EngA RUVG SERIES, Installation, Operation And Maintenance Manual

Page: 19 / 35

A
RUVG MANUAL
19 of 35 June 14
PIPING, ELECTRICAL OR CONTROL SERVICE CONNECTIONS
DO NOT install anything that will interfere with equipment access or the rating plate.
Engineered Air equipment is constructed with cabinet and floors designed to prevent water from entering
the building through the installed unit. When ordered, factory installed pipe chases and/or electrical
chases are built into the unit floor. Factory chases are provided with covers that need to be replaced and
sealed after piping and electrical connections are made.
THE FLOOR OF THE UNIT HAS BEEN MADE WATER ‐ RESISTANT. DO NOT CUT OR DRILL HOLES IN THE
FLOOR OR USE PENETRATING FASTENERS.
All penetrations through the unit walls must be caulked and sealed to prevent air and/or water from
entering the unit.
ELECTRICAL INSTALLATION
DO NOT install anything that will interfere with equipment access or the rating plate.
The unit must be electrically grounded and all wiring must be installed in accordance with the National
Electrical Code, ANSI/NFPA 70, and/or the Canadian Electric Code CSA 22 ‐ 1 and to the approval of the
authorities having jurisdiction. THE FLOOR OF THE UNIT HAS BEEN MADE WATER ‐ RESISTANT. DO NOT
CUT OR DRILL HOLES IN THE FLOOR OR USE PENETRATING FASTENERS. Field wiring diagrams, internal
wiring diagrams and operating functions are included in the control cabinet. The power requirements are
indicated on the rating plate. Where field wiring of control circuits is required, take care to size the field
wiring for a maximum 10% voltage drop. The control circuit ampacity is noted on the field wiring diagram.
See the field wiring diagram for requirements for shielded or twisted pair wire for solid state devices.
Caution: Temporary Power Generation
The warranty will be void if the voltage being fed from any temporary generator is not
within 10% of the nominal rated nameplate voltage and voltage imbalance shall be
limited to 2%. A power monitor shall be installed by others to properly monitor power
quality and conditions.
All generator sets shall be provided with overcurrent and earth ‐ fault protection. The
protective apparatus should be capable of interrupting, without damage, any short ‐
circuit current that may occur.
Warning:
No unspecified external load shall be added to the control transformer circuit(s) or to
the main power circuit(s).