Vulcan-Hart VE30 ML-126849 Cooktop User Manual


 
ELECTRIC BRAISING PANS - SERVICE PROCEDURES AND ADJUSTMENTS
F35410 (May 2003)
Page 17 of 32
HEATING ELEMENT TEST
VOLTAGE
KW PER
ELEMENT
AMPS PER
ELEMENT
OHMS PER
ELEMENT
208 4 14.3 13.7
240 4 16.7 13.7
480 4 8.7 55.5
NOTES:
1. Values in the table are nominal.
Tolerance is +5/-10%.
2. Voltage values are @ 60HZ.
3. Resistance values (ohms) are @ room
temperature.
4. On all 208V machines, the 240V heating
element is being used (KW output is
reduced).
1. Access the heating elements as outlined in
REMOVAL AND REPLACEMENT OF PARTS.
2. Measure voltage at heating element terminals
and verify it against data plate voltage.
A. If voltage is incorrect
, see
TROUBLESHOOTING.
B. If voltage is correct
, check current draw
(amps) through the heating element lead
wires.
NOTE: This method is preferred over a
resistance check when a clamp on type amp
meter is available.
1) If current draw is correct then heating
element is functioning properly. See
table for proper values.
2) If current draw is not
correct, turn
on/off switch to OFF and disconnect
the electrical supply.
a. Replace heating element then
proceed to step 3.
C. If unable to check current draw, a
resistance check may
indicate a
malfunctioning element.
1) Turn the on/off switch off and
disconnect power to the machine.
2) Remove the lead wires from the
heating element and check
resistance (ohms). See table for
proper values.
3. Check for proper operation.
DC MOTOR CONTROLLER TEST
1. Lower the pan to the full down position.
2. Raise the lid to the full open position.
3. Access the DC motor controller as outlined
under POWER SUPPLY BOX COMPONENTS
in REMOVAL AND REPLACEMENT OF
PARTS.
4. Set VOM to measure AC volts and connect
meter leads at L1 & L2 on the controller.
5. Turn the on/off switch to on.
6. Verify 120VAC at L1 & L2 on the controller
when the lift control switch (momentary) is
operated to raise & lower the pan.
A. If voltage is present but pan does not raise
& lower, proceed to step 7.
B. If voltage is not present refer to
MOTORIZED LIFT OPTION ONLY under
TROUBLESHOOTING.
7. Disconnect power to the machine.
8. Set VOM to measure DC volts and connect
VOM leads to terminals A + (positive) & A -
(negative) on the controller.
9. Re-connect power to the machine.
10. Verify 90VDC (approximate) from the DC
motor controller when the lift control switch
(momentary) is operated to raise & lower the
pan.