Figure 3-1: Electrical Terminal Enclosure With Cover In Place - HELIX 8200 Operating And Service Instructions

Installation

Figure 3-1: Electrical Terminal Enclosure with Cover in Place

3-2
4. Thread input power cable end up through the strain relief into the
enclosure.
5. Attach the power conductors onto the appropriate terminals of the
terminal block.
a. For three-phase hookups, attach the three power leads to ter-
minals X, Y and Z.
b. For single-phase hookups, attach the two power leads to ter-
minals X and Y. DO NOT USE TERMINAL Z.
6. Tighten all terminals to 18-22 in.-lbs. torque.
7. Tighten down screws on strain relief.
Ensure that strain relief is tightened down on the outer insulation of the
input power cable and that the cable does not slide.
8. Remount the terminal enclosure cover and secure with two screws.
9. Refer to Final Preparation of Compressor for correct phasing
checkout procedure.
Insure that the ground wire is returned to a suitable ground in a non-
interrupting manner.
CAUTION
WARNING
Cover Screws
-
C TI CRYOGENICS
HELIX TECHNOLOGY CORPORATION
P/N 8040353