Danfoss Optyma Slim Pack OP-LPQE Instructions Manual

Instructions
Optyma™ Slim Pack
OP-LPQE/MPVE/MPME
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.
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 (1 bar) 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°)
For PED Cat I & II 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 n° 2014 / 35 / UE
Machinary Directive n° 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 instructions pertain to Optyma
condensing units OP-LPQE/MPVE/MPME (R22,
R404A, R507, R134a, R513A, R448A, R449A, R452A)
used for refrigeration systems. They provide
necessary information regarding safety and proper
usage of this product.
The condensing unit includes following:
• Scroll/reciprocating compressor
• Microchannel heat exchanger
• Dual pressure switches
• Service valves suction/ liquid
• Weather proof housing (IP 54)
• Filter drier
• Receiver with stop valve
• Sight glass
• Solenoid valve
• Phase sequence relay
• Fully pre-wired electrical panel (including main
switch, compressors contactor, overload relay)
• Crankcase heater
• Fan speed controller
• 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
appropriate and safe lifting equipment.
• Store and transport the unit in an upright position.
• 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.
© Danfoss | Climate Solutions | 2023.05
3 – Installation precautions
TM Slim Pack
Do not braze as long the condensing
unit is under pressure.
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.
PRV: For PED Cat I & II models, PRV
shall be mounted at field during
installation.
• Ensure adequate space around the unit for air
circulation and to open doors. Refer to picture1
for minimal values of distance to walls.
• Avoid installing the unit in locations which are daily
exposed to direct sunshine for longer periods.
• 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
refrigerants which was never used for CFC or
HCFC refrigerants.
• 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 compressor
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
compressor is eliminated.
• Optyma condensing unit has suction and liquid
service valve with schrader port for field service
operation
3.1 – PRV Valve (Not factory fitted)
For Optyma™ Slim Pack, Condensing
units which are fall in PED cat I & II,
PRV shall be fitted (See Technical data
for PED category in Annex A).
PRV is provided as Spare part,. Refer
Coolselector2
• 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 )
• Installer need to take care of where to blow the
leaked refrigerant. Danfoss recommended to
blow refrigerant away form condensing unit.
• Recommended to change PRV when after
discharge, Changing refrigerant
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