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Danfoss Optyma Slim Pack OP-LSVM Instrucciones página 3

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Instructions
• Slowly release the nitrogen holding charge
through the schrader port. Refer image
Annex-A, Picture 3.
• Connect the unit to the system as soon as
possible to avoid oil contamination from
ambient moisture.
• Avoid material entering into the system while
cutting tubes. Never drill holes where burrs
cannot be removed.
• Braze with great care using state-of-the-art
technique and vent piping with nitrogen gas
flow.
• Connect the required safety and control
devices. When the schrader port is used for this,
remove the internal valve.
• It is recommended to insulate the suction pipe
up to the compressor inlet with 19 mm thick
insulation.
• Make sure there is no refrigerant or damage
inside unit and crack in pipes.
• Make sure that all components inside
electrical box are protected against overload
and not source of ignition from its respective
manufacturer for approved refrigerants.
• Field wiring must be routed through IP65
cable glands and cable entry plate only. For
any additional wire routing drilling or piercing
electrical panel sides strictly prohibited.
• For field wiring, only required hole to be
pierced. No pierced hole should be left
without cable in it. If undesired/unwanted
piercing happens entire gland plate should be
replaced.
• Partition panel has dedicated openings for
pre ventilation, do not seal/obstruct/close the
openings in any manner.
• In the event of uncertain leakages, To avoid
refrigerant
concentration
in
compartment, compressor has a on-time delay
of 30 seconds (factory setting) do not reduce
the setting below 30 seconds.
5 – Leak detection
Never pressurize the circuit with
oxygen or dry air. This could cause
fire or explosion.
• Do not use dye for leak detection.
• Perform a leak detection test on the complete
© Danfoss | DCS (CC) | 2021.03
system.
• The maximum test pressure is 25 bar.
• When a leak is discovered, repair the leak and
repeat the leak detection.
6 – Vacuum dehydration
• Never use the compressor to evacuate the
system.
• Connect a vacuum pump to both the LP & HP
sides.
• Vacuum pump must be certified to use in A2L
refrigerant environment or ATEX certified.
• Pull down the system under a vacuum of 500
μm Hg (0.67 mbar) absolute.
• Do not use a megohmmeter nor apply power
to the compressor while it is under vacuum as
this may cause internal damage.
7 – Electrical connections
• Verify that all electrical connections inside the
condensing unit are properly fastened as they
could have worked loose during transportation.
• Switch off and isolate the main power supply.
• Ensure that power supply can not be switched
on during installation.
• All electrical components must be selected
per EN60335-1, EN60204 or local applicable
standard and unit requirement.
• Refer
to
wiring
connections details.
• All electrical components must be qualified
to use A2L refrigerants and not source of
ignition.
• All electrical connection should comply with
IEC 60335-2 and EN 60335-1.
• Ensure that the power supply corresponds
to the unit characteristics and that the power
supply is stable (nominal voltage ±10% and
nominal frequency ±2,5 Hz).
• The power supply cables must be according
to unit data for voltage, current and ambitent
condition. Refer Nameplate for voltage and
current information.
• Protect the power supply and ensure correct
earthing.
• Optyma™ Slim pack condensing unit starting
frequency need to be limited for reciprocating
compressors
- Without starting capacitor 5 starts per hour
maximum.
- With starting capacitor 10 starts per hour
maximum.
compressor
• Make the power supply according to local
standards and legal requirements.
• The unit is equipped with high and low
pressure switches, which directly cut the
power supply to the compressor and provides
230V AC alarm signals (max. 50VA) in case
of activation. Parameters for high and low
pressure cut outs should be set by installer
considering compressor model, refrigerant and
application.
• Determine the phase sequence by using a
phase meter in order to establish the phase
orders of line phases L1, L2 and L3.
• Connect line phases L1, L2 and L3 to main
switch terminals T1, T2 and T3 respectively.
• Timer should have minimum setting of 30 sec
for pre ventilation. Rotate clockwise and set
arrow to 30s marking or above (refer below
image)
8 – Safety
Units has receive with 3/8» NPT adapter plug.
User can select various options as mentioned in
EN378-2:2016 Article § 6.2.2.3
• The unit/installation into which the condensing
unit is mounted/integrated, must be in
accordance with the PED.
diagram
for
electrical
• As per EU F-gas regulation, R1234yf, R454C &
R455A are considered as mildly flammable
refrigerant. Optyma™ Slim Pack units are
qualified with R1234yf, R454C & R455A. All
precaution and safety measure to be taken care
before and after installation.
• All Optyma™ Slim pack condensing units are
supplied with adjustable dual pressure switch
(KP-17WB) with maximum 0.5A current rating.
• In order to avoid electric arc between hermetic
connector pins, compressor must not start or
electrical tests such dielectric strength must
not be performed while the refrigerating
system under vacuum.
• All components should be compatible to
use with specified refrigerants according to
Optyma™ Slim Pack condensing units codes
.Refer Annex A.
• Optyma™ Slim Pack condensing units have
pre ventilation via condenser fan prior to
compressor starting (30 seconds). Never
disconnect or modify timer settings.
• Beware of hot and extremely cold components.
• Beware of moving components. Power supply
should be disconnected while servicing.
9 – Filling the system
• Before filling the refrigerant into the Optyma™
Slim Pack condensing unit wear appropriate
PPEs.
• Never start the compressor under vacuum.
Keep the compressor switched off.
• If additional oil is required please refer to the
compressors label for type of oil.
• Use only the refrigerant for which the unit is
118A2176A - AN37261865152501-010101x1 | 3
Electrical box door should be
in closed condition before
connecting to power supply.

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