Room thermostat
First stage valve
Ignition transformer
Preheater
Second stage valve
Reset
Preheater
thermostat
Pilot valve
Ionization probe
Air pressure switch
or revolutions per
minute
Photocell
Lockout signal
Fan
Photodiode FD
The whole electrical scheme of the US gas system is shown in
Figure 16
.
Figure 16
Electrical scheme for US gas ovens
3.2.3 ignition sequence
The ignition sequence could be described as shown in
Figure 17
and listed as follow:
Figure 15
TGRD81 flame control board connections
119
Содержание MINDMaps BAKERTOP
Страница 1: ...SERVICE MANUAL...
Страница 134: ...Figure 3 test Other visual checks 1 Cooling fan is running 2 Motors stuck by the shaft 3 External heat source OVEN 134...
Страница 138: ...OVEN Test to do Test 1 138...
Страница 139: ...OVEN Pt100 Temperature Probe Resistance table 139...
Страница 141: ...go to INDEX OVEN Test to do Light ON Light OFF Normal power board status AF04 power board status 141...
Страница 150: ...Test to do test 1 Measure the electrical conductivity of the micro switch OVEN 150...
Страница 155: ...163 OVEN Pt100 Temperature Probe Resistance table 155...
Страница 161: ...Test to do test 1Measurethemotorpowersupply from the power baord OVEN test 2Measure the RPM on the P20 socket 161...
Страница 166: ...OVEN test 1 Measure the power supply to the washing solenoid valve 166...
Страница 167: ...OVEN Low pressure status High pressure status Low pressure status High pressure status Test 2 Test 3 167...
Страница 189: ...OVEN Pt100 Temperature Probe Resistance table 189...
Страница 215: ...214...