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2) 3-Phase (3ø) Wiring Connections/Hookup
The electrical connections on
ALL 3-phase (3ø) gas and steam dryers are made into the rear
service box located at the upper left area of the dryer. The electrical connections are made at the
power distribution block located in the service box. The ground connection is made to the copper
lug, also provided in this box. To gain access, the service box cover must be removed.
The neutral will only be used on 4-wire service. This is typical for 380-416V, 50 Hz.
b. Electrically Heated Models Only
The electrical input connections are made at the electric oven contactor located inside the assembly at
the rear center upper section of the dryer. The ground connection is made to a copper lug also provided
in this area. To gain access, remove oven rear service cover.
The only electrical input connections to the dryer are the 3-phase (3ø) power leads (L1, L2, L3, and
sometimes neutral) and ground. Single-phase (1ø) power for the control circuit and for any single-
phase (1ø) motors (if present) is done internally to the dryer by the factory at the oven contactor. No
single-phase (1ø) input connection is required on a 3-phase (3ø) dryer.
CAUTION: The dryer must be grounded. A ground
lug has been provided for this purpose.
Input connection wiring must be sized properly to
handle the dryer’s current draw. This information is
printed on the dryer’s data label.
IMPORTANT: A strain relief must be used where the
input wiring enters the oven assembly.
G. GAS INFORMATION
It is your responsibility to have ALL plumbing connections made by a qualified professional to ensure that the
gas plumbing installation is adequate and conforms to local and state regulations or codes. In the absence of
such codes,
ALL plumbing connections, materials, and workmanship must conform to the applicable requirements
of the National Fuel Gas Code ANSI Z223.1-LATEST EDITION, or in Canada, the Canadian Installation Codes
CAN/CGA-B149.1-M91 (Natural Gas) or CAN/CGA-B149.2-M91 (Liquid Propane [L.P.] Gas) or LATEST
EDITION.