American Dryer Corp ML-55II Electrical Service Specifications, Gas and Steam Models only

Electrical Service Specifications

Important

Figures shown are for non-reversing models only. For

!reversing models contact the factory.

Gas and Steam Models only

ELECTRICAL SERVICE SPECIFICATIONS (PER DRYER)

MPORTANT:208 VAC and 240 VAC ARE NOT THE SAME. When ordering, specify exact voltage.

NOTES: A. When fuses are used they must be dual element, time delay, current limiting, class RK1 or RK5 ONLY. Calculate/determine correct fuse value, by applying either local and/or National Electrical Codes to listed appliance amp draw data.

B.Circuit breakers are thermal-magnetic (industrial) motor curve type ONLY. For others, calculate/verify correct breaker size according to appliance amp draw rating and type of breaker used.

C.Circuit breakers for 3-phase (3Ø) dryers must be 3-pole type.

SERVICE	PHASE	WIRE	APPROX.		MINIMUM	CIRCUIT
			AMP DRAW
VOLTAGE		SERVICE			WIRE SIZE	BREAKER
			60 Hz	50 Hz
120	1ø	2	12	---	*	20
208	1ø	2	7.1	---	*	15
240	1ø	2	6.5	4.8	*	15
208	3ø	3	3.3	---	*	15
240	3ø	3	3.1	3.5	*	15
380/400	3ø	4**	---	2.2	*	15
416	3ø	4**	---	2.3	*	15
460/480	3ø	3	2.1	---	*	15
						11/30/04

*AWG Stranded Wire Type – size wire as per National Electrical Code or local codes.

** 3-Wire available.

Electric Models Only

All electrically heated dryers must be connected to the electric service shown on the dryer’s data label. The connecting wires must be properly sized to handle the rated current.

ELECTRICAL SERVICE SPECIFICATIONS (PER DRYER)

IMPORTANT: 208 VAC AND 240 VAC ARE NOT THE SAME . When ordering, specify exact voltage.

NOTES: A. When fuses are used they must be dual element, time delay, current limiting, class RK1 or RK5 ONLY. Calculate/determine correct fuse value, by applying either local and/or National Electrical Codes to listed appliance amp draw data.

B.Circuit breakers are thermal-magnetic (industrial) type ONLY. For others, calculate/verify correct breaker size according to appliance amp draw rating and type of breaker used.

C.Circuit breakers for 3-phase (3ø) dryers must be 3-pole type.

SERVICE	PHASE	WIRE	APPROX.		CIRCUIT
			AMP DRAW
VOLTAGE		SERVICE			BREAKER
			60 Hz	50 Hz
	20 kW ELECTRIC
208	1ø	2	103	–	125
240	1ø	2	90	88	125
	30 kW ELECTRIC
208	3ø	3	90	–	125
240	3ø	3	79	77	100
480	3ø	3	38	–	50
					11/30/04

Grounding

A ground (earth) connection must be provided and installed in accordance with state and local codes. In the absence of these codes, grounding must conform to applicable requirements of the National Electrical Code ANSI/NFPA NO. 70-LATEST EDITION, or in Canada, the installation must conform to applicable Canada Standards: Canadian Electrical Codes Parts 1 & 2 CSA C22.1-1990 or LATEST EDITION. The ground connection may be to a proven earth ground at the location service panel.

For added personal safety, when possible, it is suggested that a separate ground wire (no. 18 minimum) be connected from the ground connection of the dryer to a grounded cold water pipe. Do not ground to a gas pipe or hot water pipe. The grounded cold water pipe must have metal-to-metal connection all the way to the electrical ground. If there are any nonmetallic interruptions, such as, a meter, pump, plastic, rubber, or other insulating connectors, they must be jumped out with no. 4 copper wire and securely clamped to bare metal at both ends.

Important

For personal safety and proper operation, the dryer

!must be grounded.

Provisions are made for ground connection in each dryer at the electrical service connection area.

Electrical Connections

A wiring diagram is located inside the control box for connection data.

If local codes permit, power to the dryer can be made by the use of a flexible U.L. listed power cord/pigtail (wire size must conform to rating of dryer), or the dryer can be hard wired directly to the service breaker panel. In both cases, a strain relief must be installed where the wiring enters the dryer.

Gas and Steam Models only

Important

A separate protected circuit must be provided to each

!dryer.

Single-Phase (1ø) Wiring Connections/Hookup

The electrical input connections on all single-phase (1ø) gas dryers and steam dryers are made into the rear service box located at the upper left area of the dryer.

113345-9 www.amdry.com 9