Grant Solar GS222020X Installation And Servicing Instructions

UK - DOC 0107 Rev 1.0 - November 2015

Grant Solar

SD3X Solar Controller (East/West Systems) Product code: GS222020X

Installation and Servicing Instructions

A. - Safety instructions 4

A.1. - EC declaration of conformity 4 A.2. - General instructions 4 A.3. - Explanation of symbols 4 A.4. - Changes to the unit 5 A.5. - Warranty and liability 5

B. - Description of controller 6

B.1. - Specications 6

B.2. - Temperature resistance table for Pt1000 sensors 7 B.3. - About the controller 7 B.4. - Scope of supply 7 B.5. - Disposal and pollutants 7

C. - Installation 8

C.1. - Electrical connection 8 C.2. - Wall instalion 9 C.3. - Installing the temperature sensors 11

D. - Terminal connection 12

D.1. - Terminal connection diagram 12 D.2. - Hydraulic variants / systems 13

E. - Operation 17

E.1. - Display and input 17 E.2. - Commissioning help 18 E.3. - Free commissioning 18 E.4. - Menu sequence and menu structure 19

1. - Measurement values 20

2. - Statistics 20

2.1. - Operating hours 20

2.2. - Heat output 20

2.3. - Graphic overview 20

2.4. - Message log 20

2.5. - Reset/clear 20

3. - Operating modes 21

3.1. - Automatic 21

3.2. - Manual 21

3.3. - Off 21

4. - Settings 22

4.1. - Tmin S (X) 22

4.2. - Tmin S5 22

4.3. - Priority S (X) 22

4.4. - ∆ T Solar S (X) 22

4.5. - Tmax S (X) 22

4.6. - Priority S3 22

4.7. - ∆ T Solar S3 23

4.8. - Tmax S3 23

4.9. - Priority S4 23

4.10. - ∆ T Solar S4 23

4.11. - Tmax S4 23

4.12. - Tmax S3 23

4.13. - Tmax SB 23

4.15. - T-priority 23

4.14. - Tmax SB WT 23

4.16. - Loading time 23

4.17. - Increase 24

5. - Protections / Protective functions 24

5.1. - System protection 24

5.2. - Collector protection 24

5.4. - Recooling 25

5.5. - Frost Protection 25

5.6. - Seizing protection 25

5.7. - Collector alarm 25

6. - Special functions 26

6.1. - Program selection 26

6.2. - Pump menu 26

6.2.1. - Type of pump 26

6.2.2. - Pump 26

6.3. - Speed control R1 / R2 27

6.3.1. - Modes 27

6.3.2. - Purging time 27

6.3.3. - Sweep time 27

6.3.4. - max. speed 28

6.3.5. - min. speed 28

6.3.6. - Setpoint 28

6.6. - Speed control R1 / R2 28

6.4. - Speed control R1 / R2 28

6.6.1. - Solar bypass 29

6.6.2. - Thermostat 30

6.6.3. - Thermostat 2 31

6.6.4. - Cooling 32

6.6.5. - Return ow increase 33

6.6.6. - Collector eld cooling 34

6.6.7. - Anti Legionella 35

6.6.8. - Heat transfer 36

6.6.9. - Difference 37

6.6.10. - Solid fuel boiler 38

6.6.11. - Error message 38

6.6.12. - Pressure monitor 39

6.6.13. - Booster pump 39

6.6.14. - Parallel operation R (X) 40

6.6.15. - Always on 40

6.6.16. - Heating circuit 40

6.7. - Speed control R1 / R2 40

6.8. - Speed control R1 / R2 40

6.9. - Heat quantity 41

6.9.1. - Constant ow 41

6.9.2. - VFS (X) 42

6.10. - Pressure monitor 42

6.10.1. - Pressure monitor 42

6.11. - Sensor calibration 43

6.12. - Commissioning 43

6.13. - Factory settings 43

6.14. - Start aid function 43

6.15. - Time and date 44

6.16. - Daylight saving time 44

6.17. - Sleep mode 44

6.18. - Temperature unit 44

6.19. - Network 44

6.19.1. - Access Control 44

6.19.2. - Ethernet 44

7. - Menu lock 45

8. - Service values 45

9. - Languages 45

Z.1. Malfunctions with error messages 46 Z.2 Replacing the fuse 47 Z.3 Maintenance 48

J. - Appendix 49

J.19.1. - Pump 49 J.19.2. - Output Signal 49 J.19.3. - PWM off 49 J.19.4. - PWM on 49 J.19.5. - PWM Max 49

J.17.3 - 0-10V off 49 J.17.4 - 0-10V on 49 J.17.5 - 0-10V Max 49

J.19.6. - Speed when „On“ 49

J.19.7. - Show signal 49

Table of content

Version 1

3 mechanical relays (2 on/off, 1 changeover contact)

1 PWM / 0-10V for high ef cency pumps

5 PT1000 temperature sensor inputs

Version 2

2 mechanical relays (1 on/off, 1 change-over contact) 1 electronic relay for speed control of standard pumps

1 PWM / 0-10V for high ef cency pumps

5 PT1000 temperature sensor inputs

Version 3

3 mechanical relays (2 on/off, 1 changeover contact)

2 PWM / 0-10V for high ef cency pumps 6 PT1000 temperature sensor inputs 2 VFS / RPS direct sensor inputs

Version 4

1 mechanical relay (change-over contact) 2 electronical relays for speed control of standard pumps

2 PWM / 0-10V for high ef cency pumps 6 temperature sensor inputs 2 VFS / RPS direct sensor inputs

This manual applies to the following hardware versions:

When you are unsure which version you have, check the type label on the side of the controller.

If the version is not readable here, open the controller’s “Service values” menu. The version is

shown in the fi rst line of the service values.

Safety instructions

By af xing the CE mark to the unit the manufacturer declares that the LTDC conforms to the following relevant safety regulations:

- EC low voltage directive 2006/95/EC

- EC electromagnetic compatibility directive 2004/108/EC

Conformity has been veri ed and the corresponding documentation and the EC declaration of conformity are kept on  le by the manufacturer.

A.1. - EC declaration of conformity

These installation and operating instructions contain basic instructions and important information regarding safety, installation, commissioning, maintenance and the optimal use of the unit. Therefore these instructions must be read completely and understood by the installation technician/specialist and by the system user before installation, commissioning and operation of the unit.

The valid accident prevention regulations, VDE regulations, the regulations of the local power utility, the applicable DIN-EN standards and the installation and operating instruction of the additional system

components must also be observed. The controller does not under any circumstances replace any safety devices to be provided by the customer! Installation, electrical connection, commissioning and maintenance of the unit may only be carried out by specialists who possess the appropriate training.

For the user: Make sure that the specialist gives you detailed information on the function and operation of the controller. Always keep these instructions in the vicinity of the controller.

A.2. - General instructions

Danger

Caution

A.3. - Explanation of symbols

Failure to observe these instructions can result in danger to life from electric voltage.

Danger

Failure to observe these instructions can result in serious damage to health such as scalding, or even life-threatening injuries.

Caution

Failure to observe these instructions can result in destruction of the unit or the system, or damage to the environment.

Information which is especially important for the function and optimal use of the unit and the system.

A.4. - Changes to the unit

• Changes, additions to or conversion of the unit are not permiddled without the written permission from the manufacturer

• It is likewise forbidden to install additional components that have not been tested together with the unit

• If it becomes clear that safe operation of the unit is no longer possible, for example because of

damage to the housing, then turn the controller off immediately

• Any parts of the unit or accessories that are not in perfect condition must be exchanged immediately

• Use only original spare parts and accessories from the manufacturer.

• Markings made on the unit at the factory must not be altered, removed or made illegible

• Only the settings actually described in these instructions may be made on the controller

Changes to the unit can compromise the safety and function of the unit or the entire system.

Danger

Description of controller

The controller has been manufactured and tested with regard to high quality and safety requirements. The unit is subject to the statutory guarantee period of two years from the date of sale. The warranty and liability shall not include, however, any injury to persons or material damage that is attributable to one or more of the following causes:

- Failure to observe these installation and operating instructions

- Improper installation, commissioning, maintenance and operation

- Improperly executed repairs

- Unauthorised structural changes to the unit

- Installation of additional components that have not been tested together with the unit

- Any damage resulting from continued use of the unit despite an obvious defect

- Failure to use original spare parts and accessories

- Use of the device for other than its intended purpose

- Operation above or below the limit values listed in the speci cations

- Force majeure

A.5. - Warranty and liability

Description of controller

Electrical specifications:

Mains voltage 100 - 240VAC Mains frequency 50 - 60Hz

Power consumption 0,5W - 2,5W

Internal fuse T2A / 250V slow blow

Protection category IP40 Protection class II Overvoltage Category II Degree of Pollution Category II

Ve r s .1 Vers. 2 Vers.3 Vers.4

mechanical relay 460VA for AC1 / 460W for AC3 3 (R1-R3) 2 (R2-R3) 3 (R1-R3) 1 (R3)

electronic relay min.5W...max.120W for AC3 - 1 (R1) - 2(R1-R2)

0-10V output, tolerance 10%, 10 k Ω load or PWM output freq. 1 kHz, level 10 V

1 1 2 2

PT1000 sensor input measuring range -40°C to 300°C 5 5 6 6

VFS / RPS inputs

0°C-100°C (-25°C /120°C short term)

- 2 2

1 l/min - 12 l/min (VFS1-12) 2 l/min - 40 l/min (VFS2-40) 5 l/min - 100 l/min (VFS5-100) 10 l/min - 200 l/min (VFS10-200)

0- 0,6 bar

0-1 bar

0-1,6 bar

0-2,5 bar 0-4 bar

0- 6 bar

0-10 bar

Network connections

CAN Bus

Permissible cable length of sensors and appliances:

Collector and outdoor sensor <30m other PT1000 sensors <10m

VFS/RPS Sensoren <3m CAN <3m PWM / 0...10V <3m

electronic relay <3m mechanichal relay <10m

Real Time Clock RTC with 24 hour power reserve

Permissible ambient conditions:

Ambient temperature for controller operation 0°C...40°C

for transport/storage 0°C...60°C

Air humidity

for controller operation max. 85% rel. humidity at 25°C

for transport/storage no moisture condensation permiddled

Other specifications and dimensions

Housing design 3-part, ABS plastic Installation methods Wall installation, optionally panel installation

Overall dimensions 163mm x 110mm x 52mm

Aperture installation

dimensions 157mm x 106mm x 31mm Display Fully graphical display, 128 x 64 dots Light diode Multicolor red/green Operation 4 entry keys

B.1. - Specifications

Description of controller

B.2. - Temperature resistance table for Pt1000 sensors

°C 0 10 20 30 40 50 60 70 80 90 100

Ω 1000 1039 1077 1116 1155 1194 1232 1270 1308 1347 1385

The Temperature Difference Controller LTDC facilitates ef cient use and function control of your solar or heating system. The device is impressive most of all for its functionality and simple, almost self-explanatory

operation. For each step in the input process the individual entry keys are assigned to appropriate functions

and explained. The controller menu contains headwords for the measured values and settings, as well as help texts or clearly-structured graphics. The LTDC can be used as a solar controller for the various system variants illustrated and explained under

„D.2. - Hydraulic variants / systems“ on page 13.

Important characteristics of the LTDC :

- Depiction of graphics and texts in a lighted display

- Simple viewing of the current measurement values

- Analysis and monitoring of the system by means of statistical graphics,etc.

- Individual con guration of special functions

- Extensive setting menus with explanations

- Menu block can be activated to prevent unintentional setting changes

- Resetting to previously selected values or factory settings

- A wide range of additional functions are available. The controller is available in 4 different versions. See page 3.

B.3. - About the controller

- TDC

- 3 screws 3,5x35mm and 3 plugs 6mm for wall installation

- 12 strain relief clips with 24 screws, replacement fuse 1x T2A / 250V

- Installation and instructions manual LTDC Optionally contained depending on design/order:

- PT 1000 temperature sensors and immersion sleeves Additionally available:

- Pt1000 temperature sensor, immersion sleeves, overvoltage protection,

- Data Logger with Ethernet connection

B.4. - Scope of supply

B.5. - Disposal and pollutants

The unit conforms to the European RoHS directive 2002/95/EC for the restriction of the use of certain

hazardous substances in electrical and electronic equipment.

Caution

The unit must not under any circumstances be disposed of with ordinary household refuse.

Dispose of the unit only at appropriate collection points or ship it back to the seller or

manufacturer.

Installation

Controller and VFS sensor have to have the same ground potential. The VFS sensor uses a functional earth connector (PELV). The PE-connector of the controller has to be connected

to the pipe system near the sensor.

Caution

C.1. - Electrical connection

Danger

Before working on the unit, switch off the power supply and secure it against being switched on again! Check for the absence of power!

Electrical connections may only be made by a specialist and in compliance with the applicable regulations. Do not use the controller if the housing shows visible damage.

Caution

Low-voltage cables such as temperature sensor cables must be routed separately from

mains voltage cables. Feed temperature sensor cables only into the left-hand side of the unit, and mains voltage cables only into the right-hand side.

Caution

The customer must provide an all-pole disconnecting device, e.g. a heating emergency switch.

Caution

The cables being connected to the unit must not be stripped by more than 55mm, and the

cable jacket must reach into the housing just to the other side of the strain relief.

Installation

Install the controller only in dry areas and under the ambient conditions described under B.1

“Speci cations”.

1. Unscrew cover screw completely

2. Carefully pull upper part of housing from lower part.

3. Set upper part of housing aside, being sure not to touch the electronics when doing so.

4. Hold the lower part of the housing up to the

selected position and mark the 3 mounting holes. Make sure that the wall surface is as even as possible

so that the housing does not become distorted when it is screwed on.

5. Using a drill and size 6 bit, drill 3 holes at the points marked on the wall and push in the plugs.

6. Insert the upper screw and screw it in slightly.

7. Fit the upper part of the housing and insert the other two screws.

8. Align the housing and tighten the three screws.

Achtung

C.2. - Wall instalion

Controller must be inaccessible from the rear.

Caution

C.2.1.

C.2.2.

1. Select necessary program/hydraulics

(s. „D.2. - Hydraulic variants / systems“ on

page 13)

2. Strip cables by

55mmmax., insert,  t

the strain relief devices, strip the last 8-9mm of

the wires (Fig. „C.2.3.“)

3. Open the terminals using a suitable screwdriver (Fig.

„C.2.4.“) and make

electrical connections on the controller

4. Re t terminal

connection cover and fasten screw.

5. Switch on mains voltage and place controller in operation.

C.2.3.

C.2.4.

Installation

Instructions for clamps:

1. Insert screw driver into the upper

hole. Push the lock clamp inside

down.

Keep the screw driver in this position.

2. Insert cable into the lower opening.

3. Remove screw driver. The clamp will

lock the cable.

The temperature sensor cables must be routed separately from mains voltage cables, and must not, for example, be routed in the same cable duct!

Caution

The controller operates with Pt1000 temperature sensors which are accurate to the degree, thus ensuring optimal control of system functions.

Caution

Position the sensor precisely in the area to be measured!

Only use immersion, pipe-mounted or  at-mounted sensor suitable for the speci c area

of application with the appropriate permissible temperature range.

Sensor cables for S1 and S5 can be extended to a maximum of 30m using a cable with a

cross-section of at least 0.75mm². Sensor cables for S2 to S4 and S6 can be extended to a maximum of 10m using a cable with a cross-section of at least 0.75mm². Make sure that

there is no contact resistance!

Connect the VFS sensors with the matching jacks.

To prevent damage to the Direct Sensors it is highly recommended to install them in to the return.

When installing the Vortex Flow Sensors (VFS), observe the correct  ow direction!

C.3. - Installing the temperature sensors

Installation

max. 12V

Caution

mains side

100 -240VAC

Danger

D.1. - Terminal connection diagram

On the circuit board:

LTDC Version V3+V4: VFS1 Grundfos Direct Sensor VFS2 Grundfos Direct Sensor

CAN1 CAN Bus CAN2 CAN Bus

VFS2 VFS1

CAN CAN

S4 S3 S2 S1

PELV

R3I

R3 R2 R1 L N

Low voltage max. 12VAC/DC

Terminal: Connection for: S1 T emperature sensor 1 S2 T emperature sensor 2 S3 T emperature sensor 3 S4 Temperature sensor 4 S5 T emperature sensor 5

V1 0-10V / PWM signal output e.g. for control of High Ef ciency

pumps

LTDC Version V3+V4: V2 0-10V / PWM signal output e.g. for control of High Ef ciency

pumps

S6 Temperature sensor 6 + 12V power supply

Connection of sensor earth to the grey lower

terminal block.

The power supply of HE pumps with 0-10V

/ PWM pumps can be connected to the

corresponding relay (V1 -> R1, R2 -> V2), since

the relays are switched on and off with the signal.

Mains voltage 100-240VAC 50-60Hz

Terminal: Connection for: R1 Relay 1 R2 Relay 2 R3 Relay 3 (normally open) R3I Relay 3 (normally closed)

L Netz Außenleiter L N Netz Neutralleiter N

The neutral conductors are connected to the lower blue terminals

The PE protective conductor must be

connected to the PE metal terminal block!

InstallationInstallation

D.2. - Hydraulic variants / systems

Solar with storage Solar with swimming pool

Solid fuel boiler with storage

Solar with heat exchanger (sensor in secondary circuit) and pool

Solar with thermostat (auxiliary heating) Solar with two-zone storage

Storage transfer

Universal DeltaT

Solar with heating circuit

Thermostat

Shutoff valve

Heating circuit

R1( V1)

ΔT

R2(V2)

R1( V1)

Caution

The following illustrations should be viewed only as schematic diagrams showing the respective hydraulic systems, and do not claim to be complete. The controller does not replace safety

devices under any circumstances. Depending on the speci c application, additional system components and safety components may be mandatory, such as check valves, non-return

valves, safety temperature liwithers, scalding protectors, etc., and must therefore be provided.

InstallationInstallation

Hydraulic variants / systems

Solar with swimming pool and heat exchanger

Solar with heat exchanger

Solar with bypass

Solar with 2 collector surfaces and switching valve

Solar with 2 collector surfaces and 2 pumps

Solar with 2 storages and 2 pumps

Solar with 2 storages and switching valve

Solar with thermostat and switching valve

Solar with cooling 1 (collector cooling)

Solar with storage transfer

Solar with storage and solid-fuel boiler

Solar with cooling 2 (collector cooling)

❄

R2(V2)

R1( V1)

R2(V2)

R1( V1)

R2(V2)

20 21

R2(V2)

InstallationInstallation

Hydraulic variants / systems

Solar with heat exchanger 2 zones

Solar with heat exchanger 2 storages

Solar with 2 collector surfaces, 2 storages and 2 valves

Solar with 2 collector surfaces, 2 storages and 2 pumps

Solar with swimming pool, storage, heat exchanger and valve

Solar with 3 storages and 3 pumps

Solar with storage transfer and thermostat

2x Solar

Solar with heating circuit and thermostat

Solar with storage and solid-fuel boiler and S4

Solar with cooling 3 (collector cooling)

R1( V1)

R2(V2)

R1( V1)

R2(V2)

R1( V1)

R2(V2)

R1( V1)

R2(V2)

(V2)

R1( V1)

(V1)

R1( V1)

R2(V2)

Installation Installation

Hydraulic variants / systems

Solid-fuel boiler

Collector

Sensor

Radiator

Pump Valve

3-way valve R2 on

Heat exchanger

Fan

Storage

Auxiliary heating

Flow heater

Swimming pool

Solar with 3 storages and 3 valves Solar with heat exchanger +

Solar with heat exchanger and 2 zones storage

Solar with heat exchanger and 2 storages

Solar with 2 collector surfaces, heat exchanger storage and 3 pumps

Solar with 2 collector surfaces, heat exchanger storage, valve and 2 pumps

R1( V1)

R2(V2)

R1( V1)

R2(V2)

R1( V1)

R2(V2)

R1( V1)

R2(V2)

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Grant Solar GS222020X Installation And Servicing Instructions

Specifications and Main Features

Frequently Asked Questions

User Manual