Merrychef conneX 12e - Page 68

6 Replacing components
Back to contents >
Merrychef conneX
®
service and repair manual
68
Component list.
Item
Name
Function
1
Front panel
The front panel houses the touchscreen UI assembly
2
Door handle
Open the oven door using the door handle. Never use the door handle to lift the
appliance.
3
Door cover panel
The door cover panel can be detached for accessing the door hinge arms.
4
Cavity Frame
The oven door and front panel are mounted on the cavity frame, with the top and side
panels clipping on to the edges
5
Air filter faceplate
The faceplate can be tilted to access the air filter.
6
Base plate
The metal base plate carries all oven components.
7
Back panel
The back panel, fitted to the base plate & cooling duct, secures the oven top & side
panels and provides ventilation of the oven interior.
8
Thermocouple
Provides the cavity temperature signal to the IO board
9
Cavity & Cavity Wrap
The insulated cavity (cooking chamber) for cooking food can be accessed by opening
the oven door.
10
Door hinge assembly
The door hinges interact with the microswitches / interlocks.
11
Door microswitch(es) / interlock(s)
The microswitches / interlocks are connected to the door hinges and switch off the
magnetron(s) when the oven door is opened.
12
Cooling fan
The cooling fan draws air through the air filter into the interior of the casing in order to
cool the electrical components.
13
Convection (hot air) fan motor speed
controller (VFD)
This component controls the speed of the convection fan motor depending on specific
oven settings.
14
Transformer(s) (high voltage)
A high voltage transformer(s) feeds the HV microwave circuit.
15
Convection (hot air) fan motor
The convection fan motor is controlled by the speed controller and drives the
convection fan for air flow within the oven cavity.
16
Exhaust pipe
The exhaust pipe leads excessive steam from the cavity to the cooling duct and the
rear air outlet of the oven.
17
Cooling duct
The cooling duct directs heat generated by the magnetron(s) to the rear of the oven.
18
SMPS (low voltage - IO)
The low voltage (ELV) Switch Mode Power Supply module feeds the IO board.
19
Magnetron(s) (high voltage)
A magnetron generates microwaves.
20
Waveguide
A waveguide leads microwaves from a magnetron into the cavity. The HV Diode(s) is
mounted on to the waveguide(s).
21
Capacitor(s) (high voltage)
The capacitor completes the magnetron circuit for required high voltage.
22
Stirrer motor(s)
A stirrer motor turns a stirrer distributing microwave energy in the cavity.
23
IO Board
The IO board controls all electrical oven components.
24
Loudspeaker
The loudspeaker produces sound signals (e.g., cooking process completed).
25
Intake Air Filter Microswitch
Closed circuit when the air filter is correctly installed
26
Cavity overheat thermostat (cavity overheat
stat)
The thermostat continuously monitors the temperature in the cavity and prevents it
from overheating.
27
Cavity overheat thermostat capillary
Connected to the side of the cavity, underneath the cavity wrap, for the cavity overheat
thermostat temperature monitoring
28
Protective earth
Provides a chassis earthed point at the metal base plate of the oven.
29
Electromagnetic Compatibility (EMC) Filter
EMC filters reduce the transfer of electromagnetic noise to and from the mains power
supply.
30
Mains supply fuses
The fuses protect the oven from excessive current draw.
31
Mains power supply cable
For connecting to the kitchen mains power supply.
32
Equipotential bonding connection
This is an electrical connection point to ensure that the frame of oven and any external
conductive components are at an equal (or practically equal) potential when
connected.
33
USB Port
USB socket for uploading and downloading firmware & files
34
VFD supply fuse
3A fuse VFD supply protection from excessive current draw
35
Ethernet port
Ethernet port for network connection
36
VFD safety relay
Convection fan motor IP switched relay supplying VFD power