The condensing unit must only be used for
its designed purpose(s) and within its scope of
application.
Under all circumstances, the EN378 (or
other applicable local safety regulation)
requirements must be fulfilled.
The condensing unit is delivered under nitro-
gen 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 cau-
tion in the vertical position (maximum offset
from the vertical : 15°)
A
B
C
D
E
F
G
K
H
I
J
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.
A: Model
B: Code number
C: Application, Protection
D: Refrigerant
E: Housing Service Pressure
F:
Supply voltage, Locked Rotor Ampere,
Maximum Current Consumption
G: Serial Number and bar code
H: Cable entry ports
I: Suction port
J: Liquid port
K: Microchannel heat exchanger
L
M
N
O
L
[mm]
M
[mm]
N
[mm]
O
[mm]
250
650
550
550
Picture 1 : Minimum mounting distances
Picture 2
Picture 3
Mounting bolts
1 – Introduction
These instructions pertain to Optyma™ High
Ambient 52 Pack condensing units OP-LPHE/
MPZE (R404A, R134a) used for refrigeration sys-
tems. They provide necessary information regar-
ding safety and proper usage of this product.
The condensing unit includes following:
• Reciprocating compressor
• Microchannel heat exchanger
• Dual pressure switches
• Service valves suction/liquid
• Weather proof housing
• Filter drier
• Receiver with stop valve
• Sight glass
• Solenoid valve
• Oil separator (LBP only)
• Discharge thermostat (LBP Only)
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 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 position.
• Store the unit between -35°C and 60°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
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.
• 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 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
52°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 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.
•
For all units factory setting of fan speed
controller to be 15 ±1 bar.
• For refrigerant R134a, adjust the factory pres-
sure setting of XGE-2C (code no: 061H3144)
from 15 ±1 bar to recommended setting 8 bar
by rotating the screw by 9 turns in counter
clockwise direction.
Instructions
Optyma™ High Ambient 52 Pack
OP-LPHE/MPZE
1 | © Danfoss | DCS (CC)| 2017.12
FRCC.PI.056.A2.02
