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Electrical Requirements
59
70458301ENR6
To Connect Electrical Service To
The Tumble Dryer
The following steps outline the procedure for
connecting electrical service to the tumble dryer.
3 Phase Models
–
Each tumble dryer must be
connected to its own individual branch circuit
breaker, not fuses, to avoid the possibility of
“single phasing” and causing premature
failure of the motor(s).
Electrical service must be connected using the
appropriate permanent rigid metal conduit
system.
Service conductors must be copper only.
For an existing service, determine your service voltage
and conductor amperage. Carefully review the tumble
dryer serial plate ratings and
Electrical Requirements
section of this manual. If service is inadequate it must
be upgraded by a qualified electrical contractor. Never
connect an improper or inadequate service to any
machine.
Configuring Your Tumble Dryer for Other
Service Voltages
Several gas and steam tumble dryer models have been
designed to be field convertible to other service
voltages. Refer to
Table 7
for these models:
NOTE: Electric models are not field convertible
and must be connected to service specified on serial
plate.
If tumble dryer requires conversion for use on another
service voltage, complete the steps detailed in the
Conversion Instructions
section
prior to connecting
service to machine
.
If tumble dryer does not require conversion or has
been converted according to the
Conversion
Instructions
section of this manual, continue with
step 1.
NOTE: The wiring diagram is located inside the
junction or contactor box.
1. For new service, install a circuit breaker of
proper voltage and current rating as close to each
tumble dryer as possible.
2. Route service conduit from service breaker panel
to tumble dryer service connection box. Conduit
routing should not obstruct access for
maintenance or servicing. Refer to
Service/
Ground Location
.
3. Pull conductors through conduit and attach to
circuit breaker and ground connection. Secure
service ground wire to the grounding screw or
lug. Attach service conductors to appropriately
labeled positions on the terminal block. Make
sure all connections are secure.
4. Complete ferrite installation instructions for all
gas and steam models with OM control suffix.
5. Check electrical service phase sequence (3 Phase
models only) as follows:
a. Energize the electrical service and
momentarily start the tumble dryer. Check the
direction of cylinder rotation. If the cylinder
rotates clockwise as viewed from the front,
the phase sequence is correct. If the cylinder
rotates counterclockwise, proceed with step b.
b. Disconnect power to machine, disconnect and
reverse the L1 and L2 connections on the
terminal block.
Electrical Connections for T30 and T45
Only
All gas and steam tumble dryers require a single
service connection to TB1 of the upper unit junction
box only. The serial plate reflects current draw,
breaker/fuse size and conductor amperage required for
the entire machine.
All electric tumble dryers require separate service
connections for each upper and lower unit. Serial Plate
ratings reflect current draw, breaker/fuse size and
conductor amperage required per unit.
Models
If your Serial Plate
voltage is:
Your tumble dryer
can be converted
to the following
voltages:
025, 030,
035, 055,
T30
120 Volt/60 Hertz/
1 Phase
208-240 Volt/60 Hertz/
1 Phase
025, 030,
035, 055,
T30
200-220 Volt/60 Hertz/
1 Phase
100 Volt/60 Hertz/
1 Phase
025, 030,
035, 055,
T30
200 Volt/50 Hertz/
1 Phase
100 Volt/50 Hertz/
l Phase
025, 030,
035, 055,
T30, T45
240 Volt/60 Hertz/
3 Phase
200-208 Volt/60 Hertz/
3 Phase
025, 030,
035, 055,
T30
380 Volt/50 Hertz/
3 Phase
400-415 Volt/50 Hertz/
3 Phase
Table 7
