38
THE CONTROL SYSTEM
Ref #
Part Description
Part Number
Hardware Description
Hardware #
1
Cable, Smart-Card, 30 inch
100161
N/A
N/A
2
Display with Ribbon Cable,
Brackets
HHB-3204
Screw, #4-40 x 1/4”, PPH, SS, Sems, Int Th
Nut, Keps Hex, #10-32, Cres, Ext Th
101520 (qty 4)
102963 (qty 2)
3
Keypad, General Market
HHB-8244
N/A
N/A
4
Smart Card Reader
100506
Screw, #6-32 x 1/4”, PPH, SS
101560 (qty 4)
Figure 31: Control System Components - Keypad and Display Housing
1 4
2
3
Solid State Relay (SSR)
Figure 32. The solid state relay is a 240 VAC, dual
40-amp relay. K4 (right) switches power to heater
1. K5 (left) switches power to heater 2. When the
SSR is actuated, the (-) control input will go to
0.00 VDC. When not actuated, the control input
will read -24.00 VDC.
Thermocouple – Cook Cavity
Figure 32. The cook cavity thermocouple is type K
and measures the temperature of the recirculating
impingement airflow. The thermocouple is “open”
(F7 Fault) if the display shows 999ºF/C.
Thermocouple – Electrical Compartment (EC)
Figure 32. The electrical compartment thermocouple
is type K and measures the temperature of the elec-
trical compartment. If the temperature within the
electrical compartment is above 158ºF (70ºC), the
control will display an F6 Fault. It is located on the
40-pin connector.
Thermostat – Cooling Fan
Figure 32. The cooling fan thermostat actuates the
rear cooling fans when the electrical compartment
temperature reaches 120ºF (49ºC).
Thermostat – High-Limit
Figure 34. The high limit thermostat is a three-
pole, manual-reset thermostat with a trip point of
572ºF (300ºC). The thermostat interrupts power
to the main convection heater in the event of an
abnormal condition. Reset the high-limit thermo-
stat by pressing the reset button (Figure 34).
Voltage Sensor
Figure 34. For North America oven models, the
oven will detect 208 or 240 incoming voltage.
Initial voltage selection is determined before the
oven is used by the customer. However, if incom-
ing voltage for the store is different than the preset
voltage, the operator must select either 208 or 240
after pressing the On/Off key to turn on the oven.
The correct voltage will be enlarged on the screen,
identifying which option to select.
Wire Harness
The wire harness distributes power to the oven’s
electrical components. (See schematic, page 49).
Summary of Contents for HIGH H BATCH 2
Page 2: ......
Page 3: ...For further information call Customer Service at 800 90turbo Sales Marketing at 866 90turbo TM...
Page 11: ...Specifications and Installation...
Page 12: ......
Page 21: ...Oven Maintenance...
Page 22: ......
Page 26: ...12 OVEN MAINTENANCE This page intentionally left blank...
Page 27: ...Operating the Oven...
Page 28: ......
Page 38: ...22 operating the oven This page intentionally left blank...
Page 39: ...Diagnosing an Issue...
Page 40: ......
Page 54: ...36 diagnosing an issue This page intentionally left blank...
Page 55: ...The Control System...
Page 56: ......
Page 61: ...The Convection System...
Page 62: ......
Page 67: ...The Oven Door...
Page 68: ......
Page 71: ...The Filtering System and Miscellaneous Components...
Page 72: ......
Page 75: ...Schematics...
Page 76: ......
Page 78: ...50 SCHEMATICS This page intentionally left blank...
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