Installation Manual

1027144–0001 Draft – Revision D.01 3–10 Installing indoor RT equipment
RT installation
Labels on dual power supply
A label on the dual ac or dc power supply warns:
WARNING
MULTIPLE POWER
CONNECTORS.
DISCONNECT BOTH
AC & DC POWER
BEFORE SERVICING.
Servicing personnel must heed this warning. Note that the IDU
and power supply should be serviced only by HNS.
A second label on the dual ac or dc power supply advises:
CAUTION
THIS EQUIPMENT HAS A
CONNECTION BETWEEN
THE EARTHED CONDUCTOR
OF THE D.C. SUPPLY CIRCUIT
AND THE EARTHING CONDUCTOR.
SEE EARTHING INSTRUCTIONS
To disconnect dc power, unplug the terminal block (shown on
page 3–17). Do not remove the wires from the terminal block
while it is plugged in. If you do, the IDU chassis will not be
grounded.
Additional instructions
If the power supply is a dual ac or dc unit, follow the instructions
in the following sections for both ac and
dc power supplies.