background image

SHR

 

521 20

© Dra

yton 

06

334

 SHR 521 

20

.monen.

ind

d

|

3. Commissioning
 

To commission you have to adjust the solar thermal system 

System types:

Arr 1 :  standard solar system

Arr 2 :  solar system with back-up heating

1

3

2

backwards

forward

SET

(Selection / Adjustment mode)

Operation control lamp

Arr 1

Arr 2

1. Ac power supply must be activated. The controller passes 
an initialisation phase in which the operating control lamp 
flashes red and green. When the initialisation is complete, 
the controller is in automatic operation with factory set-
tings. The default system scheme is Arr 1.

2. - select Arr 

  - change into 

-mode (see 2.1)

  - select the system scheme by Arr-characteristics

  - adjustment is saved by pressing button 

Now the controller is ready for operation and should al-
low optimum operation of the solar system by the factory 
settings.

Summary of Contents for SHR 521 20

Page 1: ...uying a Drayton product Please read this manual carefully to get the best perfomance from this unit Drayton SHR 521 20 Installation Commissioning Operation Fault nding Examples SHR 521 20 manual B 490...

Page 2: ...e following security advice in order to avoid danger and damage to people and property Instructions Attention should be paid to the statutory provisions for prevention of industrial accidents to the s...

Page 3: ...tus and operating control lamp Operation by 3 pushbuttons on the front of the housing Functions Temperature differential controller with optional system func tions System monitoring according to BAW g...

Page 4: ...521 20 Drayton 06334 SHR 521 20 monen indd 4 Examples SHR 521 20 Please nd detailed con nection diagramms for these systems in chap ter 1 Standard solar systems Solar systems with dual mode DHW cylin...

Page 5: ...before opening the housing 1 2 Electrical wiring The power supply to the controller must only be made by an external mains switch last step of installation and the mains voltage must be 220 240Volt 50...

Page 6: ...nder with 1 store 3 sensors and backup heating The sensor S4 TRF can optionally be used for heat quantity balancing Arr 2 1 2 2 Allocation of terminals for system 2 Symbol Speci cation S1 collector se...

Page 7: ...rd key 1 is used for scrolling forward through the menu or to increase the adjustment values The backwards key 2 is accordingly used for the reverse function To con rm the current mode hold down butto...

Page 8: ...rs with collector sensor Pump 3 way valves The ow direction or the current breaking capacity are always shown Heating circuit Store 1 and 2 with heat exchanger Back upheat with burner symbol Temperatu...

Page 9: ...pply must be activated The controller passes an initialisation phase in which the operating control lamp ashes red and green When the initialisation is complete the controller is in automatic operatio...

Page 10: ...return ow 11 S4 Temperature sensor 4 11 h P x Operating hours relay 1 11 h P1 x Operating hours relay 1 11 h P2 x Operating hours relay 2 11 kWh Heat quantity kWh 12 MWh Heat quantity MWh 12 Arr 1 2 S...

Page 11: ...mperatures display range 40 250 C 4 1 4 Indication of other temperatures Shows the current temperature of the sensor TRF temperature return ow TRF other measured temperatures display mode 40 250 C 4 1...

Page 12: ...eze Adjustment range 0 3 Factory setting 1 MED Concentration of antifreeze in Vol MED is blinded out by MEDT 0 and 3 Adjustment range 20 70 Factory setting 45 The heat quantity transferred is calculat...

Page 13: ...exceeded a further loading of the store is stopped so that a damaging overheating can be avoided If the maximum store temperature is exceeded is shown on the display Please note The controller is equi...

Page 14: ...ctor limit Adjustment range OFF ON Factory setting OFF The minimum collector temperature is a minimum switching temperature which must be exceeded to allow the solar pump R1 R2 to switch on The minimu...

Page 15: ...actory setting OFF 4 1 13 Recooling function If the selected maximum store temperature S MX is reached the solar pump remains activated to avoid overheating the collector The store temperature might c...

Page 16: ...g adjustments can be made 4 1 16 Operating mode HAND HND1 HND2 Operating mode OFF relay off ashing AUTO relay in automatic operation ON relay on ashing HAND HND1 HND2 Operating mode Adjustment range O...

Page 17: ...f the control lamp goes out o k no The can fuse of the controller is defective It can be replaced after removal of the front cover spare fuse is enclosed in the accessory bag Operating control lamp as...

Page 18: ...calci ed yes Control replace Decali cation no Heat exchanger blocked yes no Cleaning Heat exchanger too small yes New calculation of the dimension no Check collector special function Change Ton and To...

Page 19: ...mp start up in manual operation yes There is no current check fuses replace them and check power supply The selected temperature difference for starting the pump is too high choose suitable setting no...

Page 20: ...tning Sensors Our product range includes high precision platinum tem perature sensors atscrew sensors ambient temperature sensors indoor temperature sensors cylindrical clip on sensors and irradiation...

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