OnLine Power Iso-Care - Manual (Page 15)

OnLine Power
6002-033 Rev C 3-2
3-1-1 Input Power Cable Installation
The primary input power circuit should be dedicated exclusively to providing power to the Iso-Care or NRT unit.
This circuit must include three phase conductors and an insulated ground conductor. Size the primary input cable to
suit the unit’s kVA rating, the input voltage and the overall length of the cable. The input cable size and installation
must be in accordance with the National Electrical Code (NEC) and applicable local codes. A parity sized ground,
with respect to the primary input conductors is recommended.
NOTE: The grounding conductor is to be grounded to earth at the service equipment or other acceptable
true building ground such as the building frame in the case of a high-rise steel frame structure.
The primary input power circuit should be installed by a licensed electrician.
Install primary input power cable as follows:
1. Turn facility circuit breaker to OFF, lock and tagout in accordance with OSHA Lockout/Tagout requirements.
2. Remove front panel by unbolting six screws at corners and at left and right sides of panel.
3. The Iso-Care and NRT have conduit cutouts on the left and right sides of the unit’s frame to accommodate the input and
output power cables.
4. Cut proper size hole in side panel to match input conduit.
5. Insert cable/conduit through hole (cutout) in panel and into hole in frame. Secure with appropriate fitting.
6. Prepare cable ends by removing 3/4 inch of insulation from each input power cable conductor.
7. Identify each phase conductor according to phase A, B, C (H1, H2, H3). Identify ground conductor.
8. Route power conductors to input lugs. (See Illustration 1-2 or 1-3. Also see Illustration 3-1, 3-2, or 3-3). Torque to 25
in-lb (29 NM).
9. Connect grounding conductor as follows: (See Illustration 1-2 or 1-3) Torque to 25 in-lb (29 NM).