Hyfra pedia CHILLY 25 User Manual
Zertifizier
t
h
SO
900
000
YOUR PARTNER IN PROCESS COOLING
Nr. / no. 08 11 0365
nac
DIN EN I
1 : 2
OPERATING INSTRUCTIONS
1 SAFETY / PREVENTION OF ACCIDENTS 2
2 TRANSPORT 4
3 INSTALLATION AND INITIAL OPERATION 5
4 CARE AND MAINTENANCE 9
5 FAULT DIAGNOSIS 11
6 IMPORTANT INFORMATION
ON WATER QUALITY 14
7 PLATE HEAT EXCHANGER (OPTION) 16
8 WASTE DISPOSAL 16
APPENDIX
- TECHNICAL DATA
- TEMPERATURE CONTROLLER
- WIRING DIAGRAM
These operating instructions have to be read carefully before putting the
chiller into operation.
Please observe these instructions, otherwise the manufacturers liability for subsequent damage will be cancelled.
All rights required for further technical development and modifi cation, are reserved.
Proper use of the chiller
This chiller is designed for the cooling of water only. For the use of other agents (e.g. deionised water) please contact
the manufacturer. Limits indicated in the technical data must be adhered to strictly, otherwise the manufacturers
liability for subsequent damage will be cancelled. Chilling of fl ammable or explosive substances is prohibited.
IMPORTANT!
IMPORTANT!
Please keep these operating instructions
for further use!
Operating Instructions 1
1 SAFETY / PREVENTION OF ACCIDENTS
General information
These operating instructions contain valuable information which has to be observed during initial
start-up, operation and maintenance. Therefore these instructions are to be read by the installer and operating personnel in charge, before putting the chiller into operation.
All general safety instructions mentioned in this chapter and special security instructions given in other sections of
this manual have to be observed.
Personnel qualifi cation and training
Operating, maintenance, inspection and installation personnel must be qualifi ed. Responsibility and supervision
must be clearly explained to the operator.
Danger due to non-observance of safety instructions
Non-observance of safety instructions may cause injuries, endanger the environment or damage the chiller. Nonobservance of safety instructions will cancel the manufacturers liability for subsequent damage.
Safety conscious operation
The safety instructions given in these operating instructions, including national regulations on accident prevention
as well as any specifi c chiller safety instructions must be observed.
Safety instructions for user / operator
Protective guards that have been installed to prevent contact with moving parts may not be removed when the unit
is being operated. Danger resulting from the use of electrical power is excluded (for detailed information, refer to
the VDE regulations and the regulations of the local power supply authorities).
Safety instructions on maintenance, inspection, and installation work
Basically none of the cleaning or maintenance tasks may be performed until the unit has come to a complete standstill. As soon as this work has been completed, all the safety devices and protective equipment must be mounted or
installed according to their proper function.
Arbitrary modifi cation and production of spare parts
The unit may be converted only if an agreement has been reached with the manufacturer. Original spare parts and
accessories accepted by the manufacturer serve as safety guarantee. Use of other parts may cancel the manufacturer‘s
liability for subsequent damages
2 Operating Instructions
1 SAFETY / PREVENTION OF ACCIDENTS
Non-permissible operating methods
The operational safety of the delivered unit is guaranteed only if the unit is properly used as intended.
Limits indicated in the technical data must not be exceed
Health hazards with the refrigerant
The refrigerant has only a very low acute health hazard. It has narcotic effects only at extremely high concentrations. After acute exposure to extremely high concentrations the substance is eliminated over the lungs very quikkly. The refrigerant has a certain irritating effect on skin and mucous membranes. Exposure of the skin to liquid
refrigerant can cause frost bite. In the presence of open fl ames or hot surfaces refrigerant can decompose and form
toxic decomposition products (e.g. hydrogyn chloride, phosgene). The refrigerant evaporates when exposed to air
. Intentional exposure of refrigerant is not permissible. The chiller must be handled with great care to prevent any
damage occuring through transport operations.
Warning!
Attention!
Note!
Safety symbols
This symbol is to be found next to all the safety instructions involving work that
may result in serious injuries. Observe these instructions and proceed with extreme
caution in such instances. Inform all other users as well. In addition to the instructions included in this manual, the applicable general safety and accident prevention
regulations must also be taken into account.
This symbol is to be found next to the items in this manual that must
be strictly observed to ensure proper application of the guidelines, regulations, instructions and procedure of tasks and to make sure that the machine or other parts are not
damaged or destroyed.
This symbol explains that chiller is designed according to state-of-the-art technology and
is safe to operate. Dangerous situations may, however, be the result if the unit is used
by personnel without adequate qualifi cation or if it is not used correctly according to its
intended purpose. Accordingly, this may affect effi cient operation of the unit.
Operating Instructions 3
2 TRANSPORT
The chiller may only be transported in original packaging to the site of initial operation. In case of damage the manufacturer must be informed immediately. If the unit is moved to another location in a factory, all connections must
be disconnected from the unit. Moving the unit to another location must be carried out without causing damages.
If damage occurs despite these instructions, the unit must be checked by an expert and repaired as required before
it is put into operation again.
Note:
The Manufacturers Liability excludes any Damage to the Chiller
subsequent to Transportation.
When transporting the unit, consider the weight limits indicated in the technical data.
Use a fork-lift, truck or a crane with the corresponding load-capacity.
The fully-hermetic compressor is mounted on rubber. Avoid vibrations during transport.
Failure to observe can result in compressor damage.
4 Operating Instructions
3 INSTALLATION AND INITIAL OPERATION
Installation
Prior to installation and commissioning of the chiller, please observe the following points strictly:
The fresh air intake temperature may not exceed the max.ambient temperature
(refer to name plate)
Assure that the required quantity of air is available at air cooled chillers.
Assure that the chiller hot air outlet does not warm up the environment or room excessivly.
Min.distance of fresh air intake: at least 0,5 m (air cooled version)
Min.distance of hot air outlet: at least 1,0 m (air cooled version)
Connection of an air supply and exhaust duct is not admitted.
The fresh air intake of the unit (condensor) may not be situated infront of a heat rejecting
device like a pump or electric motor.
The unit must be set up on level, solid surfaces only, in order to ensure the required stability.
For outside erected chillers, the minimum outdoor temperature should be considered from the
technical data.
Floor space
A minimum space must be left open around the installation, so that there is access to the various components and
to the control cabinet.
The distance from any constructions blocking the air supply must be at a minimum
distance of 0,5 meter.
Operating Instructions 5
3 INSTALLATION AND INITIAL OPERATION
Electrical connection
The chiller is ready for connection and is connected to a one or three phase current network
(mains voltage refer to technical data).
The power supply has to be connected in a right handed rotatory fi eld. In order to confi rm the
correct connection the direction of rotation of the fan motor must turn in the same direction as the
arrow.
All electrical connections in the switch board are to be tightened prior to commissioning.
Incorrect connection of power supply and incorrect power supply will cancel the
manufacturers liability for subsequent damage.
Hydraulic connection
After completing the electrical connection it is necessary to connect the Chiller to the consumer VIA fl exible or
fi xed pipes.
Selection of materials of pipes. PVC, Plastic, Stainless Steel, Copper and Brass are permissible.
Note: Mild Steel and Galvanized Steel is not permissible.
Selection of cross – section of pipes (for advise please refer to manufacturer).
Insulated pipes are to be used if the distance between the chiller and the consumer is greater
than 5 m.
Refer to technical data (pump diagram) for fl ow rate and pressure available from the chiller.
Before starting up it is always necessary to prime the pump with the medium to be transported.
(refer to BLEEDING OF PUMP in this chapter).
If the consumer is placed on a higher level than the chiller unit, a non-return valve has to be
recommend in the water outlet as well as an solenoid valve has to be installed in the water inlet.
Connect water inlet port to consumer return line.
Connect water outlet port to consumer inlet line.
Connect water supply port (if available) to city water net.
Please test fl oat valve adjustment (option). Float valve is factory adjusted at 3 bar water pressure.
Incorrect hydraulic installation will cancel the manufacturers liability for subsequent damag
Refi lling of the tank
Automatic refi ll
Tap/fresh water feed connected to water supply port guarantees constant level in the tank, so that evaporator always
remains submerged.
Manual refi ll
Filling of water manually through water inlet port or directly into tank.
The waterlevel can be observed by the water sightglass which can be seen from the outside of the
housing. Ensure that the evaporator is submerged.
6 Operating Instructions
3 INSTALLATION AND INITIAL OPERATION
Important:
Prior to fi lling of the tank it is esessential to test the water quality and if required carry out watertreatment (refer to chapter 7).
To avoid corrosion at the stainless steel evaporator, we recommend to use water with a low salt content (chloride
content < 20 mg/l). To avoid thickening of the tank water, we recommend to replace the system content every 1 to
3 months.
an increasing evaporation of the tank water means an increasing chloride content
(please refer to chapter 6).
For chillers running at temperatures lower than freezing point, a water/glycol mixture at the
appropriate ratio should be fi lled.
30% Glycol up to –10°C, at lower temperatures please refer to the manufacturer.
The tank should be fi lled to the max. level of the water level tube.
Prior to start up it is always necessary to prime the pump with the medium to be transported.
Prior to start up the pump must be bled in order to remove air from the pump.
Bleeding of the pump
Remove bleeding screw P (option)
Reinstall bleeding screw and tighten as soon as medium exits from fi ller fi tting.
Important: Ventilation of the pump
before start the process,following steps are to relize for ventilate the pump:
check the waterlevel in the tank and refi ll it, if necessary
open the outlet of the pump, or
connect only the outlet of the pump, let the inlet free fl ow out
If there is still some air in the system, you have to repeat the steps as described before.
After open the outlet start the pump for a short time.
Attention
before start the operation of the pump, the function of this pump must be absolutly check.
In case that the pump after a longer standstill and ventilation stopp , you have to introduce a
screwdriver through the airgrille into the shaft and turn it clockwise (1-2 turns min. ), until a easiness is produced.
Operating Instructions 7
3 INSTALLATION AND INITIAL OPERATION
Start–up of chiller
After successful completion of all instructions given in this chapter, the refrigerating plant is switched
on by means of the main switch or master switch (if installed). The OPERATION light will light up
during normal operation.
Master switch position: O = Off 1 = Operation
In case of irregularities occurring during operation or extraordinary noise, the chiller has to be
switched off by means of the control switch (please contact the manufacturer).
Confi rm the correct power supply connection.The direction of rotation of the fan motor must turn in
the same direction as the arrow.
8 Operating Instructions
Loading...