Instructions
Designation system for the Optyma™ Plus range
OP - MPXM
125 ML P07
1 2 3 4
5
1 Application
M = MBP
L = LBP
2 Package
Condensing unit family: P = Optyma™ Plus
3 Refrigerant
X = R404A/R507, R134a, R407A, R407F, R448A, R513A
R449A,R452A
4 Condenser
M = Microchannel heat condenser
5 Swept volume
Displacement in cm
: Example 034 = 34 cm
3
6 Compressor platform
ML= Fixed speed scroll MLZ
7 Version
P07: Optyma™ Plus without electronic controller
8 Voltage code
E = 400V/3-phase/50Hz compressor & 230V/1-phase fan
1 – Introduction
These instructions pertain to Optyma
condensing units OP-MPXM used for refrigeration
systems. They provide necessary information re-
garding safety and proper usage of this product.
The condensing unit includes following:
• Microchannel heat exchanger
• Reciprocating or scroll compressor
• Receiver with stop valve
• Ball valves
• Sight glass
• Dual Pressure switch
• Replaceable filter drier
• Main circuit breaker (Main switch with overload
protection)
• Fan and compressor capacitors
• Compressor contactor
• Supply monitoring relay*
• Fans speed controller*
*Optional
2 – Handling and storage
• It is recommended not to open the packaging
before the unit is at the final place for installa-
tion.
• Handle the unit with care. The packaging al-
lows for the use of a forklift or pallet jack. Use
appropriate and safe lifting equipment..
• Store and transport the unit in an upright posi-
© Danfoss | DCS (CC) | 2021.11
E
6
7
8
Version control
Optyma™ Plus
IP level
Compressor technology
Control box (pre-wired E-panel)
Microchannel condenser
Fan speed controller*
Main switch (circuit breaker)
Supply monitoring relay*
Filter drier (flare connections)
3
Sight glass
Crankcase heater
HP/LP adjustable pressostat
Access door(s)
Acoustic insulation
Condensing unit electronic controller
Network connectivity
Stack mounting
Discharge gas thermostat
HP/LP Alarm
* Optional, Not factory premounted
tion.
Plus
• 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 com-
plete 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
circulation 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 dus-
ty 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
(P07)
IP54
Scroll (3phase)
yes
yes
yes
yes
yes
yes
yes
yes
Mechanical Dual Pressure switch
yes
No
No
No
yes
No
No
equipment specifically reserved for HFC refri-
gerants 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 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 compres-
sor is ensured and the risk of liquid slug over in
compressor is eliminated.
4 – Installation
• The installation in which the condensing unit is
installed must comply to pressure Equipment
Directive (PED) 2014/68/EU. The condensing unit
itself is not a "unit" in the scope this directive.
• 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 4
(Code no. 114X44--)
• When stacking, the topmost unit must be secu-
red 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 pos-
118A2984A - AN37374141535501-010101 | 3
Maximum
stacking
2