MDE-3116E Distribution Box PA0306 Installation Instructions · November 2015
Page 9
Preliminary Preparation
An enclosed weather-protected structure must be located on the site for housing the D-Box.
Room ambient temperature or weather-protected containment structure temperature must not
exceed 130 °F (55 °C). This maximum temperature is allowed only if the equipment is
allowed free air flow.
Megger testing of field wiring must be completed prior to connecting wires to the D-Box.
The data cabling between the D-Box and the system controller must be kept separate from all
other power and control lines.
Physical Placement
Locate the D-Box in an area not subjected to extreme temperature variations (the D-Box is not
weather proof). Refer to
on
. The ambient temperature must
remain relatively constant. Do not install the D-Box in a position subject to direct sunlight. If
conditions so dictate, provide a suitable sunscreen.
The PA0306 D-Box is suitable for use over hazardous locations. The box must be installed at
least 18 inches above the floor. Locate the D-Box in an area which minimizes the possibility of
liquids being spilled onto it.
Allow several inches clearance on the left side of the D-Box for the AC power cord. Allow
2 inches clearance above the box for removing the cover.
Electrical Wiring Requirements
The receptacle providing power to the D-Box must be a properly installed isolated ground
receptacle (Hubbell
®
#IG5261 or equivalent). This type receptacle is easily identified by its
bright orange color and by the triangle embossed into the face of the outlet. The green
grounding screw must be attached to the grounding conductor.
• All electrical wiring must conform to NEC and local wiring codes, as well as the criteria in
this manual and
MDE-3620 Point of Sale (POS) Systems Site Preparation Manual
.
• One conduit from the breaker panel to the D-Box location is required. The conduit must
contain three 14 AWG wires: 115 VAC hot, neutral, and ground; or 230 VAC L1, L2, and
Ground. Do not use the electrical conduit to provide earth ground.
• The circuit powering the D-Box must not power other devices. This circuit must not share
a conduit with wiring for devices drawing high amperage (compressor, freezer, and so on)
or devices that are sources of Radio Frequency Interference [RFI (TV, microwave,
intercom, etc.)].
• The AC outlet must be within 6 feet of the D-Box (see
). Do not use
extension cords.
Note: The box and associated wiring must not be located closer than 12 inches to an
electronically noisy device, such as a variable speed Submersible Turbine Pump
(STP) controller or associated wiring.
• The receptacle is to be installed in accordance with
MDE-3620 Point of Sale (POS)
Systems Site Preparation Manual
.
Note: For 230 VAC operation, a 9-foot detachable line cord is provided. It is the
customer’s responsibility to supply a plug for the cord that meets local electrical
codes and UL requirements.
