Euroster 813 User manual

EUROSTER 813 – USER MANUAL 1

EUROSTER 813

INTRODUCTION

The Euroster 813 is a din-rail mount Solar controller for a domestic water heating system.

It is designed to be used as differential temperature controller to control a solar collector

and maximum 2 storage tanks subject to the chosen operating mode.

The controller is able to control an auxiliary heating (boiler or electric elements to provide

supplementary heat. Users can program the required time schedule to automatically start-stop

the auxiliary heating.

The unit provides 4 operating modes for users to choose from. A preventive measure is build-

in to prevent error from occurrence whilst in selecting the required operating mode. Graphic

of each required mode that will be shown on the LCD of the unit,as below.

Graphic descriptio s to operatio logic i each of 4 operati g modes:

Normally Closed (before setpoint/limitation

Normally Opened (before setpoint/limitation

Mode-1: 2 sensor operation with 1 storage tank

S1 - Solar collector temperature sensor

S2 - Lower storage tank temperature sensor

EUROSTER 813 – USER MANUAL 2

Mode-2: 3 sensor operation with auxiliary heater

S1 - Solar collector temperature sensor

S2 - Lower storage tank temperature sensor

S3 - Thermostatic sensor

Mode-3: 3 sensor operation with auxiliary boiler

S1 - Solar collector temperature sensor

S2 - Lower storage tank temperature sensor

S3 - Thermostatic sensor

Mode-4: 3 sensor operation with 2 storage tanks

S1 - Solar collector temperature sensor

S2 - Lower storage tank temperature sensor

S3 - Differential temperature sensor

EUROSTER 813 – USER MANUAL 3

The co trol-logic of Euroster 813 explai ed i the graphic descriptio s

1. Operating voltage : 100 ~ 240 V AC 50/60 Hz

2. Output rating : (Solar collector circulation Pump Output A - Volt output, 7 Amp \ 250 V AC

(Auxiliary heating Output B-Volt output, 16 Amp\250 V AC

3. Power consumption:4 VA

4. Clock format : 12H/24H by preset. Default setting 24H

5. °C/°F : By preset. Default setting °C (build-in Protective functions

6. Anti-seizing protection : Automatic operation, the Output A will be turned on for 5 seconds

everyday at midnight 12:00 (00:00 when the night temperature is below 15°C.

7. Overheati g protectio : Automatic operatio , whe this protectio is activated,

backlight a d will be sy chro ous flashi g o the LCD.

EUROSTER 813 – USER MANUAL 4

Overheati g i the solar collector

In operating mode-1/2/3

Output A will be turned on when S1 temperature ≥ S1 Hi temp. limits. setpoint and S2

temperature ≤ S2 (Hi temp. limits. Setpoint -2°C

Output A will be turned off when S1 temperature ≤ (S1 Hi temp. limits. setpoint -5°C

and S2 ≤ S2 Hi temp. limits. setpoint

In operating mode-4

Output A&B will be turned on when S1 temperature ≥ S1 Hi temp. limits setpoint and S2

temperature ≤ (S2 Hi temp. Limits Setpoint -2°C

Output A&B will be turned off when S1 temperature ≤ (S1 Hi temp. limits. setpoint -5°C

and S2 temperature ≤ (S2 Hi temp. Limits. setpoint-2°C

Overheati g i the storage ta k

In operating mode-1/2/3

Output A will be turned on when S2 temperature ≥ S2 Hi temp. limits setpoint and S1

temperature ≤ (S1 Hi temp. limits. setpoint -5°C

Output A will be turned off when S2 temperature ≤ (S2 Hi temp. limits. setpoint -2°C

and S1 temperature ≤ S1 Hi temp. limits. setpoint

In operating mode-4

Output A&B will be turned on when S2 temperature ≥ S2 Hi temp. limits. setpoint and S1

temperature ≤ (S1 Hi temp. limits. setpoint -5°C

Output A&B will be turned off when S2 temperature ≤ (S2 Hi temp. limits. setpoint -2°C

and S1 temperature ≤ S1 Hi temp. limits. setpoint

8. Anti-frost protection : Active when the unit is ON (in operation

Output A will be turned on for 1 minute in every hour when S1 temperature = 5°C.

Output A will be permanent turned on when S1 temperature = 2°C, until S1 > 5°C.

Enable(ON or disable(OFF this function is selectable. Default setting : OFF

(Set/adjust all the setpoi ts i the S1,S2 a d S3)

9. Set/adjust the "Hi. Temp. Limits." (the overheating protection temperature setpoint

S1 : Setting range from 60°C to 190°C. Default setting 120°C

S2 : Setting range from 0°C to 100°C. Default setting 95°C

10. Set/adjust the "Lo Temp. Limits" (the lowest temperature protection setpoint :

Only in the S1

Output A will be shut off when temperature at S1 is lower than "Lo Temp. Limits" Setting

range from 10°C to 40°C. Default setting 15°C

11. ∆T S1-S2 (Turn ON or OFF the solar collector circulation pump to the differential setpoints

ON :The minimum required temperature difference between S1 temperature at Solar panel

and S2 temperature at the lower of storage tank which is for turning ON Output A.

Setting range:3~20°C, default setting 10°C

OFF:The minimum required temperature difference between S1 temperature at Solar panel

and S2 temperature at the lower of storage tank which is for turning OFF Output A to avoid

reverse circulation.

Setting range:1~18°C, default setting 3 °C

12. ∆T S2-S3 (Turn ON or OFF the Circulation pump to the differential setpoints Effects

in operating mode-4 only

ON:The minimum required temperature difference between S2 temperature at the lower

of 1st storage tank and S3 temperature at the lower of 2nd storage tank which is for

turning ON Output B. Setting range: 3~20°C, default setting 10°C

OFF:The minimum required temperature difference between S2 temperature at the lower

of 1st storage tank and S3 temperature at the lower of 2nd storage tank which is turning

OFF Output B. Setting range:1~18°C, default setting 3°C

13. Set/adjust the temperature setpoints at S2&S3 and their Switching differential

(Hysteresis

These setpoints will provide this unit with the thermostatic operation to automatically

EUROSTER 813 – USER MANUAL 5

maintain the water in the storage tanks at the required temperature.

The setpoint at S2 controls the ON/OFF in Output A.

The setpoint at S3 controls the ON/OFF in Output B.

S2 : Setting range from 10°C to 100°C. Default setting

60°C

S2 : Switching differential : Setting range from 1°C to

20°C. Default setting 2°C

S3 : Setting range from 10°C to 100°C. Default setting

60°C

S3 : Switching differential : Setting range from 1°C to 20°C.

Default setting 10°C, in mode-2 and mode-3

Default setting 2°C, in mode-4

14. TIMER function

Active only in the operating mode -2 or 3, ON/OFF controls to the time setpoints in the

Output B (S3 . For solar collector systems with auxiliary heating. Enable or disable this

function is selectable. When the TIMER function is enabled, 2 ON-OFF(program-periods

/Day provided, program-resolution : 10 minutes. Default setting : OFF

15. Temperature sensor cable

Collector se sor S1 --- PT1000, 1KΩ at 0°C, Temp. Coefficient 3.9x10 / °C. Resistance

variable rate 0.3851Ω/°C. Temperature display range -40~ + 250°C/-40~482°F, Accuracy

±0.5 °C/1.0 °F. Cable length:2meters,thermal-resisitve PTFE shielding

Ta k se sor S2 --- NTC, 10KΩ at 25°C.

Temperature display range -10 ~ +110 °C/-14 ~ 230°F

Accuracy ±0.5 °C /1.0 °F. Cable length : 1,5 meters , thermal-resistive PTFE shielding.

Ta k se sor (thermostatic) S3---NTC, 10KΩ at 25°C.

Temperature display range -10 ~ +110 °C /-14 ~ 230°F. Accuracy ±0.5 °C /1.0 °F. Cable

length : 1,5 meters, thermal-resistive PTFE shielding.

16. Temperature sensor's calibration : Offset (The same Offset range in all 3 sensors

Range : -10°C ~ + 10°C,default setting 0°C

17. Build-in Rechargeable battery for retaining the settings and the time during power outages

18. Stand-By mode

Manually turn the unit ON/OFF (Output A&B can be turned-on/shut-off manually

19. Key-lock function

Lock out of all the buttons on the front control-panel, prevents the settings from being

tampered with.

20. Anti-Legionella function

Effective only in S3. used for control the auxiliary heating.(Control of Output B .

This function will operate manually only, when it is in operation, Output B will be turned

on to heat up the water. When the water temperature reaches the setpoint, Output B will

continue to operate for a duration of (1080- (12x Anti-legionella temperature setpoint

Seconds. After, the unit will resume its normal operation.

Anti-legionella temperature setpoint: Setting range from 60°C to 90°C. Default setting

70°C

21. Blue backlit LCD, auto mode 10 seconds

22. Dimensions:52.5Wx85.0Hx60.0Dmm. 35 mm Din-rail

EUROSTER 813 – USER MANUAL 6

Remove battery i sulatio before wiri g

Wiri g

The retractor on the back of the plastic housing is for clamping the unit on the Wall or Rail.

Follow the graphic description below when mounting the unit.

Insert a Flat-head screw-driver in the position as

shown above.

Tilt the screw-driver to the direction as shown

above to push down the retractor.

Mou t/Remove the u it i surface-mou t

Mount the provided

surface-mountbracket

on the wall.

Align the top of back plastic

housing with the top of the bracket.

Push down the retractor and

mount.

Push down the retractor

to remove the unit

off the bracket.

EUROSTER 813 – USER MANUAL 7

Mou t/Remove the u it i di -rail mou tl

Align the top of the back plastic housing with the

top of the Din-rail. Push down the retractor and

mount.

Push down the retractor to remove the unit off the

din-rail.

Product descriptio

Set\Adjust i ter al setti gs

We suggest that you read the specification thoroughly before

starting to set/adjust the unit.

This unit has preventive measures to avoid errors whilst in

selecting the required operating mode.

When the error occurs, "Err" will be shown on LCD.

If this situation occurs, either press "reset" or press and

together for 5 seconds to restart setting/adjusting.

Press "reset" prior to starting to set/adjust for first time use.

In the setting/adjusting procedure, if no data is input after 1 minute, this unit will

automatic retain the settings and start to operate. Users may use this when just making

adjustments in the internal settings.

Press and together for 5 seconds to start setting/adjusting

EUROSTER 813 – USER MANUAL 8

A. Set/Adjust the Clock

1. Press or to set the correct Hour of the day

2. Press to set the Minutes.

3. Press or to set the correct minutes

4. Press to set/adjust next setting.

B. A ti-frost protectio A-F (refer to the page of Specificatio Item-8 for a detailed

descriptio )

1. Press or to choose Enable (ON or Disable(OFF this function.

C. Set/Adjust the required operati g mode

This unit provides 4 operating modes, we suggest that you read the "Introduction"

thoroughly in this Instructions before choosing.

1. Press or to choose the required mode