Resol DeltaSol Pool Instruction manual

DeltaSol®Pool
Manual for the
specialized craftsman
Mounting
Connection
Operation
Troubleshooting
*48004111* 48004111
Thank you for buying this RESOL product.
Read this manual carefully to get the best performance from this unit.
Please keep this manual carefully. www.resol.com
Manual
en-US/CA

2
en
© 20150317_48004111_DeltaSol_Pool.monus
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 solar controller is designed for use in solar thermal systems and heating sys-
tems in compliance with the technical data specified in this manual.
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.
Note
Strong electromagnetic fields can impair the function of the controller.
ÎMake sure the controller as well as the system are not exposed to
strong electromagnetic fields.
Target group
These instructions are exclusively addressed to authorised skilled personnel.
Only qualified electricians should carry out electrical works.
Initial installation must be effected by qualified personnel named by the manufac-
turer.
Description of symbols
WARNING! Warnings are indicated with a warning triangle!
ÎThey contain information on how to avoid the dan-
ger 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.
Disposal
• Dispose of the packaging in an environmentally sound manner.
• Dispose of old appliances in an environmentally sound manner. Upon request
we will take back your old appliances bought from us and guarantee an environ-
mentally sound disposal of the devices.
Subject to technical change. Errors excepted.

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1 Overview ..............................................................................................4
2 Installation ...........................................................................................5
2.1 Mounting........................................................................................................................5
2.2 Electrical connection...................................................................................................6
3 Basic system.........................................................................................8
4 Operation and function ......................................................................9
4.1 Buttons for adjustment...............................................................................................9
4.2 Control lamp.................................................................................................................9
4.3 Menu structure.............................................................................................................9
4.4 User code ....................................................................................................................10
4.5 Menu overview...........................................................................................................10
5 Commissioning..................................................................................10
6 Functions and options.......................................................................10
7 Messages.............................................................................................14
8 Balance values....................................................................................15
9 Troubleshooting.................................................................................16
10 Accessories ........................................................................................17
10.1 Sensors and measuring instruments......................................................................17
10.2 VBus® accessories ......................................................................................................17
10.3 Interface adapters ......................................................................................................18
Contents
DeltaSol®Pool
The RESOL DeltaSol®Pool is a controller for heating a swimming pool by means
of solar collectors and optimized operation of the filter system.
Backup heating of the swimming pool is adapted to solar gain and pool demand,thus
saving expensive energy. Furthermore, the controller is equipped with a functional-
ity control which shows if the system operates normally.
The controller has many additional pool functions such as: additional filter runtime,
maximum limitation of flow temperature and a flushing function.
The DeltaSol®Pool can easily be connected to other modules via the RESOL
VBus®.

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1 Overview
• Controller for heating a swimming pool by means of solar collectors
and optimized operation of the fi lter system
• Solar operating hours counter and energy metering
• 13 sensor inputs
• 7 relay outputs
• Functionality control
• RESOL VBus®
Technical data
Inputs: 10 sensor inputs for Pt1000, 1 x CS10, 1 x impulse and 1 digital input
Outputs: 6 semiconductor relays, 1 dry contact relay
Switching capacity:
1 (1) A 240 V~ (semiconductor relay)
2 (1) A 24 V / 240 V~ (dry contact relay)
Total switching capacity: 4 A 240 V~
Power supply: 100 … 240 V~ (50 … 60 Hz)
Supply connection: type Y attachment
Standby: < 2 W
Mode of operation: type 1.B.C.Y action
Rated impulse voltage: 2.5 kV
Data interface: RESOL VBus®
VBus®current supply: 30 mA
Functions: solar operating hours counter and energy metering, function control,
filter runtime monitoring, maximum flow temperature limitation, cooling function,
collector emergency shutdown, pump monitoring. Add-on backup heating of the
swimming pool depending on the need and on the power of the solar collectors
Housing: plastic, PC-ABS and PMMA
Mounting: wall mounting, mounting into patch panels is possible
Indication / Display: 4-line LC text display
Operation: 3 push buttons at the front
Ingress protection: IP 20 / EN 60529
Protection class: II
Ambient temperature: 0 … 40 °C / 32 … 104 °F
Pollution degree: 2
Dimensions: 156 x 227 x 62 mm / 8.9" × 6.1" × 2.4"
upper fastening point
lower fastening point
135 mm
155,0
220,0
202,0
12,0
62,0
155,0
220,0
202,0
12,0
62,0

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2 Installation
2.1 Mounting
WARNING! Electric shock!
Upon opening the housing, live parts are exposed.
ÎAlways disconnect the controller from power sup-
ply 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!
The unit must only be located in dry interior locations. It is not suitable for installa-
tion in hazardous locations and should not be placed close to any electromagnetic
fields.The controller must additionally be supplied from a double-pole switch with
contact gap of at least 0.12". Please pay attention to separate routing of sensor
cables and mains cables.
ÎOpen the front cover by pushing it. Unscrew the crosshead screw from the
cover and remove it along with the front cover from the housing.
ÎMark the upper fastening point on the wall and drill and fasten the enclosed
wall plug and screw leaving the head protruding.
ÎHang the housing from the upper fastening point and mark the lower fastening
point through the hole in the terminal box (centres 5.3"). Drill and insert the
lower wall plug.
ÎHang the housing from the upper fastening point and attach with the lower
screw.
ÎCarry out connection in accordance with the terminal allocation.
ÎInsert cover and attach with the cross-head screw. Close the front cover prop-
erly.
display
push buttons
fuse
cover
push-push locking mechanism
push to open
push to close
screw

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2.2 Electrical connection
WARNING! Electric shock!
Upon opening the housing, live parts are exposed.
ÎAlways disconnect the controller from power sup-
ply 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
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.
Note:
Connecting the device to the power supply must always be the last step
of the installation!
Do not use the device if it is visibly damaged!
2.2.1 Actuators (pumps, valves, etc.)
The controller is equipped with 7 relays to which loads (actuators) such as pumps,
valves and auxiliary relays can be connected:
• Relays R1 … R6 are semiconductor relays:
R1 … 6 = normally open R1 … R6
N = neutral conductor N (common terminal bloc)
PE = protective conductor PE (common terminal bloc)
• Relay R7 is a potential-free (dry contact) relay with changeover contact:
R7-M = center contact R7
R7-A = normally open R7
R7-R = normally closed R7
+
OK / Set
-
!
GND
S1
S2
S3
S4
S5
S7
S6
S8
CS10
Sensors
N
LN
semiconductor relay
Netz / Mains
100 ...
50-60 Hz
240 V~
L'
R7-A
R7-M
R7-R
floating relay
R3
R2
R1
T4A
Bus
VBus
S9
S10
R6
R5
R4
1 (1) A (100 ... 240) V~
4 (1) A (100 ... 240) V~
R1-R6
R7
imp
DIn
DeltaSol®Pool
Vor Öffnen Gerät spannungslos
schalten!
Isolate mains before removing
clamp-cover!
Masse-Sammelklemme benutzen
Use the Ground Collective Terminal Block
Schutzleiter-Sammelklemme
benutzen
Use PE Collective Block
Nullleiter-Sammelklemme
benutzen!
Use Neutral Conductor
Collective Block
neutral conductor - common terminal block
protective conductor - common terminal block
+
OK / Set
-
!
GND
S1
S2
S3
S4
S5
S7
S6
S8
CS10
Sensors
N
LN
semiconductor relay
Netz / Mains
100 ...
50-60 Hz
240 V~
L'
R7-A
R7-M
R7-R
floating relay
R3
R2
R1
T4A
Bus
VBus
S9
S10
R6
R5
R4
1 (1) A (100 ... 240)V~
4 (1) A (100 ... 240)V~
R1-R6
R7
imp
DIn
DeltaSol®Pool
Vor Öffnen Gerät spannungslos
schalten!
Isolate mains before removing
clamp-cover!
Masse-Sammelklemme benutzen
Use the Ground Collective Terminal Block
Schutzleiter-Sammelklemme
benutzen
Use PE Collective Block
Nullleiter-Sammelklemme
benutzen!
Use Neutral Conductor
Collective Block
VBus®
neutral conductor common terminal block
protective conductor common terminal block
power supply terminals
fuse
sensor terminals load terminals
sensor - ground - common terminal block

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2.2.2 Data communication / bus
The controller is equipped with the RESOL VBus®for data transfer with and ener-
gy supply to external modules.The connection is carried out at the two terminals
marked VBus®(either polarity). One or more RESOL VBus®modules can be con-
nected via this data bus:
• RESOL WMZ calorimeter
• RESOL large display
• RESOL Datalogger
+
OK / Set
-
!
GND
S1
S2
S3
S4
S5
S7
S6
S8
CS10
Sensors
N
LN
semiconductor relay
Netz / Mains
100 ...
50-60 Hz
240 V~
L'
R7-A
R7-M
R7-R
floating relay
R3
R2
R1
T4A
Bus
VBus
S9
S10
R6
R5
R4
1 (1) A (100 ... 240) V~
4 (1) A (100 ... 240) V~
R1-R6
R7
imp
DIn
DeltaSol
®
Pool
Vor Öffnen Gerät spannungslos
schalten!
Isolate mains before removing
clamp-cover!
Masse-Sammelklemme benutzen
Use the Ground Collective Terminal Block
Schutzleiter-Sammelklemme
benutzen
Use PE Collective Block
Nullleiter-Sammelklemme
benutzen!
Use Neutral Conductor
Collective Block
VBus terminals
2.2.3 Sensors
The controller is equipped with 13 sensor inputs in total.The ground connection
for the sensors has to be carried out via the ground terminal block (GND).
• Temperature sensors have to be connected to the terminals S1 … S10 and
GND (either polarity).
• The irradiation sensor (CS10) is to be connected to the terminals CS10 and
GND with correct polarity. Connect the terminal GND of the sensor to the
terminal GND of the controller (ground terminal block), and the terminal CS of
the sensor to the terminal CS10 of the controller.
• A flowmeter can be connected to the terminals Imp and GND (either polarity).
• An external message signal can be connected to the digital input Din.When the
signal contact closes the input Din, the message “!message ext.” is generated.
This signal is treated like an error, which means that the control lamp flashes
red and the message relay is possibly energized.
+
OK / Set
-
!
GND
S1
S2
S3
S4
S5
S7
S6
S8
CS10
Sensors
N
LN
semiconductor relay
Netz / Mains
100 ...
50-60 Hz
240 V~
L'
R7-A
R7-M
R7-R
floating relay
R3
R2
R1
T4A
Bus
VBus
S9
S10
R6
R5
R4
1 (1) A (100 ... 240) V~
4 (1) A (100 ... 240) V~
R1-R6
R7
imp
DIn
DeltaSol
®
Pool
Vor Öffnen Gerät spannungslos
schalten!
Isolate mains before removing
clamp-cover!
Masse-Sammelklemme benutzen
Use the Ground Collective Terminal Block
Schutzleiter-Sammelklemme
benutzen
Use PE Collective Block
Nullleiter-Sammelklemme
benutzen!
Use Neutral Conductor
Collective Block
ground-common terminal block
2.2.4 Power supply
The power supply to the controller must be carried out via an external power
switch (last step!) and the supply voltage must be 100 … 240V~ (50 … 60 Hz). Flex-
ible cables must be attached to the housing with the enclosed strain relief and the
corresponding screws or be run into the controller housing in a cable conduit or
trunking.
+
OK / Set
-
!
GND
S1
S2
S3
S4
S5
S7
S6
S8
CS10
Sensors
N
LN
semiconductor relay
Netz / Mains
100 ...
50-60 Hz
240 V~
L'
R7-A
R7-M
R7-R
floating relay
R3
R2
R1
T4A
Bus
VBus
S9
S10
R6
R5
R4
1 (1) A (100 ... 240) V~
4 (1) A (100 ... 240) V~
R1-R6
R7
imp
DIn
DeltaSol®Pool
Vor Öffnen Gerät spannungslos
schalten!
Isolate mains before removing
clamp-cover!
Masse-Sammelklemme benutzen
Use the Ground Collective Terminal Block
Schutzleiter-Sammelklemme
benutzen
Use PE Collective Block
Nullleiter-Sammelklemme
benutzen!
Use Neutral Conductor
Collective Block
protective conductor PE
(common terminal block)
neutral conductor N
(common terminal block)
conductor L

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3 Basic system
Sensor allocation
S1 S2 S3 S4 S5 S6 S7 S8 CS10 S9 S10 Imp Din
T-absorber T-pool T-flow T-outd. T-return
(WMZ)
irradia-
tion
flow
rate
release
filter system
switch-extra filter runtime
Abbreviations sensors
sensor description
T-absorber absorber temperature
T-pool swimming pool temperature
T-flow flow temperature
T-outd. outdoor temperature
T-return return temperature
irradiation solar irradiation
flow rate flow rate
Relay allocation
R1 R2 R3 R4 R5 R6 R7
filter
pump
pump (P2)
backup heating
signal
relay
operating
relay
valve (V1)
open
(solar pump)
valve (V1)
closed
demand
backup heating
potential-free
Abbreviations - relays
relay description
R1 filter pump
R2 pump (P2) afterheating
R3 signal relay
R4 operation
R5 valve (V1) open (solar pump)
R6 valve (V1) closed
R7 backup heating demand potential-free
filter
heating
heat.

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4 Operation and function
4.1 Buttons for adjustment
1
3
2
(-) backwards forwards (+)
SET / OK
(selection / adjustment mode)
control lamp
The controller is operated via the 3 push buttons below the display. The for-
ward-button (1) is used for scrolling forward through the menu or to increase the
adjustment values.The backward-button (2) is similarly used for scrolling backwards
and reducing values. Button 3 is used for selection of the menu lines and for con-
firmation.
• Briefly press button 3 in order to get to the main menu
• Select the requested menu using buttons 1 and 2.
• Briefly press button 3, the selected submenu is then shown on the display. By
selecting the menu line “back”, the display returns to the former menu level.
• Press buttons 1, 2 and 3 to scroll until the choosen menu line is reached.
• Briefly press button 3 in the respective menu line to modify adjustment values,
adjust the requested value by pressing the buttons 1 and 2 (for large intervals,
keep the button pressed).
• Briefly press button 3 in order to finish the adjustment.
• To save the change, answer the security inquiry “Save?” by choosing “yes” or
“no” (buttons 1 and 2) and confirm with button 3.
When button 3 is pressed for 2 seconds, the display changes back to the
main menu.
4.2 Control lamp
The controller is equipped with a red-/green control lamp.The following control
and system status are signaled:
• green: automatic operation
• red flashing: malfunction of the system
• green flashing: manual mode
4.3 Menu structure
Mainmenu
1. Status
2. WMZ
3. Balances
4. Manualoperation
5. Adj.values
6. Usercode
7. Expert
The clear-text display shows a 4-line part of the selected menu.
Adjustment and control of the controller are carried out via the menu.When the con-
troller is commissioned,the display level is in the status menu.In the first line of each
submenu you will find the option“back”,by means of which it is possible to get to the
former menu level.In the following diagrams you will find the complete menu contents;
since some of the menu points depend on the system, option or message, in some
cases not all of the shown text lines are indicated.
status is shown on the display in the initial state.A selection can be made between
7 submenus.
Note:
The choice of adjustment values and options depends on different func-
tions and the user code. Some only appear in the display if they are availa-
ble for the adjusted system parameters.

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4.4 User code
1. Expert Code 0077
All menus and adjustment values are shown and all values can be altered.
Note:
After the menu point “user code” has been chosen, enter the user code!
If you do not enter the expert user code, the expert menu will not be displayed.
4.5 Menu overview
5 Commissioning
1
3
2
(-) backwards forwards (+)
SET / OK
(selection / adjustment mode)
control lamp
Adjust date and time in the Statusmenu.
6 Functions and options
Maximum pool temperature
Adj.values/Pool max.
adjustment range: 10.0 … 40.0 °C
factory setting: 30.0 °C
Adjust the maximum pool temperature, in °C.
When the adjusted swimming pool temperature is reached, the solar system
switches off.The circulation function will not be suppressed.
Switch-on difference
Adj.values/DT on
adjustment range: 3.5 … 20.0 K
factory setting: 5.0 K
Adjust the switch-on difference for the solar circuit, in Kelvin.
Switch-off difference
Adj.values/DT off
adjustment range: 0.5 … 19.5 K
factory setting: 3.0 K
Adjust the switch-off difference, in Kelvin. The switch-off difference must be by at
least 0.5 K smaller than the switch-on difference DTon.
Main menu
Status
WMZ
Balance values
Manual operation
Adj. values
User code
Expert Adjust. values
back
Poolmax.
DT on
DT off
Min.on
Min.off
Filtre min.
WMZ
back
WMZ1
WMZ module
Options
Expert
back
Adj. values
Options
Sensors
Language
Options
back
Flow max.
CS on
After heat.
AH sol. opt.
Col. Sec.
Col. Min.
Signal relay
Operat. relay
Circulation
Pool cool.
Extra circ.
Ext. on/off
Pump monitor
Reset

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Minimum runtime
Adj.values/Min. on
adjustment range: 1 … 10 min
factory setting: 2 min
Adjust the minimum runtime, in minutes.
Period of time during which the system has to run at least after the switch-on
condition has been fulfilled.The minimum switch-on will not be interrupted by the
swimming pool maximum temperature limitation.
Minimum break time
Adj.values/Min. off
adjustment range: 1 … 10 min
factory setting: 2 min
Adjust the minimum break time, in minutes.
Period of time during which the system has to stand still at least after the switch-off
condition has been fulfilled.
Minimum filter runtime
Adj.values/Circ. min.
adjustment range: 0 … 16 h
factory setting: 5 h
Adjust the minimum runtime of the filter pump, in hours.
The pump will be switched on every day for this period of time.This adjustment
value is variable and has to be passed through until the reference point (07:00 p.m.).
Example: When the filter runtime is adjusted to 5 hours, the filter pump has to
start at 02:00 p.m. and continuously run until 07:00. p.m.
The minimum filter runtime will also be maintained in the case of a sensor fault.
Switch-on delay
Expert/Adj.values/t-DTon
adjustment range: 0 … 300 s
factory setting: 20 s
Adjust the DTon time.
The switch-on condition has to be fulfilled for this period of time for solar loading
to start.
Flow maximum limitation
Expert/Options/Flowmax.
and adjust:
Expert/Adj.values/T-FLmax.
adjustment range: 30 … 90 °C
factory setting: 40 °C
Expert/Adj.values/DT-FLsec.
adjustment range: 0.2 … 10.0 K
factory setting: 2.0 K
Adjust the maximum limitation of the flow.
If this function is activated, solar loading is stopped when the maximum flow tem-
perature has been exceeded.The pool will be loaded again, if the flow temperature
falls by DT flowmax. below the maximum flow temperature.
The adjustable minimum difference between switch-on temperature and switch-off
temperture (hysteresis) avoids that the controller switches on and off again at too
low temperature differences.
Manual operation
Manualoperation/All relays
or:
Manualoperation/Relay 1etc
Each relay can be set into on-/off-/or automatic mode. During normal operation
the relay is in automatic mode.
CS
Expert/Options/CSon
and adjust:
Expert/Adj.values/CS on
adjustment range: 100 … 700 W/qm
factory setting: 300 W/qm
The pool will be loaded if the adjusted irradiation threshold (CS-Bypass) at the
irradiation sensor is exceeded or if there is a temperature difference caused by
high absorber temperatures.“CS on” can be activated; the irradiation threshold is
adjustable (100-700 W/m²).

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Energy metering
WMZ/Options/WMZ
selection:
WMZ “Yes” or “No”
Heat quantitiy measurement is possible with the difference between flow and re-
turn temperature, and with the flow rate indicated by the flowmeter.
If “WMZ” is selected, flow temperature, return temperature, flow rate and heat
quantity will be displayed.
WMZ/WMZ module“Yes” or “No”
It is possible to use an additionalWMZ module. Flow temperature, return tempera-
ture, flow rate and heat quantity will also be displayed.
WMZ/WMZ1/Expert
WMZ/WMZ1/Expert/Sen.f low
adjust to “3”
WMZ/WMZ1/Expert/Sen.return
adjuste.g. to “5”
If you select the “Expert” submenu, you can further choose between:
- Sensor flow/return: here you can re-allocate the sensors, if you do not use the
sensors which have already been pre-allocated.
Energy metering with and without flowmeter
WMZ/WMZ1/Expert/Flowmeter
selection “Yes”
If a flowmeter is used (“Yes”), a pulser is used for measuring the flow rate.
WMZ/WMZ1/Expert/Vol/puls.
adjustment range: 0,5 … 100,0 l
factory setting: 1,0 l
- Adjust volume/pulse (in l)
WMZ/WMZ1/Expert/Flowmeter.
selection “No”
WMZ/WMZ1/Expert/Relay
When no flowmeter has been selected (“No”), a flow rate value has to be entered
as well as the relay which is to be used for the heat quantity measurement.
Antifreeze type
WMZ/WMZ1/Expert/Antifreezetype
adjust e.g. to “1”
• Antifreeze type:
0 for water;
1 for propylene glycol;
2 for ethylene glycol;
3 for Tyfocor LS®
Adjusting the antifreeze concentration
WMZ/WMZ1/Expert/Antifreeze
adjustment range: 20 … 70 Vol %
factory setting: 40 %
Adjust the ratio of the water/glycol mixture.
Backup heating
Expert/Options/Afterheat.
and adjust to:
Expert/Adj.values/AH on
adjustment range: 10.0 … 39.7 °C
factory setting: 24.0 °C
Expert/Adj.values/AH off
adjustment range: 24.3 … 40.0 °C
factory setting: 24.5 °C
When the temperature falls below the minimum temperature (AH on), backup
heating is switched on and heats the pool until it reaches the desired temperature
(AH off).
The value “AH on” has to be by 0.3 K smaller then the value “AH off”.
Backup heating optimisation
Expert/Options/AHsol. opt.
and adjust:
Expert/Adj.values/AH Sol.on
adjustment range: 2.0 … 20.0 K
factory setting: 2.0 K
Expert/Adj.values/AH Sol.off
adjustment range:1.0 … 19.7 K
factory setting: 1.5 K
Expert/Adj.values/DTAH. Solar
adjustment range: 0.3 … 20.0 K
factory setting: 1.0 K
The function starts when the pool is being loaded. Solar loading means that pool
loading is only carried out for energy supply and not for cooling purposes etc.
Backup heating is suppressed when the temperature difference between flow and
pool (AH solar on) is reached. If the temperature difference falls below the val-
ue “AH solar off”, the optimisation function switches off.The adjustable minimum
difference between switch-on temperature and switch-off temperture (hysteresis)
avoids that the controller switches on and off again at too low temperature differ-
ences.

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Circulation function
Expert/Options/Circulation
and adjust:
Expert/Adj.values/Circ. time
adjustment range: 1 … 10 min
factory setting: 1 min
When the solar thermal system has been off for 1 hour, it is switched on for 1… 10
minutes (the water of the swimming pool circulates through the pipes; this allows
the pool temperature to be detected during system standstill). If the flow emergen-
cy shutdown is active, the circualtion function is suppressed.
Adjust the circulation runtime, in minutes.
Expert/Adj. values/Circ.start
factory setting: 07:00
Expert/Adj.values/Circ. stop
factory setting: 19:00
Beginning and end of circulation (clock time).
Absorber emergency shutdown
Expert/Options/Abs.max.
and adjust to:
Tcol.sec.
adjustment range: 60 … 160 °C
factory setting: 130 °C
Absorber emergency shutdown temperature, adjustable between 60 and 160°C.
If the adjusted temperature threshold (Tcol. sec.) is exceeded, the pool will no
longer be loaded by the absorber.
DTcol. sec.
adjustment range: 2 … 50 K
factory setting: 10 K
The adjustable minimum difference between switch-on temperature and switch-off
temperture (hysteresis) avoids that the controller switches on and off again at too
low temperature differences.
Absorber minimum limitation
This function makes sure that solar loading will start only if the absorber tempera-
ture reaches the adjusted value.
Expert/Options/Abs.min.
and adjust:
Expert/Adj.values/TColmin
adjustment range: -25 … +90 °C
factory setting: 10 °C
Expert/Adj.values/DT Colmin
adjustment range: 0.3 … 10.0 K
factory setting: 5.0 K
The adjustable minimum difference between switch-on temperature and switch-off
temperture (hysteresis) avoids that the controller switches on and off again at too
low temperature differences.
Pool cooling function
Expert/Options/Poolcool.
and adjust:
Expert/Adj.values/DT-Cool.
adjustment range: 0.5 … 10.0 K
factory setting: 2.0 K
If the maximum pool temperature is exceeded by the adjusted value (DT-Cool), heat
is diverted, provided that the absorber is by at least DTCool on colder than the
pool. Cooling is switched off when the value DTCool Off is reached.
Expert/Adj.values/ DTCoolon
adjustment range: 1.8 … 10.0 K
factory setting: 3.0 K
Expert/Adj.values/ DTCooloff
adjustment range: 0.3 … 9.7 K
factory setting: 1.5 K
The adjustable minimum difference between switch-on temperature and switch-off
temperture (hysteresis) avoids that the controller switches on and off again at too
low temperature differences.
Filter pump monitoring
Expert/Options/Pumpmonitor
selection “Yes” or “No”
When flowmeter is used and when the the filter pump is switched on, this option
monitors whether there is a flow rate in the solar circuit. If the controller does not
receive any pulse after 2 minutes, the filter pump will be switched-off and an error
message will be generated.

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Extra filter runtime
Expert/Options/Extracirc.
and adjust:
Expert/Adj.values/Extra circ.
adjustment range: 1 … 20 h
factory setting: 2 h
This option is used for switching on an extra runtime of the filter pump (in h) if
necessary (e.g. in the case of polluted pool water).
As soon as a contact is detected at the Din input, the filter pump starts and remains
switched-on for the adjusted period of time (extra runtime). The filter minimum
runtime will not be influenced by this function.
External release
Expert/Options/Ext.on/off
The external release function is used for releasing the pump for solar loading (e.g.
for preventing the controller from switching on the pump during pump mainte-
nance.) The Din input must be closed to deblock the controller (solar loading,
afterheating).
Sensors:
Expert/Sensors
Adjust the sensor type for the solar irradiation sensor (A to E).
Expert/Sensors/CS-type
Expert/Sensors/CSadjust
Expert/Sensors/CSoffset
Expert/Sensors/Sensor1 etc.
Adjust the sensor offset.
An offset (-5K … +5K, in 0.1 K steps) can be allocated to each sensor in order to
match the sensors with each other.
Operating relay:
Expert/Options/Operat.relay
selection:“Yes” or “No”.
The operating relay option can be selected. If the operating relay is selected (“Yes”),
it is energised when the pool is being loaded.
Reset:
Expert/Options/Reset
selection:“Yes” or “No”.
The reset option can be selected.When the reset option is selected (“Yes”), the
controller settings are set back to the factory settings.
Language:
Expert/Language/English
Language choice: German, English, French, Castellano, Italiano.
7 Messages
Sensor fault
!Sensor faulty
>Absorber
In the case of a sensor fault, an error message is generated:
Sensor defective.
Furthermore, the defective sensor will be recognised (absorber sensor, pool sensor
or flow temperature sensor).
Signal relay (error message)
Expert/Options/Signalrelay
!Sensor faulty
!Pump
!RTC
!EEPROM
This function is switched on (option WMZ), when the controller detects a fault. In
this case, the signal relay is energized (e.g. for signal lights).
These errors are:
• sensor defective
• pump defective
• real-time-clock (RTC) defective
• storage module (EEPROM) defective
Please note that a message caused by one of the plausibility controls does not
activate the relay.

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Messages The following states can be displayed:
display description
EverythingOK normal operation of the system, no malfunction
Controlleroff controller is switched off
>Contr. ext.off controller has been switched off by the operator
!Pumpfaulty! pump is defective
!Sensorfaulty sensor is defective
>Absorber identification of the defective sensor
>Pool see above.
>Flow see above
WMZoff WMZ (heat quantity measurement) is deactivated
!Sensorfaulty sensor is defective
>Flow identification of the defective sensor
>Return see above
!EEPROM EEPROM defective
!RTC RTC defective
Solaron solar loading is active
Solaroff solar loading is switched off
Min. on minimum runtime is active
Min. off minimum break time is active
SolarCS on CS irradiation sensor option is active
SolarPool max. maximum swimming pool temperature has been
reached
SolarFlow max. flow emergency shutdown is active
SolarCooling cooling is active
Circ.on filter pump is switched on
Circ.off filter pump is switched off
Circ.min. on filter pump minimum runtime is activated
Circulation circulation option is activated
Circ.time indication of the filter pump runtime
AHon backup heating option is activated
AHoff backup heating option is deactivated
Afterheat.on backup heating is active
Afterheat.off backup heating is not active
Afterheat.Solar backup heating is active during solar loading
TAbsor. display of absorber temperature
display description
Tpool display of pool temperature
Tflow display of flow temperature
Toutd. display of outdoor temperature
Intens. display of irradiation intensity
Relays display of the individual relay status
Sensors display of the temperatures at each sensor
Time
Date
Version1.00
8 Balance values
Balance values
The values shown on the left can be balanced.
Balance/Poolmax
Balance/Colmax
Balance/Flowmax
Balance/B-rel1
Balance/B-rel2
Balance/B-rel3
Balance/B-rel4
Balance/B-rel5
Balance/B-rel6
Balance/B-rel7
Balance/Oper.days
Operating hours of the individual relays.

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The defective sensor (swimming pool sensor, flow temperature sensor, absorber
sensor) is indicated on the display.The solar thermal system will be switched off or
not put into operation.
WARNING! Electric shock!
Upon opening the housing, live parts are exposed.
ÎAlways disconnect the controller from power supply
before opening the housing!
In the case of a malfunction, a message is shown on the display of the controller.
control lamp
fuse
Control lamp off
Check the power supply. Is it disconnected?
no
The fuse of the controller could be
blown. It can be replaced after the
front cover has been removed (spare
fuse is enclosed in the fuse holder).
yes
Check the supply line and recon-
nect it.
Operating control lamp flashes red.The symbol ☍and the ⚠are shown.
Sensor fault. An error code instead of a temperature is shown on the sensor
display channel.
Disconnected Pt1000 temperature sensors can be checked with an ohmmeter.
In the following table, the resistance values corresponding to different tempera-
tures are listed.
888.8
Cable is broken. Check the cable.
- 88.8
Short-circuit. Check the cable.
9 Troubleshooting
Resistance values of the
Pt1000 sensors
°C Ω°C Ω
-10 961 55 1213
-5 980 60 1232
0 1000 65 1252
5 1019 70 1271
10 1039 75 1290
15 1058 80 1309
20 1078 85 1328
25 1097 90 1347
30 1117 95 1366
35 1136 100 1385
40 1155 105 1404
45 1175 110 1423
50 1194 115 1442

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10 Accessories
10.1 Sensors and measuring instruments
Temperature sensors
The product range includes high-precision platinum temperature sensors, flatscrew
sensors, outdoor temperature sensors, indoor temperature sensors, cylindrical clip-
on sensors, also as complete sensors with immersion sleeve.
Overvoltage protection device
In order to avoid overvoltage damage at collector sensors (e.g. caused by local
lightning storms), we recommend the overvoltage protection RESOL SP10.
10.2 VBus® accessories
Smart Display SD3/ Large Display GA3
The RESOL Smart Display is designed for simple connection to RESOL controllers
with RESOL VBus®. It is used for visualizing data issued by the controller: collector
temperature, tank temperature and energy yield of the solar thermal system. The
use of high-efficiency LEDs and filter glass assures a high optical brilliance and good
readability.An additional power supply is not required. One module is required per
controller.
The RESOL GA3 is a completely mounted large display module for visualization
of collector- and tank temperatures as well as the heat quantity yield of the solar
system via one 6-digit and two 4-digit 7-segment-displays.An easy connection to all
controllers with RESOL VBus®is possible.The front plate is made of antireflective
filterglass and is printed with a light-resistant UV-lacquering.The universal RESOL
VBus®allows the parallel connection of 8 large displays as well as additional VBus®
modules.

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AM1 Alarm module
The AM1 Alarm module is designed to signal system failures. It is to be connected
to the VBus®of the controller and issues an optical signal via the red LED if a fail-
ure has occurred.The AM1 also has a dry contact relay output, which can e. g. be
connected to a building management system (BMS).Thus, a collective error message
can be issued in the case of a system failure. Depending on the controller and the
sensors connected, different fault conditions can be signaled, e. g. sensor failures,
excess or negative system pressure as well as errors in the flow rate, such as a dry
run of the pump.
The AM1 Alarm module ensures that occurring failures can be immediately rec-
ognised and repaired, even if the system and the controller are difficult to access
or located in a remote place.Thus, the reliability and the stable yield of the system
are ensured.
DL2 Datalogger
This additional module enables the acquisition and storage of large amounts of data
(such as measuring and balance values of the solar system) over a long period of
time. The DL2 can be configured and read-out with a standard internet browser
via its integrated Web interface. For transmission of the data stored in the internal
memory of the DL2 to a PC, an SD card can be used.The DL2 is appropriate for all
controllers with RESOL VBus®. It can be connected directly to a PC or router for
remote access and thus enables comfortable system monitoring for yield monitor-
ing or for diagnostics of faults.
10.3 Interface adapters
VBus®/ USB interface adapters
The new VBus®/ USB interface adapter is the interface between the controller and
a personal computer.With its standard mini-USB port it enables a fast transmission
of system data for processing, visualizing and archiving via the VBus®. A full version
of the RESOL ServiceCenter software is included.

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Distributed by: RESOL – Elektronische Regelungen GmbH
Heiskampstraße 10
45527 Hattingen / Germany
Tel.: [phone] / 96 48 - 0
Fax: [phone] / 96 48 - 755
www.resol.com
[email protected]
Important note
The texts and drawings of this manual are correct to the best of our knowledge.
As faults can never be excluded, please note:
Your own calculations and plans, under consideration of the current standards and
directions should only be basis for your projects.We do not offer a guarantee for
the completeness of the drawings and texts of this manual - they only represent
some examples.They can only be used at your own risk. No liability is assumed for
incorrect, incomplete or false information and / or the resulting damages.
Note
The design and the specifications can be changed without notice.
The illustrations may differ from the original product.
Imprint
This mounting- and operation manual including all parts is copyrighted. Anoth-
er use outside the copyright requires the approval of RESOL – Elektronische
Regelungen GmbH. This especially applies for copies, translations, micro films
and the storage into electronic systems.
© RESOL – Elektronische Regelungen GmbH