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Summary of Contents for Hitecsa Kr3B 40
- Page 1 Kr3B Heat Pump REVERSIBLE WATER CHILLERS – AXIAL FANS 40 │45 │55 │65 │75 │85 │100 │120 │140 │160│190 │230 Models: IOM_Kr3B_40a230_208098_220704_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. This has been the hallmark of our product catalogue.
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Page 3: Table Of Contents
Kr3B REVERSIBLE WATER CHILLER VARIABLE AXIAL FAN INDEX INTRODUCTION ........................4 REGULATIONS AND CERTIFICATIONS ................6 SAFETY PRECAUTIONS ...................... 7 TECHNICAL SPECIFICATIONS ................... 9 – 3B M 75 ......................9 ODELS FROM 120 ......................11 MODELS FROM 3B - 140 230 ....................... -
Page 4: Introduction
Kr3B 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 Kr3B 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
Kr3B 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 that operation. - Page 8 Kr3B 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
Kr3B REVERSIBLE WATER CHILLER VARIABLE AXIAL FAN TECHNICAL SPECIFICATIONS Kr3B Models – from 40 to 75 Kr3B KRONO3 range CAPACITIES (1) COOLING CAPACITY AIR-WATER (35°c-12/7°c: UNE-EN_14511) Net cooling capacity 42.2 48.5 59.0 65.0 74.0 Total effective power 14.55 16.45 20.03 21.63 25.12 2.90... - Page 10 Kr3B REVERSIBLE WATER CHILLER VARIABLE AXIAL FAN TECHNICAL SPECIFICATIONS Kr3B OUTDOOR EXCHANGER Type Coil of copper tubes and aluminium fins Number Condensate drain connection Ø 3/4" OUTDOOR FAN Type AXIAL EC Total number Nominal power (one fan) 1.85 Air flow m³/ h 32900 37000...
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Page 11: Kr3B Models - From 85 To 120
Kr3B REVERSIBLE WATER CHILLER VARIABLE AXIAL FAN TECHNICAL SPECIFICATIONS Kr3B models - from 85 to 120 Kr3B KRONO3 range CAPACITIES COOLING CAPACITY AIR-WATER ( 35°c-12/7°c: UNE-EN_14511) Net cooling capacity 83.2 98.2 118.8 Total effective power 28.42 32.45 41.03 2.93 3.03 2.90 Cool water flow m³/h... - Page 12 Kr3B REVERSIBLE WATER CHILLER VARIABLE AXIAL FAN TECHNICAL SPECIFICATIONS Kr3B OUTDOOR EXCHANGER Type Coil of finned copper tubes and aluminium fins Number Condensate drain connection Ø 3/4" OUTDOOR FAN Type AXIAL EC Total number Nominal power (one fan) 2.50 3.10 Air flow m³/ h 51800...
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Page 13: Models Kr3B - 140 To 230
Kr3B REVERSIBLE WATER CHILLER VARIABLE AXIAL FAN TECHNICAL SPECIFICATIONS Models Kr3B - 140 to 230 Kr3B SERIE KRONO3 CAPACITIES (1) COOLING CAPACITY AIR-WATER ( 35°c-12/7°c: UNE-EN_14511) Net cooling capacity 142.8 155.0 189.5 232.9 Total effective power 48.98 52.90 64.24 81.00 2.92 2.93 2.95... - Page 14 Kr3B REVERSIBLE WATER CHILLER VARIABLE AXIAL FAN - Models Kr3B - 140 – 230 TECHNICAL SPECIFICATIONS Kr3B OUTDOOR EXCHANGER Type Coil of finned copper tubes and aluminium fins Number Condensate drain connection Ø 3/4" OUTDOOR FAN Type AXIAL EC Total number Air flow m³/ h 88600...
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Page 15: 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 16: Installation - Dimensions
Kr3B REVERSIBLE WATER CHILLER VARIABLE AXIAL FAN INSTALLATION - DIMENSIONS Models 40 – 75 1. Water inlet (standard) 1. Water inlet (with the buffer tank option) 2. Water outlet (standard) 2. Water outlet (with the buffer tank option) 3. Eletrical panel board 4. - Page 17 Kr3B REVERSIBLE WATER CHILLER VARIABLE AXIAL FAN INSTALLATION - DIMENSIONS Models 85 – 120 1. Water inlet (standard without option) 2. Water outlet (standard without option) 3. Electrical panel board 4. Main switch 5. Power supply inlet 6. Lifting lugs IOM_Kr3B_40a230_208098_220704_EN...
- Page 18 Kr3B REVERSIBLE WATER CHILLER VARIABLE AXIAL FAN INSTALLATION - DIMENSIONS Models 140 – 230 1. Water inlet (standard without option) 2. Water outlet (standard without option) 3. Electrical panel board 4. Main switch 5. Power supply inlet 6. Lifting lugs IOM_Kr3B_40a230_208098_220704_EN...
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Page 19: Installation Site
Kr3B 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 20: Distribution Of Weight
Kr3B REVERSIBLE WATER CHILLER VARIABLE AXIAL FAN INSTALLATION Distribution of weight WEIGHT DISTRIBUTION (kg) MODEL Total 1025 1040 WEIGHT DISTRIBUTION with Hydronic Kit (kg) MODEL Total 1265 1395 1400 WEIGHT DISTRIBUTION (kg) MODEL Total 1800 1850 1930 1980 WEIGHT DISTRIBUTION with Hydronic Kit (kg) MODEL Total 2140... -
Page 21: Installation
Kr3B 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 22: 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 23: Security Devices
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 24: Installation Limits
Kr3B REVERSIBLE WATER CHILLER VARIABLE AXIAL FAN INSTALLATION – WATER INSTALLATION Installation limits The Maximum volume of water depends on the expansion tank and the max.-min. operation temperature. INSTALLATION LIMITS Nominal water flow m³/ h 10.2 11.2 12.7 Minimum water flow m³/ h Maximum water flow m³/ h... -
Page 25: Refrigeration Diagram
Kr3B REVERSIBLE WATER CHILLER VARIABLE AXIAL FAN INSTALLATION REFRIGERATION DIAGRAM Kr3B - 40 to 45 Kr3B - 55 to 120 LEGEND: COMPRESSOR WATER CIRCULATION PUMP 4-WAY VALVE EEV. ELECTRONIC EXPANSION VALVE VÁLVULA de EXPANSIÓN HIGH PRESSURE SWITCH VÁLVULA ANTIRRETORNO DIFFERENTIAL PRESSURE SWITCH BIDIRECTIONAL FILTER PRESSURE TRANSDUCER LIQUID TANK (no fitted on Cooling Only models) -
Page 26: Kr3B - 140 To 230
Kr3B REVERSIBLE WATER CHILLER VARIABLE AXIAL FAN FT - WATER FILTER INSTALLATION – REFRIGERATION DIAGRAM Kr3B - 140 to 230 LEGEND: 1.1/2/3/4 COMPRESSOR WATER CIRCULATION PUMP 2. 4-WAY VALVE TEV. THERMAL EXPANSION VALVE 4. CHECK VALVE HIGH PRESSURE SWITCH 5. BIDIRECTIONAL FILTER DIFFERENTIAL PRESSURE SWITCH 6. -
Page 27: 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 28: Operation Limits
Kr3B REVERSIBLE WATER CHILLER VARIABLE AXIAL FAN OPERATION LIMITS COOLING mode 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 IOM_Kr3B_40a230_208098_220704_EN... -
Page 29: Operation
Kr3B 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 30: Maintenance
Kr3B 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 31 Kr3B 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 32: Lubrication
Kr3B 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 33: Troubleshooting
Kr3B REVERSIBLE WATER CHILLER VARIABLE AXIAL FAN MAINTENANCE Trouble shooting Type of error Possible cause Solution Failure line voltage. Failure of one Check line voltage. phase. Under – or overvoltage. Earth fault. Check motor connection and line voltage. Short circuit winding. Replace fan. - Page 34 Kr3B 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 35: Options / Accessories
PGD controller interface ● ● ● ● ● ● ● ● ● ● ● ● Time schedule Please contact Hitecsa Control of the return water temperature ● ● ● ● ● ● ● ● ● ● ● ● Control of the supply water temperature ○... -
Page 36: Hydronic Kit
Partial heat recovery system in Kr3B units, designed for the production of hot water between 35ºC and 70ºC, using the heat generated in the refrigerant-water heat exchanger. COMPONENTS INCLUDED EQUIPMENT (HITECSA) DSH Refrigerant-water heat exchanger (desuperheater) integrated in the discharge pipe. Ti/To Inlet and outlet temperature probes at the water side of the desuperheater. -
Page 37: Optional Accessories
Kr3B REVERSIBLE WATER CHILLER VARIABLE AXIAL FAN OPTIONAL / ACCESSORIES – PARTIAL HEAT RECOVERY OPERATION WITH V3V: When the Kr3B unit requires cooling, with at least one of the compressors running, the circulation pump (BP) will start. If, after a while, no signal is received from the flow switch (FS), the water pump will stop and an alarm signal will be emitted. -
Page 38: Hydraulic Diagram With Buffer Tank
Kr3B REVERSIBLE WATER CHILLER VARIABLE AXIAL FAN OPTIONS / ACCESSORIES Hydraulic diagram with buffer tank LEGEND: - Circulating pump OPTIONS - Buffer tank B3 - Reserve circulating pump - Plates heat exchanger Va - Check valve - Water pressure manometer Vc - Damper valve - Air drain - Drain tap... - Page 39 Kr3B REVERSIBLE WATER CHILLER VARIABLE AXIAL FAN IOM_Kr3B_40a230_208098_220704_EN Suject to modifications without previous notice.
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