Optyma
Plus INVERTER
™
Condensing Units OP-MPLM, OP-MPPM
Installation and servicing of the condensing units by qualified personnel only. Follow these instructions and sound refrigeration engineering
practice relating to installation, commissioning, maintenance and service.
This unit contains frequency converter and EMI filter with capacitors. Disconnect the AC mains and wait for at least 4 min to de-Energize all Electrical
parts before opening the door for performing any service or repair work. Failure to wait the specified time after power has been removed could result
in death or serious injury
The condensing unit must only be used for its designed purpose(s) and within its scope of application. Refrigerant to be used as per specification with respect
to model.
Under all circumstances, the EN378 (or other applicable local safety regulation) requirements must be fulfilled.
The condensing unit is delivered under nitrogen gas pressure (2 bar(g)) and hence it cannot be connected as it is; refer to the ''installation'' section for
further details.
The condensing unit must be handled with caution in the vertical position (maximum offset from the vertical : 15°)
Compressor of condensing unit cannot be connected directly to the network in any case, only via original drive from Danfoss.
For PED Cat I models: Pressure relief valve shall be mounted in refrigerant system during field installation. PRV should be mounted on receiver vessel.
Relevant Standards and Directive
EN 378 -2:2016: Refrigerating Systems And Heat Pumps-Safety And Environmental Requirements.
EN 60335-1: Household And Similar Electrical Appliances – Safety –Part 1: General Requirements
Low Voltage Directive no. 2014 / 35 / UE
Machinary Directive no. 2006 / 42 / CE
Pressure Equipment Directive (PED) no. 2014/68/EU
RoHS Directive 2011/65/EU
WEEE Directive 2012/19/EU
(Other local applicable standards)
1 – Introduction
These instruction pertain to Optyma
sing units OP-MPLM, OP-MPPM used for refrigera-
tion systems. They provide necessary information
regarding safety and proper usage of this product.
The condensing unit includes following:
• Microchannel heat exchanger
• Variable speed scroll compressor
• Receiver with stop valve
• Oil separator
• Ball valves
• Sight glass
• High & low pressure switches
• Filter drier
• Electronic controller
• Compressor drive with EMC filter
• Main circuit breaker (Main switch with overload
protection)
• Fan capacitors
• Compressor contactor
• Robust weather proof housing
• Components connected are equipped with
Schrader port
2 – Handling and storage
• It is recommended not to open the packaging
before the unit is at the final place for installation.
• Handle the unit with care. The packaging allows
for the use of a forklift or pallet jack. Use appro-
priate and safe lifting equipment..
2 |AN18718642524203-000601 - 118A5499A
• Store and transport the unit in an upright posi-
Plus conden-
tion.
™
• Store the unit between -35°C and 50°C.
• Don't expose the packaging to rain or corrosive
atmosphere.
• After unpacking, check that the unit is complete
and undamaged.
3 – Installation precautions
Never place the unit in a flammable
atmosphere
Place the unit in such a way that it
is not blocking or hindering walking
areas, doors, windows or similar.
• Ensure adequate space around the unit for air cir-
culation and to open doors. Refer to picture 1 for
minimal values of distance to walls.
• Avoid installing the unit in locations which are
daily exposed to direct sunshine for longer pe-
riods.
• Avoid installing the unit in aggressive and dusty
environments.
• Ensure a foundation with horizontal surface (less
than 3° slope), strong and stable enough to carry
the entire unit weight and to eliminate vibrations
and interference.
• The unit ambient temperature may not exceed
50°C during off-cycle.
• Ensure that the power supply corresponds to the
unit characteristics (see nameplate).
• When installing units for HFC refrigerants, use
equipment specifically reserved for HFC refrige-
rants which was never used for CFC or HCFC refri-
gerants.
• Use clean and dehydrated refrigeration-grade
copper tubes and silver alloy brazing material.
• Use clean and dehydrated system components.
• The suction piping connected to the compres-
sor must be flexible in 3 dimensions to dampen
vibrations. Furthermore piping has to be done in
such a way that oil return for the compressor is
ensured and the risk of liquid slug over in com-
pressor is eliminated.
3.1 – PRV Valve (Not factory mounted)
For
Optyma™
Condensing units which are fall in
PED cat I, PRV shall be fitted (See
Technical data for PED category in
Annex A).
• PRV to be fitted on liquid receiver at 3/8» NPT
Connection. (Refer Coolselector2 for PRV spare
part code). Use Locatite 554 for PRV fitment.
• Torque: 40Nm (Don't exceed given torque )
© Danfoss | Climate Solutions | 2022.03
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INVERTER,