Sun-Love SR528Q User manual

Operating Manual of
Wireless Controller SR528Q
for Split Pressurized Solar Hot Water System

Operation manual of SR528Q wireless controller
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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 remark.................................................................................................................4
1.5 Description of symbols.......................................................................................................4
1.6 Operation button ................................................................................................................. 4
2. Installation of controller........................................................................................................6
2.1 Display installation..............................................................................................................6
2.2 Controller installation..........................................................................................................7
2.3 Preparation before wire connection................................................................................. 7
2.4 Wire collocation................................................................................................................... 7
2.5 Wire connection...................................................................................................................8
3. Wireless connection............................................................................................................10
3.1 Code match between controller and display................................................................10
3.2 Application of wireless controller....................................................................................12
4. Debugging............................................................................................................................13
4.1 Time/week setup...............................................................................................................13
4.2 Menu structure...................................................................................................................14
4.3 Menu description...............................................................................................................15
4.4 System description...........................................................................................................16
5.Functions operation and parameters setup (user grade)..............................................17
5.1 Timing Heating...................................................................................................................17
5.2 Energy save mode............................................................................................................20
5.3 Temperature / time setting for DHW circulation pump................................................21
6. Functions operation and parameters setup (engineer grade).....................................24
6.1 Access main menu............................................................................................................24
6.2 Access submenu...............................................................................................................25
6.3 Temperature difference for solar circuit pump（DT O/DT F）..................................25
6.4 TEMP Temperature main menu......................................................................................27
6.4.1 EMOF Maximum switch-off temperature of collector (for collector emergency
close function)..........................................................................................................................27
6.4.2 EMON Maximum switch-on temperature of collector (for collector emergency

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close function)..........................................................................................................................28
6.4.3 CMX Maximum limited temperature of collector (collector cooling function) ......29
6.4.4 CMN Low temperature protection of collector..........................................................30
6.4.5 CFR frost protection temperature of collector ..........................................................30
6.4.6 SMX Maximum temperature of tank...........................................................................31
6.4.7 REC Cooling temperature of tank...............................................................................32
6.4.8 C＿F Switch between Celsius and Fahrenheit.........................................................33
6.5 FUN Auxiliary functions....................................................................................................33
6.5.1 DVWG Anti legionnaires' function...............................................................................34
6.5.2 CIRC DHW circulation pump on/off............................................................................34
6.5.3 COOL Tank cooling function........................................................................................34
6.5.4BYPR Bypass function (high temperature) ................................................................35
6.6 COMM Communication function menu.........................................................................36
6.6.1 ID Address ......................................................................................................................36
6.6.2 MAC Network address..................................................................................................37
6.6.3 FREQ Communication frequency...............................................................................37
6.6.4 RSSI Signal intensity ....................................................................................................37
6.7 HND Manual control.........................................................................................................37
6.8 PASS Password set..........................................................................................................39
6.9 LOAD Recovery to factory set........................................................................................39
6.10 “ON/OFF” Controller switch on/off button...................................................................40
6.11 Holiday function...............................................................................................................40
6.12 Manual heating................................................................................................................41
6.13 Temperature query function..........................................................................................41
7. Protection function..............................................................................................................42
7.1. Memory protection...........................................................................................................42
7.2 Screen protection..............................................................................................................42
8. Trouble shooting..................................................................................................................43
8.1 Trouble protection.............................................................................................................43
8.2 Trouble checking...............................................................................................................44
9. Quality Guarantee...............................................................................................................45
10. Technical specification .....................................................................................................46
11. Package list........................................................................................................................47
12. Device matched to this controller...................................................................................47

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1. Safety information
1.1 Installation and commissioning
When laying cables, 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 controller requires.
All devices connected to the controller must conform to the technical specifications of
the controller.
All operations on an open regulator 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 regulator (e.g. changing the
fuse) are only conducted by specialists.
1.2 About this manual
This manual describes the installation, functions and operation of a solar thermal controller.
When installing the remaining components e.g. the solar collectors, pump stations and the
water storage, it should be sure to observe the appropriate installation instructions provided
by each manufacturer. Only trained professional personnel may perform installation,
electrical connection, commissioning and maintenance of the device. The professional
personnel must be familiar with this manual and follow the instructions contained herein.
1.3 Liability waiver
The manufacturer cannot 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 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 third parties rights. The manufacturer preserves the right to put changes
to product, technical date or installation and operation instructions without prior notice. As

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soon as it becomes evident that safe operation is no longer possible (e.g. visible damage).
Please immediately take the device out of operation. Note: ensure that the device cannot
be accidentally placed into operation.
1.4 Important remark
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, they are just some
examples, and they apply only to our own system. Incorrect, incomplete and erroneous
information and the resulting damage we do not take responsibility.
1.5 Description of symbols
Safety instruction:
The safety instructions in the manual are marked with a warning triangle. They
indicate measures, which can lead to personal injury and safety risks.
Operation steps: small triangle “►”is used to indicate operation step.
Notes: Contains important information about operation or function.
1.6 Operation button

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Button
Button function description
ON/OFF
Controller switch on/off;Manually control DHW pump
Clock
Time setting
Manual
Manual starting heating button
Set
Setup parameters
▲
Parameters upwards adjust
▼
Parameters downwards adjust
Esc
Exit
Power Save
Power save mode starting button
Heating
Timing heating starting button
DHW
DHW timing circulation starting button
Holiday
Holiday mode
Match
Code match
Reset
Parameters reset

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2. Installation of controller
Controller can be only installed indoors, not installed in a dangerous and moist place and far
away from the electromagnetic field.
2.1 Display installation
►Determine the mounting site of display.
►Mount the base board on an 86 type wire connection box.
►Hang the display on the base board and rivet it with screw.
►Put the cover on the display
Demount the cover of display
►Unclench the bottom fix hook of display with a flat “-“screw driver,
►Upwards unclench the cover with another flat “-“screw driver,

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2.2 Controller installation
Controller can only be installed in an area having an adequate level of
protection.
Fix the base board of controller
►Determine the mounting site of controller.
►Fix the base board on the wall with plastic expand screw
►Hang the controller on the base board.
2.3 Preparation before wire connection
Open/Close the wire terminal cover
►Loosen the screw ①②, upwards move the terminal
cover and take off the cover
►Cover reset: downwards the cover
►Fix it with screw on position ①②。
2.4 Wire collocation
Switch-on power only when cover of the controller is closed and installer should ensure
the IP safety protection is not damaged during the installation process.
Depending on the type of installation, the cables may enter the controller through the rear

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hole of the case ④or the lower side hole of the case ⑤.
Cable enters from the rear hole④: Remove the plastic flaps ④from the rear side of the
case using an appropriate tool.
Cable enters from the below hole⑤: Cut the left and right plastic flaps using an
appropriate tool (e.g. knife) and break them out of the case.
Notes: the flexible wire must be fastened on the case using the clamps⑥provided.
2.5 Wire connection
Before open the wire connection terminal, please be sure to switch-off the
power and conform to the instructions of local power supply.
Terminal layout
Power connection ports
Input Ports: is for power connection, connect L, N wire correctly.
: is ground port.
FUSE:2A/250V
K0：Code match button of controller
Temperature sensor inputs
Input T1: For PT1000 temperature sensor, used to measure the temperature of

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collector
Input T2～T4: For NTC10K, B=3950 temperature sensor, used to measure the
temperature of tank or pipe
Advice regarding the installation of temperature sensors
Only original factory enclosed Pt1000 temperature sensors are approved for use with
the collector, it is equipped with 1.5meter silicon cable and suitable for all weather
conditions, the temperature sensor and cable are temperature resistant up to 280oC,
not necessary to distinguish the positive and negative polarity of the sensor connection.
Only original factory enclosed NTC10K, B=3950 temperature sensors are approved for
use with tank and pipe, it is equipped with 3.0meter PVC cable, and they are
temperature resistant up to 105oC, not necessary to distinguish the positive and
negative polarity of the sensor connection.
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 0.75mm2 cable should be used. When cable’s length is up
to 100m, and then 1.5mm2 cable should be used.
Outputs
Output (P1): Electromagnetic relay, for DHW circulation pump, Max. Switching current:
3.5A. P2 output port: normal status is open
Output (P2): Electromagnetic relay, for DHW circulation pump, Max. Switching current:
3.5A. P2 output port: normal status is open
Output (R1): Electromagnetic relay, for circulation pump or valve, Max. Switching
current: 3.5A. R1 output port: normal status is open
Output (H1): Electromagnetic relay, for back-up electrical heater , Max. Switching
current: 10A. H1 output port: normal status is open

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3. Wireless connection
Before power switched-on, connect the sensor on the input ports; connect pump or
valve on the output ports.
Power switched-on, first of all to match the code between controller and display, then to
set up time, password and relevant parameters of system.
Note：the display is powered on, but before it is matched with controller, E1
shows on the screen,
it means data is not synchronized, after successful code matching, controller
just enters a orderly operation status.
3.1 Code match between controller and display
►Open the connection terminal of controller; switch
on the power of controller and display.
►Press K0 button (on the right side of controller
terminal) for three seconds until the LED indicator light
(on the right side of controller) blinks (1 second 1
blink)
►then release K0 button, wait for match of display.
Note:
When there is only a display in the system, then
set the code “ID01” for this display.
When there are several displays in the system,
then set the start code “ID01” for the first display,
the code of every display should be different and
not repeated.
►Press “Match” button of display 1 for 3 seconds, “ID
01” blinks on the screen.
►Press “▲ ▼” button, adjust the address of display,
adjustable range is 01-08, maximum 8 displays can
be matched with this controller.(Code of the first
display must be set as “ID 01”,the second display
must be set as ”ID 02”,set like this, one by one)

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►Press “Match” button on the display, “SAVE” shows on the screen,
►Press “Match” button on the display, “WAIT - - -“shows on the screen, (waiting for the
connection between controller and display), when display automatically returns to the
normal operation screen, it indicates the success of code match.
If “WAIT- - - “shows on the screen always, it indicates the un-success of code match,
this display’s installation place is not suitable (distance to the controller may be too far),
remount the display in a suitable place.
When 2 or above 2 displays in the system
►Press the “Match” button of display 2 for 3 seconds, “ID 01” blinks on the screen.
►Then press “ ▲ ▼” button to adjust the ID address of display, adjustable range is
01-08, and set “ ID 02” for the second display.
►Press “Match” button on the display, “SAVE” shows on the screen, save the above
set.
►Press “Match” button on the display, “WAIT - - -“shows on the screen, (waiting for the
connection between controller and display), display automatically returns to the normal
operation screen in 6 seconds.
(According to the configured displays quantity, set the ID code and match the code for
every display one by one, and please note the ID code should not be repeated.)
After success code match for all displays,
►Press “KO” button for 3 seconds, the indicator light on the right side of controller
shines without blink (continuously shine).
►Then release “KO” button, code match finishing, controller enters the orderly
communication status.
Note：After the code match, you can press “▲ ▼” button to check the current
signal intensity (RSSI), if you encounter the problem like signal is too weak,
communication is unstable, lots of same frequency interfere signals occur
nearby, you can modify the communication frequency and select a ideal
frequency under the menu “COMM” (to modify the frequency must start from the
display with ID address of “ ID 01”), detailed steps see paragraph 6.7.3
(433M is an ideal communication frequency; do not change it at unnecessary
case).

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3.2 Application of wireless controller
Note: standard delivery package includes 1 controller and 1 display. Extra
displays should be ordered separately, 1 controller can be matched with
maximum 8 displays.

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4. Debugging
4.1 Time/week setup
►Press “Clock” button, display shows time on the screen, hour “00” blinks on the
screen.
►Press “ ▲ ▼” button to adjust the hour,
►Press “Clock” again, minute “00” blinks,
►Press “ ▲ ▼” button to adjust the minute,
►Then press “Clock” again, week “MO” blinks on the screen
►Press “▲ ▼” to adjust day of week,
►Press “Esc” button to exit the system setting, or waiting for 20 seconds to exit
automatically.
Code
Week
MO
Monday
TU
Tuesday
WE
Wednesday
TH
Thursday
FR
Friday
SA
Saturday
SU
Sunday

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4.2 Menu structure
Submenu:
Through submenu, user can set the parameter as desired value, please check it carefully.

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4.3 Menu description
Code
(Main menu)
Code
(Submenu)
Code
(Submenu)
Code description
DT O
Switch-on temperature difference
DT F
Switch-off temperature difference
TEMP
Temperature menu
EMOF
The maximum switch-off temperature of
collector
EMON
The maximum switch-on temperature of
collector
CMX
The maximum temperature of collector
(Collector cooling function)
CMN
Low temperature protection of collector
CFR
Frost protection temperature of collector
SMX
Maximum temperature of tank
REC
Cooling temperature of Tank
C-F
Switch between Celsius and Fahrenheit
FUN
Auxiliary functions
DVWG
Anti legionnaires' function
CIRC
DHW circulation pump on/off
COOL
Tank cooling function
BYPA
Bypass ( high temperature)
COMM
Communication function menu
ID
ID code of displays
MAC
Network address
FREQ
Communication frequency
RSSI
Signal intensity
HDN
Manual controlling
PASS
Password set
LOAD
Recovery to factory set

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4.4 System description
Note: storage temperature sensor T3 is an optional sensor, if this sensor is not installed on
the upper part of the storage, controller will adopt the temperature signal from sensor T2
installed on the bottom part of storage to control back-up heater or circuit pump.
1 collector array- 1tank -1 circuit pump-back-up heater
System description:
Controller compares the temperature between collector T1 and storage T2 ( bottom part), if
the temperature difference （DT）rises up to the preset switch-on (ΔT1)or is over it, circuit
pump P1 is triggered , and then storage is heated until DT drops to the switch-off DT or
when the storage temperature T3 rises up to its preset maximum temperature. Then circuit
pump P1 is ceased.
Back-up heating: (see details at paragraph 5.4)
Within the preset heating time section, if tank temperature (T3) drops to the switch-on
temperature of heating, then back-up heater H1 is triggered automatically, when tank
temperature T3 rises up to the preset switch-off temperature, then output H1 is closed.

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T1: Temperature sensor Pt1000 on collector
T2: Temperature sensor NTC10K on the bottom part of tank
T3: Temperature sensor NTC10K on the top part of tank (optional)
T4: Temperature sensor NTC10K on the DHW pipe (optional)
P1: Solar circuit pump
P2: DHW circuit pump
R1: High temperature bypass pump or valve (optional)
H1: Back-up heater
5.Functions operation and parameters setup (user grade)
5.1 Timing Heating
Description:
Electrical heater, gas boiler or oil boiler can be integrated into solar system used as back-up
heat source, and they can be triggered automatically at preset schedule by preset
temperature. Within a preset schedule, when the temperature (T3) of top part of tank
drops below the preset switching-on temperature of this function, back-up heating H1 starts
to work, when T3 rises up to the preset turning off temperature, back-up heating H1 is
stopped. Within 24 hours, three time sections can be set with this controller.
Factory set:
The first schedule: back-up heating function starts at 4:00 and ends at 5:00 am. Within this
time section, default switch-on temperature is 40oC; default switch-off temperature is 45oC.
The second schedule: starts at 10:00 and ends also at 10:00 am, it means no back-up
heating in this time.
The third schedule: back-up heating function starts at 17:00 and ends at 22:00 pm. Within
this time section, default switch-on temperature is 50oC; default switch-off temperature is
55oC.
The switch-on temperature adjustable range: 10oC ~ (OFF-2oC)
The switch-off temperature adjustable range: (ON+2 oC) ~ 80oC
If you want to shut off one timing heating, then you can set the turning on time and turning
off time with a same value (for example, the second time section without this function, then
you can set turning on/off time is 10:00 ~ 10:00)
When time is outside of the preset schedule, back-up heating doesn’t work automatically

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even when the tank temperature drops to the switch –on temperature of heating.
Note:
When there is no sensor installed in the top part of tank (no T3 sensor),
controller will take the signal of T2 (sensor in bottom of tank) automatically to
control this function.
The time in this controller is 24 hours mode, when you set schedule, the
switch-off time of heating should be larger than switch-on time. For example: if
you set the switch-on time of heating is at 17:00, but switch-off time of heating is
6:00, then this setting doesn’t take effect, that means within this time section,
heating function doesn’t work. The correct set is like flowing: it should be
divided into two time sections, one time section is from 17:00 to 23:59, the other
time section is from 00:00 to 06:00.
Setup steps: under standby status,
►Press “ Heating” button to enter the timing setup interface, “tH 1o 04:00” shows on
the screen, access the submenu of the switch-on time
and temperature for the first schedule of heating
function.
►Press “Set” button, hour “04” blinks on the screen, the switch-on time and temperature for
the first schedule of heating function can be set.
►Press “▲ ▼” button to adjust hour of time.
►Repress “Set”button again, minute “00” blinks on the screen.
►Press “▲ ▼” button to adjust minute of time.
►Repress “Set” button, temperature “40oC” blinks on the screen.
►Press “▲ ▼” button, to set the switch-on temperature of heating.
►Then, press “Esc” to exit this submenu.
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►Press “ Heating” button, “tH 1F 05:00” shows on the screen, access the submenu of
the switch-off time and temperature for the first
schedule of heating function.
►Press “Set” button again, hour “05” blinks on the
screen.
►Press “▲ ▼”button to adjust hour of time.
►Repress “Set”button again, minute “00” blinks on the screen.

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►Press “▲ ▼”button to adjust minute of time.
►Repress “Set” button, temperature “45oC” blinks on the screen.
►Press “▲ ▼”button, to set the switch-off temperature of heating.
►Then, press “Esc” to exit this submenu; value of the parameters are saved automatically.
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►Press “ Heating” button to enter the timing setup
interface, “tH 2o 10:00” shows on the screen, access
the submenu of the switch-on time and temperature for
the second schedule of heating function.
►Press “Set” button, hour “10” blinks on the screen; the switch-on time and temperature for
the second schedule of heating function can be set.
►Press “▲ ▼” button to adjust hour of time.
►Repress “Set”button again, minute “00” blinks on the screen.
►Press “▲ ▼” button to adjust minute of time.
►Repress “Set” button, temperature “50oC” blinks on the screen.
►Press “▲ ▼” button, to set the switch-on temperature of heating.
►Then, press “Esc” to exit this submenu.
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►Press “ Heating” button, “tH 2F 10:00” shows on the screen, access the submenu of
the switch-off time and temperature for the second
schedule of heating function.
►Press “Set” button again, hour “10” blinks on the
screen.
►Press “▲ ▼”button to adjust hour of time.
►Repress “Set”button again, minute “00” blinks on the screen.
►Press “▲ ▼”button to adjust minute of time.
►Repress “Set” button, temperature “55oC” blinks on the screen.
►Press “▲ ▼”button, to set the switch-off temperature of heating.
►Then, press “Esc” to exit this submenu; value of the parameters are saved automatically.
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►Press “ Heating” button to enter the timing setup interface, “tH 3o 17:00” shows on
the screen, access the submenu of the switch-on time
and temperature for the third schedule of heating
function.