Shuangri Electron SR258 Manuel utilisateur

Operation Manual of the Intelligent

Controller SR258

for Split Pressurized Solar Hot Water System

Please read the instruction carefully before operation!

Manual of SR258 intelligent controller

Contents

1. Safety information.....................................................................................................................3

1.1 Installation and commissioning............................................................................................3

1.2 About this manual...................................................................................................................3

1.3 Liability waiver.........................................................................................................................3

1.4 Important information.............................................................................................................4

1.5 Signal description...................................................................................................................4

1.6 Button and HMI description..................................................................................................4

2. Overview ....................................................................................................................................5

2.1 Technical data.........................................................................................................................5

2.2 Delivery list ..............................................................................................................................6

3. Installation..................................................................................................................................6

3.1 Mounting controller.................................................................................................................6

3.2 Wiring connection...................................................................................................................6

3.3 Terminal connection...............................................................................................................7

3.4 Connection with high efficiency pump ................................................................................8

4. System description (Standard solar system with 1 tank, 1 collector field)....................10

5. Function’s parameters and options .....................................................................................11

5.1 Overview of menu structure................................................................................................11

5.2 Menu operation description................................................................................................11

5.3 Value checking......................................................................................................................12

6. Functions operation and parameters setting (for user)....................................................12

6.1 CLK Time setup....................................................................................................................12

6.2 THET Timing heating ...........................................................................................................13

6.3 CIRC DHW circulation pump controlled by temperature or by time............................16

7. Function operation and parameter setup (engineer)........................................................20

7.1PWD Password......................................................................................................................20

7.2 LOAD tank heating...............................................................................................................21

7.3 COL Collector function.........................................................................................................23

7.4 PUMP Pump R1 control mode...........................................................................................29

7.5 COOL Cooling function........................................................................................................31

7.6 AUX Auxiliary function..........................................................................................................35

7.7 MAN Manual operation........................................................................................................39

Manual of SR258 intelligent controller

7.8 BLPR Blocking protection...................................................................................................40

7.9 OTDI Thermal Disinfection function..................................................................................41

7.10 FS Flow rate monitoring and pump dry running protection.........................................42

7.11 UNIT C-F Switch.................................................................................................................43

7.12 RET Reset...........................................................................................................................44

7.13 PASS Password setup ......................................................................................................44

7.14M.H Manual heating............................................................................................................45

7.15 Holiday function..................................................................................................................45

8. Protection function..................................................................................................................46

8.1 Memory function during power failure...............................................................................46

8.2 Screen protection .................................................................................................................46

8.3 Trouble checking...................................................................................................................46

9. Quality Guarantee...................................................................................................................47

10. Accessories ...........................................................................................................................48

Manual of SR258 intelligent controller

1. Safety information

1.1 Installation and commissioning

When laying wires, please ensure that no damage occurs to any of the constructional

fire safety measures presented in the building.

The controller must not be installed in rooms where easily inflammable gas mixtures are

present or may occur.

The permissible environmental conditions can’t be exceeded at the site of installation.

Before connecting the device, make sure that the energy supply matches the

specifications that the controller requires.

All devices connected to the controller must be conformed to the technical specifications

of the controller.

All operations on an open controller are only to be conducted cleared from the power

supply. All safety regulations for working on the power supply are valid.

Connecting and /or all operations that require opening the collector (e.g. changing the

fuse) are only conducted by specialists.

1.2 About this manual

This manual describes the mounting, functions and operation of a solar controller used for a

solar hot water system, for mounting of other devices of a completed solar hot water system

like solar collector, pump station and storage, please is sure to observe the appropriate

installation instructions provided by each manufacturer. Mounting, wire connecting,

commissioning and maintenance of this controller may only be performed by the trained

professional person; the professional person should be familiar with this manual and follow

the instructions contained herein.

1.3 Liability waiver

The manufacturer can’t monitor the compliance with these instructions or the circumstances

and methods used for installation, operation, utilization and maintenance of this controller.

Improper installation can cause damages to material and person. This is the reason why we

do not take over the responsibility and liability for losses, damages or cost that might arise

due to improper installation, operation or wrong utilization and maintenance or that occurs in

some connection with the aforementioned. Moreover we do not take over liability for patent

infringements or infringements –occurring in connection with the use of this controller on the

third parties rights. The manufacturer preserves the right to put changes to product, technical

data or installation and operation instructions without prior notice. As soon as it becomes

Manual of SR258 intelligent controller

evident that safe operation is no longer possible (e.g. visible damage). Please immediate

take the device out of operation. Note: ensure that the device can’t be accidentally placed

into operation.

1.4 Important information

We have carefully checked the text and pictures of this manual and provided the best of our

knowledge and ideas, however inevitable errors maybe exist. Please note that we cannot

guarantee that this manual is given in the integrity of image and text, incorrect, incomplete

and erroneous information and the resulting damage we do not take responsibility.

1.5 Signal description

Safety indication: Safety indications in the text are marked with a warning triangle.

They indicate measures which can lead to injury of person or safety risks.

►Operation steps: small triangle “►”is used to indicate operation step.

Note: Contains important information about operation or functions.

1.6 Button and HMI description

Controller is operated with the 6 buttons on the right side of the screen

“ " holiday button

“M.H” button: manual heating

“SET” button: confirm / selection

“▲” up button: increase the value

“▼” down button: reduce the value

“ESC" button return/ exit : return to previous menu

Manual of SR258 intelligent controller

Status description

Code

Lighting

Blinking

Exceed the maximum temperature of storage

SMX

Running of storage emergency shutdown

function

Running of collector emergency shutdown

function

CEM

Collector Cooling

OCCO

Tank Cooling

OSTC

System Cooling

OSYC

Start of anti-freezing function

OCFR

Running of anti-freezing function

OCFR

Collector minimum temperature

OCMI

Slow blink

2. Overview

2.1 Technical data

Inputs: 1 * PT1000 temperature sensor input

4 * NTC10K, B=3950 temperature sensor input

1 * FRT rotary vane type electronic flow meter

Outputs: 2* Electromagnetic relay(R2/R3), maximum current 2A

1* Semiconductor relay(R1), maximum current 1A

1* Electromagnetic relay(HR), maximum current 10A

Note:

a).110VAC main supply: max.power 750W

b).230VAC main supply: max.power 1500W

1 * PWM variable frequency output (on/off switchable, 0-10V)

Functions: operating hours counter, tube collector function, thermostat function, pump

speed control, external heat exchange, adjustable system parameters and optional

functions (menu-driven), balance and diagnostics

Power supply: 100…240V ~(50…60Hz)

Rated impulse voltage: 2.5KV

Housing：Plastic ABS

Mounting：Wall mounting

Operation: 6 push buttons at the front cover

Protection type: IP41

Manual of SR258 intelligent controller

Ambient temperature: 0 ... 40 °C

Dimensions: 187*128*46mm

Note: there are 4 inputs for NTC10K, B=3950 temperature sensor, but only 2 sensors

are included in standard delivery list, the other two should be purchased separately by

customer if necessary.

2.2 Delivery list

1 * SR258 controller

1 * Accessory bag

1 * User manual

1 * PT1000 temperature sensor (φ6*50mm,cable length 1.5meter)

2 * NTC10K temperature sensor (φ6*50mm,cable length 3meter)

3. Installation

Note: The unit must only be located in the dry interior rooms. Please separate routing

of sensor wires and mains wires. Make sure the controller as well as the system is not

exposed to strong electromagnetic fields.

3.1 Mounting controller

Follow the below steps to mount the controller on the

wall.

Unscrew the crosshead screw from the cover and

remove it along with the cover from the housing.

Mark the upper fastening point ①on the wall.

Drill and fasten the enclosed wall plug and screw

leaving the head protruding.

Hang the housing from the upper fastening point

and mark the lower fastening points ②.

Drill and insert lower wall plugs.

Fasten the housing to the wall with the lower fastening screw and tighten.

Carry out the electrical wiring in accordance with the terminal allocation

Put the cover on the housing. Attach with the fastening screw.

3.2 Wiring connection

According to the way of installation, wire can be connected from hole A on the bottom plate

or from hole B, using a suitable tool (like knife) to cut the plastic ofA.

Manual of SR258 intelligent controller

Note: wires must be fastened by fixing clamps on the position C.

3.3 Terminal connection

Note: before opening the housing! Always disconnect the controller from power

supply and obey the local electrical supply regulation.

Input ports

T1: PT1000 temperature sensor, for measuring the temperature of collector and thermal

energy calculation.

T2 ~T5: NTC10K, B=3950 temperature sensor, for measuring temperature of tank and

pipe.

PWM: Signal ports for high efficiency pump, detailed connection see below

FRT: For rotary vane type electronic flowmeter

Advice regarding the installation of temperature sensors:

Only original factory equipped Pt1000 temperature sensors are approved for using with

the controller, it is equipped with 1.5m silicon cable and suitable for all weather

conditions, the cable is temperature resistant up to 280oC, connect the temperature

sensors to the corresponding terminals with either polarity.

Only original factory equipped NTC10K,B=3950 temperature sensors are approved for

using with tank and pipe, it is equipped with 3m PVC cable, and the cable is

temperature resistant up to 105oC, connect the temperature sensors to the

corresponding terminals with either polarity.

Manual of SR258 intelligent controller

All sensor cables carry low voltage, and to avoid inductive effects, must not be laid close

to 230 volt or 400 volt cables (minimum separation of 100mm).

If external inductive effects are existed, e.g. from heavy current cables, overhead train

cables, transformer substations, radio and television devices, amateur radio stations,

microwave devices etc., then the cables to the sensors must be adequately shielded.

Sensor cables may be extended to a maximum length of ca. 100 meter, when cable’s

length is up to 50m, and then 0.75mm2cable should be used. When cable’s length is up

to 100m, and then 1.5mm2cables should be used.

Output ports

FU1：2A/250V fuse

Input Ports L, N: for power connection, L: live wire, N: zero wire, protective wire

Output R1: Semiconductor relays (SCR), designed for pump speed control, Max.

Current: 1A

Output R2: Electromagnetic relays, designed for on/off control of pump or 3-ways

electromagnetic valve, Max. Current: 1A

Output R3: Electromagnetic relays, designed for on/off control of pump or 3-ways

electromagnetic valve, Max. Current: 2A

Output HR: Electromagnetic relays, designed for on/off control of after

heating/thermostat function, Max. Current: 10A

3.4 Connection with high efficiency pump

Connecting the signal wire from the high-efficiency pump

Manual of SR258 intelligent controller

Signal wire 1 from the high-efficiency pump is connected to GND port of controller

Signal wire 2 from the high-efficiency pump is connected to PWM port of controller

Signal wire 3 from the high-efficiency pump is not connected to the controller

Some pumps connections are available as above, for example:

Wilo Yonos PARA ST15/7.0 PWM2 M

Grundfos UPM3 SOLAR 15-75 130 CZA

Note:

1. High-efficiency pump with 0-10V signal only has 2 signal wires, connected to the

corresponding port GND, PWM1 of controller.

2. Blue wire not always represent for “GND”and brown wire not always represent for

“PWM”.

”PWM”from pump must be match for “PWM”from controller.

”GND”from pump must be match for “GND”from controller.

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