Resol DeltaSol Fresh 20 Owner's manual

*11210905* 11210905
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Manual
en
Installation
Operation
Commissioning
Manual for the
specialised craftsman
DeltaSol Fresh®20
www.resol.de

en
2
Subject to technical change. Errors excepted.
© 20180905_11210905_DeltaSol_Fresh_20.monen.indd
Safety advice
Please pay attention to the following safety advice in order to avoid danger and
damage to people and property.
Instructions
Attention must be paid to the valid local standards, regulations and directives!
Information about the product
Proper usage
The controller may only be used in technically suitable systems in compliance with
the technical data specied in these instructions. Due to its design the controller
must be mounted and operated as described in these instructions!
Improper use excludes all liability claims.
CE Declaration of conformity
The product complies with the relevant directives and is therefore
labelled with the CE mark. The Declaration of Conformity is available
upon request, please contact the manufacturer.
Target group
These instructions are exclusively addressed to authorised skilled personnel.
Only qualied electricians should carry out electrical works.
Initial installation must be effected by the system owner or qualied personnel
named by the system owner.
Description of symbols
WARNING! Warnings are indicated with a warning triangle!
ÎThey contain information on how to avoid the danger
described.
Signal words describe the danger that may occur, when it is not avoided.
• WARNING means that injury, possibly life-threatening injury, can occur.
• ATTENTION means that damage to the appliance can occur.
Note
Notes are indicated with an information symbol.
ÎArrows indicate instruction steps that should be carried out.

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Navigator
Installation page 4
For the electrical connection of the controller, see page 4.
Commissioning page 6
For commissioning the controller after the installation, see page 6.
Settings page 11
For making adjustments, see page 11.
Contents
1 Overview .............................................................................................. 4
2 Installation of the controller .............................................................. 4
2.1 Overview........................................................................................................................4
2.2 Outputs ..........................................................................................................................5
2.3 Sensors ...........................................................................................................................5
2.4 Mains connection .........................................................................................................5
2.5 Data communication / Bus ..........................................................................................6
3 Commissioning of the controller....................................................... 6
3.1 Operation.......................................................................................................................6
3.2 Commissioning menu..................................................................................................7
3.3 Menu structure .............................................................................................................8
3.4 Selection menu..............................................................................................................9
3.5 Status menu ...................................................................................................................9
3.6 Balance values ............................................................................................................ 10
4 Settings............................................................................................... 11
4.1 DHW heating menu ................................................................................................. 11
4.2 Emergency operation menu.................................................................................... 12
4.3 Circulation menu....................................................................................................... 12
4.4 Disinfection................................................................................................................. 15
4.5 Miscellaneous menu.................................................................................................. 16
4.6 Manual mode menu................................................................................................... 17
4.7 User code.................................................................................................................... 17
4.8 Reset ............................................................................................................................ 17
5 Troubleshooting................................................................................. 18
6 Accessories ........................................................................................ 20
6.1 Sensors and measuring instruments ..................................................................... 20
6.2 Interface adapters...................................................................................................... 20
7 Index ................................................................................................... 21

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1 Overview
• Pre-assembled with all electrical components and ready to plug in
for easy commissioning
• DHW heating to a set temperature
• Digital VFD 2 - 40 Fast Grundfos Direct Sensor™
• Quick reaction to changes in the draw-off ow rate
• Circulation function (temperature-, time- and demand-controlled)
Technical data
Inputs: 3 inputs for Pt1000, 2 digital Grundfos Direct Sensor™ (VFD 2 - 40 Fast)
Outputs: 2 semiconductor relays, 1 PWM output
Switching capacity: 1 (1) A (100…240 V~) (semiconductor relay)
Total switching capacity: 2 A 240V~
Power supply: 100 ... 240V~ (50…60 Hz)
Supply connection: typeY attachment
Power consumption: < 1 W (standby)
Mode of operation: type 1.Y
Rated impulse voltage: 2.5 kV
Data interface: RESOL VBus®
VBus®current supply: 35 mA
Housing: plastic, PC-ABS and PMMA
Mounting: wall mounting, mounting into patch panels is possible
Indication/Display: System-Monitoring-Display
Operation: 3 push buttons
Ingress protection: IP 20/ EN 60529
Protection class: I
Ambient temperature: 0…40 °C
Pollution degree: 2
Dimensions: 172 x 110 x 46 mm
2 Installation of the controller
2.1 Overview
WARNING! Electric shock!
Upon opening the housing, live parts are exposed!
ÎAlways disconnect the device from power supply
before opening the housing!
ATTENTION! ESD damage!
Electrostatic discharge can lead to damage to electronic com-
ponents!
ÎTake care to discharge properly before touching
the inside of the device!To do so, touch a grounded
surface such as a radiator or tap!
Note
Connecting the device to the power supply must always be the last step
of the installation!
Note
It must be possible to disconnect the device from the mains at any time.
ÎInstall the mains plug such that it is accessible at any time.
ÎIf this is not possible, install a switch that can be accessed.
Do not use the device if it is visibly damaged!
Mains connection (100 … 240 V~) is to be carried out by means of the pre-con-
nected mains cable. Only qualied electricians may carry out electrical works. At-
tention must be paid to the valid local standards, regulations and directives!
Make sure the hydraulic system is properly grounded!

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14
N
S1
Te mp. Sensor Pt1000
S2 S3 VBus PWM
NL
NR2
R1
IP 20
11
R1
Digital
Sensor
1 (1) A (100 ... 240) V~
R2 1 (1) A (100 ... 240)V~
15
12 13
16
17
100 ... 240 V~
50-60 Hz
T4A
18 19
Primärseite Sekundärseite
WW
VFD
R2
S3
KWSp_RL
Sp_VL
P1
R1/PWM
S1
P2
primary side secondary side
2.4 Mains connection
14
N
S1
Te mp. Sensor Pt1000
S2 S3 VBus PWM
NL
NR2
R1
IP 20
11
R1
Digital
Sensor
1 (1) A (100 ...
240) V~
R2 1 (1) A (100 ...
240) V~
15
12 13
16
17
100 ... 240 V~
50-60 Hz
T4A
18 19
DE-33659 Bielefeld
nemux
The power supply of the device must be carried out via an external switch and has
to be 100 … 240 V~ (50 … 60 Hz). Flexible cables are pre-connected with strain
reliefs and the corresponding screws.
• Connect the mains cable to the following terminals:
18 = Neutral conductor N
19 = Conductor L
13 = Protective conductor PE ⏚
2.2 Outputs
The controller is equipped with 2 semi-conductor relays:
• Relay 1 (primary pump) is used for power supply of the primary pump:
R1 = Output R1
N = Neutral conductor N
PE = Protective conductor PE ⏚
• Relay 2 (secondary pump) is used without speed control:
R2 = Output R2
N = Neutral conductor N
PE = Protective conductor PE ⏚
The controller is additionally equipped with a PWM output for connecting high-ef-
ciency pumps:
14
N
S1
Te mp. Sensor Pt1000
S2 S3
VBus PWM
NL
NR2
R1
IP 20
11
R1
Digital
Sensor
1 (1) A (100 ... 240) V~
R2 1 (1) A (100 ... 240) V~
15
12 13
16
17
100 ... 240 V~
50-60 Hz
T4A
18 19
DE-33659 Bielefeld
nemux
PWM output, GND
PWM output, control signal
The PWM output is used for speed control of the primary pump
2.3 Sensors
14
N
S1
Te mp.
Sensor Pt1000
S2 S3
VBus PWM
NL
NR2
R1
IP 20
11
R1
Digital
Sensor
1 (1) A (100 ... 240) V~
R2 1 (1) A (100 ... 240) V~
15
12 13
16
17
100 ... 240 V~
50-60 Hz
T4A
18 19
DE-33659 Bielefeld
nemux
The controller is equipped with 4 sensor inputs in total.
• Temperature sensors have to be connected to the terminals S1 … S3 (either
polarity).
• Connect the Grundfos Direct SensorTM to the upper Digital Sensor input.

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Adjusting values
minimum
value
adjusted value
(not yet con rmed)
maximum
value
current value saved
ÎAdjust the value with buttons 1 or 2, brie y press the button 3; the adjustment
range is displayed as a slide bar.
ÎAdjust the desired value with buttons 1 and 2.
The value is displayed with the handle of the slide bar. Until the new value is saved,
the previously stored value is displayed on the upper right-hand side of the display.
ÎBrie y press button 3 to con rm the adjustment.
ÎPress button 3 again in order to store the adjustment and to get back to the
adjustment menu.
If button 3 is not pressed after an adjustment has been made, the display switches
back to the menu after a few seconds.The adjusted value will not be stored.
Selecting a function or option
ÎSelect the function or option with buttons 1 or 2, then brie y press button 3.
ÎSelect Ye s to activate, or No to deactivate the function. Brie y press button
3 to con rm the selection.
2.5 Data communication / Bus
14
N
S1
Te mp. Sensor Pt1000
S2 S3
VBus
PWM
NL
NR2
R1
IP 20
11
R1
Digital
Sensor
1 (1) A (100 ... 240) V~
R2 1 (1) A (100 ... 240) V~
15
12 13
16
17
100 ... 240 V~
50-60 Hz
T4A
18 19
DE-33659 Bielefeld
nemux
VBus®terminals
The controller is equipped with aVBus®for data transfer with and energy supply to
external modules.The connection is to be carried out at the two terminals marked
VBus (any polarity).
3 Commissioning of the controller
3.1 Operation
1
2
3
backwards (-)
selection / adjustment mode
(OK)
forwards (+)
The controller is operated via the 3 buttons below the display. Button 1 (+) is
used for scrolling forwards through the menu and increasing adjustment values.
Button 2 (-) is used for the opposite direction. Button 3 (OK) is used for se-
lecting channels and con rming adjustments.

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3.2 Commissioning menu
1
2
3
backwards (-)
selection /
adjustment mode
forwards (+)
ÎConnect the device to the mains
The controller runs an initialisation phase.
When the controller is commissioned or when it is reset, it will run a commission-
ing menu. The commissioning menu leads the user through the most important
adjustment channels needed for operating the system.
Adjustment mode
Operation
Changing a value
Con rming a value
to the next
parameter
1
1
3
3
2
2
The commissioning menu consists of the channels described in the following.
Language
ÎAdjust the desired menu language.
Date
ÎAdjust the date. First of all adjust the year, then the month and then the day.
Time
ÎAdjust the clock time. First of all adjust the hours, then the minutes.
HW set temp.
ÎAdjust the hot water set temperature.
Note
In order to use the circulation function, a circulation unit is required!
Circulation
ÎAdjust the circulation mode.
No = no circulation
Thermal = temperature-controlled circulation, with timer (optional)
Demand = Circulation with draw-off detection
Therm.+Dem.= temperature-controlled circulation with additional draw-off
detection, with timer (optional)

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Depending on the circulation mode selected, further adjustment channels will ap-
pear:
Calibration
Automatic secondary circuit  ow rate detection and measurement while the
secondary pump is active (for further information about the offset see page
13)
ÎIn order to carry out the calibration press button 3.
Note
If a circulation is implemented, make sure to run a calibration! Until the
calibration has been carried out, the secondary pump is blocked!
In this case, the acknowledgeable message Run calibr. circ. pump is
displayed.
Ton circ.
ÎAdjust the switch-on temperature for the circulation (only if circulation
mode = Thermal or Therm.+Dem.).
Toff circ.
ÎAdjust the switch-off temperature for the circulation.
Circ. run.
ÎAdjust the runtime for the secondary pump (only if circulation mode = De-
mand or Therm.+Dem.).
OK
ÎSelect the menu item OK
Note
In order to ensure DHW heating also in the case of a sensor fault,
please see chap. 4.2.
3.3 Menu structure
system status
current date current time
currently adjusted
HW set temperature
date of the last draw-off
operation status display
During normal operation, the main display is shown.
Main display
The main display shows the current date and time, the set temperature, date and
time of the last draw-off, operation status and system status.
Operation status display
The operation status display always shows one of the following status:
Ready: Water heating possible upon draw-off
Draw-off: Draw-off in process
BP: Blocking protection active (non-adjustable: daily at 12:00 o'clock,
runtime: 6 s)
0 DHW: No DHW heating possible
!Tmax off: Maximum temperature limitation active
Circ. active: Circulation active
Emergency operation: Emergency operation active

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System status
The system status is displayed graphically as a smiley.The different smiley faces have
the following meanings:
= System OK
= Warning
= Error
If the circulation  ow rate calibration has not yet been carried out, the message No
Calibration will be displayed as a system status warning:
The type of warning or error that has occurred will be displayed as a status in the
operating status display.
Warning and error messages are marked by a triangle in the status menu ⚠.
3.4 Selection menu
In the selection menu, different submenus can be selected and several values can
be adjusted.
ÎIn order to get from the main display to the selection menu, brie y press a
button.
ÎSelect the desired submenu by pressing buttons 1 and 2, and con rm with
button 3.
3.5 Status menu
In this menu, status and error messages as well as current measured values are
displayed.
Possible warnings and error messages
⚠Sensor defective
This message indicates a sensor fault.The name of the defective sensor or sensors
is displayed below:
VFD secondary circuit
The VFD sensor in the secondary circuit is defective.
T-St  ow
The temperature sensor in the store  ow is defective.
T-Circ.
The temperature sensor in the secondary circuit is defective.
⚠Calibration circ. pump
The circulation  ow rate offset has not yet been carried out. The secondary pump
is blocked.
Measured and display values
Emergency operation
Primary pump emergency operation is active.
T-St.  ow
Display range: 0 … 100 °C, defective
Indication of the store  ow temperature in °C.
Disinfection active
Thermal disinfection is active.

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Overrun active
Overrun is active.
T-HW
Display range: 0 … 100 °C, defective
Indication of the hot water temperature in °C.
Hygiene rem.
Display range: 0 … 60 min
Indication of the remaining time of the hygiene disinfection mode in min.
Decontamin. rem.
Display range: 0 … 240 min
Indication of the remaining time of the decontamination disinfection mode in min.
Overrun rem.
Display range: 0 … 60 min
Indication of the remaining overrun time of the decontamination disinfection
mode in min.
Draw-off
Display range: 0 … 45 l/min, defective
Indication of the  ow rate at the VFD in the secondary circuit.
Circulation
Display range:Active, Inactive
Indication of the circulation status.
Note
In order to use the circulation, a circulation unit is required!
T-Circ.
Display range: 0 … 100 °C, defective
Indication of the temperature in the secondary circuit.
Time
Display range: 00:00 … 23:59
Indication of the current clock time.
Date
Display range: 01.01.2001 … 31.12.2099
Indication of the current date.
SW version
Indication of the software version number.
Hydraulic
Indication of the hydraulic variant adjusted.
3.6 Balance values
In this menu, balance values are displayed.Values that are not measured will not
be displayed.
Resetting balance values
Setting the balance values back to 0 is only possible in the expert level.
In order to set a balance value back to 0, proceed as follows:
ÎScroll to the desired value.
ÎSelect the value by pressing button 3.
A security enquiry appears.
ÎCon rm the security enquiry by selecting Ye s .
The balance value has been set back to 0.
In order to set all balance values back to 0, select the menu item Reset all.
A security enquiry appears.
ÎCon rm the security enquiry by selecting Ye s .
All balance values have been set back to 0.
Operation
Indication of the operating days since controller connection.
Draw-off qty
Indication of the draw-off quantity since commissioning in m³. Only values higher
than the adjusted draw-off threshold will be displayed.
T-St._ min
Indication of the store  ow minimum temperature in °C.
T-St._ max
Indication of the store  ow maximum temperature in °C.
T-HW min
Indication of the hot water minimum temperature in °C.
T-HW max
Indication of the hot water maximum temperature in °C.