Service Manual - Burner Components - Danfoss
Service Manual - Burner Components - Danfoss
Service Manual - Burner Components - Danfoss
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Oil burner controls<br />
Oil burner controls<br />
BHO ➨ BHO<br />
Type<br />
Code<br />
no.<br />
Comments/<br />
accessories<br />
➨<br />
Type<br />
Code<br />
no.<br />
Comments/<br />
accessories<br />
BHO 61A 057H7031 ➨ BHO 64A4) 057H7030<br />
BHO 61 057H7032 ➨ BHO 64 057H7036<br />
BHO 62 057H7034 ➨ BHO 64 057H7036<br />
BHO 62D 057H7035 ➨ BHO 64 057H7036<br />
BHO 64 057H7036 ➨ BHO 64 057H7036<br />
BHO 64A 057H7030 ➨ BHO 64A4) 057H7030<br />
BHO 64.1<br />
4) Post ignition 2 sec.<br />
057H7037 ➨ BHO 64.1 057H7037<br />
Defective components Replacement components 7000 series code no.<br />
Older oil burner controls BHO 60 series + photo unit<br />
BHO 60 series BHO 60 series only<br />
Old LD/LDS<br />
057H0020 etc. BHO 60 series + photo unit<br />
057H2000 series<br />
New LD/LDS Photo unit only<br />
057H7000 series<br />
In burners without solenoid valve the motor must be connnected to the solenoid valve terminals so that instead of prepurge, only pre-ignition<br />
takes place.<br />
E.g. during maintenance work on the burner, if the oil burner control or photo unit shows defects it must be noted that there are different series<br />
of these components. In some circumstances both components must be replaced even though only one of them is defective. See table.<br />
Units supplied with L&G (Stäfa) reset button placing only.<br />
62
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