Danfoss Optyma Plus OP-MPS Manual De Instrucciones página 3

Instructions
• It is recommended to install the unit on rubber
grommets or vibration dampers (not supplied).
• It is possible to stack units on top of each other.
Unit
Housing 1
(Code no. 114X31-- or 114X41--)
Housing 2
(Code no. 114X32-- or 114X42--)
• When stacking, the topmost unit must be
secured to the wall, as shown in picture 2.
• Slowly release the nitrogen holding charge
through the schrader port.
• 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 dummy cap.
• It is recommended to insulate the suction pipe
from evaporator 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 electrical 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 and base plate 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
© Danfoss | Climate Solutions | 2021.06
compartment, Fan starts before compressor
with ON time delay of 30 seconds for
compressors.
Maximum
5 – Leak detection
stacking
3
2
• Do not use dye for leak detection.
• Perform a leak detection test on the complete
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 for quicker and efficient evacuation.
• 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 or 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
connections details.
• All electrical components must be qualified
to use A2L refrigerants and "not source of
ignition".
• Ensure that the power supply corresponds
to the unit characteristics and that the power
supply is stable (Allowable voltage tolerance
±10% and Allowable frequency tolerance ±2,5
Hz).
• The power supply cables must be according
to unit data for voltage, current and ambient
condition. Refer Nameplate for voltage and
current information.
• Protect the power supply cable and ensure
correct earthing.
• Make the power supply according to local
standards and legal requirements.
• The unit is equipped with an electronic
controller. Refer to Manual 118U3808 for
details.
• The unit is equipped with a main switch
with overload protection and short circuit
protection. The overload protection is factory
in compressor preset but it is recommended to check the
Never pressurize the circuit with
oxygen or dry air. This could cause
fire or explosion.
wiring diagram for electrical
value before taking the unit in operation. The
value for the overload protection can be found
in the wiring diagram in the front door of the
unit.
• The unit is equipped with high and low pressure
switches, which directly cuts the power supply
to the compressor in case of activation.
Parameters for high and low pressure cut outs
are preset in the controller, adapted to the
compressor installed in the unit.
• Optyma™ Plus 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.
8 – Safety
Electrical box door should be in
closed condition before connecting
to power supply.
Unit has liquid receiver with an Adapter Plug with
3/8" NPT connection. Installer/end 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.
• Beware of extremely hot and cold components.
• Beware of moving components. Power supply
should be disconnected while servicing.
• As per EU F-gas regulation, R1234yf, R454C
& R455A are considered as mildly flammable
refrigerant. Optyma™ Plus units are qualified
with R1234yf, R454C & R455A. All precaution
and safety measure to be taken care before and
after installation.
• All components should be compatible to
use with specified refrigerants according to
Optyma™ Plus condensing units codes. Refer
Annex A
• In order to avoid electric arc between hermetic
connector pins, compressor must not start
or electrical tests such as dielectric strength
must not be performed while the refrigerating
system is under vacuum.
• Optyma™ Plus condensing
pre ventilation via condenser fan prior to
compressor starting (30 seconds).
9 – Filling the system
• Never start the compressor under vacuum.
Keep the compressor switched off.
• Use only the refrigerant for which the unit is
designed for.
• Before filling the refrigerant into the Optyma™
Plus condensing unit wear appropriate PPEs
(Personal Protective Equipments).
• If additional oil is required please refer to the
compressors label for type of oil. Check the
Compressor application guideline for minimum
118A2177B - AN37261897352601-010201 | 3
units have