX GCU compact can regulate the flow temperature de-
pendent on the weather. The external temperature sensor
(
RoCon OT1
) contained in the scope of delivery is required for
this function. For information on the installation location and elec-
trical connection see chap. 4.7.4.
Connections of the PCB connectors:
J2
3UVB1
J3
AUX connection
J6
Mains connection
J8
Sensors, switching contacts
J9
FlowSensor (FLS1)
J12
3UV DHW
J13
CAN system bus
J14
Circulation pump P
Z
J16
Room thermostat
Cable colours:
bl
blue
br
brown
ge
yellow
gn
green
n.b.
Contact not occupied
Mains voltage 230 V,
50 Hz
Tab. 4-3 Legend for fig. 4-33
You can find a detailed description of the individual con-
nections in chap. 12.6.
Fig. 4-34 Laying and securing cabling on the storage tank
Fig. 4-35 Installing the cable cover
CAUTION!
Clamped cables can cause short-circuits and malfunctions.
●
When closing the front panel, make sure that communication
cables are not jammed.
Fig. 4-36 Setup and position assignment of 3-way valves
CAUTION!
The use of temperature sensors that are not approved or
unsuitable for the unit can lead to major malfunctions during
regular operation of the ROTEX GCU compact and impair the
control function of the unit.
●
Use only the ROTEX temperature sensor available as an
accessory.
Summary of Contents for GCU compact 315
Page 81: ...13 x Notes 13 Notes...
Page 82: ...13 x Notes...
