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Related Manuals for FRIULAIR PURESTREAM MINI-CUBE QBS Series
Summary of Contents for FRIULAIR PURESTREAM MINI-CUBE QBS Series
- Page 1 PURESTREAM MINI-CUBE BY FRIULAIR QBS Air Cooled Water Chiller User Manual...
- Page 2 Editions Record Code Revision Edition Changes 7425MUM651 02/2018 Original instructions: ITALIAN Translation of the original instructions...
- Page 3 Dear Customer, Thank you for the trust you have placed in us. Please read this manual carefully to obtain the best performance from our product. In order to avoid incorrect operating conditions and danger for the operators, it is essential that you follow the directions meticulously as well as the current accident -prevention laws in the country of use.
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Page 4: Table Of Contents
SUMMARY Safety Rules ......................1 Definitions of the symbols used ..................1 Warnings .......................... 2 Proper use of the chiller ....................2 Instructions for using equipment under pressure conforming to PED Directive 2014/68/EU Operation And Main Components ................4 Refrigerant circuit ......................4 Water circuit ........................ - Page 5 6.11 Alternative method of temperature regulation ..............19 Calibration of the safety devices and type of rearm ............20 Rearming the high-pressure pressure switch ..............21 Operating Limits ....................22 SEPR - SEASONAL ENERGY PERFORMANCE RATIO ACCORDING TO COMMISSION REGULATION (EU) 2016/2281 ..............22 Maintenance, Inspections And Periodic Checks ..........
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Page 6: Safety Rules
AFETY ULES 1.1 D EFINITIONS OF THE SYMBOLS USED Read this use and maintenance manual carefully before performing any repairs on the chiller. Warnings of a general character; risk of danger or possibility of damaging the machine, pay particular attention to the phrase following this symbol. Risk of electrical danger;... -
Page 7: Warnings
This chiller has been carefully designed and constructed to be environmentally friendly: • Refrigerants without CFC; • Expanded foam insulation without CFC; • Energy-saving techniques; • Reduced noise; • The chiller and its packing materials are recyclable. In order not to hinder our efforts, the user is required to obey the simple ecological warnings indicated by this symbol. -
Page 8: Instructions For Using Equipment Under Pressure Conforming To Ped Directive 2014/68/Eu
NSTRUCTIONS FOR USING EQUIPMENT UNDER PRESSURE CONFORMING TO PED D 2014/68/EU IRECTIVE The proper use of equipment under pressure is an essential prerequisite for ensuring safety. To this end, the user must proceed as follows: • Use the equipment properly within the temperature limits shown in the opera ting limits stated on the manufacturer’s name/data plate;... -
Page 9: Operation And Main Components
PERATION OMPONENTS 2.1 R EFRIGERANT CIRCUIT QBS chillers use a vapour-compression cycle in a refrigerant circuit that essentially consists of the following components: evaporator, compressor, condenser, lamination device (capillary tube). Evaporator: heat exchanger (tube and fins) to enable heat exchange between the water and the refrigerant liquid without them coming into contact with each other. -
Page 10: Control Of The Water Temperature
2.5 C ONTROL OF THE WATER TEMPERATURE The purpose of the chiller is to maintain the temperature of the water produced within a desired interval as the load on the system varies; this is handled by an electronic controller and a temperature probe that turn the compressors on and off appropriately (see also sections 5.3) . -
Page 11: Spare Parts
2.8 S PARE PARTS Spare parts list is printed on a dedicated sticker applied inside the chiller. On this sticker each spare part is identified with its ID Number and related Spare Part Number. Here below the cross reference table between ID Number and exploded drawings Ref. With their description and quantity installed inside chillers. -
Page 12: Installation
NSTALLATION 3.1 T RANSPORT The units are supplied packed in a cardboard box on a wooden pallet. After checking that the packing is undamaged, position the unit near the installation site and unpack Always keep the chiller vertical: turning it upside down can irreparably damage several parts of the unit. -
Page 13: Installation Spaces
• The solidity of the support surface; • Avoid any obstacles to the flow of the fan which could cause the recirculation of air to the condenser; • Avoid the possible reflection of sound waves: (do not install in narrow or tight spaces); •... -
Page 14: Recommended Water System
We recommend an extraordinary cleaning of the mechanical water filter after the machine has been running for the first week (also see Chapter 8 Maintenance, inspections and periodic checks). Warning! No naked flames should be used during water connection operations, in the vicinity of or inside the unit. -
Page 15: Use Of Ethylene Glycol As A Winter Anti-Freeze
Thermometer Mechanical filter System/unit discharge Pressure gauge 3.4.2 Use of ethylene glycol as a winter anti-freeze Instead of emptying the system in the winter, you can charge the syste m with a mixture of water and a suitable percentage of ethylene glycol, chosen as a function of the lowest expected temperature of the outside air. -
Page 16: Electrical Connections
3.5 E LECTRICAL CONNECTIONS The machine must be connected to the electricity following the electrical diagram and conforming to the current laws and regulations in the place of installation. • The voltage, frequency and number of phases must conform to the data shown on the machine's identification plate;... -
Page 17: Preliminary Checks And Start-Up
RELIMINARY HECKS TART 4.1 P RELIMINARY CHECKS AND PREPARATION FOR THE FIRST START Before starting up the unit, it is a good idea to do the following: • Check that the water shut-off valves are open; • Verify the regular water level in the tank; Attention! Make sure that the tube that draws the inlet water to the pump is almost always fluid-filled. -
Page 18: Electronic Controller - Qbs Standard
– QBS LECTRONIC ONTROLLER STANDARD The QBS 001÷002 electronic controller: • Displays the temperature of the water exiting the water chiller; • Enables the required temperature of the chilled water to be set (set point); • Enables compressor activation and deactivation (standby); •... -
Page 19: Turning On And Off
The display shows alarms like in the following table. Sign Description Type of rearm Multifunction input alarm Manual Pressure switch alarm Probe AI1 failure Automatic Probe AI2 failure Automatic Minimum temperature AI1 probe - Antifreeze Automatic Maximum temperature AI1 probe Automatic Superheated condenser Automatic... -
Page 20: Locking And Unlocking The Keyboard
5.6 L OCKING AND UNLOCKING THE KEYBOARD To lock the keyboard proceed as follow: • Make sure that the keyboard is not locked and that no procedure is in progress; • Do not operate for 60 seconds: the display will show the message for 1 second and the ”Loc”... -
Page 21: Autoadaptive Controller - Qbs With Eaa Option
After setting the parameter, suspend power supply flow to the device. – QBS UTOADAPTIVE ONTROLLER WITH OPTION The QBS 001÷002 electronic controller: • Displays the temperature of the water exiting the water cooler; • Enables the required temperature of the chilled water to be set (set point); •... -
Page 22: Controlling Water Temperature - Standard Setting
6.3 C – S ONTROLLING WATER TEMPERATURE TANDARD SETTING The QBS’s electronic controller regulates the outlet water temperature in function of the ambient temperature. The working setpoint will be relative to the temperature read by probe or temperature read by probe 1 – working setpoint (without sign). 6.4 C HANGING THE SET POINT Make sure the keyboard is not locked and no procedure is running. -
Page 23: Locking/Unlocking The Keyboard
6.7 L OCKING NLOCKING THE KEYBOARD Make sure the keyboard is not locked and no procedure is running. • Press 2 seconds: the display will show 1 second. “Loc” If the keyboard is locked, you will not be allowed to: •... -
Page 24: Table Of Standard Parameters Configuration
6.10 ABLE OF STANDARD PARAMETERS CONFIGURATION Below there is a table of most important parameters and their factory setting. To modify the parameter contact our company. Parameter Function Factory setting Working setpoint 0°C//32°F Working setpoint differential Minimum working setpoint 0°C//32°F Maximum working setpoint 25°C//77°F Type of working setpoint:... -
Page 25: Calibration Of The Safety Devices And Type Of Rearm
Safety Devices QBS chillers have a series of safety devices that limit the machine's temperature and pressure values to ensure that it operates within the expected limits and to avoid dangerous situations. Here is a list of dangerous situations, including the relative safety devic e and its location. Dangerous situation Safety device Location... -
Page 26: Rearming The High-Pressure Pressure Switch
6.2 R EARMING THE HIGH PRESSURE PRESSURE SWITCH The intervention of the high-pressure pressure switch is the only case in which, in addition to manually rearming the electronic controller, it is also necessary to reset the pr essure switch itself. The high-pressure pressure switch is located in the compressor compartment on the uninsulated copper pipe that goes from the compressors to the condensation coil;... -
Page 27: Operating Limits
PERATING IMITS The graphs show the limits for continuous operation of the QBS units, in relation to the temperature of the water exiting the machine, and the temperature of the external air. QBS 001÷002 SEPR - SEASONAL ENERGY PERFORMANCE RATIO ACCORDING TO COMMISSION REGULATION (EU) 2016/2281 Only for units at 50Hz power supply. -
Page 28: Maintenance, Inspections And Periodic Checks
AINTENANCE NSPECTIONS ERIODIC HECKS To keep the machine running properly and providing the guaranteed performance required, it is necessary to make some periodic checks. Operation Frequency Execution Check that the temperature of the water produced is in the Daily required interval Check tank water level using level indicator –... -
Page 29: Troubleshooting
ROUBLESHOOTING Cause Alarm or symptom Solution Execution 1. The unit does not start User Contacts of the main differential Electronic controller Close the contacts switch are open User Unit's electrical panel cut-off switch Electronic controller Close the contacts is open The compressor icon on the display of the Compressor timer active... - Page 30 Cause Alarm or symptom Solution Execution 4. Intervention of the high pressure pressure switch Remove dirt from the condenser and any obstacles to the flow of air. Wait for the pressure to drop below the Condenser obstructed or User reset value, then rearm the insufficient air flow-capacity high-pressure pressure switch by pressing the button on top...
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Page 31: Dismantling The Chiller
ISMANTLING HILLER If the chiller is being dismantled, you must separate it into parts of homogeneous material. The following table lists the main materials of the various components of the machine. Part Material Refrigerant fluid R134A, Oil Panelling and supports Carbon steel, epoxy paint Chiller compressor Steel, Copper, Aluminium, Oil... -
Page 32: Water Diagrams
ATER IAGRAMS QBS 001÷002 7425MUM651 Model: QBS - Use and Maintenance Manual Rev. 02... -
Page 33: Refrigerant Diagrams
EFRIGERANT IAGRAMS QBS 001÷002 7425MUM651 Model: QBS - Use and Maintenance Manual Rev. 02... -
Page 34: Dimensional Drawings
IMENSIONAL RAWINGS QBS 001÷002 50Hz QBS 001÷002 60Hz 7425MUM651 Model: QBS - Use and Maintenance Manual Rev. 02... - Page 35 COOLING SOLUTIONS 3770B Laird Road, Mississauga ON. L5L 0A7 Tel: 800-951-0777 905-820-3348 Fax: 905-820-3490 www.cagcooling.com...
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