Danfoss Optyma Trio Series User guide

Optyma™Trio
Application Guide
http://RA.danfoss.com.br

Content
Contents
Introduction.......................................................................................................................... 4
2.1 Application envelope of the Condensing Units for R404A / R507............................................................. 5
2.2 Applications...................................................................................................................................................................5
2.3 Features...........................................................................................................................................................................5
2.4 Benets............................................................................................................................................................................ 5
General Information ............................................................................................................ 5
3.1 Illustrative Image..........................................................................................................................................................6
Specications ....................................................................................................................... 6
3.2 Nomenclature ...............................................................................................................................................................7
3.3 Performance data ........................................................................................................................................................9
3.2 General Data................................................................................................................................................................10
3.5 Electrical Data .............................................................................................................................................................10
3.6 Dimensional Data .....................................................................................................................................................11
4.1 Storage and Handling...............................................................................................................................................12
4.2 Precautions ..................................................................................................................................................................12
Installation and Operation................................................................................................ 12
4.3 Mechanical Installation............................................................................................................................................13
4.4 Leak detection ............................................................................................................................................................14
4.5 Vacuum dehydration................................................................................................................................................14
4.6 Electrical Installation ................................................................................................................................................14
4.7 Refrigerant and oil charge......................................................................................................................................15
4.8 Verication before operating................................................................................................................................15
4.9 First start-up.................................................................................................................................................................15
4.10 Verication of the unit while operating ..........................................................................................................15
Maintenance....................................................................................................................... 16
Spare parts.......................................................................................................................... 17
Warranty ............................................................................................................................. 18
Danfoss Guideline.............................................................................................................. 19
3FRCC.PC.053.A1.02
Application Guide

The content of this material applies only to
“OptymaTM TRIO” condensing units. This product
is a Danfoss technology solution with the use of
three in parallel connected scroll compressors
in a robust foil framework with high eciency
micro-channel (MCHE) Danfoss condenser.
Even though a lot of benets for the use of
in parallel compressor systems exist, the
more important benets are the use of less
equipment, exibility on the capacity control,
use of few tubing lines, better control of energy
consumption and reduction of installation
time when compared to the use of dierent
equipment with single compressor systems
toobtain the same capacity.
Introduction
4FRCC.PC.053.A1.02
Application Guide

General Information
2.1 Application envelope of the
Condensing Units for R404A / R507
2.2 Applications
2.3 Features
2.4 Benets
Figure 1 Figure 2
-35 -30 -25 -20 -15 -10 -5 0510 15
0
10
20
30
40
50
5
15
25
35
45
T amb (°C)
T evap (°C)
MBP
-45 -40 -35 -30 -25 -20 -15 -10 -5
0
10
20
30
40
50
5
15
25
35
45
T amb (°C)
T evap (°C)
LBP
This unit is intended for diverse applications,
suchas:
• Medium capability refrigeration systems,
ingeneral;
• Medium and small sized supermarkets;
• Distribution centers for freezing and food
preservation;
• Industrial systems;
• Cold water and liquid cooling units, etc.
• Scroll Compressors;
• High eciency micro-channel condenser;
• Designed to operate in locations with high
ambient temperature;
• Motorized fans of high performance and low
energy consumption to obtain the maximum
thermal eciency;
• Motorized fans developed specially to
guarantee the perfect operation in humid
environments and great diversity of dirt;
• 6 pole motorized fans selected to assist in low
noise level operations with dynamic balancing;
• Designed for use in outdoor environments;
• Designed for easy installation and maintenance;
• Framework assembled in galvanized steel with
electrostatic painting resistant to corrosion;
• Removable fan guards to facilitate the cleaning
of the serpentine and general maintenance;
• Service valves in the liquid line and suction;
• Liquid receiver with service valves in the inlet
and outlet connections, according to the
NR10norm;
• Combined oil separator and oil reservoir;
• Individual oil control for each compressor
through the electronic level regulators;
• Compressor with thermal shield for motor
protection against high temperatures and
currents;
• Applications for R404A;
• Electric panel according to the NR13 norm;
• There is enough space for the installation of
additional controls, if necessary.
• Compact, light and resistant unit;
• Easy handling;
• Low noise level, 6-pole fan;
• High performance;
• Low energy consumption.
5FRCC.PC.053.A1.02
Application Guide

Specications
3.1 Illustrative Image
Components
1 - Fan
2 - Micro-channel type condenser
3 - Electronic oil level control valve
4 - Scroll Compressors
5 - Combined separator and oil reservoir
6 - Oil lter
7 - Liquid receiver
8 - Base
9 - Service valve ( GBC) liquid line
10 - Service valve (GBC) suction line
11 - Sight glass
12 - Suction lters and liquid line
13 - High and low security pressure switch
14 - Fan’s control pressure switch
15 - Suction accumulator
16 - Complete electric panel (including
sectionalizers, compressor contactor,
overload relay, fan contactor, circuit breaker,
timers, fault relay/ phase sequence).
Figure 3
6FRCC.PC.053.A1.02
Application Guide

Specications
3.2 Nomenclature
3.2.1 Code and model
Table 1 -
Productconguration
Nomenclature for the
Optyma™ Trio line
1
Application
L - Low evaporating temperature
H - High and medium evaporating temperature
2
Coolant gas
U - R404A / R507
Z - R404A / R507
3
Compressors’
capacity(Kcal/h)
51(00) - 51000 Kcal/h for HBP/MBP
(00)12 - 12000 kcal/h for LBP
4
Condenser’s
technology
D - Micro-channel
5
Productconguration
Table 1
6
Electrical Codes
Q - 220V/3F/60Hz
V - 380V/3F/60Hz
1 2 3 4 5 6
H U D Q5100 50
Code
Application
Pressure
switch
Liquid receiver
Separator
andoilreservoir
Suction
accumulator
Filter Drier
Sight Glass
Service Valve Electric Component
KP15 Safety
KP5 Fan
Suction
L. Liquid
Suction Liquid
line
General
Key
Contactor Circuit breaker Sequence
phase
protector
Compressor Fan Compressor Fan
50 HBP 3 2 1 1 1 1 1 1 1 1 1 3 4 3 4 3
50 LBP 3 2 1 1 1 1 1 1 1 1 1 3 4 3 4 3
7FRCC.PC.053.A1.02
Application Guide

Specications
3.2.2 Label
Figure 4
A: Model
B: Code
C: Serial number and Bar code
D: Compressors Information
E: Fans Information
F: HP pressure test
G: LP pressure test
H: Apparent power
I: Active power
J: RLA nominal current
K: Maximum current of MCC application
Model:
Code:
Serial:
Fan (4):
HP Pressure (bar/psi):
Apparent P.
Active P. (kw)
LP Pressure (bar/psi):
e
8FRCC.PC.053.A1.02
Application Guide

Specications
3.3 Performance data
HBP R404A/R507 60Hz
Condensing Unit
Ambient
Temperature (°C)
Cooling capacity in (Kcal/h) - Evaporating temperature in (°C)
-25 -20 -15 -10 -5 0 5
Model Electrical Code Code C.R. P.C. C.R. P.C. C.R. P.C. C.R. P.C. C.R. P.C. C.R. P.C. C.R. P.C.
HU2900D50 Q
V115F0555 115F0556
32 13910 14.24 17270 14.51 20990 14.94 25090 15.48 29600 16.09 34550 16.72 39960 17.32
35 ---- ---- 16300 15.36 19860 15.80 23780 16.35 28090 16.97 32820 17. 61 38010 18.23
38 ---- ---- 15290 16.27 18680 16.71 22420 17. 27 26530 17. 89 31040 18.54 36020 19.18
43 ---- ---- 13490 17. 88 16620 18.33 20040 18.90 23820 19.54 27990 20.20 ---- ----
HU3500D50 Q
V115F0557 115F0558
32 16490 17.0 4 20180 17.76 24340 18.46 28970 19.20 34060 20.00 39620 20.21 45650 21.94
35 ---- ---- 18990 18.86 22940 19.59 27340 20.35 32200 21.17 37510 22.09 43300 23.15
38 ---- ---- 17760 20.06 21500 20.81 25670 21.58 30290 22.42 35360 23.36 40910 24.44
43 ---- ---- 15600 22.27 18980 23.04 22770 23.84 26980 24.70 31650 25.67 ---- ----
HU4500D50 Q
V115F0559 115F0560
32 22170 22.35 27880 22.68 34510 23.22 42030 23.93 50390 24.74 59540 25.64 69420 26.58
35 ---- ---- 26120 23.95 32430 24.43 39590 25.09 47560 25.89 56290 26.78 65730 27.73
38 ---- ---- 24070 25.34 30290 25.76 37090 26.36 44650 27.12 52950 27.99 61950 28.94
43 ---- ---- 20900 28.00 26610 28.26 32760 28.74 39630 29.41 47210 30.23 ---- ----
HU5100D50 Q
V115F0561 115F0562
32 26090 25.90 32180 26.58 39200 27.45 47170 28.47 56080 29.60 65900 30.79 76600 31.99
35 ---- ---- 30490 27.98 37210 28.83 44830 29.84 53330 30.96 62720 32.14 72990 33.34
38 ---- ---- 28840 28.43 35180 30.31 42430 31.30 50540 32.40 59500 33.57 69320 34.77
43 ---- ---- 25880 31.05 31780 31.81 38320 33.96 45760 35.02 54000 36.16 ---- ----
Condensing Unit
Ambient
Temperature (°C)
Cooling capacity in (Kcal/h) - Evaporating temperature in (°C)
-40 -35 -30 -25 -20 -15 -10
Model Electrical Code Code C.R. P.C. C.R. P.C. C.R. P.C. C.R. P.C. C.R. P.C. C.R. P.C. C.R. P.C.
LZ0012D50 Q
V115F0563 115F056 4
32 ---- ---- 9563 11.13 11990 12.08 14820 13.11 18090 14.19 21800 15.30 25960 16.43
35 ---- ---- 9100 11.4 4 11410 12.42 14110 13.49 17210 14.61 20730 15.78 ---- ----
38 ---- ---- 8612 12.03 10820 12.78 13370 13.88 16310 15.06 19640 16.28 ---- ----
43 ---- ---- ---- ---- 9777 13.71 12090 14.83 14760 15.85 17790 17.16 ---- ----
LZ0014D50 Q
V115F0565 115F0566
32 ---- ---- 1118 0 12.96 13980 14.07 17210 15.32 20910 16.66 25080 18.05 29720 19.44
35 ---- ---- 10630 13.36 13280 14.50 16360 15.79 19860 19.19 23810 18.65 ---- ----
38 ---- ---- 10060 13.62 12570 14.96 15480 16.29 18780 17.74 22510 19.27 ---- ----
43 ---- ---- ---- ---- 11360 15.58 13980 16.89 16940 18.74 20300 20.38 ---- ----
LZ0018D50 Q
V115F0567 115F0568
32 ---- ---- 13590 15.60 16900 17.0 0 20690 18.60 24960 20.34 29700 22.19 34910 21.13
35 ---- ---- 12890 16.12 16030 17. 55 19620 19.19 23650 21.00 28130 22.93 ---- ----
38 ---- ---- 12180 16.50 15130 18.16 18510 19.83 22300 21.69 26520 23.70 ---- ----
43 ---- ---- ---- ---- 13600 18.99 16640 20.66 19990 22.97 23750 25.08 ---- ----
KEY
C. R. capacity ( Kcal/h )
P.C. Total power including fans (KW)
OPERATING CONDITIONS:
Overheating: 20 K
Sub-cooling: 0 K
9FRCC.PC.053.A1.02
Application Guide

Specications
3.2 General Data
3.5 Electrical Data
Application
Chassis
(HP)
Condensing Unit Compressor Fan Condenser
Liquid Receiver
Connection Weight Sound level
Sound Power dBA
Model
Code
Model
Code
Qty
O
(m3/h)
Oil
(L)
Diam.
(mm)
No. Poles
Qty
Air ow
(m3/h)
Type
Internal Vol.
(L)
L. Suction
(in)
L. Liq.
(in)
Liq.
(Kg)
Raw
(Kg)
5m
dB
2m
dB
HBP
B
15 HU2900D50Q 115F0555 MLZ038T2 121U8599 317.0 1.6 500 6 4 13200 N8 1.51 x 2 32 1 5/8 1 1/8 290 300 62 76 84
HU2900D50V 115F0556 MLZ038T9 121U8591
18 HU3500D50Q 115F0557 MLZ045T2 121U8601 320.7 1.6 500 6 4 13200 N8 1.51 x 2 32 1 5/8 1 1/8 290 300 62 76 84
HU3500D50V 115F0558 MLZ045T9 121U8593
C
23 HU4500D50Q 115F0559 MLZ058T2 121U8627 326.4 2.7 630 6 4 33600 Q8 2.54 x 2 40 2 1/8 1 1/8 485 500 64 78 86
HU4500D50V 115F056 0 MLZ058T9 121U8621
27 HU5100D50Q 115F0561 MLZ066T2 121U8623 331.2 2.7 630 6 4 33600 Q8 2.54 x 2 40 2 1/8 1 1/8 485 500 64 78 86
HU5100D50V 115F0562 MLZ066T9 121U8617
LBP
B
15 LZ0012D50Q 115F0563 LLZ015T2 121L9515 317. 5 1.62 500 6 4 13200 N8 1.51 x 2 32 1 5/8 1 1/8 290 300 62 76 84
LZ0012D50V 115F056 4 LLZ015T9 121L9529
18 LZ0014D50Q 115F0565 LLZ018T2 121L9511 320.5 1.62 500 6 4 13200 N8 1.51 x 2 32 1 5/8 1 1/8 290 300 62 76 84
LZ0014D50V 115F0566 LLZ018T9 121L9527
24 LZ0018D50Q 115F0567 LLZ024T2 121L9507 325.3 2.51 500 6 4 13200 N8 1.51 x 2 32 2 1/8 1 1/8 290 300 64 78 86
LZ0018D50V 115F0568 LLZ024T9 121L9525
Condensing Unit Compressor Fan
Model
Code
Total power
Voltage, Phases,
Frequency
Amps
Model
Code
Qty
Voltage, Phases,
Frequency
Amps
Diam. Model
Qty
No. Poles
Power
Voltage, Phases,
Frequency
FLA (60Hz)
kVA MCC LRA RLA MCC mm W230V (A) 380V (A)
HU2900D50Q 115F0555 21.37 230V-3F-60Hz 56.10 MLZ038T2 121U8599 3230V-3F-60Hz 123.0 16.7 26.0 500 4 6 380 230V-3F-60Hz 1.5 0.9
HU2900D50V 115F0556 24.03 380V-3F-60Hz 36.52 MLZ038T9 121U8591 3380V-3F-60Hz 81.0 11.0 17.0 500 4 6 380 380V-3F-60Hz 1.5 0.9
HU3500D50Q 115F0557 24.23 230V-3F-60Hz 63.60 MLZ045T2 121U8601 3230V-3F-60Hz 170.0 19.2 30.0 500 4 6 380 230V-3F-60Hz 1.5 0.9
HU3500D50V 115F0558 27.59 380V-3F-60Hz 41.92 MLZ045T9 121U8593 3380V-3F-60Hz 96.0 12.8 20.0 500 4 6 380 380V-3F-60Hz 1.5 0.9
HU4500D50Q 115F0559 33.53 230V-3F-60Hz 88.00 MLZ058T2 121U8627 3230V-3F-60Hz 190.0 25.6 40.0 630 4 6 870 230V-3F-60Hz 2.9 1.65
HU4500D50V 115F056 0 35.80 380V-3F-60Hz 54.40 MLZ058T9 121U8621 3380V-3F-60Hz 135.0 16.0 25.0 630 4 6 870 380V-3F-60Hz 2.9 1.65
HU5100D50Q 115F0561 37.99 230V-3F-60Hz 99.70 MLZ066T2 121U8623 3230V-3F-60Hz 235.0 29.5 46.0 630 4 6 870 230V-3F-60Hz 2.9 1.65
HU5100D50V 115F0562 43.70 380V-3F-60Hz 66.40 MLZ066T9 121U8617 3380V-3F-60Hz 135.0 20.0 28.0 630 4 6 870 380V-3F-60Hz 2.9 1.65
LZ0012D50Q 115F0563 23.43 230V-3F-60Hz 61.50 LLZ015T2 121L9515 3 230V-3F-60Hz 180.0 18.5 29.0 500 4 6 380 230V-3F-60Hz 1.5 0.9
LZ0012D50V 115F056 4 23.83 380V-3F-60Hz 36.22 LLZ015T9 121L9529 3 380V-3F-60Hz 81.0 10.9 17.0 500 4 6 380 380V-3F-60Hz 1.5 0.9
LZ0014D50Q 115F0565 25.14 230V-3F-60Hz 66.00 LLZ018T2 121L9511 3 230V-3F-60Hz 184.0 20.0 31.0 500 4 6 380 230V-3F-60Hz 1.5 0.9
LZ0014D50V 115F0566 27. 59 380V-3F-60Hz 41.92 LLZ018T9 121L9527 3 380V-3F-60Hz 106.0 12.8 20.0 500 4 6 380 380V-3F-60Hz 1.5 0.9
LZ0018D50Q 115F0567 31.55 230V-3F-60Hz 82.80 LLZ024T2 121L9507 3 230V-3F-60Hz 190.0 25.6 40.0 500 4 6 380 230V-3F-60Hz 1.5 0.9
LZ0018D50V 115F0568 28.97 380V-3F-60Hz 44.02 LLZ024T9 121L9525 3 380V-3F-60Hz 135.0 13.5 21.0 500 4 6 380 380V-3F-60Hz 1.5 0.9
60Hz
60Hz
LRA: Rotor amps blocked, RLA: Nominal current, MCC: Maximum direct current, FLA: Full charge current
10 FRCC.PC.053.A1.02
Application Guide

Specications
3.6 Dimensional Data
Figure 5
Condensing Unit
Dimensions (mm) Connections
Without packaging With packaging Liquid Line Liquid Line
W L H X Y Z A B C D
HU2900D50Q 1184 1530 1290 1284 1630 1390 330 124 146 410
HU2900D50V 118 4 1530 1290 1284 1630 1390 330 124 146 410
HU3500D50Q 1184 1530 1290 1284 1630 1390 330 124 146 410
HU3500D50V 118 4 1530 1290 1284 1630 1390 330 124 146 410
HU4500D50Q 1485 2057 1368 1585 2157 1468 250 224 246 348
HU4500D50V 1485 2057 1368 1585 2157 1468 250 224 246 348
HU5100D50Q 1485 2057 1368 1585 2157 1468 250 224 246 348
HU5100D50V 1485 2057 1368 1585 2157 1468 250 224 246 348
LZ0012D50Q 118 4 1530 1290 1284 1630 1390 330 124 146 410
LZ0012D50V 1184 1530 1290 1284 1630 1390 330 124 146 410
LZ0014D50Q 1184 1530 1290 1284 1630 1390 330 124 146 410
LZ0014D50V 118 4 1530 1290 1284 1630 1390 330 124 146 410
LZ0018D50Q 1184 1530 1290 1284 1630 1390 330 124 146 410
LZ0018D50V 118 4 1530 1290 1284 1630 1390 330 124 146 410
11FRCC.PC.053.A1.02
Application Guide

Installation and Operation
To guarantee an adequate protection,
itis necessary to observe all emphasized
recommendations in this application guide.
The next sections will provide necessary
recommendations for the installation and
operation of the Optyma TM Trio unit, as well as
safety data and appropriate use of the product.
4.1 Storage and Handling
4.2 Precautions
• It is not recommended to open the packaging
before the unit being at the installation site.
• Handle the unit carefully. The framework
allows the use of a forklift or handling cart. Use
appropriate and safe elevation equipment.
• Keep the unit in a vertical position both in
storage and transport.
• Store the unit in an adequate and protected
environment.
• Do not expose the packaging to rain or
corrosive atmosphere.
• After unpacking, verify if the unit is complete
and undamaged.
All the equipment must be examined carefully
upon product receipt in order to verify if
no damages were caused by handling and
transportation.
This equipment was carefully inspected in
our factory, in case there is any apparent or
hidden malfunction, notify immediately the
establishment where it was purchased.
• The installation and maintenance of this unit
must only be held by a certied installer /
engineer / electrician and in accordance with
the local regulatory guidelines.
• Never place the unit in a ammable atmosphere
• Place the unit in a way that it doesn’t block or
complicate the passage areas, doors, windows,
stairs and other accesses.
• Ensure adequate space around the unit for
theair circulation and door opening. See gure
6to obtain the minimum distance values to
thewalls.
• Avoid installing the unit in aggressive
environments and with dicult access.
• Ensure a base with strong horizontal surface
that is stable enough to support all the
unit’s weight and eliminate the vibrations
bymisalignment.
• Check if the power supply corresponds
to the technical specications of the unit
(seeproduct’s marking label).
• By installing units for HFC refrigerants, use
specic equipment for that type of refrigerant,
in other words, that have never been used
before for CFC or HCFC.
• The suction tubing must be exible in 3 dimensions
to mue the vibrations. Furthermore, the tubing
must be done in a way so that the return of the
oil to the compressor is ensured and the return of
liquid refrigerant to the compressor is avoided.
The installation at ground level rarely presents
problems, none the less, if it is not installed at
ground level, an additional tubing for drainage
must be considered in the project.
12 FRCC.PC.053.A1.02
Application Guide

Installation and Operation
4.3 Mechanical Installation • The installation of the unit must comply with
all the current safety local regulations, under all
circumstances.
• The unit must be installed securely on a bracket
or a steady and secure base, with the use of the
vibration shock absorbers with mounting bolts
provided together with the unit. See gure 7.
• Remove the nitrogen load slowly through the
schrader valves located in the suction GBC
service valves and liquid line.
• Connect the unit to the system as quickly as
possible to avoid the oil contamination from
moisture present in the air.
• Avoid the penetration of solid residues derived
from the tubing burr and others.
• Weld the tubing with proper material and always
use nitrogen gas ow to make the environment
inert, avoiding internal carbonation and forming
of residue that may damage the system.
• It is recommended to isolate the suction tubing
with insulation thickness that meets the specic
project conditions for the installation.
• For the initial start-up, the oil level must be
veried and completed with a parcial load, with
the oil provided together with the condensing
unit. If more oil is required, acquire from an
oil distributor the oil of the same brand and
specication provided with the condensing unit.
• After the operation, the sight glass of the oil
compressor must be re-checked and the oil load
completed to adjust to the installation tubing
length, if necessary.
• It is recommended to put the oil through the
service valve of the oil separator/trap through
avacuum pump connected to the high pressure
line.
• The refrigerant charge must be done through the
liquid’s tank service valve or through the schrader
of the GBC service valve of the liquid line.
W
[mm] X [mm] Y [mm] Z [mm]
Chassis - B 1092 1092 1000 1500
Chassis - C 1092 1092 1000 1900
Note: The specication of the chassis for each model can be found in section “3.6 Dimensional Data” in page 11.
Figure 6
13FRCC.PC.053.A1.02
Application Guide

Installation and Operation
4.3.1 Fixation
Figure 7
4.4 Leak detection
4.5 Vacuum dehydration
4.6 Electrical Installation
• Never pressurize the circuit with oxygen or
dryair. This can cause re or explosion.
• Do not use dye for leak detection.
• The use of nitrogen or the system’s own gas
isrecommended.
• Perform a leak detection test in the entire
system.
• The maximum test pressure is 32 bar.
• When a leak is detected, repair the leak
andrepeat the leak detection.
• Never use the compressor to empty the system.
• Connect a vacuum pump to the system’s lower
sides LP and HP.
• The vacuum in the system must reach at least a
complete 500 μm Hg (0.67 mbar).
• When the vacuum level is reached, keep it for a
few hours to guarantee the sealing of the system.
• After this stage, isolate the vacuum pump and
place the nitrogen with a pressure of 4 to 5 bar,
keeping the system at this pressure for 4 hours.
• If the pressure in the gauge connected to the
suction line and discharge lowers in this period,
locate the leak, perform the repair and restart
the vacuum procedure and check the leak again.
• Do not apply energy to the unit while the
system is under vacuum, as this might cause
internal damage.
• Switch o and isolate the main power supply.
• Make sure that the power supply can’t be
switched on accidentally during installation.
• All the electrical components must be selected
according to the local standards and according
to the unit’s requirements.
• Consult the wiring diagram supplied with the
installation manual for details on electrical
connections.
• Make sure that the power supply matches the
unit characteristics and that the energy source
is stable (nominal voltage ± 10% and nominal
frequency ± 2.5 Hz).
• Dimension the power supply cables according
to the unit data on voltage and current.
• Protect the power supply and ensure that the
grounding of the unit is done according to the
current standards.
• The unit is equipped with high and low pressure
switches, which directly shut o the power
supply to the compressor in case of activation.
The unit is also equipped with a phase sequence
relay to protect the unit against phase/
sequence loss / asymmetry and under voltage /
over voltage.
• Observe the correct phase sequence in the
condensing units which use three-phase
compressors.
• Determine the sequence using a phase gauge
to establish the sequences of the line phases L1,
L2 e L3.
• Connect the line phases L1, L2 e L3
corresponding to the terminals of the
compressor T1, T2 e T3 respectively.
Fixation of 4 “vibra-stop” type shock
absorbers included on the Danfoss
supply for the support on the oor
or laying base
14 FRCC.PC.053.A1.02
Application Guide

Installation and Operation
4.7 Refrigerant and oil
charge
4.8 Verication before
operating
4.9 First start-up
4.10 Verication of the unit
while operating
• Use individual protection equipment (IPE)
suchas safety glasses and gloves.
• Never start the compressor under vacuum.
Keepthe compressor switched o.
• Before performing the refrigerant charge,
verify if the oil level is between ¼ and ¾ on the
compressor oil display. If necessary, add oil to
the compressors, refer to the compressor’s label
for oil type.
• Only use the coolant for which the unit was
designed for.
• Perform the refrigerant charge in liquid phase
into the condenser and in the liquid receiver.
Make sure to perform a slow refrigerant
charge until it reaches 4-5 bar in systems
withR404A/507.
• Never put liquid refrigerant through the
suctionline.
• Never use additive or oil mixtures.
• The remaining charge is carried out until the
installation has reached a stable nominal
condition level during the operation.
• Never leave the lling cylinder connected to
thesystem.
• Use safety devices according to locally
applicable regulations and security standards.
• Verify if all electrical connections are attached
correctly and in accordance with the local
regulations.
• Keep the crankcase heater switched on for at
least 12 hours before the system start-up, for the
guarantee of proper lubrication and elimination
of the liquid refrigerant from the compressor's
crankcase.
• Never switch on the unit without having
performed a refrigerant charge .
• All service valves must be in the open position.
See gure 5.
• Verify if the power supply is adequately
connected.
• Verify if the crankcase heater is working.
• Verify if the fan can rotate freely.
• Verify if high and low pressure are balanced.
• Energize the unit and verify the conformity of
the wiring, the tension in the terminals and the
phase sequence.
• The potential reverse rotation of a three-phased
compressor can be detected by no pressure
increase, an abnormal sound level of the
compressor and a lower energy consumption
than the one expected. In this case, immediately
switch o the unit and connect the phases to
their appropriate terminals.
• If the direction of rotation is correct, the indication
of low pressure on the low pressure gauge must
display a decreasing pressure and the indication
of high pressure in the high pressure measurer
must display an increasing pressure.
• The electronic buoys must comply with the
indication.
• Check the rotation direction of the fan. The air
must ow from the condenser to the fan (air
ow from bottom to top).
• Check the high pressure stabilization and the
power supply stability.
• Check the suction overheating to reduce the risk
of the return of liquid to the compressor.
• Observe the compressor oil level in the
beginning and during the operation to conrm
that the oil level remains visible.
• Verify all tubing with respect to unusual
vibration. The movements exceeding 1.5mm
require corrective measures, as the use of
xation supports in the tubing.
• Before leaving the installation site, perform
a general inspection of the installation on
cleanliness, detection of noise and leakage.
• Record type and amount of refrigerant charge,
as well as operation conditions as reference for
future inspections. Use data check sheet
15FRCC.PC.053.A1.02
Application Guide

Maintenance
• Always switch o the unit with the main switch
before removing the fan panel, or any other
panel of the condensing unit.
• The internal pressure and the surface
temperature are hazardous and can cause
permanent injuries.
• The installers and/or maintenance operators
must be certied in accordance with the current
standards and with the use of appropriate tools.
• High pressure tubing temperature may exceed
100°C and cause severe burns.
• Make sure that periodical inspection services
are carried out to guarantee the reliability of
the system and to meet the mandatory local
regulations.
• To ensure the good functioning of the unit and
its energy eciency, it is recommended:
• Periodic maintenance;
• Verify if the safety devices are operational
and properly set;
• Make sure the unit retains the xation
steady without fragility;
• Check if the compressor’s current is correct;
• Conrm if the system is operating
consistently with previous maintenance
records in the established conditions;
• Check if all electrical connections still are
properly attached;
• Keep the unit clean and without rust and
oxidation of the unit’s components, tubing
and electrical connections.
• The condenser must be veried at least once
a year regarding the blockage of the ns by
impurities and must be cleaned if considered
necessary. The access to the internal side of
the condenser takes place through the fans
panel (guard). The micro-channel coils tend
to accumulate dirt on the surface and not in
the interior, which makes them easier to clean
comparing to the tube condensers and ns.
• Remove the dirt from the surface, leaves, bers,
etc., with a vacuum, equipped with a brush
or other soft accessory. Alternatively, blow
the compressed air through the condenser
inside out and brush with a soft bristle. Do not
use a wire brush. Do not impact or scrape the
condenser with the vacuum tube or air orice.
• If the refrigeration system is open, the system
must be pressurized with nitrogen processed in
vacuum to remove the moisture and a new lter
drier must be installed.
16 FRCC.PC.053.A1.02
Application Guide

Spare parts
Condensing Units
HU2900D50Q
HU2900D50V
HU3500D50Q
HU3500D50V
HU4500D50Q
HU4500D50V
HU5100D50Q
Accumulator 191U0067 191U0067 191U0067 191U0067 191U0068 191U0068 191U0068
Acoustic Hood -------
Compressor 121U8599 121U8591 121U8601 121U8593 121U8627 121U8621 121U8623
MCHE Condenser 021Z0139 021Z0139 021Z0139 021Z0139 021Z0140 021Z0140 021Z0140
Crankcase Resistance -------
Motor Fan 191U136320 191U136320 191U136320 191U136320 191U135980 191U135980 191U135980
Filter Drier 023U1392 023U1392 023U1392 023U1392 023U1392 023U1392 023U1392
Oil Filter 191U008810 191U008810 191U008810 191U008810 191U008810 191U008810 191U008810
Oil Level Regulator 191U009030 191U009030 191U009030 191U009030 191U009030 191U009030 191U009030
Lubricating Oil 120Z5034 120Z5034 120Z5034 120Z5034 120Z5034 120Z5034 120Z5034
Oil Separator 191U007850 191U007850 191U007850 191U007850 191U007950 191U007950 191U007950
KP HP_LP Pressure Switch 060-126466 060 -126466 060-126466 060-126466 060-126466 060-126466 060 -126466
KP HP Pressure Switch 0 6 0 -11716 6 0 60 -11716 6 0 60 -11716 6 06 0 -11716 6 0 60 -117 16 6 0 60 -11716 6 06 0 -11716 6
Condensing Units
HU5100D50V
LZ0012D50Q
LZ0012D50V
LZ0014D50Q
LZ0014D50V
LZ0018D50Q
LZ0018D50V
Accumulator 191U0068 191U0067 191U0067 191U0067 191U0067 191U0068 191U0068
Acoustic Hood -120Z5052 120Z5052 120Z5052 120Z5052 120Z5053 120Z5053
Compressor 121U8617 121L9515 121L9529 121L9511 121L9527 121L9507 121L9525
MCHE Condenser 021Z0140 021Z0139 021Z0139 021Z0139 021Z0139 021Z0139 021Z0139
Crankcase Resistance -120Z5040 120Z5040 120Z5040 120Z5040 120Z5040 120Z5040
Motor Fan 191U135980 191U136320 191U136320 191U136320 191U136320 191U136320 191U136320
Filter Drier 023U1392 023U1392 023U1392 023U1392 023U1392 023U1392 023U1392
Oil Filter 191U008810 191U008810 191U008810 191U008810 191U008810 191U008810 191U008810
Oil Level Regulator 191U009030 191U009030 191U009030 191U009030 191U009030 191U009030 191U009030
Lubricating Oil 120Z5034 120Z5034 120Z5034 120Z5034 120Z5034 120Z5034 120Z5034
Oil Separator 191U007950 191U007850 191U007850 191U007850 191U007850 191U007850 191U007850
KP HP_LP Pressure Switch 060-126466 060 -126466 060-126466 060-126466 060-126466 060-126466 060 -126466
KP HP Pressure Switch 0 6 0 -11716 6 0 60 -11716 6 0 60 -11716 6 06 0 -11716 6 0 60 -117 16 6 0 60 -11716 6 06 0 -11716 6
17FRCC.PC.053.A1.02
Application Guide

Warranty
• Always have the model and serial number of the
condensing unit available for any warranty claim.
• The warranty of the product can be rendered
void in the following cases:
- Absence of nameplate.
- External modications, mainly drilling, welding,
broken feet and shock markings.
- Open compressor or returned without sealing.
- Dye for rust detection, water or leak in the
compressor.
- Use of an o-specication refrigerant or
lubricant.
- Any deviation from the recommended
instructions regarding the installation,
application or maintenance.
- Use of the unit in an environment with an
explosive atmosphere.
- No model number or serial number was
informed in the warranty claim.
18 FRCC.PC.053.A1.02
Application Guide

Danfoss Guideline
Danfoss recommends that gases, oils and
other components that can adversely aect
the environment be delivered to dedicated
companies in the recycling or disposal of those
materials for environment protection.
19FRCC.PC.053.A1.02
Application Guide

FRCC.PC.053.A1.02 © Danfoss | DCS (CC) | 2017.11
Danfoss Commercial Compressors
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