Resol DeltaSol A User manual

*48000190* 48000190
Thank you for buying this RESOL product.
Please read this manual carefully to get the best performance from this unit.
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DeltaSol® A
Mounting
Connection
Operation
Troubleshooting
Differential temperature controller for solar, heating & air conditioning systems
Manual for the
specialised craftsman
www.resol.com
Manual
en

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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.
Disposal
• Dispose of the packaging in an environmentally sound manner.
• At the end of its working life, the product must not be disposed of as urban waste.
Old appliances must be disposed of by an authorised body in an environmentally
sound manner. Upon request we will take back your old appliances bought fromus
and guarantee an environmentally sound disposal of the devices
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 differential temperature controller is designed for electronically controlling
solar, heating and air conditioning systems in compliance with the technical data
specied 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 elds can impair the function of the controller.
ÎMake sure the controller as well as the system are not exposed to
strong electromagnetic elds.
Subject to technical change. Errors excepted.
© 20180703_48000190_DeltaSol_A.monen_neu.indd

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Differential temperature controller DeltaSol®A
The DeltaSol®A controller is the simplest solution for all differential controls.
It is equipped with an adjustable temperature difference and an antifreeze function
which can be activated / deactivated with a jumper.
The enclosed silicone sealing cord guarantees a protection against dripping water.
130
45
Drill hole positions
112 mm
Contents
1 Overview .............................................................................................. 4
2 Installation ........................................................................................... 4
2.1 Mounting ........................................................................................................................4
2.2 Electrical connection ...................................................................................................6
3 Operation and function ...................................................................... 6
3.1 Flashing codes ...............................................................................................................6
3.2 Jumper and potentiometer.........................................................................................6
3.3 Switch-on temperature difference............................................................................7
3.4 Antifreeze function ......................................................................................................7
4 Application examples.......................................................................... 7
4.1 Standard solar system with 1 store .........................................................................7
4.2 Heating circuit return preheating .............................................................................8
4.3 Heat exchange control................................................................................................8
5 Accessories .......................................................................................... 9
6 Troubleshooting................................................................................... 9

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1 Overview
• Adjustable temperature difference 2 …16 K, hysteresis 1.6 K
• Antifreeze function adjustable by jumper
• Protection against dripping water
Technical data
Inputs: 2 Pt1000 temperature sensors
Outputs: 1 electromechanical relay (changeover)
Switching capacity: 4 (1) A 240 V~ (electromechanical relay)
Total switching capacity: 4 A 240 V~
Power supply: 220 … 240 V~ (50 … 60 Hz)
Supply connection: type Y attachment
Standby: 1,35 W
Mode of operation: Type 1.B
Rated impulse voltage: 2.5 kV
Functions: antifreeze function
Housing: plastic, PC-ABS and PMMA
Mounting: wall mounting
Indication / Display: 1 operating control LED
Operation: 1 potentiometer and 1 jumper
Protection type: IP 20 / DIN EN 60529 (with IP 22 sealing)
Protection class: II
Ambient temperature: 0 … 40 °C
Degree of pollution: 2
Dimensions: Ø 139 mm, depth 45 mm
2 Installation
2.1 Mounting
WARNING! Electric shock!
Upon opening the housing, live parts are exposed!
ÎAlways disconnect the device from power supply
before opening the housing!
Note:
Strong electromagnetic elds can impair the function of the controller.
ÎMake sure the controller as well as the system are not exposed to
strong electromagnetic elds.
The unit must only be located in dry interior rooms.
The controller must additionally be supplied from a double pole switch with con-
tact gap of at least 3 mm.
Please pay attention to separate routing of sensor cables and power supply cables.

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In order to mount the device to the wall, carry out the following steps:
2.2
1
112mm
2
45
67
3
8
Fuse T4A
Mains connection
Relay (load)
Grounding terminal
(common terminal block)
Jumper
Antifreeze function
Potentiometer
Temperature limitation
Sensor 2
Sensor 1

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2.2 Electrical connection
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!
The controller is supplied with power via a mains cable.The power supply of the
device must be 220… 240 V~ (50 … 60 Hz).
The controller is equipped with 1 electromechanical relay to which a load such as
a pump, a valve, etc. can be connected.
Relay 1
7 = Normally open contact (RO)
8 = Normally closed contact (RC)
9 = Neutral conductor N
Grounding terminal (common terminal block)
The mains connection is at the terminals:
10 = Neutral conductor N
11 = Conductor L
Grounding terminal (common terminal block)
3 Operation and function
3.1 Flashing codes
The operating control LED indicates the current status of the controller.
Colour Permanent Flashing
Green Relay on Antifreeze function
3.2 Jumper and potentiometer
A
B
The jumper (A) can be used for activating or deactivating the antifreeze function.
With the potentiometer (B), the switch-on temperature difference can be adjusted
(in K).
Connect the temperature sensors (S1 and S2) to the following terminals with
either polarity:
1 / 2 = Sensor 1 (e. g. collector sensor)
3 / 4 = Sensor 2 (e. g. store sensor)

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The antifreeze function activates the loading circuit between
the collector and the store when the collector temperature
falls below +4 °C. This will protect the uid against freezing or
coagulating. If the temperature measured at S1 reaches +5 °C,
the pump will be switched off. If the antifreeze function is ac-
tive, the operating control LED ashes green.
4 Application examples
4.1 Standard solar system with 1 store
S1
RO
S2
⌯Use the grounding terminal!
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, the pump (R1) will be switched on and the store
will be loaded. If the difference falls by 1.6 K (non-adjustable hysteresis) below the
adjusted temperature difference, the pump will be switched off.
S1 = Collector sensor
S2 = Store sensor
RO = Solar pump
⌯
1
S1 S2
2 3 4 7
RO RC N N L
8 9 10 11
22 33
Mains
3.3 Switch-on temperature difference
Adjustment range: 2 … 16 K
Factory setting: 6 K
The controller calculates the temperature difference between
the temperature sensors S1 and S2. If the difference is larger
than or identical to the adjusted nominal value, the relay will
be switched on. The operating control LED ashes green. If the
temperature difference falls by 1.6 K (non-adjustable hyster-
esis) below the nominal value, the relay will be switched off.
3.4 Antifreeze function
Deactivated by default
Note
Since this function uses the limited heat quantity of the store, the anti-
freeze function should be used in regions with few days of temperatures
around the freezing point.

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⌯Use the grounding terminal! ⌯Use the grounding terminal!
4.2 Heating circuit return preheating
The controller calculates the temperature difference between store sensor S1 and
heating circuit return sensor S2. If the difference is larger than or identical to
the adjusted switch-on temperature difference, the controller switches the 3-port
valve. The heat of the store is used for increasing the return temperature of the
heating circuit. If the difference falls by 1.6 K (non-adjustable hysteresis) below the
adjusted temperature difference, the valve will be put into its initial position.
S1 = Store sensor
S2 = Heating circuit return sensor
RO = 3-port valve
S1
RO
S2
1
S1 S2
2 3 4 7
RO RC N N L
8 9 10 11
22 33
⌯
Mains
4.3 Heat exchange control
S2
S1
RO
When the temperature difference between sensor 1 (store 1) and sensor 2 (store
2) exceeds the adjusted value, the circulating pump will be activated. Heat will be
transferred from store 1 into store 2. If the difference falls by 1.6 K (non-adjustable
hysteresis) below the adjusted temperature difference, the pump will be switched off.
S1 = Store sensor 1
S2 = Store sensor 2
RO = Circulating pump
1
S1 S2
2 3 4 7
RO RC N N L
8 9 10 11
22 33
⌯
Mains

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Spare fuse (inside the cover)
In the case of an error, please check the following:
Check the supply line and recon-
nect it.
The fuse of the controller could be
blown.The fuse becomes accessible
when the cover is removed.The fuse
can then be replaced.
Check the power supply of the controller. Is it disconnected?
no yes
Resistance values of Pt1000 sensors
°C °F Ω
Pt1000
°C °F Ω
Pt1000
-10 14 961 55 131 1213
-5 23 980 60 140 1232
0 32 1000 65 149 1252
5 41 1019 70 158 1271
10 50 1039 75 167 1290
15 59 1058 80 176 1309
20 68 1078 85 185 1328
25 77 1097 90 194 1347
30 86 1117 95 203 1366
35 95 1136 100 212 1385
40 104 1155 105 221 1404
45 113 1175 110 230 1423
50 122 1194 115 239 1442
Note:
For answers to frequently asked questions (FAQ) see www.resol.com.
Disconnected temperature sensors can be checked with an ohmmeter. Please
check if the resistance values correspond with the table.
5 Accessories
SP10 Overvoltage protection device HR230 Auxiliary relay
6 Troubleshooting

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