Thermo 230 / 231 / 300 / 301 / 350
9 Repair
903
9.1.2.1 Installation of Control Unit 1572D as
Substitute for Control Unit 1572
General
Due to the progress in the development of processors
control unit 1572 can no longer be supplied.
The retrofit of control unit 1572D is performed according
to the following procedure:
The modification kit consists of:
•
control unit 1572D
•
igniter box
•
thermo identification label
Procedure
CAUTION
Control unit 1572D may only be used in combination
with the igniter box delivered (green connector cover).
The electrical connector is coded.
1. Remove control unit according to 9.2.5.1 and
discard.
2. Remove igniter box according to 9.2.7.1 and
discard.
3. Install new igniter box according to 9.2.7.2.
4. Install new control unit according to 9.2.5.2.
5. Apply new thermo label onto existing label to indicate
retrofit.
Control unit 1572D
Control unit 1572
Thermo label
Previous igniter box
(black connector cover)
New igniter box
(green connector cover)
Summary of Contents for thermo 231
Page 2: ......
Page 10: ...1 Introduction Thermo 230 231 300 301 350 104 Page empty for notes...
Page 26: ...4 Technical Data Thermo 230 231 300 301 350 404...
Page 50: ...7 Circuit Diagrams Thermo 230 231 300 301 350 712...
Page 72: ...10 Packaging Storage Shipping Thermo 230 231 300 301 350 1002 Page empty for notes...
Page 73: ...Thermo 230 231 300 301 350 Annex A A 1 Annex A Scheduled Maintenance...
