Dynojet 424xlc2: Pre-Installation Guide - Manual (Page 54)

Pre-Installation Guide for Model 224 and 424 Automotive Dynamometers
A P P E N D I X B
Power Requirements and Installation—North America, Japan, and Locations Using 60 Hz Power
B-2
POWER REQUIREMENTS AND INSTALLATION—NORTH AMERICA, JAPAN, AND
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
LOCATIONS USING 60 HZ POWER
The following power requirements and instructions are for North America, Japan, and
locations using 60 Hz power. Refer to “Power Requirements and Installation—
Excluding North America and Japan” on page B-5 for all other locations.
The eddy current brake requires a dedicated 240VAC single-phase power outlet rated
for 30A for proper operation. Failure to follow these instructions could result in
personal injury or damage to the brake. Connecting the brake to the incorrect
voltage will void the warranty. Contact Dynojet with any questions.
Each eddy current brake requires a dedicated wall receptacle which must be wired for
operation and is included with the brake or may be shipped in advanced in a separate
package. The brake is equipped with a twenty-five foot power cord with a twist lock
plug pre-wired on the end.
The dedicated wall receptacle is a twist lock four wire grounded 30A NEMA L14-30
type and must be wired in accordance with local building codes and requirements. If
the facility does not have 120/240 volt single-phase power, and it does have 120/208
volt three-phase Y power, then it is acceptable to connect the four wire receptacle
with two of the three-phase lines, the neutral and the ground. With this arrangement,
there will only be 208 volts between line 1 and line 2 instead of 240 volts. This
acceptable, but performance of the eddy current brake will be reduced. In no case
shall all three-phase lines be connected to the receptacle! Installation may
require a licensed electrician and must conform to UL and NEC safety standards.
Note: If you are installing your brake in North American or Japan and the brake is
not equipped with twist lock four wire grounded plug, contact Dynojet before
attempting to connect the brake.
Local and national electrical codes require a grounded receptacle box.
• This circuit should have a dedicated 30A double pole circuit breaker.
• The brake should be the only device connected to this circuit.
I NSTALLING THE W ALL R ECEPTACLE
The wall receptacle is included with your brake and is shipped in a separate box or
may be shipped in advance in a separate package.
The wall receptacle is a single-phase 240 volt 30A dedicated circuit with a neutral
wire. The neutral wire is not used by the brake, but needs to be connected to terminal
W.
The cable carrying the power to this receptacle should be ten gauge or larger. Check
with local building codes for the correct size.
1
Connect one of the 240V legs to the X terminal (gold colored screw).
2 Connect the other 240V leg to the Y terminal (gold colored screw).
3 Connect the neutral conductor to the W or WH terminal (silver screw).
4 Connect the ground conductor to the G terminal (green colored screw).