Resol DeltaSol CS/2 User manual

*11204303* 11204303
Thank you for buying this RESOL product.
Read this manual carefully to get the best perfomance from this unit.
Please keep this manual carefully.
DeltaSol®CS/2
www.resol.com
Manual
en
Mounting
Connection
Application examples
Operation
Troubleshooting

2
en
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 la-
belled 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.
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 envi-
ronmentally sound disposal of the devices.
Subject to technical change. Errors excepted.
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!
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.
© 20140819_11204303_DeltaSol_CS2.monen.indd

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Contents
1 Installation ........................................................................................... 5
1.1 Mounting ........................................................................................................................5
1.2 Electrical connection ...................................................................................................6
1.3 VFD Grundfos Direct Sensor™...............................................................................7
1.4 PWM output..................................................................................................................7
1.5 Data communication / Bus ..........................................................................................7
1.6 Terminal allocation.......................................................................................................8
2 Operation and function .................................................................... 11
2.1 Push buttons............................................................................................................... 11
2.2 System-Monitoring-Display ..................................................................................... 11
2.3 Flashing codes ............................................................................................................ 12
3 Commissioning.................................................................................. 13
4 Channel overview .............................................................................. 15
4.1 Display channels......................................................................................................... 15
4.2 Adjustment channels ................................................................................................ 17
5 Troubleshooting................................................................................. 27
5.1 Various......................................................................................................................... 28
6 Accessories ........................................................................................ 30

4
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Overview
• System-Monitoring-Display
• Up to 4 Pt1000 temperature sensors
• Semiconductor relays for pump speed control
• 1 input for aVFD Grundfos Direct Sensor™
• Heat quantity measurement
• VBus®
• Function control
• Control of the system by ServiceCenter
software possible
• User-friendly operation
• Housing with outstanding design
• Extra-low power consumption
• HE pump control
• Drainback option
Technical data
Inputs: 4 Pt1000 temperature sensors, 1 VFD Grundfos Direct Sensor™
Outputs: 1 semiconductor relays, 1 PWM output
PWM frequency: 512 Hz
PWM voltage: 10,5 V
Switching capacity: 1 (1) A 240 V~ (semiconductor relay)
Total switching capacity: 1 A 240 V~
Power supply: 100 … 240 V~ (50 … 60 Hz)
Supply connection: type Y attachment
Power consumption: < 1 W (standby)
Mode of operation: type 1.C.Y action
Rated impulse voltage: 2.5 kV
Data interface: RESOL VBus®
VBus®current supply: 35 mA
Functions:
function control, operating hours counter, speed control, drainback option and
heat quantity measurement
Housing: plastic, PC-ABS and PMMA
Mounting: wall mounting, mounting into patch panels is possible
Indication / Display:
System-Monitoring-Display for visualisation of systems, 16-segment and 7-segment
display, 8 symbols for indication of system status
Operation: 3 push buttons at the front
Ingress protection: IP 20 / EN 60529
Protection class: I
Ambient temperature: 0 … 40 °C [32 … 104 °F]
Pollution degree: 2
Dimensions: 172 x 110 x 46 mm
110
30
62
172
46
110
30
62
172
46 110
30
62
172
46

5
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1 Installation
1.1 Mounting
The unit must only be installed
• in a dry interior location
• in a non-hazardous location
• away from electromagnetic fields
The controller must additionally be supplied from a double-pole switch with con-
tact gap of at least 3 mm. Route sensor cables and power supply cables separately.
ÎUnscrew the cross-head screw from the cover and remove it along with the
cover from the housing
ÎMark the upper fastening point on the wall and drill
ÎFasten 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 (centers 130 mm)
ÎDrill and insert the lower wall plug
ÎFasten the housing to the wall with lower fastening screw and tighten
ÎComplete wiring connections in accordance with terminal allocations, see
chap. 2.2 “Electrical connection”
ÎPlace the cover back onto the housing
ÎFasten the cover by means of the cross-head screw
WARNING! Electric shock!
Opening the housing will expose live parts!
ÎSwitch off power supply and disconnect the device
from power supply before opening the housing!
display
cable conduits with strain relief
cover push
button
fuse 2A
130
upper fastening
lower fastening

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1.2 Electrical connection
WARNING! 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:
The minimum pump speed must be set to 100% when auxiliary relays or
valves are connected.
Note:
The mains connection must be carried out with the common ground
of the building to which the pipework of the solar thermal system is
connected.
1 (1) A 240 V~
LN
R1
N
2019
18
171615
14131212
IP 20
T2A
100 ... 240 V~
50-60 Hz
Temp. Sensor Pt1000
S2S1 S3 S4 VBus
PWM
VFD
Made in Germany
DeltaSol®CS/2
345678910
PE and load terminals
Connecting the device to the mains supply must always be the last step of the
installation!
The power supply to the controller must be carried out via an external power
switch (last step!).The supply voltage must be 100…240V~ (50 … 60 Hz). Flexible
cables must be attached to the housing with the enclosed strain relief and the
corresponding screws.
The controller is equipped with a semiconductor relay, to which a load such as a
pump, a valve etc. can be connected:
Relay 1
18 = conductor R1
17 = neutral conductor N
13 = protective conductor
The mains supply is to be carried out at the terminals:
19 = neutral conductor N
20 = conductor L
12 = protective conductor ⏚
The temperature sensors (S1 up to S4) are to be connected to the following
terminals with either polarity:
1 / 2 = Sensor 1 (e.g. Sensor collector)
3 / 4 = Sensor 2 (e.g. Sensor store)
5 / 6 = Sensor 3 (e.g. Sensor store top)
7 / 8 = Sensor 4 (e.g. Sensor return)
All Pt1000 temperature sensors are equipped with a platinum measuring element
in their tip.The electrical resistance of the measuring element changes in relation
to the temperature (see table in chap. 5).
The difference between FKP and FRP type sensors only lies in the cable insu-
lation material.The insulation material of FKP type sensor cables resists a higher
temperature, so that FKP type sensors should be used as collector sensors. FRP
type sensors are best used as reference sensors in stores or pipes.
1 (1)
A 240 V~
LN
R1
N
2019
18
17161514131212
IP 20
T2A
100 ... 240 V~
50-60 Hz
Temp. Sensor Pt1000
S2S1 S3 S4 VBus
PWM
VFD
Made in Germany
DeltaSol®CS/2
345678910
Sensor terminals S1 … S4
fuse
VBus®power supply
terminals
load terminals
sensor terminals PE terminals
1 (1) A 240 V~
LN
R1
N
2019
18
171615
14131212
IP 20
T2A
100 ... 240 V~
50-60 Hz
Temp. Sensor Pt1000
S2S1 S3 S4 VBus
PWM
VFD
Made in Germany
DeltaSol®CS/2
345678910

7
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1.3 VFD Grundfos Direct Sensor™
The controller is equipped with 1 input for a digitalVFD Grundfos Direct Sensor™
for measuring the flow rate and the temperature. Connection is made at the VFD
terminal (bottom left).
1.4 PWM output
The speed of a HE pump is adjusted through a PWM signal. In addition to con-
nection to the relay, the pump must be connected to the PWM output of the
controller.
Power is supplied to the HE pump by switching the relay on or off.
The two left-hand pins of the connection marked “PWM” are the control output
for a pump with PWM control input.The two right-hand pins are inactive.
1 = PWM output 1, control signal
2 = PWM output 1, GND
1 (1) A 240 V~
LN
R1
N
2019
18
171615
14131212
IP 20
T2A
100 ... 240 V~
50-60 Hz
Temp. Sensor Pt1000
S2S1 S3 S4 VBus
PWM
VFD
Made in Germany
DeltaSol®CS/2
345678910
1.5 Data communication / Bus
1 (1) A 240 V~
LN
R1
N
2019
18
171615
14131212
IP 20
T2A
100 ... 240 V~
50-60 Hz
Temp. Sensor Pt1000
S2S1 S3 S4 VBus
PWM
VFD
Made in Germany
DeltaSol®CS/2
345678910
VBus®
connection terminals
The controller is equipped with a RESOL VBus®for data transfer with and energy
supply to external modules.The connection is carried out at the terminals marked
“VBus” (either polarity). One or more RESOL VBus®modules can be connected
via this data bus, such as
• GA3 Large Display, SD3 Smart Display
• DL3 Datalogger
• DL2 Datalogger
• VBus®/USB or VBus®/LAN interface adapter
• AM1 Alarm Module
• WMZ calorimeter module
By means of a Datalogger or an interface adapter, the controller can be connected
to a PC or a computer network. Different solutions for visualisation and remote
parameterisation are availabe on the RESOL website www.resol.com.

8
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1.6 Terminal allocation
910
VBus
PWM
VFD
S1
S2
S4 / VFD / TR
S4 / VFD / TFL
R1 S3 /TSTT
S1
S3
S2
R1
exemplary
Drainback system layout
System layout 1
The controller calculates the temperature difference between collector sensor
S1 and store sensor S2. If the difference is larger than or identical to the adjusted
switch-on temperature difference (DT O), the solar pump will be operated by relay
1, and the store will be loaded until the switch-off temperature difference (DTF)
or the maximum store temperature (S MX) is reached.
Sensors S3 and S4 can optionally be connected for measurement purposes. S3 can
optionally be used as reference sensor for the store emergency shutdown option
(OSEM).
If heat quantity measurement (OHQM) is activated, S4 andVFD are to be connect-
ed as flow and return sensors respectively.

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Display Channels
Channel Description Terminal Page
INIT x* ODB initialisation active - 15
FLL x* ODB filling time active - 15
STAB x* ODB stabilisation in progress - 15
COL x Temperature collector S1 15
TST x Temperature store S2 15
S3 x Temperature sensor 3 S3 15
TSTT x* Temperatur store at the top S3 15
S4 x Temperature sensor 4 S4 15
TFL x* Temperature flow sensor S1 / S4 /VFD 15
TR x* Temperature return sensor S4 /VFD 15
VFD x* Temperature Grundfos Direct Sensor™ VFD 15
L/h x* Flow rate Grundfos Direct Sensor™ VFD 16
n % x Pump speed R1 R1 16
hP x Operating hours R1 R1 17
kWh x* Heat quantity kWh - 16
MWh x* Heat quantity MWh - 16
TIME x Time - 16
Adjustment Channels
Channel Description Factory setting Page
DT O x Switch-on temperature difference 6.0 K [12.0 °Ra] 17
DT F x Switch-off temperature difference 4.0 K [8.0 °Ra] 17
DT S x Nominal temperature difference 10.0 K [20.0 °Ra] 17
PUM x Pump control type PSOL 18
RIS x Rise control R1 2 K [4 °Ra] 18
nMX x Maximum pump speed 100 % 18
nMN x Minimum pump speed 30 % 18
S MX x Maximum store temperature 60 °C [140 °F] 19
OSEM x Option store emergency shutdown OFF 19
EM x Emergency temperature collector 130 °C [270 °F] 19
Emergency temperature collector if ODB is activated: 95 °C [200 °F] 19
OCC x Option collector cooling OFF 20
CMX x* Maximum collector temperature 110 °C [230 °F] 20
OSYC x Option system cooling OFF 20
DTCO x* Cooling switch-on temperature difference 20.0 K [40.0 °Ra] 20
DTCF x* Cooling switch-off temperature difference 15.0 K [30.0 °Ra] 20
OSTC x Option store cooling OFF 20

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Legend:
Symbol Specification
x Channel is available
x* Channel is available if the corresponding option is activated.
s Channel is specifically available in this system layout
Adjustment Channels
Channel Description Factory setting Page
OHOL x* Option holiday cooling OFF 20
THOL x* Holiday cooling temperature 40 °C [110 °F] 22
OCN x Option minimum limitation OFF 22
CMN x* Minimum collector temperature 10 °C [50 °F] 22
OCF x Option antifreeze OFF 22
CFR x* Antifreeze temperature 4.0 °C [40.0 °F] 22
GFD x Grundfos Direct Sensor™ OFF <?>
OHQM x Option heat quantity measurement OFF 24
SEN x* VFD allocation 2 24
FMAX x* Maximum flow 6.0 l/min 24
MEDT x* Antifreeze type 1 24
MED% x* Antifreeze concentration (only if MEDT = propylene or ethylene) 45 % 24
ODB x Drainback option OFF 25
tDTO x* ODB switch-on condition - time period 60 s 25
tFLL x* ODB filling time 5.0 min 25
tSTB x* ODB stabilisation time 2.0 min 25
MAN x Manual operation R1 Auto 25
LANG x Language En 25
UNIT x Temperature unit °C 25
RESE x Reset - back to factory settings 25
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