Repair manual

COMPONENT IDENTIFICATION
6 --- 4
52. S9 – One Shot Steam Button. Pressing the but-
ton in any mode applies power to terminal 2 of
T3 One Shot Steam Solid State Timer and initi-
ates the steam circuit for the set time.
53. S10 – Fan Speed Switch
D High speed, terminals 24 to 26 are closed
applying power to convection motor.
D Low Speed, terminal s 24 to 25 are clo sed
applying power to Solid State Motor Speed
Control .
54. S11 – Meat Probe Switch. terminals 11 to 12
close supplying power to XFMR 208V to 24V
step down transformer for the meat probe.
55. S12 – Flush / Drain Switch
D In order to work, the oven must be in the
“OFF” position and the steam generator
must be below 160_For71_C.
D Flush --- terminals 24 to 25 close supplying
powertoR203Flush/DrainSolidState
timer.
D Drain --- terminals 24 to 26 close supplying
power to the pump.
56. S15 – Deliming switch. SPST switch used for
deliming.OFF postion is for deliming. ON for
normal operation.
57. Speed Control --- Solid state moto r speed con-
trol ler, drops the motor rpm to approxim ately 900
rpm.
58. (GAS OVENS) -- Steam IGN1 – Steam Ignition
Control Modual. Sequence of operation: input
24Vac to THS2 & GND. SPARK outputs to pilot
assembly & sparks. PV1 outputs to pilot valve
& opens valve. SPARK output continues until
flame sense is proved (.15 microamps is lock-
out / minimum you should see is .2 ). Lock out
of modual is after 50 seconds if flame sense
has not been proved. Once SENSE4 has
proved, MV3 outputs. MV3 supplies power to
main valve on the combination valve and burn-
ers light.
59. (GAS OVENS) -- T ransformer (designat ed as
“120V /240V 1 KVA THERMALLY PROTECTED
to 160_C) – step up transformer the control cir-
cuit for ga s ovens with 120Vac input.
60. (ELECTRIC OVENS) -- T ransformer (desig-
nated as “480V / 240V 150VA”) – step down
transformer for 480V electric ovens only (tran s-
former is located under oven cavity).
61. T1 --- B u z z e r
62. T2 --- S t e a m D u t y C y c l e Ti m e r
D P ower in on terminal s 2 & 3. Output on termi-
nal 1
D Used to provi ded power to the steam circuit
in the Combi mode. P ower supplied to termi-
nal 2, terminal 1 on for 45 seconds and off for
80 seconds.
63. T3 – One Shot Steam Solid StateTimer
D Powerinonterminals1&3.Terminal6is
a trigger which initialize timer output on ter-
minal 2. Resistance setting on terminals 4
to 5 determine stay on time.
D When steam injection button is pressed,
power to terminal 6 initiates power out of
terminal 2 for set time. Steam circuit ener-
gized for set time.
64. T4 – Flush Solid State Timing relay. Power in is
onterminals2&3.Outputistoterminal1for
90 seconds. This energizes R203 which allows
the pump and fill solenoid to come on.
65. (GAS OVENS) -- T5 – Hot Air Duty Cycle Solid
State Timer. P ower in is on terminals 2 & 3. Out-
put is to terminal 1 for 45 seconds on and 60
seconds off. When t erminal 1 is on, power is
suppliedtotheHotaircircuittoboostthe
Steam mode.
66. (GAS OVENS) -- XFMR1 –StepDowntrans-
former 208Vac / 240Vac to 24Vac. Supplies
24Vac to the steam ignition modual.
67. (GAS OVENS) -- XFMR2 –StepDowntrans-
former 208Vac / 240Vac to 24Vac. Supplies
24Vac to the hot air ignition modual.
68. XSFMR – Step Down transformer 230Vac to
24Vac. Supplies 24Vac to optional meat probe
controller.