Three phase amperage, Three phase wattage – Frymaster Dean 1824E User Manual

Page 13

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1-10

1.16 Element Wattage/Amperage Calculation Charts

Use the charts below when changing voltages or determining amperage for a given element
configuration.

L1

L2
L3

Three Phase

Amperage

To determine Three Phase Amperage, solve for
Single Phase first:

= Single Phase Amps

Voltage

Wattage

240V

17,000W

= 40.944 Amps per Phase

Then divide the Single Phase Amperage by 1.73 to
determine Three Phase Amperage.

1.73

70.833 Amps

=

Example:

L1

L2
L3

Three Phase

Wattage

= New Wattage Rating

[

]

Old Voltage

New Voltage

2

kW Listed

X

If 208V supply is applied to a 17 kW element
rated for 240V, the calculation is as follows:

[

]

240V

208V

2

17,000 Watts

X

= 12.77 kW

Example:

To compute the New Wattage Rating of an element if a
different voltage is applied, use the following formula:




1.17 Troubleshooting

1.17.1 Control and Heating Problems

Problem

Probable Causes

Corrective Action

A. Power cord is not plugged in or circuit

breaker is tripped.

A. Plug power cord in and verify that

circuit breaker is not tripped.

B. Controller has failed.

B. If available, substitute a controller

known to be working for the
suspect controller. If the substitute
controller functions correctly, order
a new controller.

Controller won't

activate.

C. Power supply component or

temperature control board has failed.

C. If any of the components in the

power supply system (including the
transformer and temperature control
board) fail, power will not be
supplied to the controller and it will
not function.

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