TurboChef HIGH H BATCH 2, Руководство по обслуживанию

Страница: 63 / 82

THE
CONVECTION
SYSTEM
41
The convection system is designed to rapidly heat,
clean, and recirculate air into the cook cavity. See
page 49 for a schematic. See pages 42-44 for illus-
trations regarding part locations and replacement.
Components
The convection system consists of the following
components:
£
Blower motor
£
Blower motor speed controller
£
Heaters
£
Jetplates
£
Jetplate support rails
£
Oven rack
£
Rack oscillation motor
£
Swing arm assembly
Blower Motor
Figure 36. The convection motor is a brushless AC
switch reluctance type. Its top speed is 7100 RPM
at 1 HP. The motor is controlled by a proprietary
controller, spins counterclockwise, and can be
tested in Test Mode (page 26).
Blower Motor Speed Controller
Figure 36. The blower motor speed controller
(BMSC) is proprietary and will only operate the
convection motor described above. It is controlled
via 0-10 VDC speed command from the control
board. The BMSC can be tested in Test Mode by
testing the blower motors (see page 26).
Heaters
Figure 37. There are two convection sheathed-style
heaters, each rated at 3000 watts at 208 VAC with
a resistance of 14.4 ohms. The heaters are
controlled by the K4/K5 solid state relay. The heat-
ers can be tested in Test Mode (see page 26).
Jetplates
Figure 35. The jetplates channel air from the
blower motor into the cook cavity. Different hole
patterns are available for custom cooking results;
contact TurboChef for more details.
Jetplate Support Rails
Figure 35. Each jetplate is supported by two rails.
These rails must be removed prior to replacing or
removing the jetplate for cleaning (see page 10 for
detailed cleaning instructions).
Oven Rack
Figure 35. The oven rack sits on two pins and
oscillates to help ensure even cooking. Rack oscilla-
tion can be turned on or off on a per-item basis.
Rack Oscillation Motor
Figure 37. The rack oscillation motor actuates the
swing arm assembly, which causes the rack to oscil-
late. The motor can be enabled on an item-by-item
basis, and can be tested in Test Mode (page 26).
Swing Arm Assembly
Figure 38. The swing arm assembly consists of two
arms connected by a link bar beneath the oven cav-
ity. It is actuated by the rack oscillation motor.
Convection System Troubleshooting
The following faults may occur in relation to the
convection system:
- F1: Blower (see page 28)
- F2: Low Temp (see page 29)
- F6: EC Temp (see page 30)
- F7: Thermo (see page 30)
- F8: Heat Low (see page 31)
The following cooking performance issues may
occur in relation to the convection system:
- Food not cooking properly (see page 34)