Carrier 30XW Manual

INSTALLATION, OPERATION AND
MAINTENANCE INSTRUCTIONS
Water-Cooled Screw Chillers
Water-sourced screw heat pumps
30XW/30XW-P«A»
30XWH/30XWHP«A»
Original instructions
Nominal cooling capacity: 273-1756 kW
Nominal heating capacity: 317-1989 kW
50 Hz

2
CONTENTS
1 - INTRODUCTION ..................................................................................................................................................................... 4
1.1 - Installation safety considerations ........................................................................................................................................... 4
1.2 - Equipment and components under pressure ........................................................................................................................ 5
1.3 - Maintenance safety considerations ........................................................................................................................................ 5
1.4 - Repair safety considerations................................................................................................................................................... 7
2 - PRELIMINARY CHECKS ...................................................................................................................................................... 8
2.1 - Check equipment received...................................................................................................................................................... 8
2.2 - Moving and siting the unit....................................................................................................................................................... 9
3 - DIMENSIONS, CLEARANCES........................................................................................................................................... 10
3.1 - 30XW--/30XWH- 254-852 – 30XW-P/30XWHP 512-862................................................................................................... 10
3.2 - 30XW--/30XWH- 1002-1552 – 30XW-P/30XWHP 1012-1464........................................................................................... 11
3.3 - 30XW--/30XWH- 1652-1702 – 30XW-P/30XWHP 1612-1762........................................................................................... 12
4 - PHYSICAL AND ELECTRICAL DATA............................................................................................................................ 13
4.1 - Physical data, units without options 150, 5 and 6................................................................................................................ 13
4.2 - Electrical data, units without options 150, 5 and 6 ............................................................................................................. 14
4.3 - Short-circuit stability current for all units ........................................................................................................................... 15
4.4 - Compressor electrical data 30XW........................................................................................................................................ 15
4.5 - Compressor usage per circuit (A, B)....................................................................................................................................15
5 - ELECTRICAL CONNECTION............................................................................................................................................ 16
5.1 - Power supply........................................................................................................................................................................... 16
5.2 - Voltage phase imbalance (%) ............................................................................................................................................... 16
5.3 - Power connection/disconnect switch.................................................................................................................................... 16
5.4 - Recommended wire sections ................................................................................................................................................ 16
5.5 - Power cable entry................................................................................................................................................................... 17
5.6 - Field control wiring ................................................................................................................................................................ 17
5.7 - 24 and 230 V power reserve for the user ............................................................................................................................. 18
6 - APPLICATION DATA ........................................................................................................................................................... 18
6.1 - Operating limits for 30XW units .......................................................................................................................................... 18
6.2 - Minimum chilled water ow ................................................................................................................................................. 18
6.3 - Maximum chilled water ow................................................................................................................................................. 18
6.4 - Condenser water ow rate ................................................................................................................................................... 18
6.5 - Standard and optional number of water passes.................................................................................................................. 19
6.6 - Evaporator and condenser water ow rates ....................................................................................................................... 19
6.7 - Variable ow evaporator ....................................................................................................................................................... 19
6.8 - System minimum water volume ........................................................................................................................................... 19
6.9 - Evaporator pressure drop curves ......................................................................................................................................... 20
6.10 - Condenser pressure drop curves ........................................................................................................................................ 20
7 - WATER CONNECTIONS...................................................................................................................................................... 21
7.1 - Operating precautions ........................................................................................................................................................... 21
7.2 - Water connections .................................................................................................................................................................. 22
7.3 - Flow control ............................................................................................................................................................................ 22
7.4 - Evaporator and condenser water box bolt tightening ....................................................................................................... 22
7.5 - Operation of two units in master/slave mode ..................................................................................................................... 23
8 - HEAT MACHINE UNITS 30XWH- AND 30XWHP ........................................................................................................ 23
8.1 - Physical data for Heat Machine units .................................................................................................................................. 23
8.2 - Electrical data for Heat Machine units................................................................................................................................ 23
8.3 - Dimensions and clearances for Heat Machine units.......................................................................................................... 23
8.4 - Operating range for Heat Machine units ............................................................................................................................ 23
8.5 - Operating modes for Heat Machine units........................................................................................................................... 23

3
The cover photograph is for illustrative purposes only and is not part of any offer for sale or contract.
This manual applies to the following four 30XW unit types:
• 30XW-- Standard-efciency units
• 30XW-P High-efciency units
and
• 30XWH- Heat Machine standard-efciency units
• 30XWHP Heat Machine high-efciency units
For the operation of the control please refer to the 30XA/30XW-Pro-Dialog control manual.
9 - OPTION FOR HIGH CONDENSING TEMPERATURES (OPTION 150) ................................................................ 24
9.1 - Physical data, units with option 150 ..................................................................................................................................... 24
9.2 - Electrical data, units with option 150................................................................................................................................... 25
9.3 - Dimensions and clearances, units with option 150 ............................................................................................................. 26
9.4 - Operating limits, units with option 150 ................................................................................................................................ 26
10 - MEDIUM TEMPERATURE (OPTION 5) AND LOW TEMPERATURE (OPTION 6) GLYCOL SOLUTION
OPTIONS ............................................................................................................................................................................... 26
10.1 - Physical data, units with options 5 and 6 ........................................................................................................................... 26
10.2 - Electrical data, units with options 5 and 6......................................................................................................................... 27
10.3 - Dimensions, clearances, units with option 5 and 6............................................................................................................ 27
10.4 - Operating range, units with options 5 and 6...................................................................................................................... 27
10.5 - Minimum recommended evaporator ow rate with options 5 and 6............................................................................. 27
10.6 - Nominal evaporator pressure drop with options 5 and 6 ................................................................................................ 27
11 - MAJOR SYSTEM COMPONENTS AND OPERATION DATA ................................................................................... 28
11.1 - Direct-drive twin-screw compressor with variable capacity slide valve ........................................................................ 28
11.2 - Pressure vessels..................................................................................................................................................................... 28
11.3 - High-pressure safety switch ................................................................................................................................................ 29
11.4 - Electronic expansion valve (EXV) .................................................................................................................................... 29
11.5 - Moisture indicator................................................................................................................................................................ 29
11.6 - Filter drier ............................................................................................................................................................................. 29
11.7 - Sensors................................................................................................................................................................................... 29
12 - OPTIONS ............................................................................................................................................................................... 30
13 - STANDARD MAINTENANCE.......................................................................................................................................... 31
13.1 - Level 1 maintenance ............................................................................................................................................................ 31
13.2 - Level 2 maintenance ............................................................................................................................................................ 31
13.3 - Level 3 (or higher) maintenance ........................................................................................................................................ 31
13.4 - Tightening of the electrical connections ............................................................................................................................ 31
13.5 - Tightening torques for the main bolts and screws ............................................................................................................ 32
13.6 - Evaporator and condenser maintenance........................................................................................................................... 32
13.7 - Compressor maintenance.................................................................................................................................................... 32
14 - START-UP CHECKLIST FOR 30XW LIQUID CHILLERS (USE FOR JOB FILE) .............................................. 34

4

The 30XW Aquaforce units are designed to cool water for
the air conditioning of buildings and industrial procsses.
Prior to the initial start-up of the 30XW units, the people
involved in the on-site installation, start-up, operation, and
maintenance of this unit should be thoroughly familiar with
these instructions and the specic project data for the
installation site.
The 30XW liquid chillers are designed to provide a very high
level of safety during installation, start-up, operation and
maintenance. They will provide safe and reliable service
when operated within their application range.
They are designed for an operating life of 15 years by
assuming a 75% utilisation factor; that is approximately
100,000 operating hours.
This manual provides the necessary information to fami-
liarize yourself with the control system before performing
start-up procedures. The procedures in this manual are
arranged in the sequence required for machine installation,
start-up, operation and maintenance.
Always ensure that all required safety measures are followed,
including those in this document, such as: wearing protec-
tive clothing (gloves, safety glasses and shoes) using appro-
priate tools, employing qualied and skilled technicians
(electricians, refrigeration engineers) and following local
regulations.
To nd out, if these products comply with European
directives (machine safety, low voltage, electromagnetic
compatibility, equipment under pressure etc.) check the
declarations of conformity for these products.

Access to the unit must be reserved to authorised personnel,
qualied and trained in monitoring and maintenance. The
access limitation device must be installed by the customer
(e.g. cut-off, enclosure).
After the unit has been received, when it is ready to be
installed or reinstalled, and before it is started up, it must be
inspected for damage. Check that the refrigerant circuit(s)
is (are) intact, especially that no components or pipes have
shifted (e.g. following a shock). If in doubt, carry out a leak
tightness check and verify with the manufacturer that the
circuit integrity has not been impaired. If damage is detected
upon receipt, immediately le a claim with the shipping
company.
Carrier strongly recommends employing a specialised
company to unload the machine.
It is compulsory to wear personal protection equipment.
Do not remove the skid or the packaging until the unit is
in its nal position. These units can be moved with a fork
lift truck, as long as the forks are positioned in the right
place and direction on the unit.
The units can also be lifted with slings, using only the
designated lifting points marked on the unit.
Use slings or lifting beams with the correct capacity, and
always follow the lifting instructions on the certied
drawings supplied with the unit. Do not tilt the unit more
than 15°.
Safety is only guaranteed, if these instructions are carefully
followed. If this is not the case, there is a risk of material
deterioration and injuries to personnel.
Never cover any protection devices.
This applies to the relief valves (if used) in the refrigerant
or heat transfer medium circuits, the fuse plugs and the
pressure switches.
Ensure that the valves are correctly installed, before
operating the unit.
Classication and control
In accordance with the Pressure Equipment Directive and
national usage monitoring regulations in the European
Union the protection devices for these machines are
classied as follows:

(1)

(2)

High pressure switch x
External relief valve(3) x
Rupture disk x
Fuse plug x

External relief valve (4) (4)
(1) Classiedforprotectioninnormalservicesituations.
(2) Classiedforprotectioninabnormalservicesituations.Theseaccessoriesare
sizedforreswithathermalowof10kW/m².Nocombustiblemattershould
beplacedwithin6.5moftheunit.
(3) Theinstantaneousover-pressurelimitationof10%oftheoperatingpressure
doesnotapplytothisabnormalservicesituation.
 Thecontrolpressurecanbehigherthantheservicepressure.Inthiscase
either the design temperature or the high-pressure switch ensures that the
servicepressureisnotexceededinnormalservicesituations.
(4) Theselectionofthesedischargevalvesmustbemadebythepersonnel
responsibleforcompletingthehydraulicinstallation.
If the relief valves are installed on a change-over valve,
this is equipped with a relief valve on each of the two
outlets. Only one of the two relief valves is in operation,
the other one is isolated. Never leave the change-over
valve in the intermediate position, i.e. with both ways
open bring the actuator in abutment, front or back
according to the outlet to isolate. If a relief valve is
removed for checking or replacement please ensure that
there is always an active relief valve on each of the
change-over valves installed in the unit.
All factory-installed relief valves are lead-sealed to prevent
any calibration change.
The external relief valves and the fuses are designed and
installed to ensure damage limitation in case of a re.
In accordance with the regulations applied for the design,
the European directive on equipment under pressure and

5
in accordance with the national usage regulations:
• These relief valves and fuses are not safety accessories
but damage limitation accessories in case of a re,
• The high pressure switches are the safety accessories.
The relief valve must only be removed if the re risk is
fully controlled and after checking that this is allowed by
local regulations and authorities. This is the responsibility
of the operator.
When the unit is subjected to re, safety devices prevent
rupture due to over-pressure by releasing refrigerant. The
uid may then be decomposed into toxic residues when
subjected to the ame:
• Stay away from the unit
• Set up warnings and recommendations for personnel
in charge to stop the re.
• Fire extinguishers appropriate to the system and the
refrigerant type must be easily accessible.
The external relief valves must in principle be connected
to discharge pipes for units installed in a room. Refer to
the installation regulations, for example those of European
standards EN 378 and EN 13136.
They include a sizing method and examples for congura-
tion and calculation. Under certain conditions these stan-
dards permit connection of several valves to the same
discharge pipe. Note: Like all other standards these EN
standards are available from national standards organi-
sations.
These pipes must be installed in a way that ensures that
people and property are not exposed to refrigerant leaks.
These uids may be diffused in the air, but far away from
any building air intake, or they must be discharged in a
quantity that is appropriate for a suitably absorbing
environment.
It is recommended to install an indicating device to show
if part of the refrigerant has leaked from the valve. The
presence of oil at the outlet orice is a useful indicator
that refrigerant has leaked. Keep this orice clean to
ensure that any leaks are obvious.
The calibration of a valve that has leaked is generally
lower than its original calibration. The new calibration
may affect the operating range. To avoid a nuisance
tripping or leaks, replace or re-calibrate the valve.
Periodic check of the relief valves: See paragraph 1.3
“Maintenance safety considerations”.
Provide a drain in the discharge circuit, close to each
relief valve, to avoid an accumulation of condensate or
rain water.
Ensure good ventilation, as accumulation of refrigerant
in an enclosed space can displace oxygen and cause
asphyxiation or explosions.
Inhalation of high concentrations of vapour is harmful
and may cause heart irregularities, unconsciousness, or
death. Vapour is heavier than air and reduces the amount
of oxygen available for breathing. These products cause
eye and skin irritation. Decomposition products are
hazardous.

The units are intended to be stored and operate in an
environment where the ambient temperature must not be
less than the lowest allowable temperature indicated on
the nameplate. See section “11.2 - Pressure vessels”.

Carrier recommends the following drafting for a logbook
(the table below should not be considered as reference
and does not involve Carrier responsibility):
 







  (1)
(1) Maintenance,repairs,regularverications(EN378),leakage,etc.
Engineers working on the electric or refrigeration compo-
nents must be authorized, trained and fully qualied to do so.
All refrigerant circuit repairs must be carried out by a trained
person, fully qualied to work on these units. He must have
been trained and be familiar with the equipment and the
installation. All welding operations must be carried out by
qualied specialists.
The insulation must be removed and heat generation must
be limited by using a wet cloth.
Any manipulation (opening or closing) of a shut-off
valve must be carried out by a qualied and authorised
engineer. These procedures must be carried out with the
unit shut-down.
NOTE: The unit must never be left shut down with the
liquid line valve closed, as liquid refrigerant can be trapped
between this valve and the expansion device. (This valve
is situated on the liquid line before the lter drier box.)
Equip the engineers that work on the unit as follows:

(1)

 
 (2)
Protective gloves,
eye protection,
safety shoe,
protectiveclothing.
Fuse plug
x x x
Earprotection. x x
Filteringrespirator. x
(1) WerecommendtofollowtheinstructionsinEN378-3.
(2) PerformedinthepresenceofA1refrigerantaccordingtoEN378-1.
Never work on a unit that is still energized.
Never work on any of the electrical components, until the
general power supply to the unit has been cut using the
disconnect switch(es) in the control box(es).

6
9. Contact your local dealer or installer if you have any
questions.
• During the life-time of the system, inspection and tests
must be carried out in accordance with national
regulations.
Protection device checks (EN 378):
The safety devices must be checked on site once a year for
safety devices (see chapter 11.3 - High-pressure safety
switch), and every ve years for external overpressure
devices (external relief valves).
The company or organisation that conducts a pressure
switch test shall establish and implement a detailed
procedure to x:
- Safety measures
- Measuring equipment calibration
- Validating operation of protective devices
- Test protocols
- Recommissioning of the equipment.
Consult Carrier Service for this type of test. Carrier
mentions here only the principle of a test without
removing the pressure switch:
- Verify and and record the set-points of pressure
switches and relief devices (valves and possible
rupture discs)
- Be ready to switch-off the main disconnect switch
of the power supply if the pressure switch does
not trigger (avoid over-pressure or excess gas in
case of valves on the high-pressure side with the
recovery condensers)
- Connect a calibrated pressure gauge (the values
displayed on the user interface may be inaccurate
in an instant reading because of the scanning
delay applied in the control)
- Neutralise the HP soft value
- Cut the condenser water ow
- Check the cut-off value
- Reactivate HP soft value
- Reactivate manually HP switch.
CAUTION: If the test leads to replacing the pressure
switch, it is necessary to recover the refrigerant charge,
these pressure switches are not installed on automatic
valves (Schraeder type).
At least once a year thoroughly inspect the protection
devices (valves). If the machine operates in a corrosive
environment, inspect the protection devices more frequently.
Ensure regularly that the vibration levels remain accep-
table and close to those at the initial unit start-up.
Before opening a refrigerant circuit, purge and consult the
pressure gauges.
Change the refrigerant when there are equipment failures,
following a procedure such as the one described in
NF E29-795 or carry out a refrigerant analysis in a
specialist laboratory.
If any maintenance operations are carried out on the unit,
lock the power supply circuit in the open position ahead
of the machine.
If the work is interrupted, always ensure that all circuits
are still deenergized before resuming the work.
ATTENTION: Even if the unit has been switched off, the
power circuit remains energized, unless the unit or circuit
disconnect switch is open. Refer to the wiring diagram for
further details. Attach appropriate safety labels.
Operating checks:
IMPORTANT INFORMATION REGARDING THE
REFRIGERANT USED:
• This product contains uorinated greenhouse gas
covered by the Kyoto protocol
Fluid type: R134a
Global Warming Potential (GWP): 1430
CAUTION:
1. Any intervention on the refrigerant circuit of this
product should be performed in accordance with the
applicable legislation. In the EU, the regulation is
called F-Gas, N°517/2014.
2. Ensure that the refrigerant is never released to the
atmosphere during installation, maintenance or
equipment disposal.
3. The deliberate gas release into the atmosphere is not
allowed.
4. If a refrigerant leak is detected, ensure that it is
stopped and repaired as quickly as possible.
5. Only a qualied and certied personnel can perform
installation operations, maintenance, refrigerant
circuit leak test as well as the equipment disposal
and the refrigerant recovering.
6. The gas recovery for recycling, regeneration or
destruction is at customer charge.
7. Periodic leak tests have to be carried out by the
customer or by third parties. The EU regulation set
the periodicity here after:
SystemWITHOUT
leakage detection No check 12 months 6 months 3 months
SystemWITHleakage
detection No check 24 months 12 months 6 months
Refrigerantcharge/circuit
(CO2equivalent) < 5 tons 5≤charge<
50 tons
50≤charge
< 500 tons
Charge >
500 tons*
Refrigerant
charge/
Circuit (kg)
R134A
(GWP 1430)
Charge <
3.5kg
3.5≤charge
<34.9kg
34.9≤
charge <
349.7kg
Charge >
349.7kg
R407C
(GWP 1774)
Charge <
2.8kg
2.8≤charge
<28.2kg
28.2≤
charge <
281.9kg
Charge >
281.9kg
R410A
(GWP 2088)
Charge <
2.4kg
2.4≤charge
<23.9kg
23.9≤
charge <
239.5kg
Charge >
239.5kg
HFO’s:
R1234ze No requirement
*From01/01/2017,unitsmustbeequippedwithaleakagedetectionsystem
8. A logbook must be established for equipments
subject to periodic leak tests. It should contain the
quantity and the type of uid present within the
installation (added and recovered), the quantity of
recycled uid, regenerated or destroyed, the date and
output of the leak test, the designation of the
operator and its belonging company, etc.

7
the pressures given on the unit name plate.
Do not use air for leak testing. Use only refrigerant or dry
nitrogen.
Do not unweld or amecut the refrigerant lines or any
refrigerant circuit component until all refrigerant (liquid
and vapour) has been removed from chiller. Traces of
vapour should be displaced with dry air nitrogen. Refrige-
rant in contact with an open ame produces toxic gases.
The necessary protection equipment must be available,
and appropriate re extinguishers for the system and the
refrigerant type used must be within easy reach.
Do not siphon refrigerant.
Avoid contact with liquid refrigerant on the skin or
splashing it into the eyes. Use safety goggles. Wash any
spills from the skin with soap and water. If liquid refrigerant
enters the eyes, immediately and abundantly ush the eyes
with water and consult a doctor.
The accidental releases of the refrigerant, due to small
leaks or signicant discharges following the rupture of a
pipe or an unexpected release from a relief valve, can
cause frostbites and burns to personnel exposed. Do not
ignore such injuries. Installers, owners and especially
service engineers for these units must:
- Seek medical attention before treating such injuries.
- Have access to a rst-aid kit, especially for treating
eye injuries.
We recommend to apply standard EN 378-3 Annex 3.
Never apply an open ame or live steam to a refrigerant
container. Dangerous overpressure can result. If it is
necessary to heat refrigerant, use only warm water.
During refrigerant removal and storage operations follow
applicable regulations. These regulations, permitting
condi-tioning and recovery of halogenated hydrocarbons
under optimum quality conditions for the products and
optimum safety conditions for people, property and the
environment are described in standard NF E29-795.
Any refrigerant transfer and recovery operations must be
carried out using a transfer unit. A 3/8” SAE connector on
the manual liquid line valve is supplied with all units for
connection to the transfer station. The units must never be
modied to add refrigerant and oil charging, removal and
purging devices. All these devices are provided with the
units. Please refer to the certied dimensional drawings for
the units.Do not re-use disposable (non-returnable)
cylinders or attempt to rell them. It is dangerous and
illegal. When cylinders are empty, evacuate the remaining
gas pressure, and move the cylinders to a place designated
for their recovery. Do not incinerate.
ATTENTION: Only use refrigerant R134a, in accordance
with 700 AHRI (Air conditioning, Heating and Refrige-
ration Institute). The use of any other refrigerant may
expose users and operators to unexpected risks.
If the refrigerant circuit remains open for longer than a day
after an intervention (such as a component replacement),
the openings must be plugged and the circuit must be
charged with nitrogen (inertia principle). The objective is
to prevent penetration of atmospheric humidity and the
resulting corrosion on the internal walls and on non-
protected steel surfaces.

It is compulsory to wear personal protection equipment.
The insulation must be removed and warming up must be
limited by using a wet cloth.
Before opening the unit always ensure that the circuit has
been purged.
If work on the evaporator is required, ensure that the piping
from the compressor is no longer pressurised (as the valve
is not leaktight in the compressor direction.)
All installation parts must be maintained by the personnel in
charge, in order to avoid material deterioration and injuries
to people. Faults and leaks must be repaired immediately.
The authorized technician must have the responsibility to
repair the fault immediately. Each time repairs have been
carried out to the unit, the operation of the protection devices
must be re-checked.
Comply with the regulations and recommendations in unit
and HVAC installation safety standards, such as: EN 378,
ISO 5149, etc.
If a leak occurs or if the refrigerant becomes contaminated
(e.g. by a short circuit in a motor) remove the complete
charge using a recovery unit and store the refrigerant in
mobile containers.
Repair the leak detected and recharge the circuit with the
total R-134a charge, as indicated on the unit name plate.
Certain parts of the circuit can be isolated. Only charge
liquid refrigerant R-134a at the liquid line.
Ensure that you are using the correct refrigerant type
before recharging the unit.
Charging any refrigerant other than the original charge
type (R-134a) will impair machine operation and can even
lead to a destruction of the compressors. The compressors
operating with this refrigerant type are lubricated with a
synthetic polyolester oil.
RISK OF EXPLOSION:
Do not use oxygen to purge lines or to pressurize a machine
for any purpose. Oxygen gas reacts violently with oil,
grease, and other common substances.
Never exceed the specied maximum operating pressures.
Verify the allowable maximum high- and low-side test
pressures by checking the instructions in this manual and

8


• Inspect the unit for damage or missing parts. If damage
is detected, or if shipment is incomplete, immediately
le a claim with the shipping company.
• Conrm that the unit received is the one ordered.
Compare the name plate data with the order.
• The unit name plate must include the following
information:
- Version number
- Model number
- CE marking
- Serial number
- Year of manufacture and test date
- Fluid being transported
- Refrigerant used and refrigerant class
- Refrigerant charge per circuit
- Containment uid to be used
- PS: Min./max. allowable pressure (high and low
pressure side)
- TS: Min./max. allowable temperature (high and
low pressure side)
- Pressure switch cut-out pressures
- Unit leak test pressure
- Voltage, frequency, number of phases
- Maximum current drawn
- Maximum power input
- Unit net weight
• Conrm that all accessories ordered for on-site
installation have been delivered, and are complete
and undamaged.
The unit must be checked periodically during its whole
operating life to ensure that no shocks (handling accessories,
tools etc.) have damaged it. If necessary, the damaged parts
must be repaired or replaced. See also chapter 13 “Standard
maintenance”.
Do not attempt to remove refrigerant circuit components
or ttings, while the machine is under pressure or while it
is running. Be sure pressure is at 0 kPa before removing
components or opening a circuit.
Do not attempt to repair or recondition any safety devices
when corrosion or build-up of foreign material (rust, dirt,
scale, etc.) is found within the valve body or mechanism.
If necessary, replace the device. Do not install relief valves
in series or backwards.
ATTENTION: No part of the unit must be used as a
walk-way, rack or support. Periodically check and repair
or if necessary replace any component or piping that
shows signs of damage.
The refrigerant lines can break under the weight and
release refrigerant, causing personal injury.
Do not climb on a machine. Use a platform, or staging to
work at higher levels.
Use mechanical lifting equipment (crane, hoist, winch, etc.)
to lift or move heavy components. For lighter components,
use lifting equipment when there is a risk of slipping or
losing your balance.
Use only original replacement parts for any repair or
com-ponent replacement. Consult the list of replacement
parts that corresponds to the specication of the original
equip-ment.
Do not drain water circuits containing industrial brines,
without informing the technical service department at the
installation site or a competent body rst.
Close the entering and leaving water shutoff valves and
purge the unit water circuit, before working on the compo-
nents installed on the circuit (screen lter, pump, water
ow switch, etc.).
Do not loosen the water box bolts until the water boxes
have been completely drained.
Periodically inspect all valves, ttings and pipes of the
refrigerant and hydraulic circuits to ensure that they do
not show any corrosion or any signs of leaks.
It is recommended to wear ear defenders, when working
near the unit and the unit is in operation.

9

2.2.1 - Moving
See chapter 1.1 “Installation safety considerations”.
CAUTION: Only use slings at the designated lifting
points which are marked on the unit.
2.2.2 - Siting the unit
Always refer to the chapter “Dimensions and clearances”
to conrm that there is adequate space for all connections
and service operations. For the centre of gravity coordinates,
the position of the unit mounting holes, and the weight
distribution points, refer to the certied dimensional
drawing supplied with the unit.
Typical applications of these units are in refrigeration
systems, and they do not require earthquake resistance.
Earthquake resistance has not been veried.
Before siting the unit check that:
• the permitted loading at the site is adequate or that
appropriate strenghtening measures have been taken.
• the unit is installed level on an even surface (maximum
tolerance is 5 mm in both axes).
• there is adequate space above the unit for air ow and
to ensure access to the components.
• the number of support points is adequate and that they
are in the right places.
• the location is not subject to ooding.
CAUTION: Lift and set down the unit with great care.
Tilting and jarring can damage the unit and impair unit
operation.
2.2.3 - Checks before system start-up
Before the start-up of the refrigeration system, the complete
installation, including the refrigeration system must be
veried against the installation drawings, dimensional
drawings, system piping and instrumentation diagrams and
the wiring diagrams.
During the installation test national regulations must be
followed. If no national regulation exists, standard EN 378
can be used as a guide.
External visual installation checks:
• Ensure that the machine is charged with refrigerant.
Verify on the unit nameplate that the ‘uid being
transported’ is R-134a and is not nitrogen.
• Compare the complete installation with the refrigeration
system and power circuit diagrams.
• Check that all components comply with the design
specications.
• Check that all protection documents and equipment
provided by the manufacturer (dimensional drawings,
P&ID, declarations etc.) to comply with the regulations
are present.
• Verify that the environmental safety and protection and
devices and arrangements provided by the manufacturer
to comply with the regulations are in place.
• Verify that all document for pressure containers, certi-
cates, name plates, les, instruction manuals provided
by the manufacturer to comply with the regulations are
present.
• Verify the free passage of access and safety routes.
• Check that ventilation in the plant room is adequate.
• Check that refrigerant detectors are present.
• Verify the instructions and directives to prevent the
deliberate removal of refrigerant gases that are harmful
to the environment.
• Verify the installation of connections.
• Verify the supports and xing elements (materials,
routing and connection).
• Verify the quality of welds and other joints.
• Check the protection against mechanical damage.
• Check the protection against heat.
• Check the protection of moving parts.
• Verify the accessibility for maintenance or repair and
to check the piping.
• Verify the status of the valves.
• Verify the quality of the thermal insulation and of the
vapour barriers.

10
Condenser
Evaporator

3.1 - 30XW--/30XWH- 254-852 30XW-P/30XWHP 512-862

Alldimensionsaregiveninmm.
Required clearances for maintenance
Recommendedspacefortuberemoval
Water inlet
Water outlet
Power supply connection
NOTES:
• Drawings are not contractually binding. Before design-
ing an installation, consult the certied dimensional
drawings supplied with the unit or available on request.
• For the positioning of the xing points, weight distribu-
tion and centre of gravity coordinates please refer to
the dimensional drawings.

A B   E F G

254 1567 800 928 2724 141.3 141.3 2600
304 1567 800 928 2724 141.3 141.3 2600
354 1567 800 928 2724 141.3 141.3 2600
402 1693 810 936 2742 141.3 141.3 2600
452 1693 810 936 2742 141.3 141.3 2600
552 1693 810 936 2742 141.3 141.3 2600
602 1693 810 936 2742 141.3 141.3 2600
652 1848 968 1044 3059 168.3 168.3 2800
702 1848 968 1044 3059 168.3 168.3 2800
802 1848 968 1044 3059 168.3 168.3 2800
852 1898 828 1044 2780 219.1 168.3 2600

512 1743 968 936 3059 168.3 168.3 2800
562 1743 968 936 3059 168.3 168.3 2800
712 1950 1083 1065 3290 219.1 219.1 3100
812 1950 1083 1070 3290 219.1 219.1 3100
862 1950 1083 1070 3290 219.1 219.1 3100

254 1567 800 928 2724 141.3 141.3 2600
304 1567 800 928 2724 141.3 141.3 2600
354 1567 800 928 2724 141.3 141.3 2600
402 1693 810 936 2742 141.3 141.3 2600
452 1693 810 936 2742 141.3 141.3 2600
552 1693 810 936 2742 141.3 141.3 2600
602 1693 810 936 2742 141.3 141.3 2600
652 1868 968 1090 3059 168.3 168.3 2800
702 1868 968 1090 3059 168.3 168.3 2800
802 1868 968 1090 3059 168.3 168.3 2800
852 1920 828 1090 2780 168.3 219.1 2600

512 1743 968 936 3059 168.3 168.3 2800
562 1743 968 936 3059 168.3 168.3 2800
712 1970 1083 1105 3290 219.1 219.1 3100
812 1970 1083 1105 3290 219.1 219.1 3100
862 1970 1083 1105 3290 219.1 219.1 3100
1
2

11
Condenser
Evaporator
3.2 - 30XW--/30XWH- 1002-1552 30XW-P/30XWHP 1012-1464
NOTES:
• Drawings are not contractually binding. Before design-
ing an installation, consult the certied dimensional
drawings supplied with the unit or available on request.
• For the positioning of the xing points, weight distribu-
tion and centre of gravity coordinates please refer to
the dimensional drawings.

Alldimensionsaregiveninmm.
Required clearances for maintenance
Recommendedspacefortuberemoval
Water inlet
Water outlet
Power supply connection

A B   E F G

1002 1870 950 1036 4025 219.1 168.3 3800
1052 1870 950 1036 4025 219.1 168.3 3800
1152 1925 950 1036 4025 219.1 219.1 3800
1252 2051 1512 1162 4730 219.1 219.1 4500
1352 2051 1512 1162 4730 219.1 219.1 4500
1452 2051 1512 1162 4730 219.1 219.1 4500
1552 2051 1512 1162 4730 219.1 219.1 4500

1012 1997 1512 1039 4730 219.1 219.1 4500
1162 1997 1512 1039 4730 219.1 219.1 4500
1314 2051 1512 1162 4730 219.1 219.1 4500
1464 2051 1512 1162 4730 219.1 219.1 4500

1002 1870 950 1036 4025 219.1 168.3 3800
1052 1870 950 1036 4025 219.1 168.3 3800
1154 2925 950 1036 4025 219.1 219.1 3800
1252 2071 1512 1202 4730 219.1 219.1 4500
1352 2071 1512 1202 4730 219.1 219.1 4500
1452 2071 1512 1202 4730 219.1 219.1 4500
1552 2071 1512 1202 4730 219.1 219.1 4500

1012 1997 1512 1039 4730 219.1 219.1 4500
1162 1997 1512 1039 4730 219.1 219.1 4500
1314 2071 1512 1202 4730 219.1 219.1 4500
1464 2071 1512 1202 4730 219.1 219.1 4500
1
2

12
Condenser
Evaporator
3.3 - 30XW--/30XWH- 1652-1702 30XW-P/30XWHP 1612-1762
NOTES:
• Drawings are not contractually binding. Before design-
ing an installation, consult the certied dimensional
drawings supplied with the unit or available on request.
• For the positioning of the xing points, weight distribu-
tion and centre of gravity coordinates please refer to
the dimensional drawings.

Alldimensionsaregiveninmm.
Required clearances for maintenance
Recommendedspacefortuberemoval
Water inlet
Water outlet
Power supply connection

A B   E F G

1652 1515 1568 1902 4790 219.1 219.1 4500
1702 1515 1568 1902 4790 219.1 219.1 4500

1612 1562 1591 2129 4832 273.1 273.1 4600
1762 1562 1591 2129 4832 273.1 273.1 4600

1652 1535 1568 1947 4790 219.1 219.1 4500
1702 1535 1568 1947 4790 219.1 219.1 4500

1612 1585 1591 2174 4832 273.1 273.1 4600
1762 1585 1591 2174 4832 273.1 273.1 4600
1
2

13



30XW--/30XWH 254 304 354 402 452 552 602 652 702 802 852 1002 1052 1154 1252 1352 1452 1552 1652 1702

Sound power level(1) dB(A) 95 95 95 99 99 99 99 99 99 99 99 102 102 102 102 102 102 102 102 102
Sound pressure level at 1 m(2) dB(A) 78 78 78 82 82 82 82 82 82 82 82 84 84 84 83 83 83 83 83 83
(3)
Sound power level(1) dB(A) - - - 96 96 96 96 96 96 96 96 99 99 99 99 99 99 99 99 99
Sound pressure level at 1 m(2) dB(A) - - - 78 78 78 78 78 78 78 78 80 80 80 80 80 80 80 80 80

Length mm 2724 2724 2724 2741 2741 2741 2741 3059 3059 3059 2780 4025 4025 4025 4730 4730 4730 4730 4790 4790
Width mm 928 928 928 936 936 936 936 1040 1040 1040 1042 1036 1036 1036 1156 1156 1156 1156 1902 1902
Height mm 1567 1567 1567 1692 1692 1692 1692 1848 1848 1848 1898 1870 1870 1925 2051 2051 2051 2051 1515 1515
(4) kg 2017 2036 2072 2575 2575 2613 2644 3247 3266 3282 3492 5370 5408 5698 7066 7267 7305 7337 8681 8699
 Semi-hermetic06Tscrewcompressors,50r/s
Circuit A 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
Circuit B - - - - - - - - - - - 1 1 1 1 1 1 1 1 1
(4) R-134a
Circuit A kg 84 80 78 82 82 82 82 145 135 125 158 85 85 105 120 115 110 105 195 195
teqCO2120 114 112 117 117 117 117 207 193 179 226 122 122 150 172 164 157 150 279 279
Circuit B kg - - - - - - - - - - - 85 85 105 120 115 110 105 195 195
teqCO2- - - - - - - - - - - 122 122 150 172 164 157 150 279 279
 SW220
Circuit A l 23.5 23.5 23.5 32 32 32 32 36 36 36 36 32 32 32 36 36 36 36 36 36
Circuit B l - - - - - - - - - - - 32 32 32 32 36 36 36 36 36
 TouchPilot,electronicexpansionvalves(EXV)
Minimum capacity (5) %15 15 15 15 15 15 15 15 15 15 15 10 10 10 10 10 10 10 10 10
 Multi-pipeoodedtype
Net water volume l 50 56 61 70 70 70 70 109 109 109 98 182 182 205 301 301 301 301 354 354
Waterconnections(Victaulic) in 5 5 5 5 5 5 5 6 6 6 6 6 6 8 8 8 8 8 8 8
Drainandventconnections(NPT) in 3/8 3/8 3/8 3/8 3/8 3/8 3/8 3/8 3/8 3/8 3/8 3/8 3/8 3/8 3/8 3/8 3/8 3/8 3/8 3/8
Max.water-sideoperatingpressure kPa 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000
 Multi-pipeoodedtype
Net water volume l 55 55 55 76 76 76 76 109 109 109 137 193 193 193 340 340 340 340 426 426
Waterconnections(Victaulic) in 5 5 5 5 5 5 5 6 6 6 8 8 8 8 8 8 8 8 8 8
Drainandventconnections(NPT) in 3/8 3/8 3/8 3/8 3/8 3/8 3/8 3/8 3/8 3/8 3/8 3/8 3/8 3/8 3/8 3/8 3/8 3/8 3/8 3/8
Max.water-sideoperatingpressure kPa 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000

30XW-P/30XWHP 512 562 712 812 862 1012 1162 1314 1464 1612 1762

Sound power level(1) dB(A) 99 99 99 99 99 102 102 102 102 102 102
Sound pressure level at 1 m(2) dB(A) 82 82 81 81 81 83 83 83 83 83 83
(3)
Sound power level(1) dB(A) 96 96 96 96 96 99 99 99 99 99 99
Sound pressure level at 1 m(2) dB(A) 78 78 78 78 78 80 80 80 80 80 80

Length mm 3059 3059 3290 3290 3290 4730 4730 4730 4730 4832 4832
Width mm 936 936 1069 1069 1069 1039 1039 1162 1162 2129 2129
Height mm 1743 1743 1950 1950 1950 1997 1997 2051 2051 1562 1562
(4) kg 2981 3020 3912 3947 3965 6872 6950 7542 7752 10910 10946
 Semi-hermetic06Tscrewcompressors,50r/s
Circuit A 1 1 1 1 1 1 1 1 1 1 1
Circuit B - - - - - 1 1 1 1 1 1
(4) R-134a
Circuit A kg 130 130 180 175 170 120 120 130 130 240 250
teqCO2186 186 257 250 243 172 172 186 186 343 358
Circuit B kg - - - - - 120 120 150 130 240 250
teqCO2- - - - - 172 172 215 186 343 358
 SW220
Circuit A l 32 32 36 36 36 32 32 36 36 36 36
Circuit B l - - - - - 32 32 32 36 36 36
 TouchPilot,electronicexpansionvalves(EXV)
Minimum capacity (5) %15 15 15 15 15 10 10 10 10 10 10
 Multi-pipeoodedtype
Net water volume l 101 101 154 154 154 293 293 321 321 473 473
Waterconnections(Victaulic) in6688888881010
Drainandventconnections(NPT) in 3/8 3/8 3/8 3/8 3/8 3/8 3/8 3/8 3/8 3/8 3/8
Max.water-sideoperatingpressure kPa 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000
 Multi-pipeoodedtype
Net water volume l 103 103 148 148 148 316 316 340 340 623 623
Waterconnections(Victaulic) in6688888881010
Drainandventconnections(NPT) in 3/8 3/8 3/8 3/8 3/8 3/8 3/8 3/8 3/8 3/8 3/8
Max.water-sideoperatingpressure kPa 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000
(1) IndBref=10-12W,(A)weighting.DeclareddualnumbernoiseemissionvaluesinaccordancewithISO4871(withanassociateduncertaintyof+/-3dB(A)).Measuredin
accordancewithISO9614-1.
(2) IndBref20µPa,(A)weighting.DeclareddualnumbernoiseemissionvaluesinaccordancewithISO4871(withanassociateduncertaintyof+/-3dB(A)).For
information,calculatedfromthesoundpowerlevelLw(A).
(3) Option257=Lownoiselevel.
(4) Weightshownisguidelineonly.Pleaserefertotheunitnameplate.
(5) Minimumunitcapacitycorrespondstoaphysicalstateoftheunitandisgivenforindicationonly.Theactualcapacityatthisstagedependsonoperatingconditions.

14


30XW--/30XWH 254 304 354 402 452 552 602 652 702 802 852 1002 1052 1154 1252 1352 1452 1552 1652 1702

Nom.powersupply V-ph-Hz 400-3-50
Voltagerange V 360-440
 24Vviathebuilt-intransformer

Circuit A A 233 233 303 414 414 414 414 587 587 587 587 414 414 414 587 587 587 587 587 587
Circuit B A - - - - - - - - - - - 414 414 414 414 587 587 587 587 587
Option 81 A - - - - - - - - - - - 558 574 574 747 780 801 819 819 819

Circuit A A 233 233 303 414 414 414 414 587 587 587 587 414 414 414 587 587 587 587 587 587
Circuit B A - - - - - - - - - - - 414 414 414 414 587 587 587 587 587
Option 81 A - - - - - - - - - - - 631 656 656 829 882 904 938 938 938

Nominal*** 0.83 0.85 0.83 0.87 0.88 0.89 0.89 0.88 0.89 0.90 0.90 0.88 0.89 0.89 0.88 0.88 0.89 0.90 0.90 0.90
Maximum**** 0.89 0.89 0.88 0.90 0.90 0.91 0.91 0.90 0.91 0.92 0.92 0.90 0.91 0.91 0.90 0.90 0.91 0.92 0.92 0.92
Totalharmonic
distortion****
%00000000000000000000

Circuit A kW 76 89 97 128 135 151 151 184 200 223 223 150 151 151 184 184 200 223 223 223
Circuit B kW - - - - - - - - - - - 135 151 151 151 184 200 223 202 223
Option 81 kW - - - - - - - - - - - 284 301 301 334 367 399 447 425 447

Circuit A A 84 96 113 136 144 162 162 193 214 232 232 162 162 162 193 193 214 232 232 232
Circuit B A - - - - - - - - - - - 144 162 162 162 193 214 232 214 232
Option 81 A - - - - - - - - - - - 306 324 324 355 386 427 464 446 464

Circuit A A 123 145 160 206 217 242 242 295 317 351 351 242 242 242 295 295 317 351 351 351
Circuit B A - - - - - - - - - - - 217 242 242 242 295 317 351 317 351
Option 81 A - - - - - - - - - - - 459 484 484 537 590 634 702 668 702

Circuit A A 138 162 178 218 230 260 260 304 340 358 358 260 260 260 304 304 340 358 358 358
Circuit B A - - - - - - - - - - - 230 260 260 260 304 340 358 340 358
Option 81 A - - - - - - - - - - - 490 520 520 564 608 680 716 698 716

Circuit A kW 67 79 87 114 118 133 134 173 183 205 205 133 133 133 173 173 183 207 207 207
Circuit B kW - - - - - - - - - - - 118 133 133 133 173 183 207 185 207
Option 81 kW - - - - - - - - - - - 251 265 265 305 346 365 414 391 414

Circuit A A 109 129 142 183 191 212 212 278 290 325 325 212 212 212 278 278 290 325 325 325
Circuit B A - - - - - - - - - - - 191 212 212 212 278 290 325 290 325
Option 81 A - - - - - - - - - - - 403 424 424 490 556 580 650 615 650

30XW-P/30XWHP 512 562 712 812 862 1012 1162 1314 1464 1612 1762

Nominal power supply V-ph-Hz 400-3-50
Voltagerange V 360-440
 24Vviathebuilt-intransformer

Circuit A A 414 414 587 587 587 414 414 587 587 587 587
Circuit B A - - - - - 414 414 414 587 587 587
Option 81 A - - - - - 556 574 747 780 801 819

Circuit A A 414 414 587 587 587 414 414 587 587 587 587
Circuit B A - - - - - 414 414 414 587 587 587
Option 81 A - - - - - 631 656 829 882 904 938

Nominal*** 0.88 0.89 0.88 0.89 0.90 0.86 0.87 0.88 0.88 0.89 0.90
Maximum**** 0.90 0.90 0.90 0.91 0.92 0.89 0.90 0.90 0.90 0.91 0.92
Totalharmonicdistortion**** % 00000000000

Circuit A kW 135 151 184 200 223 134 151 184 184 200 223
Circuit B kW - - - - - 134 151 151 184 200 223
Option 81 kW - - - - - 267 301 334 367 399 447

Circuit A A 144 162 193 214 232 144 162 193 193 214 232
Circuit B A - - - - - 144 162 162 193 214 232
Option 81 A - - - - - 288 324 355 386 427 464

Circuit A A 217 242 295 317 351 217 242 295 295 317 351
Circuit B A - - - - - 217 242 242 295 317 351
Option 81 A - - - - - 434 484 537 590 634 702

Circuit A A 230 260 304 340 358 230 260 304 304 340 358
Circuit B A - - - - - 230 260 260 304 340 358
Option 81 A - - - - - 460 520 564 608 680 716

Circuit A kW 118 133 173 183 207 118 133 173 173 183 207
Circuit B kW - - - - - 118 133 133 173 183 207
Option 81 kW 235 265 305 346 365 414

Circuit A A 191 212 278 290 325 191 212 278 278 290 325
Circuit B A - - - - - 191 212 212 278 290 325
Option 81 A - - - - - 382 424 490 556 580 650
* Instantaneousstart-upcurrent(maximumoperatingcurrentofthesmallestcompressor(s)+lockedrotorcurrentorreducedstart-upcurrentofthelargestcompressor).
ValuesobtainedatstandardEuroventconditions:evaporatorentering/leavingwatertemp.=12°C/7°C,condenserentering/leavingwatertemp.=30°C/35°C.
** Instantaneousstart-upcurrent(maximumoperatingcurrentofthesmallestcompressor(s)+lockedrotorcurrentorreducedstart-upcurrentofthelargestcompressor).
Valuesobtainedatoperationwithmaximumunitpowerinput.
*** ValuesobtainedatstandardEuroventconditions:evaporatorentering/leavingwatertemp.=12°C/7°C,condenserentering/leavingwatertemp.=30°C/35°C
**** Valuesobtainedatoperationwithmaximumunitpowerinput.
† Valuesobtainedatoperationwithmaximumunitpowerinput.Valuesgivenontheunitnameplate.

15

Short-circuit stability current for all units using the TN
system (earthing system type): 50 kA (conditional system
short-circuit current Icc/Icf at the unit connection point as
rms value).
All units are equipped with protection fuses located in the
control box immediately downstream from the unit connec-
tion point.

   

MHA (A)    
 84 123 109 138 233 725 0.83 0.89
 96 145 129 162 233 725 0.85 0.89
 113 160 142 178 303 945 0.83 0.88
 144 217 191 230 414 1290 0.88 0.9
 162 242 212 260 414 1290 0.89 0.9
 193 295 278 304 587 1828 0.88 0.9
 214 317 290 340 587 1828 0.89 0.91
 232 351 325 358 587 1828 0.9 0.91
 95 160 125 176 303 945 0.79 0.88
 109 185 144 206 388 1210 0.78 0.87
 125 200 156 224 388 1210 0.81 0.88
 162 275 215 300 587 1828 0.85 0.91
 171 300 234 330 587 1828 0.85 0.91
 210 400 312 419 629 1919 0.85 0.90
 230 430 335 455 629 1919 0.86 0.90
 250 460 359 476 629 1919 0.87 0.90
* ValueatstandardEuroventconditions:evaporatorentering/leavingwatertemperature=12°C/7°C,condenserentering/leavingwatertemperature=30°C/35°C.
** Valueatmaximumcapacityandnominalvoltage(400V)

MHA -Maximumcompressoroperatingcurrent,limitedbytheunit(currentgivenformaximumcapacityat360V)
 - Locked rotor current for star connection (connection during compressor start-up)
 - Locked rotor current for delta connection

30XW 254 304 354 402
452
512
552
562
602
652
712
702
812
802
852
862
1002 1012 1052
1154
1162
1252
1314
1352
1464
1452
1612
1552
1702
1762
1652

 A---------------
 -A--------------
 --A-------------
 ---A----BAB------
 ----A---A-ABB----
 -----A-----AAB---
 ------A------AB-B
 -------A------ABA

 A---------------
 -A--------------
 --A-------------
 ---A----BAB------
 ----A---A-ABB----
 -----A-----AAB---
 ------A------AB-B
 -------A------ABA

16

Please refer to the certied dimensional drawings, supplied
with the unit.

The power supply must conform to the specication on the
unit nameplate. The supply voltage must be within the range
specied in the electrical data table. For connection details
refer to the wiring diagrams.
WARNING: Operation of the unit with an improper supply
voltage or excessive phase imbalance constitutes abuse which
will invalidate the Carrier warranty. If the phase imbalance
exceeds 2% for voltage, or 10% for current, contact your
local electricity supplier at once and ensure that the unit is
not switched on until corrective measures have been taken.

100 x max. deviation from average voltage
Average voltage
Example:
On a 400 V - 3 ph - 50 Hz supply, the individual phase
voltages were measured to be:
AB = 406 V; BC = 399 V; AC = 394 V
Average voltage = (406 + 399 + 394)/3 = 1199/3
= 399.7 say 400 V
Calculate the maximum deviation from the 400 V average:
(AB) = 406 - 400 = 6
(BC) = 400 - 399 = 1
(CA) = 400 - 394 = 6
The maximum deviation from the average is 6 V.The greatest
percentage deviation is: 100 x 6/400 = 1.5 %. This is less
than the permissible 2% and is therefore acceptable.

Units Connection points
30XW 252-862 1 per unit
30XW 1002-1762 1 for circuit A
1 for circuit B

Wire sizing is the responsibility of the installer, and depends
on the characteristics and regulations applicable to each
installation site. The following is only to be used as a guide-
line, and does not make in any way liable.After wire sizing
has been completed, using the certied dimensional drawing,
the installer must ensure easy connection and dene any
modications necessary on site.
The connections provided as standard for the eld-supplied
power entry cables to the general disconnect/isolator switch
are designed for the number and type of wires, listed in the
second column of the table on the next page.
The calculations for favourable and unfavourable cases are
based on the maximum current for each unit (see electrical
data tables). The design uses the standardised installation
methods in accordance with IEC 60364: multiconductor
PVC (70°C) or XLPE (90°C) insulated cables with copper
core; arrangement to comply with table 52c of the above
standard. The maximum temperature is 42°C. The given
maximum length is calculated to limit the voltage drop to 5%.

• As standard:
 30XW254to862unitshaveasinglepowerconnectionpointlocated
immediatelyupstreamofthemaindisconnectswitch.
 30XW1002to1762unitshavetwoconnectionpointslocatedimmediately
upstreamofthemaindisconnectswitches.
• Thecontrolboxincludesthefollowingstandardfeatures:
- One main disconnect switch per circuit*
- Starter and motor protection devices for each compressor
- Anti-short cycle protection devices*
- Control devices
• Field connections:
 Allconnectionstothesystemandtheelectricalinstallationsmustbeinfull
accordancewithallapplicablecodes.
• TheCarrier30XWunitsaredesignedandbuilttoensureconformancewith
localcodes.TherecommendationsofEuropeanstandardEN60204-1
(correspondstoIEC60204-1)(machinesafety-electricalmachine
components-part1:generalregulations)arespecicallytakenintoaccount,
whendesigningtheelectricalequipment.
• Theabsenceofpowersupplydisconnectswitch(es)andshort-cycleprotection
devicesinoption82Aisanimportantfactorthathastobetakenintoconsidera-
tionattheinstallationsite.
 Unitsequippedwithoneofthesetwooptionsaresuppliedwithadeclarationof
incorporation,asrequiredbythemachinerydirective.

• GenerallytherecommendationsofIEC60364areacceptedascompliance
withtherequirementsoftheinstallationdirectives.ConformancewithEN
60204-1isthebestmeansofensuringcompliancewiththeMachinesDirective.
• AnnexBofEN602041describestheelectricalcharacteristicsusedforthe
operationofthemachines.
1. Theoperatingenvironmentforthe30XWunitsisspeciedbelow:
• Environment**EnvironmentasclassiedinEN60721(correspondstoIEC60721):
- indoor installation
 - ambienttemperaturerange:minimumtemperature+5°Cto+42°C,class
AA4
- altitude: lower than or equal to 2000 m
 - presenceofwater:classAD2(possibilityofwaterdroplets)
 - presenceofhardsolids,class4S2(nosignicantdustpresent)
 - presenceofcorrosiveandpollutingsubstances,class4C2(negligible)
- personal skills: BA4 (informed person)
2. Powersupplyfrequencyvariation:±2Hz.
3. Theneutral(N)linemustnotbeconnecteddirectlytotheunit(ifnecessaryuse
atransformer).
4. Overcurrentprotectionofthepowersupplyconductorsisnotprovidedwiththe
unit.
5. Thefactoryinstalleddisconnectswitch(es)/circuitbreaker(s)is(are)ofatype
suitableforpowerinterruptioninaccordancewithEN60947-3(correspondsto
IEC60947-3).
6. TheunitsaredesignedforconnectiontoTNnetworks(IEC60364).ForIT
networkstheearthconnectionmustnotbeatthenetworkearth.Providealocal
earth,consultcompetentlocalorganisationstocompletetheelectricalinstallation.
 


* Not provided for units equipped with option 82A
** TherequiredprotectionlevelforthisclassisIP21BorIPX1B(accordingto
referencestandardIEC60529).All30XWunitsfullthisprotectioncondition.In
generalthecasingsfullclassIP23orIPX3B.
Motor
ABC

17

The power cables can enter the 30XW control box from
above the unit. A removable aluminium plate on the upper
part of the control box face allows introduction of the cables.
Refer to the certied dimensional drawing for the unit.

IMPORTANT: Field connection of interface circuits may
lead to safety risks: any control box modication must
maintain equipment conformity with local regulations.
Precautions must be taken to prevent accidental electrical
contact between circuits supplied by different sources:
• The routing selection and/or conductor insulation
characteristics must ensure dual electric insulation.
• In case of accidental disconnection, conductor xing
between different conductors and/or in the control
box prevents any contact between the conductor ends
and an active energised part.
Refer to the 30XA/30XW Pro-Dialog Control manual and
the certied wiring diagram supplied with the unit for the
eld control wiring of the following features:
• Remote on/off switch
• Demand limit external switch
• Remote dual set point
• Alarm, alert and operation report
• Evaporator pump control
• Heat reclaim condenser pump control (option)
• Hot water valve control (option)
• Various interlocks on the Energy Management Module
(EMM) board (accessory or option)
CCN bus connection
• The permanent connection to the system CCN bus is
made at the terminal provided for this purpose inside
the control box.
• The connection of the CCN service tool is possible at a
socket under the control box, accessible from outside.









       
    

254 - 304 1 x 150 1 x 50 160 XLPECu 1 x 95 310 PVCCu
354 1 x 240 1 x 70 220 XLPECu 1 x 95 350 PVCCu
402 1 x 240 1 x 70 170 XLPECu 1 x 150 350 PVCCu
452 - 512 1 x 240 1 x 95 230 XLPECu 1 x 185 390 PVCCu
552 - 562 - 602 1 x 240 1 x 95 275 XLPECu 1 x 185 360 PVCCu
652 - 712 1 x 240 1 x 120 210 XLPECu 1 x 240 380 PVCCu
702 - 812 1 x 240 1 x 150 230 XLPECu 1 x 240 330 XLPECu
802 - 852 - 862 1 x 240 1 x 150 217 XLPECu 1 x 240 320 XLPECu
1002 2x240/2x240 1x95/1x95 200/200 XLPECu 1x240/1x240 400/400 PVCCu
1012 2x240/2x240 1x120/1x95 230/200 XLPECu 1x240/1x240 400/401 PVCCu
1052 - 1154 - 1162 2x240/2x240 1x120/1x120 220/220 XLPECu 2x120/2x120 375/375 PVCCu
1252 - 1314 2x240/2x240 1x150/1x120 220/220 XLPECu 2x185/2x120 410/375 PVCCu
1352 - 1464 2x240/2x240 1x150/1x150 220/220 XLPECu 2x185/2x185 410/410 PVCCu
1452 - 1612 2x240/2x240 1x185/1x185 230/230 XLPECu 2x185/2x185 370/370 PVCCu
1552 - 1702 - 1762 2x240/2x240 1x185/1x185 220/220 XLPECu 2x240/2x240 400/400 PVCCu
1652 2x240/2x240 1x185/1x185 220/230 XLPECu 2x240/2x185 400/400 PVCCu

254 - 304 1 x 240 1 x 70 190 XLPECu 1 x 150 370 PVCCu
354 1 x 240 1 x 70 170 XLPECu 1 x 185 400 PVCCu
402 1 x 240 1 x 95 190 XLPECu 1 x 240 420 PVCCu
452 - 512 1 x 240 1 x 120 210 XLPECu 1 x 185 290 PVCCu
552 - 562 - 602 1 x 240 1 x 120 210 XLPECu 1 x 240 340 XLPECu
652 - 712 2 x 240 1 x 240 275 XLPECu 2 x 150 320 XLPECu
702 - 812 2 x 240 1 x 240 250 XLPECu 2 x 150 300 XLPECu
802 - 852 - 862 2 x 240 2 x 240 240 XLPECu 2 x 150 280 XLPECu
1002 2x240/2x240 1x150/1x150 220/230 XLPECu 2x150/2x150 310/340 PVCCu
1012 2x240/2x240 1x150/1x150 220/220 XLPECu 2x185/2x185 410/410 XLPECu
1052 - 1154 - 1162 2x240/2x240 1x150/1x150 210/210 XLPECu 2x185/2x185 400/400 PVCCu
1252 - 1314 2x240/2x240 1x240/1x150 240/210 XLPECu 2x185/2x185 310/400 XLPECu/PVCCu
1352 - 1464 2x240/2x240 1x240/1x240 240/240 XLPECu 2x185/2x185 310/310 XLPECu
1452 - 1612 2x240/2x240 2x120/2x120 220/220 XLPECu 2x240/2x185 320/310 XLPECu
1552 - 1652 - 1702 - 1762 2x240/2x240 2x120/2x120 210/210 XLPECu 2x240/2x240 320/320 XLPECu

 4 x 240 2 x 150 220 XLPECu 4 x 120 375 PVCCu
 4 x 240 4 x 120 210 XLPECu 4 x 240 400/400 PVCCu

 4 x 240 2 x 185 220 XLPECu 4 x 150 310 XLPECu
 5 x 240 4 x 120 210 XLPECu 4 x 240 320 XLPECu
* Connectioncapacitiesactuallyavailableforeachmachine,denedaccordingtotheconnectionterminalsize,thecontrolboxaccessopeningsizeandtheavailable
spaceinsidethecontrolbox.
** Selectionsimultationresultconsideringthehypothesisindicated.
*** IfthemaximumcalculatedsectionisforanXLPEcabletype,thismeansthataselectionbasedonaPVCcabletypecanexceedtheconnectioncapacityactually
available.Specialattentionmustbegiventotheselection.
Thecurrentsconsideredaregivenforamachineequippedwithahydraulicmoduleoperatingatmaximumcurrent.

18

The minimum chilled water ow is shown in the table in
chapter 6.6.
If the system ow is less than the minimum unit ow rate,
the evaporator ow can be recirculated, as shown in the
diagram.


1. Evaporator
2. Recirculation

The maximum chilled water ow is limited by the permitted
pressure drop in the evaporator. It is provided in the table
in chapter 6.6.
• Select the option with one water pass less that will
allow a higher maximum water ow rate (see option
100C in the table in chapter 6.5).
• Bypass the evaporator as shown in the diagram to
obtain a lower evaporator ow rate.


1. Evaporator
2. Bypass
Evaporatorleavingwatertemperature,°C
Condenserleavingwatertemperature,°C

The minimum and maximum condenser water ow rates
are shown in the table in chapter 6.6.
If the system ow is higher than the maximum unit ow
rate, select the option with one pass less that will allow a
higher maximum water ow rate. Please refer to option
102C in the table in chapter 6.5.
15
20
25
30
35
40
45
50
55
0510 15 20
 Fromapprox.45%tofullload
 Partloadlimitapprox.35%
 Minimumloadlimitapprox.15%

Control circuit reserve:
After all required options have been connected, the TC
transformer includes a power reserve that can be used for
the eld control wiring:
• Unit without option 084* 2 A (24 V a.c.) or 48 VA
• Unit with option 084* 1.3 A (24 V a.c.) or 30 VA
* 084 or 084R or 084D
As an option, a the 230 V, 50 Hz circuit allows the supply of
a battery charger for a portable computer at 1 A maximum
at 230 V.The connection is via a CEE7/7 type socket (2
poles with earth) located under the control box and
accessible from outside.


30XW--/30XW-P  

Entering temperature at start-up - 35.0°C
Leaving temperature during operation 3.3°C* 20.0°C
Entering/leavingtemperaturedierenceatfullload 2.8K 11.1K

Entering temperature at start-up 13.0°C** -
Leaving temperature during operation 19.0°C** 50.0°C***
Entering/leavingtemperaturedierenceatfullload 2.8K 11.1K
* For low-temperature applications, where the leaving water temperature is
below3.3°C,afrostprotectionsolutionmustbeused.Pleaserefertooption5
andoption6.
** Forlowercondensertemperaturesawaterowcontrolvalvemustbeusedat
thecondenser(twoorthree-wayvalve).Pleaserefertooption152toensure
thecorrectcondensingtemperature.
*** Please refer to option 150 for applications with a high condenser leaving
temperature(upto63°C).
Ambienttemperatures:Theseunitsarededicatedforindoorenvironment.
Theexternaltemperatureatchillerstartupshouldbeatleast5°C.Forsuchlow
ambient,option152isrecommended.Duringstorageandtransportofthe30XW
units(includingbycontainer)theminimumandmaximumpermissibletemperatures
are-20°Cand72°C(and65°Cforoption200).
Formoreprecisedetailsrefertotheunitselectionprogram.
1
2
1
2
1

19

Variable evaporator ow can be used. The controlled ow
rate must be higher than the minimum ow given in the
table of permissible ow rates and must not vary by more
than 10% per minute.
If the ow rate changes more rapidly, the system should
contain a minimum of 6.5 litres of water per kW instead of
3.25 l/kW.
It is possible to use a dedicated terminal to connect the
pump drive (0/10V signal) .
Please refer to 30XB/30XA/XAS/XW/XWZE Touch Pilot
control manual.

Whichever the system, the water loop minimum volume is
given by the formula: Volume = Cap (kW) x N litres
 
Normal air conditioning 3.25
Process type cooling 6.5
Where Cap is the nominal system cooling capacity (kW) at
the nominal operating conditions of the installation.
This volume is necessary for stable operation.
It is often necessary to add a buffer water tank to the circuit
in order to achieve the required volume. The tank must
itself be internally bafed in order to ensure proper mixing
of the liquid (water or brine). Refer to the examples below.



 254 304 354 402 452 552 602 652 702 802 852 1002 1052 1154 1252 1352 1452 1552 1652 1702

Standard 22222222222222222222
Option100C11111111111111111111

Standard 22222222222222222222
Option102C11111111111111111111

 512 562 712 812 862 1012 1162 1314 1464 1612 1762

Standard 22222222222
Option 100C 1 1 1 1 1 1 1 1 1 1 1

Standard 22222222222
Option 102C 1 1 1 1 1 1 1 1 1 1 1

These below values are given for standard units. For options 100C and 102C, please refer to the unit selection program.

 254 304 354 402 452 552 602 652 702 802 852 1002 1052 1154 1252 1352 1452 1552 1652 1702

Minimum 6 6 6 7 7 7 7 9 9 9 9 13 13 15 18 18 18 18 22 22
Maximum 39 39 39 39 43 43 43 57 57 57 61 67 67 78 84 84 84 84 116 116

Minimum 4 4 4 4 4 4 4 6 6 6 8 8 8 9 12 12 12 12 14 14
Maximum 29 29 29 29 47 47 47 55 55 55 82 82 82 109 119 119 119 119 134 134

 512 562 712 812 862 1012 1162 1314 1464 1612 1762

Minimum 10 10 13 13 13 18 18 22 22 28 28
Maximum 57 57 76 76 76 84 84 116 116 121 121

Minimum 6 6 8 8 8 12 12 18 18 22 22
Maximum 55 55 74 74 74 119 119 130 130 149 149

-Minimumevaporatorowratebasedonawatervelocityof0,5m/s.
-Minimumcondenserowratebasedonawatervelocityof0,3m/s.
-Maximumowratebasedonapressuredropof120kPa(unitswithtwoevaporatorpassesandtwocondenserpasses).
Bad
Bad
Good
Good

20
Pressure drop, kPa
Waterowrate,l/s

Pressure drop, kPa
Waterowrate,l/s
Pressure drop, kPa
Pressure drop, kPa

Waterowrate,l/s Waterowrate,l/s

30XW--/30XWH-/30XW-P/30XWHP

30XW--/30XWH-/30XW-P/30XWHP

30XW--/30XWH-/30XW-P/30XWHP

30XW--/30XWH-/30XW-P/30XWHP
10
20
30
40
50
60
70
80
90
100
110
120
0 10 20 30 40 50 60 70 80 90 100 110 120
15
13/14 1 2 3 4 5 6 7 8 9/10 11
12
3
6
9
12
15
18
21
24
27
30
33
36
0 10 20 30 40 50 60 70 80 90 100 110 120
15
14
13
1
2/4
3
5 6 7 8
9
10/11
12
10
20
30
40
50
60
70
80
90
100
110
120
0 10 20 30 40 50 60 70 80 90 100 110 120
1 2 3 4 9
12
11
107/85/6
3
6
9
12
15
18
21
24
27
30
33
36
0 10 20 30 40 50 60 70 80 90 100 110
1 2 3 4 5 6 7 8 9
12
11
10

1. 254
2. 304
3. 354
4. 402,452,552,602
5. 512,562
6. 652,702,802
7. 852
8. 1002,1052
9. 1154
10. 712,812,862
11. 1012,1162
12. 1252,1352,1452,1552
13. 1314,1464
14. 1652,1702
15. 1612,1762

1. 254
2. 304
3. 354
4. 402,452,552,602
5. 512,562
6. 652,702,802
7. 852
8. 1002,1052
9. 1012,1162
10. 712,812,862
11. 1252,1352,1452,1552
12. 1154
13. 1314,1464
14. 1652,1702
15. 1612,1762

1. 254,304,354
2. 402,452,552,602
3. 512,562
4. 652,702,802
5. 712,812,862
6. 852
7. 1154
8. 1002,1052
9. 1012,1162
10. 1252,1352,1452,1552,1314,1464
11. 1652,1702
12. 1612,1762

1. 254,304,354
2. 402,452,552,602
3. 512,562
4. 652,702,802
5. 712,812,862
6. 852
7. 1002,1052
8. 1154
9. 1012,1162
10. 1252,1352,1452,1552,1314,1464
11. 1652,1702
12. 1612,1762