Welbilt MERRYCHEF conneX User Manual

3 Technical data
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Merrychef conneX
®
service and repair manual 29
Description
Features
Function
Rating
Trouble shooting
Heating Element(s)
X12 – Single sheath
resistive heating
element sealed
terminal ends.
X16 - Two sheath
resistive heating
elements sealed
terminal ends. Wired in
parallel.
Heating element(s)
remain on for 30 secs
after opening the door.
Provides heat for the
oven cavity. When air
passes over the
surface, heat is
transferred into the air.
Supply Voltage 230VAC
pulsed from the IO
Board to control power
(wattage).
X12 – Resistance: 19Ω
between terminals,
(any terminal to
ground: open).
Maximum power
2200W
X16 - Resistance: 26Ω
between terminals,
(any terminal to
ground: open).
Maximum power
3200W
Check F3 & F4
Check Neutral
connections, EMI Filter.
Check resistance
ratings. Check IO
terminal connections
X200 & X210.
Check for opens, shorts
& grounds. Check IO
LEDs LD1 & LD25
Check Live supply
potential at heater
terminals
Check Error Log for
E102 & E116 events
Magnetron(s)
One Magnetron fitted
as standard, two
Magnetrons fitted to
High Power oven
versions
Provides microwave
energy, 0 to 100%,
through the
waveguide(s) into the
oven cavity for
accelerated cooking.
At 50% power the
microwave circuit
cycles 20 seconds on /
20 seconds off
X12 - 1000W per
magnetron,
7-8A at 230VAC.
X16 – 900W per
magnetron, 6.5A – 7.5A
at 230VAC.
See HV Components in
Section 5.8 for further
rating information.
(NOT TO BE TESTED
LIVE)
Follow all test
procedures in Section
5.8.
Check for opens, shorts
& grounds.
Check IO Board
connections X400,
X401, X403, X410, X411
& X412. Check IO LEDs
LD4, LD5 & LD21
Check Error Log for
E101 & E113 events
HV Transformer(s)
One HV Transformer
fitted as standard, two
HV Transformers fitted
to High Power oven
versions, wired out of
phase with each other.
Provides both the
stepped down and
stepped up Voltages
for the for the
Magnetron(s)
Primary winding: 200 /
230 VAC. Secondary
winding to Magnetron
Filament = ELV, and
approximately 1:10
stepped up High
Voltage for microwave
circuit (NOT TO BE
TESTED LIVE).
See HV Components in
Section 5.8 for further
rating information.
*(208 / 240 VAC see note
2)
Follow all test
procedures in Section
5.8.
Check for opens, shorts
& grounds
Check IO Board
connections X403,
X410, X411 & X412.
Check IO LED 3 & 4
Check Error Log for
E101 & E113 events
HV Capacitor(s)
One HV Capacitor fitted
as standard, two HV
Capacitors fitted to
High Power oven
versions.
Internal discharge
resistor.
In conjunction with the
HV Diode(s) to double
the stepped up voltage
from the HV
Transformer(s)
2,500 VAC, 1.20
µ
F
±
3%.
See HV Components in
Section 5.8 for further
rating information
(NOT TO BE TESTED
LIVE)
*(0.95 µ F see note 3)
Follow all test
procedures in Section
5.8
Check for opens, shorts
& grounds
Check IO Board
connections X403,
X410, X411 & X412.
Check IO LED 3 & 4.
Check Error Log for
E101 & E113 events

Welbilt MERRYCHEF conneX Specifications

General

Brand	Welbilt
Model	MERRYCHEF conneX
Category	Commercial Food Equipment
Language	English