PYROTEC PY 12 H Instruction Manual Download Page 8

 
 

 

   

 

3) Replacing the thermocouple 

 

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  Remove control box cover on the kiln. 

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  Remove locking wire. 

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  Loosen connection screws and remove thermocouple. 

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  When connecting the new thermocouple make sure that the 

polarity is correct

 

PtRh-Pt element Type-S 

NiCr-Ni element Type-K 

red wire to (+) port 

red wire to (+) port 

white wire to (-) port 

green wire to (-) port 

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  Secure the new thermocouple with locking wire. 

 

Warranty conditions 

 

We  provide  a  guarantee  of  3  years  from  date  of  purchase  on  flawless  manufacture  and 
function  of  every  PYROTEC-kiln.  Heating  elements  and  thermocouple  are  parts  subject  to 
wear and therefore not included in the guarantee. Additionally, the manufacturer is not liable 
for damages resulting from improper handling of the kiln and ware. 
ATTENTION:  the  fire  bricks  of  the  lining  are  exposed  to  strong  temperature  fluctuations 
which  can  cause  hairline  cracks.  This  process  is  normal  and  does  not  compromise  the 
function  of  the  kiln.  Therefore,  it  is  not  a  reason  for  complaint.  For  the  register  of  warranty 
claims please send us the information on the type plate and a copy of the bill from the dealer. 

 

Faults and their likely causes: 

 

Fault 

Likely causes 

Kiln does not heat up 

kiln lid is not closed correctly 

lid safety switch is out of adjustment 

Contactor is defective 

Thermocouple is defective (replace, see page 14) 

Kiln does not or too slowly 
reach final temperature 

A heating element is defective (test, see page 13) 

In kilns with three-phase power connection, a fuse has 
blown in the meter box 

 

Heating elements are failing due to old age (replace, see 
page 13) 

Kiln shuts down before 
reaching final temperature 

Short-term power failure 

Controller is defective (contact your dealer) 

Kiln shuts down immediately 

Thermocouple is defective  

compensating cable to the thermocouple is defective 

When troubleshooting, please also consult the controller instructions. 

 
Technical details are subject to change. 
 

 

Summary of Contents for PY 12 H

Page 1: ...Instruction Manual Kilns up to 1320 C PY 12 H PY 290 HS ST 35 H ST 250 HD...

Page 2: ...ective 73 23 EWG Alle elektrisch beheizten Brenn fen All electrical heated kilns PY12 H PY290 HS ST35 H ST 250 HD Mit Seriennummern 20000 With serial numbers 2000 Angewandte nationale Normen The follo...

Page 3: ...r 5 Electrical Connection 5 First Firing 5 Operation of the Kiln 6 Maintenance 6 Repairs 7 Warranty conditions 8 Faults and their likely causes 8 Test report 9 Please follow the instructions for the i...

Page 4: ...end phase of the firing in case the kiln or the controller is defective Do not use extension cables Installation of the Kiln Make sure that in public buildings only authorized persons have access to t...

Page 5: ...box The wall outlet must be easily accessible in order to be able to disconnect the kiln at any time from the power grid Do not connect an additional electrical load to this outlet Make sure that this...

Page 6: ...yers will fuse For a glaze firing place metal or ceramic spacers underneath the glazed pieces to prevent glaze from sticking to the shelves It is also recommended to coat the shelves with kiln wash wh...

Page 7: ...ws on the control box cover on the kiln Loosen the connecting screws at the ends of the heating element with two 8 mm spanners and remove them Cut off the looped ends of the heating element Remove the...

Page 8: ...e cracks This process is normal and does not compromise the function of the kiln Therefore it is not a reason for complaint For the register of warranty claims please send us the information on the ty...

Page 9: ...t Intensity L1 A L2 A L3 A Schutzleiterwiderstand PE resistance RSL m Isolationswiderstand Insulation Resistance RISO M Ersatzableitstrom PE Current IEA mA Thermoelement korrekter Sitz Thermocouple OK...

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