Emerson Copeland Scroll YHV 2P Series User Manual

AGL_HP_VS_YHV2P_E_Rev0 17
4 Electrical connection
4.1 General recommendations
WARNING
High voltage! Electrical shock hazard! Serious personal injuries! The
compressor must always have the ground wire attached to the compressor
terminal fence. The other end of the ground wire must be connected to the
appropriate ground terminal on the drive. Refer to original equipment wiring
diagrams. Electrical connections must be made by qualified electrical
personnel.
CAUTION
High voltage! Drive damage! The unit contactor must be installed upstream
of the drive, i.e., not between the drive and the compressor. Major faults and
irreversible damage to the drive could occur if the drive output is open-circuit
while the compressor is running.
Before connecting the drive to the power network, make sure that all the cables to and from the drive
and to the compressor are correctly connected and that the supply voltage, phases and frequency
match the drive nameplate data.
For safety reasons, Emerson recommends that the electrical installation be executed in compliance
with standard EN 60204-1 and/or other standards and regulations of application when dealing with
A2L refrigerants.
The compressor mounting area must be in Zone 2 or outside of any ATEX zone and in line with the
requirements of "Pollution Degree 3" classification.
NOTE: For recommendations specific to the ED3 drive please refer to the ED3 User Manual
(June 2019 version).
4.2 Electrical installation
WARNING
Conductor cables! Electrical shock hazard! Shut off power supply before
undertaking any task on electrical equipment.
WARNING
Ignition source in a potentially flammable atmosphere! Fire hazard! Any
work on the energized terminals in the compressor terminal box could create
an ignition. Do not touch the energized terminals with a tool or cable when the
compressor is energized.
Compressors operating with flammable refrigerants shall use only the qualified
terminal box supplied with the compressor.
Mechanical stress or shock! Overheating! Terminal Fusite damage and
leakage! Mechanical stress and shocks to the Fusite must be avoided as they
could damage the glass and/or ceramic. This might result in hermetic failure
or loss of terminal performance. Precautions are required to prevent striking
or bending of pins. Bent or damaged pins may result in loss of hermeticity
and/or terminal performance.
Ensure correct connection of cables to the compressor terminal Fusite to avoid
local overheating of Fusite pins which might lead to refrigerant leaks.
The terminal box rating is IP21. The compressor has to be protected by a cover which can only be
opened with a tool.
Special attention shall be paid to the electrical connections owing to possible local overheating.
Scroll compressors, like several other types of compressors, will only compress in one rotational
direction. The rotation direction of the variable speed scroll compressors depends on the order of the
phases between compressor and drive, and not on the order of the phases between power supply
and drive. Since there is a 50-50 chance of connecting compressor and drive in such a way as to
cause rotation in the reverse direction, it is important to include notices and instructions in
appropriate locations on the equipment to ensure proper rotation direction when the system
is installed and operated.

Emerson Copeland Scroll YHV 2P Series Specifications

General

Brand	Emerson
Model	Copeland Scroll YHV 2P Series
Category	Air Compressor
Language	English