Rittal Blue e+ Assembly And Operating Instructions Manual
Blue e+ chiller
for cooling media
SK 3320200 SK 3334300 SK 3334400
Assembly and operating instructions
Contents
EN
Contents
1 Notes on documentation .................. 4
1.1 General ........................................................ 4
1.2 CE conformity .............................................. 4
1.3 Storing the documents................................. 4
1.4 Symbols used in these operating instructions 4
1.5 Other applicable documents ........................ 4
2 Safety notes ..................................... 4
2.1 General ........................................................ 4
2.2 Risks in case of failure to observe the safety
instructions .................................................. 4
2.3 Safety instructions for assembly, inspection
and maintenance work ................................. 4
2.4 Unauthorised operation................................ 5
2.5 Health risks due to the refrigerant R134a and
the cooling medium ..................................... 5
2.6 First aid measures........................................ 5
2.7 Fire-fighting measures.................................. 5
2.8 Safety measures and equipment.................. 5
2.9 Potential hazards and how to avoid them..... 6
3 Device description ............................ 7
3.1 General ........................................................ 7
3.2 General functional description ...................... 8
3.3 Control......................................................... 9
3.4 Characteristic curves.................................... 9
3.4.1 Characteristic curves of pump ............................... 9
3.4.2 Performance diagrams ........................................ 10
3.5 Safety devices............................................ 10
3.6 Options...................................................... 10
3.6.1 Inverter pump ..................................................... 10
3.6.2 Reinforced pump ................................................ 10
3.6.3 Outdoor .............................................................. 10
3.6.4 Oil/emulsion ........................................................ 10
3.6.5 Free Cooling ....................................................... 10
3.6.6 Water-cooled condenser ..................................... 10
3.6.7 Tank heating ....................................................... 10
3.7 Proper use, foreseeable misuse ................. 10
3.8 Supply includes.......................................... 11
4 Transport ....................................... 11
4.1 Delivery ...................................................... 11
4.2 Unpacking ................................................. 11
4.3 Transport ................................................... 11
6 Commissioning .............................. 18
6.1 Cooling medium water-glycol mixture......... 18
6.1.1 General remarks ................................................. 18
6.1.2 Cooling medium requirements ............................ 18
6.1.3 Preparation and care .......................................... 19
6.1.4 Recommended "Cooling medium for chillers" ..... 19
6.2 Filling the cooling medium .......................... 20
6.3 Bleeding the cooling medium pump ........... 20
6.4 Commissioning procedure ......................... 21
6.5 Adjusting the bypass valve ......................... 21
7 Operation ....................................... 21
7.1 General ...................................................... 21
7.2 Layout of the display .................................. 22
7.2.1 Start screen ........................................................ 22
7.2.2 Changing a parameter value ............................... 22
7.2.3 Help function ...................................................... 23
7.3 Info menu................................................... 23
7.3.1 Temperature info ................................................. 23
7.3.2 Device info .......................................................... 23
7.3.3 Efficiency info ...................................................... 24
7.3.4 Hydraulic info ...................................................... 24
7.4 Configuration menu.................................... 24
7.4.1 Control parameters ............................................. 25
7.4.2 Remote ............................................................... 28
7.4.3 Network .............................................................. 28
7.4.4 Alarm relays ........................................................ 29
7.4.5 Language settings .............................................. 29
7.4.6 Self-test .............................................................. 29
7.5 System messages...................................... 30
7.5.1 Occurrence of a malfunction ............................... 30
7.5.2 Display in case of errors ...................................... 30
8 Inspection and maintenance .......... 30
8.1 Maintaining the refrigerant circuit................ 31
8.2 Monitoring the cooling medium .................. 31
8.3 Cleaning the condenser ............................. 32
8.4 Cleaning the filter mat (accessories)............ 32
8.5 Draining the cooling medium tank .............. 32
9 Troubleshooting ............................. 33
9.1 List of system messages ............................ 34
10 Decommissioning and disposal ...... 36
10.1 Decommissioning....................................... 36
10.2 Disposal ..................................................... 36
5 Assembly and connection .............. 13
5.1 Dimensions ................................................ 13
5.2 Installation site requirements ...................... 13
5.3 Installing the chiller..................................... 14
5.4 Making the hydraulic connection................ 14
5.5 Connecting the cooling circuit (optional) ..... 15
5.6 Making electrical connection ...................... 15
5.6.1 Installing the power supply .................................. 16
5.6.2 Connecting the alarm relay query device ............. 16
5.6.3 External activation ............................................... 16
5.6.4 Room temperature sensor (accessories) ............. 16
5.7 Installing the filter mats (accessories).......... 16
2 Rittal Chiller Blue e+
11 Accessories ................................... 37
11.1 Connection set for air/water heat
exchangers ................................................ 37
11.2 Flow regulator valve.................................... 37
11.3 Textile filter mats ........................................ 37
11.4 Metal filter (aluminium filter)......................... 38
11.5 Cooling medium for chillers (ready-mix) ...... 38
11.6 Levelling feet .............................................. 38
11.7 Twin castors............................................... 38
11.8 Cross member ........................................... 38
11.9 External temperature sensor....................... 39
12 Appendix ....................................... 40
12.1 Block diagram............................................. 40
12.2 Spare parts................................................. 41
12.3 Technical specifications .............................. 42
12.4 Device drawings ......................................... 43
12.5 Operation of inverter pump ......................... 46
12.6 Declaration of Conformity............................ 47
Contents
EN
Rittal Chiller Blue e+ 3
1 Notes on documentation
EN
1 Notes on documentation
1.1 General
These instructions are aimed at installers and operators
who are familiar with the installation and the operation of
the chiller. It is very important to read and follow these
assembly and operating instructions prior to commissioning. These are the original operating instructions.
1.2 CE conformity
Rittal GmbH & Co. KG confirms the conformity of the
chiller with the European Union's Machinery Directive
2006/42/EC and EMC Directive 2004/108/EC. A corresponding declaration of conformity has been issued and
enclosed with the unit.
1.3 Storing the documents
The assembly and operating instructions as well as all
other applicable documents are an integral part of the
product. They must be issued to everyone who works
with the chiller and must always be available and on
hand for operating and maintenance personnel.
1.4 Symbols used in these operating instructions
The following symbols are used in this documentation:
Danger!
A dangerous situation in which failure to
comply with the instructions will result in
death or severe injury.
1.5 Other applicable documents
Assembly and operating instructions exist as paper documents and/or digital data carriers for the unit types described here and are enclosed with the equipment.
We cannot accept any liability for damage associated
with failure to observe these instructions. Where applicable, the instructions for any accessories used also apply.
2 Safety notes
2.1 General
Please observe the following general safety notes when
operating and installing the chiller:
Assembly, installation and maintenance must only be
carried out by qualified personnel.
Children and persons with limited cognitive/coordina-
tive abilities must not operate, maintain or clean the
unit or be allowed to use it as a toy.
Only use original spare parts and accessories author-
ised by the manufacturer to ensure the protection and
safety of the chiller. The usage of other parts will render any liability void.
Do not make any changes to the chiller that have not
been agreed with and approved by the manufacturer.
It is also imperative that you observe the special safety
instructions for the individual activities in the individual
chapters.
2.2 Risks in case of failure to observe the safety instructions
In case of failure to observe the safety notes, people, the
environment and the chiller may be placed at risk. Failure
to comply with the safety notes makes all claims for
compensation void.
Warning!
A dangerous situation which may cause
death or serious injury if the instructions
are not followed.
Caution!
A dangerous situation which may lead to
(minor) injuries if the instructions are not
followed.
Note:
Important notices and indication of situations
which may result in material damage.
This symbol indicates an "action point" and shows that
you should perform an operation or procedure.
4 Rittal Chiller Blue e+
2.3 Safety instructions for assembly, inspection and maintenance work
– The installation, commissioning and servicing of the
chiller must be carried out in strict compliance with the
technical documentation for the chiller and in such a
way that no potentially hazardous situations are allowed to occur.
– Cleaning and maintenance work on the chiller must
only be performed with the unit shut down. For this
purpose, it is vital to ensure that the chiller is disconnected from the power supply and is secured against
switching back on. It is imperative that you observe the
procedure for shutting down the chiller described in
the assembly and operating instructions.
– All safety devices and protective equipment must be
reattached or put in a functional condition immediately
after the work is complete.
– Modifications or changes to the chiller are not allowed.
– Only appropriately qualified personnel as defined by
BGR500 chap. 2.35 / EN 378 are allowed to work on
the refrigerant circuit.
– Do not install the chiller without protection outside of
covered areas, or in an explosive or aggressive environment.
– Do not install the chiller on an unstable surface or a
surface that is not designed for the weight of the chiller.
– Do not bypass any electrical safety devices to make it
possible to operate the chiller.
2.4 Unauthorised operation
The safety of the chiller supplied is only ensured if it is
used properly (see section3.7 "Proper use, foreseeable
misuse"). Under no circumstances should the limit values specified in the technical data be exceeded.
The chiller is not allowed to be used for the direct cooling
of liquids that are used for foodstuffs (e.g. drinking water).
Any existing contact hazard protection for moving parts
must not be removed from chillers while operational.
Hazards due to electrical power, do not remove any
switch box cover!
2 Safety notes
EN
Explosion hazard!
The use of the chiller for cooling inflam-
mable or pyrophoric substances is prohibited.
2.5 Health risks due to the refrigerant R134a and the cooling medium
The refrigerant changes status during operation and becomes pressurised. The R134a safety data sheet must
be observed.
The cooling medium (additive) is a liquid. We suggest:
"Cooling medium for chillers" (see section6.1 "Cooling
medium water-glycol mixture"). The safety data sheet
"Cooling medium for chillers" must be observed.
2.6 First aid measures
Please refer to safety data sheets R134a and "Cooling
medium for chillers".
Note:
Safety data sheets are available for down-
loading at www.rittal.com.
2.7 Fire-fighting measures
Suitable extinguishing agent
All known extinguishing agents can be used.
2.8 Safety measures and equipment
Ensure adequate ventilation.
Hand protection: Safety gloves.
Eye protection: Safety goggles.
Body protection: Wear safety shoes when handling
pressurised gas bottles.
Rittal Chiller Blue e+ 5
EN
2 Safety notes
2.9 Potential hazards and how to avoid them
The following table provides an overview of other potential sources of danger and how to avoid them.
Location Hazard Cause Precautionary measures
Device interior Severe personal
injury or damage to
property
Device interior Personal injury or
damage to property
Device interior Inhalation of toxic
gases/materials
Device interior Risk for the prod-
uct
Device interior: Microchannel condenser
Device interior:
Hot or cold parts
Minor cuts Contact while cleaning the
Burns / frostbite Contact with parts with a
Hazard due to electrical
equipment of the chiller
Electrical hazard while
working on the chiller
Soldering work inside the
chiller may release toxic
gases due to the installed
cooling circuit.
Liquid level after transport
not in upright position
condenser (see section8.3 "Cleaning the
condenser")
high or low surface temperature.
Recurrent testing of electrical equipment
(Germany BGV A3)
The power to the chiller must be disconnected via the main switch.
Maintenance may only be carried out by specialist personnel. Before carrying out soldering work on the cooling circuit or in its
immediate vicinity, the refrigerant should be
drained from the chiller.
Only transport the chiller upright. Should the
chiller be tilted during transportation, please
wait some minutes before switching on
again.
Wear safety gloves.
The chiller may only be opened by trained,
qualified personnel.
Device interior:
Cooling medium circuit
Device exterior Severe personal
Device exterior Personal injury or
Device exterior Cuts Contact with fan wheel Do not remove the protective cover around
Device exterior:
Area around the chiller
Device exterior:
Chiller with wheels
Tab. 1: Hazards and precautionary measures
Fungus and algae
formation
injury or damage to
property
damage to property
Major burns Fire caused by short-cir-
Personal injury or
damage to property
Use of pure water as a
cooling medium or refrigerant.
The floor on which the
chiller is installed is unstable and unable to support
its weight. The chiller tips
over or the floor gives way.
Hazards when transporting or assembling the chiller
cuiting or overheating of
the electricity supply line to
the chiller
The chiller starts to move
due to unevenness of the
floor surface.
Use a water-glycol mixture as your cooling
medium. Rittal recommends the use of
"Cooling medium for chillers" (ready-mix).
The weight of the chiller can be found in section12.3 "Technical specifications". Additionally, please allow for the weight of the
liquid in the tank (the capacity of the tank can
likewise be found in section 12.3 "Technical
specifications") and make sure that the floor
is suitable for installation purposes.
Secure the chiller against any risk of tilting
(eyebolts) when transporting or assembling.
the fan wheel.
Ensure that the cable cross-section and electricity supply line comply with the valid regulations.
If the recooling system is equipped with
wheels (option), they must be locked with
brakes while operational.
6 Rittal Chiller Blue e+
3 Device description
5
4
2
3
1
16
15
14
13
11
12
10
9
6
7
8
Note:
Specialist personnel are individuals who, by
virtue of their training, education, experience
and knowledge of the relevant provisions,
regulations and measures for accident prevention and relating to the operating conditions, have been authorised by the owner or
responsible individual to ensure the safety of
the system, carry out all essential tasks, and
are therefore in a position to identify and avert
all potential threats.
3 Device description
3.1 General
Chillers are used for the central and economical cooling
and supply of a cooling medium (water + glycol, see section6.1 "Cooling medium water-glycol mixture") in the
event of physical separation between the place where
cooling is required and the refrigeration. The cooling medium is supplied using a pipe system.
EN
Fig. 2: View from rear (3320200 and 3334300)
Key fig. 1 and fig. 2
1 Side air outlet, right
2 Side cover, right
3 Filler nozzle for cooling medium (behind louvred grilles)
4 Louvred grille for air inlet
5Display
6 Side cover, left
7 Side air outlet, left
8 Cooling medium connection, inlet
9 Tank drain nozzle (stop valve)
10 Adjustable overflow valve (bypass)
11 Rating plate
12 Cooling medium connection, return
13 Air outlet, rear
14 Radial fan
15 Master switch
16 Electrical interfaces
Fig. 1: View from front (3320200 and 3334300)
Rittal Chiller Blue e+ 7
EN
5
4
2
3
1
16
15
14
13
11
12
10
9
6
7
8
3 Device description
Key fig. 3 and fig. 4
1 Side air outlet, right
2 Side cover, right
3 Filler nozzle for cooling medium (behind louvred grilles)
4 Louvred grille for air inlet
5Display
6 Side cover, left
7 Side air outlet, left
8 Cooling medium connection, inlet
9 Tank drain nozzle (stop valve)
10 Adjustable overflow valve (bypass)
11 Rating plate
12 Cooling medium connection, return
13 Air outlet, rear
14 Radial fan
15 Master switch
16 Electrical interfaces
Note:
The motor circuit-breaker of the cooling me-
dium pump is accessed by opening the roof
plate. See also Q1 in section12.1 "Block diagram".
The chiller is equipped with an open reservoir for the
cooling medium.
Fig. 3: View from front (3334400)
3.2 General functional description
The chiller comprises four main components (see fig. 5):
– Evaporator coil (item 12),
– refrigerant compressor (item 13),
– condenser (item 1) with fan (item 2),
– control or expansion valve (item 4),
which are connected together by pipes. A pressure
switch (item 14) limits the maximum pressure in the refrigerant circuit. The refrigerant R134a (CH2FCF3) is
chlorine-free. Its Ozone Depletion Potential (ODP) is 0.
A filter drier (item 3) which is integrated into the hermetically sealed refrigerant circuit provides effective protection against moisture, acid, dirt particles, and foreign
bodies. A temperature control with temperature probe
(item 6) ensures that the cooling medium is maintained
at a preset setpoint temperature.
In the evaporator coil (item 12), the liquid refrigerant is
converted to a gaseous state. The heat necessary for
this purpose is taken from the cooling medium in the
Fig. 4: View from rear (3334400)
8 Rittal Chiller Blue e+
plate heat exchanger, which has the effect of cooling the
cooling medium. The refrigerant is compressed in the
compressor (item 13). As a result the refrigerant has a
higher temperature than the ambient air. The DC inverter
technology enables load-specific speed control of the
compressor motor, so that only the power actually
needed is supplied.
This heat is dissipated to the ambient air over the surface
of the condenser (item 1), resulting in the refrigerant
liquefying again. A water-cooled condenser may optionally be used (see section3.6.6 "Water-cooled condenser").
3 Device description
1
12
2
13
14
11
9
7
8
10
6
3
4
P
S
5
F
D
E
B
C
A
50 101520253035
6
5
4
3
2
1
P
Q
The refrigerant is injected into the evaporator (item 12)
via an electronic expansion valve (item 4), causing it to
expand and as a consequence is able to absorb the heat
from the cooling medium (water or water-glycol mixture).
The cooling medium is pumped to the equipment in an
additional circuit via the cooling medium tank (item 10)
and the cooling medium pump (item 9). The flow sensor
(item 11) ensures that the evaporator (item 12) is protected against freezing and running dry if the flow rate is
too low. The level switch (item 5) emits a warning if the
level in the cooling medium tank is too low. The inlet
temperature of the cooling medium (water or water-glycol mixture) is regulated using the temperature sensor
(item 6) on the water outlet. Optionally, an inverter pump
may also be used, so that the cooling medium pump is
also speed-controlled.
A layout drawing of the refrigerant circuit may be found
in fig. 5.
3.3 Control
The chillers are fitted with a controller for setting the
functions of the chiller.
Operation using this controller is described in section7
"Operation".
Within the compressor speed range from 25...100%, the
compressor is in continuous control mode. During continuous control mode, the control accuracy of the water
inlet temperature is ±0.5 K or better. At smaller loads requiring a speed of less than 25%, the compressor
switches to cycle mode, and the control accuracy of the
water inlet temperature is adjusted to ±2 K (refer to the
performance curves on the Rittal website).
3.4 Characteristic curves
3.4.1 Characteristic curves of pump
Characteristic curves measured under the following
conditions:
– Ambient temperature (T
– Medium temperature (T
– Cooling medium "water"
) = 32°C
a
) = 18°C
w
EN
Fig. 5: Schematic diagram of refrigerant circuit
Key
1 Condenser, air-cooled
2 Condenser fan (radial fan)
3 Filter dryer
4Expansion valve
5 Fill level monitoring
6 Temperature sensor
7 Fill nozzle
8 Tank drain nozzle
9 Cooling medium pump
10 Cooling medium tank
11 Flow sensor
12 Evaporator (plate heat exchanger)
13 Compressor
14 Pressure-operated switch
Rittal Chiller Blue e+ 9
Fig. 6: Characteristic curves
Key fig. 6
A 3320200 standard pump 50 Hz
B 3320200 standard pump 60 Hz
C 3320200 reinforced pump 50 Hz (option) or
3334300 and 3334400 standard pump 50 Hz
D 3320200 reinforced pump 60 Hz (option) or
3334300 and 3334400 standard pump 60 Hz
E 3334300 and 3334400 reinforced pump 50 Hz (option)
F 3334300 and 3334400 reinforced pump 60 Hz (option)
P External static pressure [bar]
Q Delivery flow [l/min]
The flow speed of the circulating medium is monitored
with a flow sensor. The sensor has a preset alarm
threshold and a variable warning threshold that can be
3 Device description
EN
set by the operator. When the warning threshold is
reached, a message is produced, and when the alarm
threshold is reached, a fault is generated.
If the flow rate of the circulating medium during operation drops below 4 l/min, the integrated flow sensor will
trip.
3.4.2 Performance diagrams
The performance diagrams can be found on the Rittal
website.
3.5 Safety devices
– In the cooling circuit, the chiller has a type-tested pres-
sure monitor (to EN 12263) which switches off the
chiller if the maximum admissible pressure is exceeded. Once the pressure drops back below the admissible pressure, the unit will automatically resume operation.
– Temperature monitoring prevents the evaporator coil
from icing over. The compressor gradually reduces the
output within the range 100...25%. If the risk of icing
persists for more than 2 minutes, the compressor will
switch off completely. At higher temperatures, the unit
automatically returns to control mode.
– The compressor motor and the fan motor are moni-
tored and protected by the inverter to prevent overloading.
– The cooling medium pump has a motor circuit-breaker
to prevent overcurrent and short-circuits.
– To ensure smooth-running and reliable operation (for
example after reaching the setpoint temperature or after a fault), the compressor automatically switches
back on after a delay.
– The chiller has floating contacts on terminals 8 to 10 of
the signal connector (X2), via which system messages
from the device may be polled, e.g. using a PLC (2 x
normally closed or normally open contacts).
3.6 Options
3.6.1 Inverter pump
The cooling medium pump can be designed as an inverter pump. In such cases, the pump is speed-controlled depending on the actual cooling medium demand
(see section12.5 "Operation of inverter pump").
3.6.2 Reinforced pump
For applications requiring a higher cooling medium
throughput or pressure, the cooling medium pump can
be designed in a higher output category.
3.6.3 Outdoor
The "Outdoor" option allows the chiller to be sited outside. To this end, the chiller is coated with a special
spray-finish. Outdoor siting means that the air at the system installation site is not additionally subject to waste
process heat.
For outdoor siting, a rain canopy should be provided by
the customer to protect the chiller from downpours.
Note:
With outdoor siting of the chiller, it is impor-
tant to ensure that a suitable cooling medium
is used (see section6.2 "Filling the cooling
medium"). This is the only scenario in which
operation to -20°C is admissible.
3.6.4 Oil/emulsion
Oil or an emulsion may also be used as a cooling medium, instead of the water/glycol mixture used as standard. In such cases, the components in the cooling circuit
are adapted accordingly, and the thermal capacity of the
cooling medium must be stored in the control system.
Note:
For the purpose of these instructions, we
have assumed that a water/glycol mixture is
used as the cooling medium.
3.6.5 Free Cooling
The "Free Cooling" option allows you to cool without the
refrigerant circuit in so-called hybrid mode. If this type of
cooling is preselected in the control system, with outdoor siting of the chiller, the system first attempts to use
only the (cold) ambient air to cool the cooling medium. If
this is no longer possible because the external temperatures are too high, it automatically activates the conventional cooling circuit to supply the required cooling medium temperature.
3.6.6 Water-cooled condenser
The condenser may be water-cooled. In such cases, a
separate cooling circuit must be connected to the condenser.
3.6.7 Tank heating
A tank heater may be installed to pre-heat the cooling
medium or for frost protection. A setting is made in the
control system to determine when the tank heater is
switched on and off.
3.7 Proper use, foreseeable misuse
The chiller is only used for cooling water-glycol mixtures.
Any other use is deemed improper. One exception to
this is operation with the "oil/emulsion" option (see section3.6.4 "Oil/emulsion").
When using other fluids, please refer to the technical
specifications in the appendix, or contact the manufacturer. Under no circumstances should the specified limits in the technical data be exceeded.
The chiller is state of the art and built according to recognised safety regulations. Nevertheless, improper use
can pose a threat to the life and limb of the user or third
10 Rittal Chiller Blue e+
4 Transport
parties, or result in possible damage to the system and
other property.
Consequently, the chiller must only be used properly
and in a technically sound condition! Any malfunctions
which impair safety should be rectified immediately.
Proper use also includes the observance of the documentation provided and compliance with the inspection
and maintenance conditions, and strictly professional
use as defined in DIN EN 61000-3-2.
Rittal GmbH & Co. KG is not liable for any damage which
may result from failure to comply with the documentation provided. The same applies to failure to comply with
the valid documentation for any accessories used.
Inappropriate use may be dangerous. Examples of inappropriate include:
– Use of the chiller for cooling flammable or combustible
substances.
– The chiller must never be used for the direct cooling of
liquids used in the food industry (e.g. drinking water).
– Use of impermissible tools.
– Improper operation.
– Improper rectification of malfunctions.
– Use of accessories not approved by Rittal GmbH &
Co. KG.
3.8 Supply includes
Qty. Description
1Chiller
1 Shipping bag with
1 – Assembly and operating instructions
1 – Connector
1 – Signal connector
4 – Eyebolt and plastic washer
2 – M25 screw connection
1 – M20 screw connection
Tab. 2: Scope of supply
4.2 Unpacking
Only transport the chiller in its original packaging ma-
terial before commissioning for the first time.
Remove the packaging materials from the chiller.
Note:
After unpacking, the packaging materials
must be disposed of in an environmentally
friendly way.
Check the chiller for any damage that may have oc-
curred during transport.
Note:
Damage and other faults, e.g. incomplete de-
livery, should be reported immediately, in
writing, to the shipping company and to Rittal
GmbH & Co. KG.
Check the supply contents for completeness (see sec-
tion 3.8 "Supply includes").
4.3 Transport
If the chiller is stored or transported at temperatures below freezing, return to room temperature before commissioning. This instruction also applies to the external
condenser circuit for a water-cooled condenser (option).
When transporting the chiller, please make allowance
for the weight specified in section12.3 "Technical
specifications".
Use lifting gear with a suitable load capacity.
If it is necessary to move the chiller in the factory, you
must disconnect all connections on the chiller.
Before transporting, empty the water circuit and tank
(see section8 "Inspection and maintenance").
Prevent excessive vibration.
Only transport the chiller upright.
Only transport the chiller on the pallet supplied with the
chiller or with the eyebolt provided (fig. 7, item 1).
Serrated washers for earthing are fitted to the eyebolts
in the mounted state. After transportation, the eyebolts
are exchanged for the pan-head screws provided. Plastic washers are included in the bag of accessories to
protect the paint.
Protect the chiller from unintentional movement (e.g.
when being transported by vehicle).
EN
4Transport
4.1 Delivery
The chiller is supplied in a packaging unit in a fully assembled state.
Check the packaging carefully for signs of damage.
Traces of oil on damaged packaging indicate a loss of
refrigerant and/or a leak in the chiller. Any packaging
damage may be the cause of a subsequent functional
failure.
Rittal Chiller Blue e+ 11
EN
1
1
1
1
4 Transport
Fig. 7: Eyebolt for transportation (3320200)
12 Rittal Chiller Blue e+
5 Assembly and connection
710 mm450 mm
1020 mm
450 mm
710 mm
5.1 Dimensions
5 Assembly and connection
EN
450 mm
820 mm
Fig. 8: Dimensions 3320200 and 3334300
710 mm
450 mm
710 mm
Fig. 9: Dimensions 3334400
5.2 Installation site requirements
– The chiller must be adequately protected from external
weather conditions.
– If the ambient air contains a high concentration of dust
or oily substances, the chiller should be fitted with a
metal filter (see section11.4 "Metal filter (aluminium filter)").
Rittal Chiller Blue e+ 13
– The supporting surface should be flat and sufficiently
robust to hold the weight (see section12.3 "Technical
specifications") during operation.
– If the chiller is sited outdoors, the "Outdoor" option
must be used (see section3.6.3 "Outdoor").
– The ambient temperature must lie within the limit val-
ues indicated in the technical specifications (see sec-
tion12.3 "Technical specifications").
5 Assembly and connection
300 mm
EN
– In order to prevent performance losses caused by
pressure drops in the pipework, the chiller should be
sited as close as possible to the equipment.
– At least one of the openings (left or right) must be freely
accessible to enable the unhindered expulsion of hot
air (see fig. 11). To allow connection of the supply lines
and facilitate maintenance and repair work, the minimum distances shown under fig. 10 should be adhered to.
– In order to avoid an "air short-circuit" (mixing of air in-
take and waste air) and ensure full cooling performance, the minimum distances shown under fig. 10
should likewise be adhered to.
300 mm 800 mm
Caution!
The connection of an air intake / waste
air duct is inadmissible.
To prevent performance losses, do not install the chill-
er near any form of heating.
Outdoor siting
Chillers must be installed such that they cannot become
damaged by internal traffic and transport operations.
5.3 Installing the chiller
Install the chiller on an even, firm surface. The maxi-
mum permissible deviation from the vertical is 2°.
Avoid the production of noise due to vibration (vibra-
tion dampers, sheets of foam rubber).
5.4 Making the hydraulic connection
Caution!
Risk of damage to the cooling medium
pump due to soiling in the cooling medium circuit! Flush the cooling medium circuit prior to connecting the chiller.
Fig. 10: Minimum distances, front/rear
Fig. 11: Minimum distances, sides
Ensure the room is adequately ventilated by installing
the chiller such that the warm exhaust air does not
heat the room excessively.
In case of installation in a "small" room, it is imperative
that you provide forced ventilation, as otherwise the
heat dissipated will build up.
The cooling medium outlet (fig. 2 or fig. 4, item 8) on the
chiller must be connected to the cooling medium inlet on
the equipment to be cooled. At the same time, the cooling medium inlet (fig. 2 or fig. 4, item 12) on the chiller
must be connected to the cooling medium outlet on the
equipment to be cooled. Please observe the following:
– To avoid condensation, always connect the equip-
ment using insulated pipelines and/or hoses.
– The nominal width of the piping must correspond at
least to the nominal width of the media connections on
the chiller.
– The cooling medium infeed to the chiller must be pres-
sureless, because the tank used in the system is open
to the atmosphere.
– Never connect the chiller to the drinking water supply.
– The pipework must be approved for the maximum
pressure expected (see section12.3 "Technical spec-
ifications").
Note:
The use of steel pipes or galvanised steel
pipes is inadmissible.
Prior to commissioning, it is imperative that the cooling
medium pump is filled with cooling medium and bled
(see section6.3 "Bleeding the cooling medium pump").
14 Rittal Chiller Blue e+
5 Assembly and connection
Caution!
An insufficient flow rate will trigger the
safety devices in the chiller. Pay attention to the minimum pressure required
and the minimum flow rate required (see
section12.3 "Technical specifications").
If the cooler on the equipment to be cooled is higher
than the chiller, we recommend installing a non-return
valve in the feed as well as a solenoid valve in the cooling
medium circuit return to prevent the tank from overflowing.
A bypass valve should be connected between the inlet
and return to protect the cooling medium pump. This
opens automatically, for example, if the equipment cycle
is shut off. Section6.5 "Adjusting the bypass valve" describes how to set the bypass valve.
5.5 Connecting the cooling circuit (optional)
If the chiller is equipped with the "water-cooled condenser" option (see section3.6.6 "Water-cooled condenser"), a cooling water supply must additionally be
connected to the condenser.
Additionally make the cooling water connections to
the condenser.
5.6 Making electrical connection
When carrying out the electrical installation, observe all
applicable national and regional regulations as well as
the regulations from the responsible utility company.
– Electrical installation must only be carried out by a
qualified electrician who is responsible for compliance
with the existing standards and regulations.
– All cables routed into the wiring compartment have to
be insulated for the maximum voltage of the power
supply.
Note:
The mains supply must be of a shielded de-
sign to guarantee the level of EMC protection.
– The cable shielding can contact the earth
terminal to the enclosure inside the connection box (fig.13, item 1).
– To ensure the proper functioning of internal presso-
stats in the event of a malfunction, a slow (time delay)
line fuse of no less than 15 A is required.
– Low-noise potential equalisation must be guaranteed
with the mains connection. As a general principal, the
chiller must be integrated into the building's potential
equalisation system.
– The conductor cross-sections of the power cable
must be selected according the rated current (see rating plate).
– The connection must be made with the field rotating
clockwise. The direction of rotation of the field can be
measured at the connection terminals L1, L2 and L3.
Connect with a clockwise rotating field to ensure that
the cooling medium pump motor rotates in the correct
direction.
Overvoltage protection and supply line load
– The chiller does not have its own overvoltage protec-
tion. Measures must be taken by the operator at the
supply end to ensure effective lightning and overvoltage protection.
– The mains voltage must not deviate by more than the
tolerance specified in section12.3 "Technical specifications".
– The chiller and its power electronics are designed in
accordance with overvoltage category III. If the combined output of the frequency converters, power converters or transformers in the network where the device is being operated is >70 kVA, the customer must
connect a Class II surge voltage protector in the mains
supply line upstream of the chiller. The surge voltage
protector must be designed to EN 61800 -1. The following values may be assumed as starting-points for
the design:
Transformers,
power electronics
70 kVA…100kVA 40J
100 kVA…200kVA 80J
200 kVA…400kVA 160J
400 kVA…800kVA 320J
Tab. 3: Design of the surge voltage protector
Assumed discharge
energy
EN
Connection data
– The connected voltage and frequency must corre-
spond to the ranges stated on the rating plate. The
units support multiple voltages.
– The chiller must be connected to the mains via an all-
pole isolating device.
– If a motor circuit-breaker or circuit-breaker is used, it
should be selected in accordance with EN 60898-1
(tripping characteristic type D).
Rittal Chiller Blue e+ 15
Interfaces
If you would like system messages from the chiller to be
evaluated via the alarm relay, you should also connect a
suitable low-voltage cable to the X2 signal connector
(see section5.6.2 "Connecting the alarm relay query device").
If you require remote activation of the chiller, this can
likewise be achieved via the X2 signal connector (see
section5.6.3 "External activation") and appropriate programming (see section7.4.2 "Remote").
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