Vaillant Mixer module VR 61 Specification sheet

0020124814_00 GB 022011 – Subject to alterations
Manufacturer
Supplier
Supplement to the Operating and Installation Instructions No. 0020044359
for mixer module VR 61
The mixer module VR 61/2 can be used together with controller types VRC 430/VRC 430f and VRC 470.
>Observe the following instructions on installation, commissioning and operation.
VRC 430/VRC 430f
>Observe the Operating and Installation Instructions No. 0020044359 enclosed with the mixer module.
VRC 470
>When installing the mixer module, observe the enclosed Operating and Installation Instructions No. 0020044359.
>For commissioning and operation observe the Installation instructions No. 0020116690 and the Operating
Instructions No. 0020116689 for the VRC 470.
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For the heating engineer/for the owner
Operating and Installation Manual
Mixer module VR 61
Mixer module for VRC 430 / VRC 430f VR 61
GB
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2
Contents
1 Notes on the documentation 3
1.1 Storage of the documents ....................................3
1.2 Symbols used ...........................................................3
1.3 Validity of the instruction manual ......................3
2 Description of the device...............................4
2.1 Identification plate..................................................4
2.2 CE-mark/conformity................................................4
2.3 Intended use.............................................................4
3 Safety instructions and regulations ...........4
3.1 Safety instructions..................................................4
3.2 Regulations...............................................................4
4 Incorporation of the VR 61
in the heating system ....................................5
4.1 Hydraulic drawing 1.................................................6
4.2 Hydraulic drawing 2................................................7
4.3 Hydraulic drawing 3................................................8
4.4 Hydraulic drawing 4................................................9
5 Assembly ....................................................... 10
5.1 Scope of delivery................................................... 10
5.2 Assembling VR 61 mixer module....................... 10
5.3 Assembling VR 10 standard sensor ....................11
6 Electrical installation.....................................11
6.1 Connecting VR 61 mixer module .........................11
7 Start-up......................................................... 13
7.1 Installation assistant .............................................13
7.2 VRC 430 / VRC 430f Operating level
for the expert technician..................................... 14
7.3 Function floor drying............................................ 19
8 VRC 430 / VRC 430f Operating level
for the operator..............................................19
8.1 Display screens in the operating level
for the operator.................................................... 20
9 Technical data ............................................. 22
Contents
Operating and installation manual for VR 61 mixer module
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3Operating and installation manual for VR 61 mixer module
1 Notes on the documentation
The following notes are intended to help you throughout
the entire documentation.
Further documents apply in combination with this
operating and installation manual.
We accept no liability for any damage caused by failure
to observe these instructions.
Other applicable documents
– The operating and installation instructions for the
VRC 430 or VRC 430f
– The operating and installation manuals of the
heating system
– All instructions for the accessories
The following sections are intended for the expert
technician:
– 4 Incorporation of the VR 61 in the heating system
– 5 Assembly
– 6 Electrical installation
– 7 Start-up
The following sections are intended for the operator:
– 8 VRC 430 / VRC 430f Operating level for the
operator
1.1 Storage of the documents
The operator of the system is responsible for the
storage of these operating and installation manuals so
that they are available if required.
1.2 Symbols used
Observe the safety instructions in this manual during
installation , assembly and operation of the equipment!
eDanger!
Danger of death from electric shock!
dDanger!
Immediate risk of serious injury or death!
HAttention!
Danger of burning and scalding!
aAttention!
Potentially dangerous situation for the product
and environment!
hNote!
Useful information and instructions.
⇒ Symbol for a necessary task
1.3 Validity of the instruction manual
This operating and installation instruction manual is only
applicable to equipment with the following part
numbers:
00 2002 8527 00 2002 8530
00 2002 8528 00 2002 8531
00 2002 8529 00 2002 8532
The part number of your unit can be obtained from the
identification plate.
Notes on the documentation 1
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2 Description of the device
The mixer module VR 61 is used for the system extension
of the VRC 430 or VRC 430f regulators.
Different configurations of heating system can be
realised using the VR 61 mixer module.
The four basic configurations correspond to the four
hydraulic drawings, described in greater detail in Section
4 Incorporation of the VR 61 in the heating system.
2.1 Identification plate
The identification plate of the mixer module VR 61 is on
the inside of the housing cover.
2.2 CE-mark/conformity
The CE label documents that the mixer module VR 61, in
connection with Vaillant heating equipment, fulfils the
basic requirements of the following guidelines:
- Electromagnetic compatibility directive
(Guideline 89/336/EEC of the council)
2.3 Intended use
The mixer module VR 61 is a state-of-the-art appliance
which has been constructed in
accordance with recognised safety regulations .
Nevertheless, there is still a risk of death or serious
injury to the user or others or of damage to the device
and other property in the event of improper use or use
for which it is not intended.
The mixer module VR 61 is a system component which,
in combination with the VRC 430 or VRC 430f,provides
the control two heating circuits, a storage
tankcharging circuit or a circulation pump.
Any other use or extended use is considered to be use
other than intended. The manufacturer or supplier is not
liable for any resulting damage. The owner alone bears
any risk.
Intended use also includes observing the operating and
installation instructions and all other documents having
validity.
3 Safety instructions and
regulations
The mixer module VR 61 must be installed by a
qualified engineer , who is responsible for adhering to
the existing standards and regulations .
We accept no liability for any damage caused by failure
to observe these instructions.
3.1 Safety instructions
eDanger!
Connections carrying voltage!
When working in the open mixer module VR 61
and in the control cabinet of the heating
equipment there is a danger to life by electric
shock.
Before working on the mixer module VR 61 and
in the control cabinet of the heating equipment
turn off the power supply and secure against
re-engagement.
The LED (green) on the PCB of the mixer
module VR 61 must not light up.
3.2 Regulations
Standard wires must be used for wiring.
230 V lines must be sleeved lines (e.g. NYM 3x1,5).
Flexible lines must not be used for 230 V lines .
Minimum cross-section of the wires:
– Connection lead 230 V
(pump or mixer connection cable) 1,5 mm2
- Low-voltage leads
(sensor or Bus leads) 0,75 mm2
Do not exceed the following maximum wire lengths:
- Sensor connection 50 m
- Bus lead 300 m
If sensor and BUS lines run parallel with 230 V cables
for more than 10 m, they must be laid separately.
All connection lines must be fixed with the table
terminals provided in the cabinet.
Do not use free terminals of the appliances as support
terminals for other wiring.
The mixer module VR 61 must be installed in dry rooms.
All wiring must be in accordance with Building
Regulations Part P and BS 7671 (IEE Wiring Regulations),
and must be carried out by a suitably qualified person
2 Description of the device
3 Safety instructions and regulations
Operating and installation manual for VR 61 mixer module4
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5Operating and installation manual for VR 61 mixer module
4 Incorporation of the VR 61 in
the heating system
The application possibilities of the mixer module VR 61
are shown in the four hydraulic diagrams.
In each case these are maximum configurations.
Some of the components can be optional.
Hydraulic drawing 1
– an uncontrolled heating circuit
– a controlled heating circuit (controlled 3 way valve)
– circulation pump for hot water controlled by VR 61
– hot water via VUV (priority changeover valve)
Hydraulic drawing 2
– an uncontrolled heating circuit
– a controlled heating circuit (controlled 3 way valve)
– circulation pump for hot water controlled by VR 40
– charging pump for storage tank controlled by VR 61
Hydraulic drawing 3
– an uncontrolled heating circuit
– a controlled heating circuit (controlled 3 way valve)
– circulation pump for hot water controlled by VR 61
– charging pump for storage tank controlled by heating
equipment
Hydraulic drawing 4
– two uncontrolled heating circuits (controlled by motor
valves)
– heating pump integrated in the heating equipment
– circulation pump for hot water controlled by VR 40
– hot water controlled by motor valve via VR 61
The following conventions apply to the hydraulic
drawings:
Lines:
Representation Meaning
eBUS line twin core
Sensor line low voltage
Control line 230 V~
Heating feed
Heating return
Hot water feed/return, infeed
Table 4.1 Line representation in the hydraulic drawings
Designations:
Description Meaning
AF External sensor (VRC 693 or VRC 9535)
HK1-P Pump for heating circuit 1
HK2-P Pump for heating circuit 2
HK2 Mixer valve for heating circuit 2 (controlled)
LP Charging pump for storage tank
SP 1 Storage probe (VR10)
VF 1 Feed sensor 1 (VR 10)
VF 2 Feed sensor 2 (VR 10)
VR 40 Additional module (integrated in heating
equipment)
VR 81 Remote control unit
VRC 9642 Maximum thermostat, accessories
ZP Circulation pump for hot water
Table 4.2 Designations in the hydraulic drawings
Incorporation of the VR 61 in the heating system 4
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4.1 Hydraulic drawing 1
Fig. 4.1 Hydraulic drawing 1
– an uncontrolled heating circuit
– a controlled heating circuit (controlled 3 way valve)
– circulation pump water controlled by VR 61
– Hot water via VUV (priority changeover
valve,integrated in the heating equipment)
4 Incorporation of the VR 61 in the heating system
Operating and installation manual for VR 61 mixer module6
VR 61
VRC 430VR 81
AF (VRC 693,
VRC 9535)
VF 1 (VR 10)
SP 1 (VR 10)
VF 2
(VR 10)
VRC 9642
HK1-P
HK2-P
HK2
230 V ~
ZP
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7Operating and installation manual for VR 61 mixer module
4.2 Hydraulic drawing 2
Fig. 4.2 Hydraulic drawing 2
– an uncontrolled heating circuit
– a controlled heating circuit (controlled 3 way valve)
– circulation pump for hot water controlled by VR 40
– charging pump for storage tank controlled by VR 61
hNote!
Observe on hydraulic drawing 2 the required
configuration with the aidof the installation
assistant (see also Section 7.1):
On the relay output ZP/LP "LP“ must be
selected on display screen A3.
Incorporation of the VR 61 in the heating system 4
VR 61
VRC 430VR 81
AF (VRC 693,
VRC 9535)
VF 1 (VR 10)
SP 1 (VR 10)
VF 2
(VR 10)
VRC 9642
HK1-P
HK2-P
HK2
230 V ~
ZP
LP
VR 40
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Operating and installation manual for VR 61 mixer module8
4.3 Hydraulic drawing 3
Fig. 4.3 Hydraulic drawing 3
– an uncontrolled heating circuit
– a controlled heating circuit (controlled 3 way valve)
– circulation pump for hot water controlled by VR 61
– charging pump for storage tank controlled by heating
equipment
VRC 430 VR 81
HK1-P
230 V ~
LP
VR 61
ZP
AF (VRC 693,
VRC 9535)
SP 1 (VR 10)
VF 2
(VR 10)
VRC 9642
HK2-P
HK2
4 Incorporation of the VR 61 in the heating system
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9Operating and installation manual for VR 61 mixer module
4.4 Hydraulic drawing 4
Fig. 4.4 Hydraulic drawing 4
– two uncontrolled heating circuits, Zone and Zone 2,
(switched by motor valves)
– heating pump integrated in the heating equipment
– circulation pump for hot water controlled by VR 40
– hot water controlled by motor valve via VR 61
aAttention!
If the installation, assembly or configuration is
incorrect frost-damage to the heating system
may occur.
In order to ensure frost protection and
comfortable operation of the two uncontrolled
heating zones, Zone 1 and Zone
2on hydraulic diagram therefore, the remote
control unit VR 81 must also be installed (VR
81 monitors e.g. Zone 2, the controller
VRC 430 Zone 1).
In the operating level for the expert technician
(see Section 7.2) "Thermostat" must be
selected in each case on the display screens C8
and C10 with room control.
hNote!
The designations HK1-P, HK2-P and LP in the
hydraulic drawing 4 repeat the terminal
allocations on the VR 61.
The control lines of the motor valve for both the
heating circuits are connected to the terminals
HK1-P and HK2-P of the VR 61.
The control line of the motor valve for hot water
is connected to the terminal LP of the VR 61.
hNote!
Observe on hydraulic drawing 4 the required
configuration with the aidof the installation
assistant (see also Section 7.1):
The heating circuit type HC2 "Zone" must be
selected on display screen A2.
On the relay output ZP/LP "LP“ must be
selected on display screen A3.
VR 40
VRC 430VR 81
HK1-P
230 V ~
VR 61
HK2-P
ZP
AF (VRC 693,
VRC 9535)
SP 1 (VR 10)
LP
Incorporation of the VR 61 in the heating system 4
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Operating and installation manual for VR 61 mixer module10
5 Assembly
The mixer module VR 61 is wall-mounted in proximity
with the associated function units .
The adjustment of all required parameters is carried out
using the controller VRC 430 or VRC 430f via eBUS. All
connections of the associated function units take place
directly on the mixer module VR 16 via ProE terminals.
5.1 Scope of delivery
Before starting the installation, check the scope of
delivery for completeness and lack of damage.
Pos. Number Component
1 1 Mixer module VR 61
2 1 VR 10 standard sensor
3 1 Mounting accessories (screws, plugs)
Table 5.1 Scope of delivery of the mixer module VR 61
hNote!
Depending upon the configuration of the heating
system, additional sensors may be required as
storage tank sensors.
Only the standard sensor VR 10 from the
Vaillant accesories programme should be used.
The heating control using Vaillant components
is matched to the sensor characteristic curve
of the VR 10.
Temp. in °C R in kOhm Temp. in °C R in kOhm
10 5,363 55 0,806
15 4,283 60 0,671
20 3,372 65 0,562
25 2,700 70 0,473
30 2,176 75 0,399
35 1,764 80 0,339
40 1,439 85 0,288
45 1,180 90 0,247
50 0,973
Table 5.2 Standard sensor VR 10, allocation temperature
measurement value
5.2 Assembling VR 61 mixer module
Fig. 5.1 Opening the casing
⇒ Release the screw on the top of the casing .
⇒ Tilt the casing cover forwards slightly and remove.
1
2
Fig. 5.2 Fitting the mixer module VR 61
Key
1 Mounting apertures
2 Cable brackets
5 Assembly
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11Operating and installation manual for VR 61 mixer module
⇒Mark the two fixing points at a suitable position in
accordance with the fixing openings (1).
⇒Drill two holes for the suitable plugs and screw the
casing securely in position.
⇒The electrical installation is carried out as
described in Chapter 6.
⇒Insert the casing cover back into the hinges and
hinge the casing cover back up into position.
⇒Screw the casingcover in position in accordance with
Fig. 5.1.
5.3 Assembling VR 10 standard sensor
The VR 10 standard sensor is so designed that it can be
used as a cylinder sensor, (e.g. as an immersion sensor
in a cylinder sensor tube) or as a flow sensor
(e.g. in a hydraulic switch).
The fixing tape enclosed can also be used to fix the
VR 10 as a contact sensor onto a heating pipe. We
recommend that the pipe with the sensor is insulated
to ensure optimum temperature measurements.
Fig. 5.3 Standard sensor VR 10 as contact sensor
6 Electrical installation
The electrical connection must be done by a suitably
qualified heating engineer who is responsible for
complying with the existing standards and guidelines.
eDanger!
Connections carrying voltage!
When working in the open mixer module
VR 61 and in the control cabinet of the heating
equipment there is a danger to life by electric
shock.
Before working on the mixer module VR 61 and
in the control cabinet of the heating equipment
turn off the power supply and secure against
re-engagement.
The LED (green) on the PCB of the mixer
module VR 61 must not light up.
If the casing of the mixer module VR 61 is closed , open
it as described under Chapter 5.2.
6.1 Connecting VR 61 mixer module
The mains input is provided by the user up
to the mixer module VR 61.
The eBUS connection to the mixer module VR 61 can be
branched off at any point in the eBUS system
(see Fig. 6.1).
⇒Wire up the mixer module VR 61 as shown in Fig. 6.2.
hNote!
The cables for the 230 V mains connection and
for e-BUS connection are not included in the
supply.
The storage tank sensor 1 (SP1, accessories
VR 10) is connected to the wiring harness of
the heating equipment (see the documents
which also apply, installation instructions
heating equipment). This also applies if the
storage tank charging pump is connected
directlyinto the mixer module VR 61.
If a hydraulic switch is fitted the feed sensor 1
(VF1, accessories VR 10) is mounted in the feed
behind or within the hydraulic switch. The
connection is carried out via the edge
connector X8 (included in the controller
VRC 430 or VRC 430f) in the control cabinet
of the heating equipment (see Fig. 6.3).
Assembly 5
Electrical installation6
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Operating and installation manual for VR 61 mixer module12
230 V~
VRC 430 VR 61
1
2
3
Fig. 6.1 Connection of eBUS and mains cable in the system
Key
1 Heating unit
2 230 V line from the user
3 eBUS connection (twin core)
230 V~
230 V~
PE N L
PE N L
PE N L
PE N L
PE N L
PE N L
ZP/LP
ZP/LP
HK1-P
HK1-P
PE N L
PE N L
HK2-P
HK2-P
+ -
+ -
BUS
BUS
2 1
2 1
VF2
VF2
1
2
PE N Auf Zu
PE N Auf Zu
HK2
HK2
3
4
M
567
230 V~ 5 V / 24 V
Fig. 6.2 Terminal allocation of the mixer module VR 61
Key
1 Mains connection
2 Charging pump or circulation pump
3 Pump heating circuit 1
4 Mixer valve
5 Pump heating circuit 2
6 Controller VRC 430
7 Feed sensor 2
6 Electrical installation
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13Operating and installation manual for VR 61 mixer module
hNote!
If a charging pump or circulation pump is
connected, the configuration is carried out
using the installation assistant of the controller
VRC 430 or VRC 430f.
2
1
Fig. 6.3 Fitting the feed sensor 1
Key
1 Feed sensor 1 (VR 10)
2 6 pole edge connector X8 for plug socket location in the control
cabinet of the heating equipment
After connecting the electrical installation:
⇒Secure all the lines in the VR 61 with the included
cable brackets (see Fig. 5.2).
⇒Insert the casing cover back of the VR 61 into the
hinges and hinge the casing cover
back up into position.
⇒Screw the casing cover in
position in accordance with Fig. 5.1.
7 Start-up
The commissioning of the mixwe module VR 61 is carried
out in conjunction with the commissioning of the
controller VRC 430 or VRC 430f.
Proceed in accordance with the instructions in the
manual of the VRS 430 or VRC 430f controller.
7.1 Installation assistant
When commissioning for the first time, you will be
supported by the installation assistant.
With the installation assistant you can enter the most
important parameters of the heating system.
The following differences are produced by the
installation of the mixer module VR 61 in the heating
system with respect to the standard configuration as
described in the manual for the VRC 430 or VRC 430f:
– Display screen A2
Installation assistant
System configuration
Mixer mode HC1
> Select
Cylinder active
BK

A 2
Mixer mode HC2 MK
Base display (G1) HC1
Fig. 7.1 Installation assistant display screen A2
The configuration of the heating system is shown in
display screen A2.
In the heating circuit mode HC1 you can select between
burner circuit (BK) and inactive.
In the heating circuit mode HC2 you can select between
mixer circuit (MK), inactive and Zone.
hNote!
If the heating system is structured in
accordance with hydraulic drawing 4, i.e. two
uncontrolled heating circuits, "Zone" must be
selected in heating circuit mode HC2.
In the case of the storage tank you can switch between
active and inactive.
Using the parameter basic display (G1) you can
determine whether the display screen G1 is not shown at
all (value "OFF") or whether the values from heating
circuit 1 or heating circuit 2 are dispalyed.
Electrical installation 6
Start-up 7
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Operating and installation manual for VR 61 mixer module14
– Display screen A3
Installation assistant
System configuration
Relay output ZP/LP:
> Select
ZP

A 3
Fig. 7.2 Installation assistant display screen A2
hNote!
If the heating system is structured according to
hydraulic drawing2 or 4, the relay output ZP/LP
must be set to "LP".
– Display screen A5
Installation assistant
Module test
Module selection
> Select
VR 61

A 5
Activation heat generator OFF
Sensors
Actors HK1-P
VF2
Fig. 7.3 Installation assistant display screen A5
On display screen A5 of the installation assistant you
can select the components for which a function test
should be carried out (the components are actuated
briefly).
It is a pre-requisite that "VR 61" is selected as the
module selection.
Sensors Actuators
VF2 Feed sensor 2 LP/ZP Charging pump/
circulation pump
HK1-P Pump heating circuit 1
HK2 Mixer valve
HK2-P Pump, heating circuit 2
Table 7.1 Components for function test in display screen A5
aAttention!
Improper installation/assembly can lead to
damage to the heating system.
A function test of the components should be
carried out using the installation assistant
within the framework of the start-up.
If you wish to leave the installation assistant:
⇒Turn the left hand adjuster of the controller
VRC 430 VRC 430f in a clockwise direction to
reach the display screen A6.
⇒Confirm the termination of the installation with
"Yes".
hNote!
If you have confirmed the end of the installation
with "Yes" you can only access the
installation assistant via the code-protected
expert technician level (see
installation instructions VRC 430 or
VRC 430f).
7.2 VRC 430 / VRC 430f Operating
level for the expert technician
The operating level for the expert technician serves to
display and for the setting/modification of
specific operating data. This will match the control
system to the heating system in an optimum manner.
This is advisable if the heating installation has other
components in addition to the heating circuit 1 (HC 1)
(e.g. heating circuit 2, hot water storage tank, ventilation
system, solar system).
The operating level for the expert technician includes
the display screens C1 to C26 and the display screens
A1 to A6 of the previously described installation
assistant.
Depending upon the configuration of the heating system,
the display screens not required are hidden.
The display screens C1 to C26 in the controller
VRT430 or VRC 430f in the same sequence as shown in
the following Table 7.2.
This table shows which parameters can be adjusted and
changed.
The following differences in the displat screens are
produced by the installation of the mixer module
VR 61 in the heating system with respect to the standard
configuration as described in the manual for the
VRC 430 or VRC 430f:
C2, C4, C10, C11, C15, C22, C23 and C26
7 Start-up
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15Operating and installation manual for VR 61 mixer module
Display
screen Title display screen adjustable operating values
(just display = A)
Remarks Unit Min.
value Max. value Step width Preset value
C1 HC1
Information Feed set target (A) Flow temperature target value °C 1
Pump status (A) On, Off
FBG connection /
room actual value Remote control connected?
Room actual display
°C Yes, no and
0.5
C2 HC2
Information Feed set target (A) Flow temperature target value °C 1
Actual feed VF2 (A) Actual temperature feed
sensor 2;
does not appear if
"Zone" selected in
heating circuit mode HC2
in A2
(Hydraulic drawing 4)
°C 1
Mixer status (A) does not appear if
"Zone" selected in
heating circuit mode HC2
in A2
(Hydraulic drawing 4)
Open, closed,
off
Pump status (A) On, Off
FBG connection /
room actual value Remote control connected?
Room actual display
°C Yes, no and
0.5
C3 Hot water
generator
information
Installation sensor
VF1 (A) Actual value at the feed sensor 1 or the internal
sensor of the heat
generator
°C 1
Status
flame heating unit
(A)
Off, heating
mode, hot
water mode
C4 Hot water
information
Values appear
only if "active"
is selected for
storage tank in
A2
Current hot water
set target value (A) Hot water set target temperature of the
storage tank
°C 1
Storage probe 1 (A) Hot water actual
temperature of the
storage tank
°C 1
Charging pump
status (A) appears only if in A3 for relay output"LP"has
been selected
On, Off
Circulation pump
status (A) On, Off
C8 HC1
parameters Heating circuit type (A) Status display Heating circuit,
inactive
Switch-on room
temperature selectable with wall mounting of the
controller or remote
control
none,
intervention,
thermostat
none
Summer operation
mode Offset If the outside temperature > target
room temperature +
Summer Offset, the
heating unit switches off
R0301 1
Table 7.2 Display screens in the level for the expert technician
Start-up 7
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Operating and installation manual for VR 61 mixer module16
Display
screen Title display screen adjustable operating values
(just display = A)
Remarks Unit Min.
value Max. value Step width Preset value
C9 HC1
parameters Set-back temperature For the times between the time windows you
can set a set-back
temperature.
If your expert technician
has set the frost
protection function, the
set-back temperature is
automatically 5 °C. There
will be no display as set-
back temperature
°C 5 30 1 15
Heating curve in accordance with the
diagram operating
instructions Chapter 4.7.3
0,2 4 0,05-0,1 1,2
Minimum
temperature Minimum feed temperature
Heat zone 1
°C 15 90 1 15
C10 HC2
parameters Heating circuit type (A) Status display Heating circuit
inactive,
Zone
Switch-on room
temperature selectable with wall mounting of the
controller or remote
control
none/Switch
on/
Thermostat
none
Summer operation
mode Offset If the outside temperature > target
room temperature +
Summer Offset, the
heating unit switches off
if, in A2, forheating
cuircuit mode "Zone" is
selected (hydraulic
drawing 4) and for room
switching "Thermostat"
is selected, the values
from HC1 are applicable
for Summer Offset
operation mode
R0301 1
7 Start-up
Table 7.2 Display screens in the level for the expert technician
(continuation)
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17Operating and installation manual for VR 61 mixer module
Display
screen Title display screen adjustable operating values
(just display = A)
Remarks Unit Min.
value Max. value Step width Preset value
C11 HC2
parameters Set-back temperature For the times between the time windows you
can set a set-back
temperature.
If your expert technician
has set the frost
protection function, the
set-back temperature is
automatically 5 °C. There
will be no display as set-
back temperature
°C 5 30 1 15
Heating curve in accordance with the
diagram operating
instructions Chapter 4.7.3
if, in A2, for heating
circuit mode HC2 "Zone"
is selected (hydraulic
drawing 4) the value
from HC1 for the heating
curve is applicable
0,2 4 0,05-0,1 1,2
Minimum
temperature Minimum feed temeprature for HC2;
if, in A2, for heating
circuit mode HC2 "Zone"
is selected (hydraulic
drawing 4) the value
from HC1 for the
minimum temperature is
applicable
°C 15 90 1 15
Maximum
temperature Maximum feed temeprature for HC2;
does not appear if
"Zone" selected in
heating circuit mode HC2
in A2
(Hydraulic drawing 4)
°C 15 90 1 75
C15 Hot water
parameters Storage tank charging offset In order to avoid short heating up periods
(improved utilisation of
condensing technology);
appears only if in A3 for
relay output"LP"has
been selected
R15401 15
Charging pump
overrun Only relevant if the charging pump is directly
connected to the mixer
module VR 61 (hydraulic
drawing 2);
appears only if in A3 for
relay output"LP"has
been selected
Mins. 0 10 1 5
Parallel charging does not appear if
"Zone" selected in
heating circuit mode HC2
in A2
(Hydraulic drawing 4)
On, Off Off
C16 Hot water
parameters Legionella protection day Weekday or block of days; Storage tank
heated to 70 °C for one
hour
OFF, MO, TU,
WE, TH, FR,
SA, SU, MO-
SU
OFF
Start legionella
protection Time of
the day
0:00 24:00 0:10 4:00
Start-up 7
Table 7.2 Display screens in the level for the expert technician
(continuation)
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Operating and installation manual for VR 61 mixer module18
Display
screen Title display screen adjustable operating values
(just display = A)
Remarks Unit Min.
value Max. value Step width Preset value
C21 Total system
parameters Mode Auto_OFF Determines the heating control outside the
programmed time
window
Frost
protection,
ECO, set-back
Frost
protection
Frost protection
delay time Delay time of the start of the frost protection
function or the ECO
function.
Hrs. 0 12 1 4
Max. pump blocking
time If the feed set target temperature is achieved
for a longer period of
time, the heating is
switched off for the
prescribed pump
blocking time (dependent
upon the external
temperature)
Mins. Off, 5 60 1 15
C22 Total system
parameters Max. pre-heating time Before the start of the first time window Mins. 0 300 10 0
Max. pre-switch off
time Before the end of a time window Mins. 0 120 10 0
AT through-heating External temperature
from which continuous
through-heating takes
place
°C OFF,
-25 +10 1 Off
Excess temperature Increases the set heating
circuit target value this
can, in certain
circumstances, improve
the control performance
of the mixer;
if, in A2, for heating
circuit mode HC2 "Zone"
is selected (hydraulic
drawing 4) the value 0
for excess temperature is
applicable
R0151 0
C23 Floor drying
HC2 does not
appear if
"Zone" selected
in heating
circuit mode
HC2 in A2
(Hydraulic
drawing 4)
floor drying - day See Section 7.3Function
floor drying Day 0 29 1 0
floor drying/feed
target value (A) See Section 7.3Function
floor drying °C in accordance
with
temperature
profile
C24 Service Telephone number
FHW Entry of the telephone number for the service
requirement
Changing the code
number 0000 9999 each 1 1000
Maintenance date Day/Month/Year
adjustable
C25 Tools Outside
temperature
correction
Matching of the external
sensor R-551,0 0
Correction room
actual value Matching the room temperature sensor R-330,5 0
Display contrast 0 15 1 6
C26 Software
versions Software-Version VR 61 (A) Display of version number
Table 7.2 Display screens in the level for the expert technician
(continuation)
7 Start-up
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19Operating and installation manual for VR 61 mixer module
7.3 Function floor drying
The floor-drying function is used to “heat dry” a freshly-
laid heating layer according to instructions.
hNote!
The floor drying function is only available for
the controlled heating circuit (HC2)
If this function is activated, all selected operating modes
are stopped.
The flow temperature of the controlled heating circuit is
controlled according to a pre-set program regardless of
the outside temperature.
Starting temperature: 25 °C
Days after starting the
function Target feed temperature for this day [°C]
125
230
335
440
545
6-12 45
13 40
14 35
15 30
16 25
17-23 10 (frost protection function,
pump in operation)
24 30
25 35
26 40
27 45
28 35
29 25
Table 7.3 Temperature profile floor drying
The controller VRC 430 or VRC 430f shows, in the
operating level for the expert technician, display screen
C23, the operating mode for floor drying with the
current day and the associated target feed temperature.
The current day can be set manually.
When the function is started, the current time of the
start is saved. The day is
changed exactly at this time.
8 VRC 430 / VRC 430f
Operating level for the operator
The operating level for the operator serves to indicate
and to adjust/modify the basic parameters. The setting/
changing of the parameters can be carried out by the
operator without any special previous knowledge and
during normal operation.
The parameters are shown in various display screens in
the display area of the controller VRC 430 or VRC 430f .
The operating concept is described in the operating and
installation instructions of the controller VRC 430 or
VRC 430f.
The following differences in the displat screens are
produced by the installation of the mixer module VR 61
in the heating system with respect to the standard
configuration as described in the manual for the VRC
430 or VRC 430f:
– Display screen G1 simplified basic display
Th. 12.01.06
11:46
3.0 °C Outside
Auto 19.0 °C
VRC 430
Fig. 8.1 Simplified basic display
Depending upon the adjustment method undertaken by
the expert technician, this screen is either not displayed
at all or shows the values from heating circuit 1 or 2.
⇒Ask your expert technician for the current setting.
– Display screen G2 basic display
56.0 °C
Auto
> Select room temperature
21.0 °C
Th. 12.01.06
11:46
3.0 °C Outside
HC1
AutoDHW
HC2 20.0 °C Auto
Fig. 8.2 Basic display
Both heating circuits (HC1 and HC2) are displayed in the
basic display. For both heating circuits you can modify
the target room temperature and the operating mode in
each case.
Start-up 7
VRC 430 / VRC 430f Operating level for the operator 8
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