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Summary of Contents for Hitecsa mKr3Bi 17
- Page 1 µKr3Bi Heat Pump REVERSIBLE WATER CHILLERS – AXIAL FANS AIR CONDITIONING mini Range: MINI KRONO INVERTER 17 │23 │30 │38 │ Models: IOM_µKr3Bi_17a38_208537_210712_EN...
- Page 2 Thank you for trusting the Hitecsa Products. Our company has been offering the market an extended range of specialized equipment for air conditioning and cooling installations for over 35 years. Our approach is based on efficiency, flexibility and on practical solutions.
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Page 3: Table Of Contents
µKr3Bi / Mini K RONO INDEX INTRODUCTION........................4 REGULATIONS AND CERTIFICATIONS ................6 SAFETY PRECAUTIONS ...................... 7 TECHNICAL SPECIFICATIONS ................... 9 OPERATION LIMITS ......................11 TRANSPORT ........................12 INSPECTION AT RECEPTION ...................... 12 LIFTING ............................12 STORAGE ............................. 12 INSTALLATION ........................13 DIMENSIONS .......................... -
Page 4: Introduction
mini Kr3Bi µ REVERSIBLE WATER CHILLER VARIABLE AXIAL FAN INTRODUCTION Purpose of this Manual The present manual together with any other technical document such as refrigeration or hydraulic lines drawings and electrical diagrams among others have been issued to provide the necessary information for installation, start-up and maintenance of the unit. - Page 5 mini Kr3Bi µ REVERSIBLE WATER CHILLER VARIABLE AXIAL FAN INTRODUCTION Periodic Inspections and Maintenance Carry out periodic inspections to detect possible damaged or broken parts. If these parts are not repaired, people injuries or material damages could be caused. Disconnect the power supply of the unit before carrying out any maintenance operation.
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Page 6: Regulations And Certifications
CE MARKING: Our products are CE marked according to the essential requirements of the applicable EC directives and their last modifications and comply with the national legislation of each country. EUROVENT CERTIFICATION: HITECSA participates in the EUROVENT Certification program. Please check which models are certified on the web. -
Page 7: Safety Precautions
mini Kr3Bi µ REVERSIBLE WATER CHILLER VARIABLE AXIAL FAN SAFETY PRECAUTIONS Before starting any installation, service or maintenance operation, turn off the main power switch in order to avoid electrical shock that may cause personal damages. In case of folding electrical panels, before folding them up in order to access to the interior of the machine, it is MANDATORY to disconnect the power supply hose from the electrical voltage, THE LINE MUST ALWAYS BE FREE OF VOLTAGE for this operation. - Page 8 mini Kr3Bi µ REVERSIBLE WATER CHILLER VARIABLE AXIAL FAN SAFETY PRECAUTIONS ATTENTION! Only qualified and well-trained service staff (technical service) is authorized to carry out installation, commissioning and maintenance. Unqualified personnel will carry out basic tasks only such as cleaning and replacement of filters, or filter cleaning (excluding the refrigerant filters), etc…...
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Page 9: Technical Specifications
mini Kr3Bi µ REVERSIBLE WATER CHILLER VARIABLE AXIAL FAN TECHNICAL SPECIFICATIONS µKr3Bi KRONO3 CAPACITIES (1) COOLING CAPACITY AIR-WATER (35°c-12/7°c: UNE- EN_14511) Net cooling capacity 17.7 22.7 30.1 36.0 Total effective power 6.21 8.12 10.76 12.88 2.80 2.80 2.80 2.70 Cold water flow m³/h Available pressure SEER... - Page 10 mini Kr3Bi µ REVERSIBLE WATER CHILLER VARIABLE AXIAL FAN TECHNICAL SPECIFICATIONS µKr3Bi OUTDOOR EXCHANGER Type Coil of copper tubes and aluminium fins Number Unit Condensate drain connection Ø 3/4" OUTDOOR FAN Type AXIAL EC Total number Unit Air flow m³/ h 12,300 13,800 18,300...
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Page 11: Operation Limits
mini Kr3Bi µ REVERSIBLE WATER CHILLER VARIABLE AXIAL FAN OPERATION LIMITS COOLING MODE Outlet water temperature (°C) Limit without antifreeze: 6°C Activation of the antifrost alarm when the water temperature is below or equal to 5°C and no antifreeze has been added. HEATING MODE Outlet water temperature (°C) IOM_µKr3Bi_17a38_208537_210712_EN... -
Page 12: Transport
Verify the correct voltage on the nameplate and make sure it is in accordance with the local power supply. In case of any flaw or anomaly detected, please contact HITECSA. LIFTING Before moving the unit, make sure that all panels are fixed properly. -
Page 13: Installation
mini Kr3Bi µ REVERSIBLE WATER CHILLER VARIABLE AXIAL FAN INSTALLATION DIMENSIONS Models 17 – 23 1. Water inlet Unit: mm 2. Water outlet 3. Electrical box 4. Fan power box 5. Main switch 6. Electrical connection inlet 7. Drainage point IOM_µKr3Bi_17a38_208537_210712_EN... - Page 14 mini Kr3Bi µ REVERSIBLE WATER CHILLER VARIABLE AXIAL FAN INSTALLATION - DIMENSIONS Models 30 – 38 1. Water inlet 2. Water outlet Unit: mm 3. Electrical box 4. Fan power box 5. Main switch 6. Electrical connection inlet 7. Drainage point IOM_µKr3Bi_17a38_208537_210712_EN...
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Page 15: Weight Distribution
mini Kr3Bi µ REVERSIBLE WATER CHILLER VARIABLE AXIAL FAN INSTALLATION WEIGHT DISTRIBUTION WEIGHT DISTRIBUTION (kg) MODEL Total IOM_µKr3Bi_17a38_208537_210712_EN... -
Page 16: Installation Site
mini Kr3Bi µ REVERSIBLE WATER CHILLER VARIABLE AXIAL FAN INSTALLATION INSTALLATION SITE Read and comply with the local rules and regulations applying to the installation of air conditioning systems. Choose a clean place without dust nor debris. Remain within the appropriate service area of the equipment. -
Page 17: Installation Of Water Pipes
mini Kr3Bi µ REVERSIBLE WATER CHILLER VARIABLE AXIAL FAN INSTALLATION INSTALLATION OF WATER PIPES The selection of the components and the installation shall be made by a qualified installer according to the valid local legislation and the good practice rules. Make sure that you are aware of all the local rules and regulations for hydraulic installations and that you comply with them. -
Page 18: Addition Of Glycol
The position shall be at 60 cm to the flow switch and 50 cm after it so that a laminar flow is secured. If you use a flow switch from another supplier (not delivered by Hitecsa), refer to the instructions of the producer and respect the dimensions as previously stated. -
Page 19: Security Devices Mounted In The Unit
3 times the diameter of the tube. Do not install any other component or accessory on that tube. If you use a flow switch from another supplier (not delivered by Hitecsa), refer to the instructions of the producer and respect the dimensions as previously stated. -
Page 20: Refrigerant Diagram
mini Kr3Bi µ REVERSIBLE WATER CHILLER VARIABLE AXIAL FAN INSTALLATION REFRIGERANT DIAGRAM Accesory (compulsory): IOM_µKr3Bi_17a38_208537_210712_EN... -
Page 21: Electrical Connection
The unit power supply should be within 10% of volts indicated on the unit nameplate. Damage caused by the start-up of the unit in an incorrect voltage line is not covered by the Hitecsa’s warranty. Always refer to the unit wiring diagram when making electrical connections. -
Page 22: Interface Connection
mini Kr3Bi µ REVERSIBLE WATER CHILLER VARIABLE AXIAL FAN INSTALLATION INTERFACE CONNECTION The standard Mini PGD terminal is fitted from factory in the door of the electric box. Connection to the board with a 6-wire telephone cable (RJ12) at a max. 50 m distance. Connection between several boards with a shielded pair. -
Page 23: Operation
mini Kr3Bi µ REVERSIBLE WATER CHILLER VARIABLE AXIAL FAN OPERATION BEFORE START-UP Make sure that all the electrical connections are tight. Make sure that the panels are firmly secured with screws. Check that there is no leakage of oil or refrigerant. ... -
Page 24: Thermostat And Controller
mini Kr3Bi µ REVERSIBLE WATER CHILLER VARIABLE AXIAL FAN OPERATION THERMOSTAT AND CONTROLLER The W-HiReg controller is meant to optimising the water chiller performance (cooling only or heat pump) and comprises three parts: 1. Input/output board or electronical device, built in the equipment. 2. -
Page 25: User Interface
mini Kr3Bi µ REVERSIBLE WATER CHILLER VARIABLE AXIAL FAN OPERATION – THERMOSTAT AND CONTROL Access to the parameters, variables, configuration etc. through the keyboard and display of the THERMOSTAT or the user interface through BMS or through the internet network with a WEB server. USER INTERFACE KEYS ALARM KEY: Press to display the alarms on the screen. -
Page 26: User Menus
mini Kr3Bi µ REVERSIBLE WATER CHILLER VARIABLE AXIAL FAN OPERATION - THERMOSTAT AND CONTROL USER MENUS The symbol that represents one of the available menus is displayed in the lower right corner. Scroll through the various available menus by pressing the up or down arrow keys. Press “Enter” to access the displayed menu. If you need to see/modify a value or a parameter, scroll through the menu until you reach the display that includes the required value. - Page 27 mini Kr3Bi µ REVERSIBLE WATER CHILLER VARIABLE AXIAL FAN OPERATION - – USER MENUS THERMOSTAT AND CONTROL TIME SCHEDULE menu In addition to the mentioned basic operation modes, we will be able to choose between other minor level modes from the time schedule menu.
- Page 28 mini Kr3Bi µ REVERSIBLE WATER CHILLER VARIABLE AXIAL FAN OPERATION - – USER MENUS THERMOSTAT AND CONTROL Setpoints menu and press “Enter”. Select The temperature setpoints can be modified for both operation modes. Operation modes: The main two operation modes are the Cooling mode and the Heating mode. Both modes have three operation levels that apply a compensation to the values of the temperature setpoints.
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Page 29: Main Menu / Service
mini Kr3Bi µ REVERSIBLE WATER CHILLER VARIABLE AXIAL FAN OPERATION - THERMOSTAT AND CONTROL MAIN MENU / SERVICE Enter the main menu by pressing the programmation key “ ”. The program requires a password to continue. The valid password for maintenance (only for installation) is “1996”. MASTER-SLAVE CONFIGURATION For connection of 2 to 5 units between each other, the installer will need to configurate one of them as the “Master”... -
Page 30: Menu Of Alarms
mini Kr3Bi µ REVERSIBLE WATER CHILLER VARIABLE AXIAL FAN OPERATION - – MASTER / SLAVE THERMOSTAT AND CONTROL Register the remaining units as Slave by connecting the PGD in each unit: select Slave in the “MS Type” cell and allocate a different “ID Slave”... -
Page 31: Description Of The Alarm Messages
mini Kr3Bi µ REVERSIBLE WATER CHILLER VARIABLE AXIAL FAN OPERATION - – ALARMS THERMOSTAT AND CONTROL DESCRIPTION OF THE ALARM MESSAGES LEGEND ALARM SOURCES Probe error Err. Snd. Digital input error COMPRESSOR ENVELOPE Error ENV. Valve error ALARM MESSAGES ACTION Reset Alarm Prb. - Page 32 mini Kr3Bi µ REVERSIBLE WATER CHILLER VARIABLE AXIAL FAN ALARM MESSAGES ACTION Warning antifrost Warning and unit stops, pump and resistances start-up. Alarm antifrost Circ.1 Circuit nº1 stops, pump maintained and start-up of resistances Alarm High discharge pressure Circ.1 Circuit nº1 stops Alarm Low suction pressure Circ.1 Circuit nº1 stops Alarm Min.
- Page 33 mini Kr3Bi µ REVERSIBLE WATER CHILLER VARIABLE AXIAL FAN ALARM MESSAGES ACTION ZiehlFan MB 1 - Direction Error Fan stops ZiehlFan MB 1 - Limitations active Fan stops ZiehlFan MB 2 - Comunication Error Fan stops ZiehlFan MB 2 - Motor Start Error Fan stops ZiehlFan MB 2 - Temperature Error Fan stops...
- Page 34 mini Kr3Bi µ REVERSIBLE WATER CHILLER VARIABLE AXIAL FAN ALARM MESSAGES ACTION ZiehlFan MB 4 - Line Fault Fan stops ZiehlFan MB 4 - UIN LO Fan stops ZiehlFan MB 4 - UIN HI Fan stops ZiehlFan MB 4 - UZK LO Fan stops ZiehlFan MB 4 - UZK HI Fan stops...
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Page 35: Maintenance
mini Kr3Bi µ REVERSIBLE WATER CHILLER VARIABLE AXIAL FAN MAINTENANCE WARNING! Before completing any service or maintenance operation, turn the main power switch off to avoid any personal injuries. Lock it so that nobody else than a qualified technician can switch it on. Before opening the electrical panel and having access to the inside of the machine, it is MANDATORY to disconnect the power supply hose of the machine which MUST BE FREE OF VOLTAGE for this operation. - Page 36 mini Kr3Bi µ REVERSIBLE WATER CHILLER VARIABLE AXIAL FAN MAINTENANCE Plate Heat exchanger: Check the inlet and outlet temperature, verify the water flow and all the safety systems. The heat exchanger shall be cleaned at least once a year. Proceed to cleaning by making cleaning liquid circulate inside the exchanger.
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Page 37: Lubrication
mini Kr3Bi µ REVERSIBLE WATER CHILLER VARIABLE AXIAL FAN MAINTENANCE Fans: Control that device regularly. Frequency of inspection will depend on the level of dirt that will be observed on the propellers, the turbine, etc. Check the direction of rotation of the fans, verify their carriers. Check the transmission elements and the operation status. -
Page 38: Fan With Ec Motor
mini Kr3Bi µ REVERSIBLE WATER CHILLER VARIABLE AXIAL FAN MAINTENANCE FAN WITH EC MOTOR The use of capacitors implies a danger of death even after switching the device off in case of direct contact with conductive parts or with parts that carry voltage due to fault conditions. Removing or opening the housing of the controller and the terminal box for example is only permitted after the power supply cable has been disconnected for 3 minutes. -
Page 39: Outdoor Fans With Pkdm / Pkdt (Option)
mini Kr3Bi µ REVERSIBLE WATER CHILLER VARIABLE AXIAL FAN MAINTENANCE OUTDOOR FANS WITH PKDM / PKDT (OPTION) Internal State Led, Diagnosis through flash codes Reaction of the controller LED code Relay K1 Explanation Omission of the error Does not receive voltage No voltage on the network When the voltage of the Terminals 11-12 bypassed... -
Page 40: Special Instructions For R32 Refrigerant
mini Kr3Bi µ REVERSIBLE WATER CHILLER VARIABLE AXIAL FAN MAINTENANCE OUTDOOR FANS WITH PKDM / PKDT (OPTION) Reaction of the controller LED code Relay K1 Explanation Omission of the error Open Heat sink sensor The supervision of the power Terminals 11-14 bypassed Interrupted the cable to the semiconductor temperature sensor on the heat sink. - Page 41 mini Kr3Bi µ REVERSIBLE WATER CHILLER VARIABLE AXIAL FAN MAINTENANCE Controls - Before any operation, use a special detector of inflamable refrigerants to inspect the area. - Please make sure that the clearing distances around the unit are respected according to the “SERVICE AREA” section of the present manual.
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Page 42: Options / Accessories
○ ○ ○ PGD controller interface ● ● ● ● Time schedule Control of the return water temperature CONTACT HITECSA ● ● ● ● Control of the supply water temperature ● ● ● ● Economymode (double setpoint) by digital input ●... - Page 43 Translation of the original instructions. Subject to modifications without prior notice.
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