Danfoss Optyma Series, Optyma MCZC060, Optyma MCZC030, Optyma MCZC054, Optyma MCZC068 Instructions Manual

Danfoss Commercial

CONDENSING UNITS

50

50

Importer Autoryzowany Przedstawiciel

H

INSTRUCTIONS

Bluestar & Optyma

H

D

D

W

W

noitacilppa PBLnoitacilppa PBM

50 Hz W D H 60 Hz

MGM/MGZ 016-018-022-028 700 500 392 MGM/MGZ 018-022

MGM/MGZ 032-036-040 800 600 442 MGM/MGZ 028-032-036-040
HGM/HGZ 022-028-032 - HGM036 HGM/HGZ 022-028

MGM/MGZ 050-064-080 1000 700 555 MGM/MGZ 050-064

MGM/MGZ 100-125-144-160 1200 800 671 MGM/MGZ 080-100-125-144-160

810 ZGH/MGH810 ZGH/MGH

220ZGL220 ZGL

820ZGL040-820 ZGL

050-440ZGL050-440 ZGL

001-880ZGL001-880 ZGL

050-040-630-230 ZGH/MGH630 ZGH- 050-040 ZGH/MGH

001-080-460 ZGH/MGH001-080-460 ZGH/MGH

HGM/HGZ 125-144-160 1500 870 975 HGM/HGZ 125-144-160

45

35

25

15

-25 -15 -5 5 10

50

45

35

25

15

-15

50

45

35

25

15

-15

HGM R22

LGZ R404A - R507A

-35

HGZ R134a

-5

5 15 20

45

35

25

MGZ R404A - R507A

15

-30 -20 -10 0 5

50

45

35

25

15

-25 -15 -5 5 10

25 -30

Ambient temperature (C°)

Evaporating temperature (C°)

MGM R22

50

45

35

25

15

-15

50

45

35

25

15

-30 -20 -10 0

MGZ R134a

-5

HGZ R404A - R507A

Fig. 1

SH= 10K
Limited superheat

5 10

10

50 Hz

MCZC030 MTZ18
MCZC038 MTZ22

MCZC048 MTZ28
MCZC054 MTZ32
MCZC060 MTZ36
MCZC068 MTZ40

MCZC086 MTZ51
MCZC096 MTZ57 755 700 656
MCZC108 MTZ65

MCZC121 MTZ73
MCZC136 MTZ81 900 900 759
MCZC171 MTZ100

MGZC215 MTZ125
MGZC242 MTZ144 1350 820 759
MGZC271 MTZ160

Comp­ressor

SH= 10K

SH= 10K
RGT= 20°C

W D H

500 620 451

630 650 605

50 Hz

LCHC048 NTZ048 500 620 451

LCHC068 NTZ068
LCHC096 NTZ096 630 650 605
LCHC108 NTZ108

LCHC136 NTZ136 755 700 656

LCHC215 NTZ215
LCHC271 NTZ271

LGHC048 NTZ048 700 500 392

LGHC068 NTZ068
LGHC096 NTZ096 800 600 442
LGHC108 NTZ108

LGHC136 NTZ136 1000 700 555

LGHC215 NTZ215
LGHC271 NTZ271

46

43

38

T° amb (°C)

32

28

-30 -25 -20 -15 -10 -5 0 5 10

46

43

38

T° amb (°C)

32

27

-45 -40 -35 -30 -25 -20 -15 -10

Application envelope MBP

T° evap (°C)

Application envelope LBP

T° evap (°C)

Comp­ressor

R404A/R507A

R404A/R507A

W D H

900 900 759

1200 800 671

Fig. 1

8510198 P03-A © Danfoss Commercial Compressors 03/05

Compressors

2

8510198 P03-A © Danfoss Commercial Compressors 03/05

Fig. 4

Fig. 3

Fig. 5

1 x coil height Min. clearance: 2 x unit length

Fig. 2

Fig. 6

3

8510198 P03-A © Danfoss Commercial Compressors 03/05

KP 15, 15A, 17W, 17B

When used acc. to UL regulations

LR 112A AC3 16 A 400 V 12 W

-1 bar (Pe)(30in.Hg)

LP, aut. reset LP, man. reset HP

Manual test

Convertible reset
KP 15 060-1154, 060-1220, 060-1261, 060-1263, 060-1283

AC1 16 A DC 11

AC1110 A 220 V

LP-man. LP-auto. LP-auto. LP-man.

HP-man. HP-man. HP-auto. HP-auto.

Convertible reset
KP 17B 060-539366, 060-539466

LP-auto.
HP-man.

LP-auto.

HP-auto.

Contents

1 - Introduction
2 - Transportation, storage
3 - Safety measures prior to assembly
4 - Assembly
5 - Leak detection
6 - Vacuum dehydration procedure
7 - Electrical connections
8 - Filling the system

9 - Verification before commissioning
10 - Start up
11 - Troubleshooting
12 - Maintenance
13 - Replacement
14 - User advisory

1 - Introduction

These instructions pertain to Bluestar condensing
units used for refrigeration purposes. They are
intended to provide necessary information
regarding safety features and proper handling of
this product.

Note that this is a general document for the entire
range of condensing units; certain details therefore
may not be applicable to the particular model you
purchased. Please keep your manual and all
relevant information handy for future reference.

• Equipment description: condensing units are
available under different configurations. They
incorporate a compressor and a fan-cooled
condenser mounted on a base frame. In addition,
they may include a liquid receiver, a pressure
switch, a connecting box and service valves.

• Approved list of refrigerants:

- The MGM, HGM, MCMC and MGMC product
line (fitted with Maneurop

®

MT compressors)

can be used with R22, R12 and R502.

- The MGZ, HGZ, MCZC and MGZC product
line (fitted with Maneurop

®

MTZ compressors)
can be used with R404A, R507A, R134a and
R407C.

- The LGZ, LCHC and LGHC product line (fitted
with Maneurop

®

LTZ or NTZ compressors) can

be used with R404A and R507A.

• Note that Maneurop®compressors are filled
with lubricant before leaving the factory:

- The MT series with mineral oil (ref.160P),

- The MTZ series with polyolester oil (ref. 160PZ),

- The LTZ and NTZ series with polyolester oil
(ref. 160Z).

These lubricants must not be mixed with one another.

• Condensing units must only be used for their
designed purpose(s) and within their scope of
application (refer to Fig. 1).

Condensing units are delivered under nitrogen
gas pressure (between 1 and 2 bar) and hence
cannot be connected as is; please refer to the
"Assembly" section for further details.

Condensing units are not certified for mobile

and explosion-proof applications. Any use of
flammable refrigerant (e.g.hydrocarbons) or air is
also strictly forbidden.

• Under all circumstances, the EN378 (or other
applicable local regulation) requirement must be
fulfilled.

When pressure tests are required on the system,
they are to be performed by qualified personnel, in
paying close attention to potential pressure-rela-

ted hazards and heeding the pressure limits dis­played on the compressor nameplate or in the
application guidelines.

Modifications or alterations to the compressor
or receiver (such as brazing on the shell) not
expressly approved by the party responsible for
ensuring compliance could invalidate the user's
authorization to operate the equipment.

2 - Transportation, storage

• The condensing unit must be handled in the
vertical position (maximum offset from the
vertical: 15°). Should the unit be handled in an
upside-down position, its performance may no
longer be insured.

• Beware that all condensing unit handling must
be carried out with extreme caution to avoid any
shocks. Appropriate and safe lifting equipment
is to be used during handling and unpacking.
Be careful with the condenser’s front surface
(note that the condenser side is indicated on
the packaging).

• Any damage noticed on either the packaging
or the product itself upon reception should be
indicated on a Customer Claim addressed to the
shipping company. The same recommendation
applies to all instances when transport instructions
have not been fully respected.

• Please review the safety instructions printed on
the cardboard packaging before storage.

• Verify that the condensing unit is never stored in
an ambient temperature of below -35°C (-31°F) or
above 50°C (122°F).

• Ensure that the condensing unit and its
packaging are not exposed to rain and/or a
corrosive, flammable atmosphere.

3 - Safety measures prior to assembly

• All installation and servicing is to be performed
by qualified personnel in compliance with all
pertinent practices and safety procedures.

• The condensing unit must be located in a
well-ventilated area; air flow through unit shall not
be restricted in any way (refer to Fig.2). Make
sure that the ambient temperature never exceeds
50°C (122°F) during the off-cycle.

• For outdoor installations, provide a shelter or
use a Danfoss condensing unit housing.

• Make certain that the condensing unit can be
mounted onto a horizontal plane with a maximum
slope of 3°.

• Check that the condensing unit model
corresponds to system specifications (capacity,
use of refrigerant, etc.).

• Verify that the power supply corresponds to
compressor and fan motor characteristics (refer
to the condensing unit nameplate for precision).

• Ensure that the refrigerant charging equipment,
vacuum pumps, etc. for HFC refrigerant systems
have been specifically reserved for these refrigerants
and never used with other CFC, HCFC refrigerants.

• Use only clean and dehydrated refrigeration­grade copper tubes as well as silver alloy brazing
material.

• Verify that all system components are
appropriate (use of refrigerant, etc.), clean and
dehydrated before being connected to the
completed assembly.

Perform a check on the suction lines: horizontal
sections are to be sloped downwards towards
the compressor. Suction gas velocity must be
high enough to provide for an adequate oil
return.This velocity must be within 8 to 12 m/s in
vertical risers. In horizontal pipes, this velocity
can decrease to 4 m/s. The use of U-trap and
double-suction risers may be required on vertical
sections, but not in excess of 4 m unless a second
U-trap system has been fitted (refer to Fig. 3).
Suction line piping must be insulated in order to
minimize the effects of superheating.

• The piping connected to the compressor must be
configured on the basis of a flexible 3-axis design
to dampen vibrations and designed in such a way
as to prevent free liquid refrigerant migration and
drainage back to the compressor sump.

When installing a liquid receiver or any other
pressure-containing component on the condensing
unit, be sure that these components comply with
the European P.E.D.

Make sure the installation is equipped with
high-pressure safety components (e.g. pressure
switch, pressure relief valve) to prevent against
the bursting of pressure-containing components.

• Note that all local and regional regulations and
safety standards, such as EN378, must be taken
into account when designing, connecting and
running the system.

4 - Assembly

The condensing unit’s time of exposure to
the atmosphere during installation shall be held
to a minimum. The condensing unit is fitted with
suction and liquid copper stubs equipped with
shut-off valves to enable connection to the circuit
without ingress of air or moisture in the unit.

Opening the shut-off valves before connection will
cause moisture contamination of the compressor
lubricant.

• Rubber grommets can be installed under the
condensing unit base frame, as shown in Fig 4,
to prevent vibration interference from other
operating equipment or machinery and to reduce
vibration transmission to the supporting structure.

Before opening the compressor connection
fittings, it is mandatory to connect a 1/4” service
hose to the Schrader fitting on the compressor
shell in order to gradually release the nitrogen
holding charge.

• Ensure that no material enters into the system
while cutting the tubing. Moreover, never drill
holes in the pipe work after installation.

• Avoid flare-type connections and exercise great
care while brazing (use only state-of-the-art
practices); apply a nitrogen gas flow to prevent
oxidation inside the tubing, especially when HFC
refrigerants are being used. All brazing material is
to contain a minimum of 5% silver.

• When brazing, protect the valves and all other
unit components from torch heat damage (painted
surfaces, gaskets, connecting box).

• Note that it is not necessary to remove compressor
shut-off valves for connection to the system,
hence no need to replace associated gaskets.

• Be sure to connect the required safety and control
devices onto compressor shut-off valves or fittings.

• In case of oil return through the Schrader fitting
on the compressor shell, make sure the internal
valve is removed.

Instructions

4

8510198 P03-A © Danfoss Commercial Compressors 03/05

5 - Leak detection

Never use oxygen or dry air in order to avoid the
risk of fire or explosion.

• Perform a leak detection test on the complete
system by means of: a dry nitrogen pressure test,
a mixture of nitrogen and the refrigerant to be
used in the system, a helium leak test and/or a
deep vacuum test.

• The test should be long enough in duration to
ensure the absence of any slow leaks in the system.

• Use tools specifically designed for detecting leaks.

• The low side test pressure must not exceed

1.1 x Ps pressure indicated on the compressor
nameplate.

• For high side test pressure, do not exceed
the pressure indicated on the condensing unit
nameplate.

• Whenever the condensing unit is equipped with
suction and liquid shut-off valves, these valves are
to remain in the closed position while performing
the leak test (condensing unit leak test already
performed in the factory).

• Should a leak be discovered, proceed with
repair steps and repeat the leak detection.

• When a deep vacuum leak detection test is
selected, observe the following:

1) The level to reach is 500 µm Hg.

2) Wait 30 min.

3) If pressure increases rapidly, the system is not
airtight. Locate and repair leaks. Restart the
vacuum procedure, followed by steps 1, 2, etc.

4) If pressure increases slowly, the system contains
moisture inside. Break the vacuum with nitrogen
gas and restart the vacuum procedure, followed
by steps 1, 2, etc.

5) Connect the compressor to the system by
opening the valves.

6) Repeat the vacuum procedure, followed by
steps 1, 2, etc.

7) Break the vacuum with nitrogen gas.

8) Repeat the vacuum procedure, steps 1, 2;
a vacuum of 500 µm Hg (0.67 mbar) should be
reached and maintained for 4 hours.This pressure
is to be measured in the refrigeration system, and
not at the vacuum pump gauge.

Do not use a megohmeter or apply power
to the compressor while it is under vacuum, as
this may cause motor winding damage (motor
burn-out).

Do not use colored leak detection fluids. Do
not use chlorofluorocarbon in leak testing systems
designed for HFC fluids.

6 - Vacuum dehydration procedure

Whenever possible (if shut-off valves are present),
the condensing unit must be isolated from the circuit.
It is essential to connect the vacuum pump to both
the LP & HP sides, in order to avoid dead-ending
system parts.

Recommended procedure:

1) Once leak detection has been completed,

2) Pull down the system under a vacuum of 500 µm
Hg (0.67 mbar).

3) When the vacuum level of 500 µm Hg has been
reached, the system must be isolated from the
pump.

4) A vacuum of 500 µm Hg (0.67 mbar) has to be
reached and maintained for 4 hours.This pressure

is to be measured in the refrigeration system, and
not at the vacuum pump gauge.

If pressure increases, restart the leak-detection
procedure (refer to the «Leak detection» section
of this manual if necessary).

V

acuum pump:
A two-stage vacuum pump with gas ballast valve
(0,04-mbar standing vacuum) shall be used; its
capacity is to be consistent with system volume.
Never use the compressor as a vacuum pump. It
is recommended to use large-diameter connection
lines and to connect these lines to the shut-off
valves, rather than to the Schrader connection.
This recommendation allows avoiding excessive
pressure losses.

Moisture lev

el:
At the time of commissioning, system moisture
content may be as high as 100 ppm. During
operation, the liquid line filter dryer must reduce
this level to < 20 ppm.

Additional notes:

• To improve moisture removal, the temperature
of the system should not be lower than 10°C.

• A proper vacuum procedure is even more
important with HFC and polyolester lubricant than
it has “traditionally” been with HCFC (R22) or
CFC and mineral oil.

• For further details, please refer to TI 3-026.

Do not use a megohmeter or apply power to
the compressor while it is under vacuum, as this may
cause motor winding damage (motor burn-out).

7 - Electrical connections

• Make sure the main power supply to the system
has been switched off and isolated, in accordance
with applicable regulations, before performing
any electrical connection.

• Please refer to Figs 5 and 6 for typical wiring
connections and examine the specific wiring
diagram located in the electrical box cover.
For further details, refer to the condensing unit
guidelines.

• Note that Maneurop®compressors fitted on
condensing units are protected against overheating
and overloading by an internal safety motor
protector. However, an external manual reset
overload is recommended for protecting the circuit
against over-current.

• The “must trip” value of this overload relay must
be set in accordance with power line sizing and
design and shall never exceed the “A max.” value
stamped on the nameplate.

• On units equipped with an electrical box, all
electrical connections (condenser fan motor,
compressor motor, pressure control switch,
crankcase heater, etc.) have already been wired
at the factory. For single-phase compressors,
start-and-run capacitors are included in the
connecting box.

• The connecting box is equipped with screw type
terminal blocks, for both power and control lines as
well as earth terminals for grounding connections.

• All electrical components must be selected as
per local standards and condensing unit component
requirements.

8 - Filling the system

• Before charging the refrigerant, verify that the oil
level is between 1/4 and 3/4 on the compressor

oil sight glass and/or ensure that the oil charge of
the original compressor is sufficient as regards
system dimension and piping design:

- An additional quantity of oil might be necessary
for line lengths (back and forth) in excess of 20 m.

- In the event additional oil is required, use only an
approved lubricant (refer to the «Introduction»
section of this manual).

• Make sure the refrigerant used to fill the system
is compatible with compressor design. Refer to
the «Introduction» section of this manual for an
approved list of refrigerants.

• Compressor switched off: the liquid refrigerant is
charged into the condenser and/or liquid receiver
in the liquid phase (compulsory for refrigerant
blends).The charge must be asclose to the nominal
system charge as possible in order to avoid both low
pressure operations and excessive superheating
at start-up. Throughout this operation, both
compressor service valves must remain closed.

• Remember that vapor-charging is only appropriate
for pure refrigerants, such as R22.

• To the extent possible, maintain the refrigerant
charge below 2.5 kg per cylinder.Above this limit,
install a system, such as a pump-down cycle or
suction line accumulator, to prevent against liquid
flood-back into the compressor.

• Be sure that the refrigerant charge is suitable for
both winter and summer operations.

9 - Verification before commissioning

Ensure that all service valves are in the open
position before start-up. A closed discharge or
suction service valve may cause serious damage to
the compressor and/or compromise safety device
operation, thereby resulting in potential injury to
personnel.

• Check that all safety devices are operational and
properly set (safety pressure switch set point,
mechanical relief valve if necessary, etc.). Make
sure that these devices comply with both
generally - and locally - applicable regulations
and standards (e.g. EN378).

• When using high-pressure switches or relief
valves, the setting must not exceed maximum
service pressure of any system component. Refer
to the Application Guidelines for relevant condensing
unit pressure safety limits.

• A low-pressure switch is recommended to
prevent operation under vacuum. Use a minimum
setting of 1.2 bar (absolute).

• Verify that all electrical connections are properly
fastened and in compliance with local safety
regulations.

• A compressor crankcase heater is factory
installed, ensure that it has been energized for a
minimum of 12 hours before initial start-up and/or
during prolonged shutdown periods.

10 - Start up

Never start the compressor in the absence of
a refrigerant charge.

• Do not bypass the LP or any other safety
switches during start-up

• Check current draw and voltage levels.

• Monitor the oil sight glass to ensure proper oil return
to the compressor.After 2 to 4 hours of operations
under established conditions, check the oil level
and add oil if necessary (refer to TI bulletin 3-025).

Instructions

5

8510198 P03-A © Danfoss Commercial Compressors 03/05

If oil return continues to perform poorly, further
investigation of the piping design is required.

• In all cases, the application limits of the compressor
must be respected; moreover, high superheat
values lead to high discharge temperatures and
decrease compressor capacity. The maximum
discharge temperature is 130°C: operating ata
higher temperature may result in refrigerant
decomposition.

• Under steady-state operating conditions, check
refrigerant piping or capillary tubes for abnormal
vibrations (refrigeration line movement in excess
of 1.5 mm necessitates corrective actions, pipe
brackets, etc.).

• Ensure that refrigerant flow through the liquid
line sight glass (when mounted) is adequate and
that operating temperatures correspond with
system specifications.

• When needed, refrigerant may be added in the
liquid phase, carefully throttling the refrigerant on
the low-pressure side and as far as possible from
the compressor.The compressor must be operating
during this process.

Do not overcharge the system.

11 - Troubleshooting

• Compressor failure to start: verify that the
compressor is hooked up to the power supply;
check the power lead connections and all suitable
capacitors on single-phase models. If these
verifications reveal no abnormality, control the
motor windings with an ohmmeter.
Note: when the internal motor protector has tripped
out, it may take up to several hours to reset and
restart the compressor.

• Compressor failure to build up pressure:
check to make sure that all bypass valves in the
system have not been opened.Also check that all
solenoid valves are in their proper position. If the
internal pressure relief valve is open, the compressor
sump will be warm and the compressor will trip
out on the motor protector. If this happens, it may
take up to 2 or 3 hours to reset and automatically
restart the compressor.

• Abnormal running noise on the system:

- Ensure the absence of any liquid flood-back
to the compressor by means of measuring
the return gas superheat and compressor sump
temperature.The sump should be at least 10K
above the saturated suction temperature under
steady-state operating conditions.

- Check that the fans are running free and without
vibration.

• The high-pressure switch trips out: check
condenser operations (condenser cleanliness,
fan operations, etc.). If above check out OK,
the problem may be due to either refrigerant
overcharging or the presence of a non-condensable
(e.g. air, moisture) in the circuit.

• The low-pressure switch trips out: check
evaporator operations (coil cleanliness, fan
operations, water flow, water filter, etc.), liquid
refrigerant flow and pressure drops (solenoid valve,
filter dryer, expansion valve, etc.), refrigerant charge.

• Low refrigerant charge: the correct refrigerant
charge is given by the liquid sight glass indication,
the condenser delta T in relation to the refrigerant
pressure tables (pressure-temperature), the
superheat and the sub-cooling, etc. (if additional
charge is deemed necessary, refer to the «Filling
the system» section).

• Compressor maximum short cycling: there
must be a minimum delay of five minutes between
two compressor starts. DCC recommends the
compressor should run at least two minutes after
each start, and between each stop and start must
be three minutes standstill. Only during pump
down cycle, the compressor may run much shorter
until the pumpdown pressure has been reached
or when safety devices will prohibit compressor
further operation.

12 - Maintenance

• Proper operations and maintenance of the
condensing units serve to prevent against
system-related problems.The following preventive
maintenance checks, to be performed at regular
intervals, are highly recommended:

- Control operating conditions (evaporating
temperature, condensing temperature,
compressor discharge temperature, temperature
difference on heat exchangers, superheat,
sub-cooling). These conditions must always
remain within compressor operation limits.

- Verify that safety devices are operational and
properly set.

- Check the compressor oil level and quality; this
step may include an acid test, humidity check,
spectrometer analysis, etc. whenever the oil
becomes discolored.

- Ensure that the circuit is leak tight.

- Verify the proper operation of heat exchangers
and, if necessary, clean them.

- Check that the fans are running free (without
vibration) and current draw on the compressor
motor as well as proper voltage balance
between phases.

- Change the filter dryer when necessary.

- Check that all electrical connections are still
adequately fastened.

- Make sure the condensing unit is clean and in
good working order; verify the absence of rust
or corrosion on components under pressure
and electrical connections.

- Make sure the refrigerant charge is suitable for
both winter and summer operation.

• Ensure that periodic in-service inspections
required by local regulations are performed.

13 - Replacement

Precaution must be taken when disconnecting
any components, cutting or drilling holes in the
tubing to ensure that no refrigerant under pressure
is present in the system.

The refrigerant shall not be discharged directly
into the atmosphere; rather, it must be removed
using approved reclamation techniques and
equipment and then safely stored, inaccordance
with applicable legislation.

The presence of refrigerant vapor can displace
air and lead to suffocation. Proper ventilation
is mandatory at all times when servicing the
equipment.

A condensing unit component change must be

carried out in compliance with local regulations.

• Make sure that the main power supply has been
switched off.

• Before replacement, it is necessary to determine
the cause of failure and implement remedial
action. If such analysis and repair are not performed,
repetitive failure may occur. Note that an oil acidity
test always proves helpful indiagnosis when
undertaking compressor replacement.

• Check that the replacement component has the
same electrical and refrigeration performance
characteristics as the original one.

• Whenever piping needs to be modified, please
refer to the «Safety measures prior to assembly»
section.

• For further details on replacement steps,refer to
the previous sections of this manual.

Note:

In the event of compressor motor failure,
flush and clean the entire circuit before replacing
the compressor in order to remove acids and
contaminants. Systematically install a new filter
dryer on the liquid line. Prior to this step (if
necessary), run the system for at least 2 hours
with anti-acid cartridges (in such instances, the
installation of a suction filter might also be required).
After an operating period of approximately 2 weeks,
check the level of oil acidity. If the oil acid test
proves positive, drain and replace the oil, replace
the anti-acid liquid line filter dryer cartridges and
the suction filter previously installed. Repeat oil
and filter dryer replacements until the system is
clean and acid-free.
When there is no longer any sign of acidity, replace
the anti-acid cartridges by the standard model and
remove the suction strainer cartridge as required.

14 - User advisory

Insist that all service operations only be
performed by qualified personnel.

The condensing unit tubing and compressor
surface temperatures may exceed 100°C (212°F)
and cause severe bodily burns.Special precaution
must be taken when working around the compressor
and refrigerant tubing. Moreover, a compressor
in operation can generate very cold surface
temperatures (as low as -45°C / -49°F), there by
exposing personnel to the risk of freezing burns.

Pressure inside the compressor and refrigerant
circuit can reach dangerously high levels (e.g.
abnormal operation, fire,…) leading to personnel
injury if suddenly released; therefore, never drill,
weld or cut the compressor shell and adjacent
tubing (release of liquid refrigerant can cause
flash freezing on exposed skin).

Even though fans are fitted with safety guard
it is recommended not to work on condenser
while fans are running.

Be aware that the product warranty may be
deemed null and void in the following cases:

• Modifications to the unit, unless approved by
Danfoss Commercial Compressors, absence of
nameplate, broken or dented components, shock
marks, etc...

• Compressor opened by the customer or returned
unsealed (i.e. open discharge or suction ports),

• Presence of rust or water inside the condensing
unit circuit,

• Addition of leak-detection fluid in the compressor
lubricant,

• Use of a refrigerant or lubricant not approved by
Danfoss Commercial Compressors.,

• Any deviation from recommended instructions
pertaining to installation, application or maintenance,

• Use in mobile applications (boats, trains, trucks,
etc.) or under explosive atmospheric conditions.

The date of production of the condensing unit is
indicated on the nameplate. Ensure that the model
and serial number information is always transmitted
with any claim filed regarding this product.

Instructions

6

8510198 P03-A © Danfoss Commercial Compressors 03/05

8510198 P03-A © Danfoss Commercial Compressors 03/05

Danfoss Commercial
Compressors

INSTRUCTIONS

Bluestar & Optyma

50 Hz L P H 60 Hz

MGM/MGZ 016-018-022-028 700 500 392 MGM/MGZ 018-022
HGM/HGZ 018 HGM/HGZ 018
LGZ 022 LGZ022

MGM/MGZ 032-036-040 800 600 442 MGM/MGZ 028-032-036-040
HGM/HGZ 022-028-032 - HGM036 HGM/HGZ 022-028
LGZ 028-040 LGZ028

MGM/MGZ 050-064-080 1000 700 555 MGM/MGZ 050-064
HGM/HGZ 040-050 -HGZ 036 HGM/HGZ 032-036-040-050
LGZ 044-050 LGZ044-050

MGM/MGZ 100-125-144-160 1200 800 671 MGM/MGZ 080-100-125-144-160
HGM/HGZ 064-080-100 HGM/HGZ 064-080-100
LGZ 088-100 LGZ088-100

HGM/HGZ 125-144-160 1500 870 975 HGM/HGZ 125-144-160

50 Hz

Comp-

LPH

resseur

MCZC030 MTZ18

500 620 451

MCZC038 MTZ22
MCZC048 MTZ28

MCZC054 MTZ32

630 650 605

MCZC060 MTZ36
MCZC068 MTZ40

MCZC086 MTZ51
MCZC096 MTZ57 755 700 656
MCZC108 MTZ65

MCZC121 MTZ73
MCZC136 MTZ81 900 900 759
MCZC171 MTZ100

MGZC215 MTZ125
MGZC242 MTZ144 1350 820 759
MGZC271 MTZ160

50 Hz

Comp-

LPH

resseur

LCHC048 NTZ048 500 620 451
LCHC068 NTZ068

LCHC096 NTZ096 630 650 605
LCHC108 NTZ108

LCHC136 NTZ136 755 700 656
LCHC215 NTZ215

900 900 759

LCHC271 NTZ271
LGHC048 NTZ048 700 500 392
LGHC068 NTZ068

LGHC096 NTZ096 800 600 442
LGHC108 NTZ108

LGHC136 NTZ136 1000 700 555
LGHC215 NTZ215

1200 800 671

LGHC271 NTZ271

L

P

H

L

P

H

CONDENSING UNITS

-25 -15 -5 5 10

50

45

35

25

15

HGM R22

-30 -20 -10 0 5

50

45

35

25

15

MGZ R404A - R507A

-15

-35

25 -30

50

45

35

25

15

LGZ R404A - R507A

-30 -20 -10 0

10

50

45

35

25

15

HGZ R404A - R507A

-15

-5

51520

50

45

35

25

15

HGZ R134a

Temperature évaporée (C°)

Temperature ambiante (C°)

SH = 10K
Surchauffe limitée

SH = 10K

Application MBP Application LBP

SH = 10 K
RGT = 20 °C

Fig. 1

50

45

35

25

MGZ R134a

-5

510

50

45

35

25

15

-25 -15 -5 5 10

MGM R22

15

-15

46

43

38

T° amb (°C)

32

28

-30 -25 -20 -15 -10 -5 0 5 10

46

43

Plage d'application MBP

Plage d'application LBP

T° evap (°C)

R404A/R507A

38

T° amb (°C)

32

27

-45 -40 -35 -30 -25 -20 -15 -10

R404A/R507A

T° evap (°C)

8

8510198 P03-A © Danfoss Commercial Compressors 03/05

Fig. 4

Fig. 3

Fig. 5

1 x hauteur de batterie Espace minimum : 2 x longueur

Fig. 2

Fig. 6

8 à 12 m/s
à capacité minimun

8 à 12 m/s
à capacité maximun

9

8510198 P03-A © Danfoss Commercial Compressors 03/05

SPDT+BP Signal

BP

BP+HP Signal

KP 15, 15A, 17W, 17B

When used acc. to UL regulations

BP

Point de
declenchement

Differentiel

Point de renclenchement

BP BP HP

Fil de cuivre uniquement
Couple de serrage 20 Nm

Point de
declenchement

Differentiel fixe

Point de
renclenchement

-1 bar (Pe)(30in.Hg)

BP, man. ResetBP, auto. Reset

Reset manuel

Reset manuel

Reset manuel

Reset manuel

Test manuel

Reset convertible
KP 15 060-1154, 060-1220, 060-1261, 060-1263, 060-1283

Reglage
d'usine

LR 112A AC3 16 A 400 V 12 W

AC1 16 A DC 11

AC1110 A 220 V

Point de
renclenchement

Differentiel fixe

Point de declenchement

HP

BP-man BP-auto BP-auto BP-man

HP-man HP-man HP-auto HP-auto

Reset convertible

KP 17B 060-539366, 060-539466

BP-auto
HP-man

BP-auto

HP-auto

BP

HP

BP