Related Manuals for York YLHA 50
Summary of Contents for York YLHA 50
- Page 1 Air-condensed water chillers and heat pumps YLHA 50, 60 and 80 User manual Ref.: N-40290_EN 1110...
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Page 2: Table Of Contents
User manual ..........................1 General description of the unit....................2 1.1.1 Models available and capacities....................2 1.1.2 Technical specifications......................3 Operating instructions µC2 (YLHA 50, 60 and 80)..............7 1.2.1 General diagram........................9 1.2.2 Symbols on the display......................10 1.2.3 Location of controls (YLHA 50, 60 and 80)................11 1.2.4... -
Page 3: User Manual
User manual... -
Page 4: General Description Of The Unit
YLCA 80 YLCA 100 YLCA 120 YLCA 150 model Cooling ca‐ 39,6 52,1 60,5 77,6 pacity Heat pump YLHA 40 YLHA 50 YLHA 60 YLHA 80 YLHA 100 YLHA 120 YLHA 150 model Cooling ca‐ 37,8 60,5 72,2 pacity Heating ca‐... -
Page 5: Technical Specifications
User manual General description of the unit 1.1.2 Technical specifications These units are supplied completely factory-assembled and with all refrigerant tubing and wiring ready for installation on site. After mounting, these units must go through an operational test with water. Re‐ frigerant leaks will also be checked during this process. - Page 6 User manual General description of the unit Hydro kit (pack) These units include a pack assembled with the components of a hydro kit. This assembly is located within the unit frame and does not increase the footprint of same. It includes the following components: Lined buffer tank and with an antifreeze heater, centrifugal pump, expansion vessel charged with nitrogen at 1.5 bar, safety valve set to 6 bar, water circuit, pressure gauge, two air bleed valves, filling valve and drain valve.
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Page 7: Options And Accessories
User manual General description of the unit Options and accessories Units without hydro kit This includes the elements described in the previously mentioned specifications, less the hydro kit (pack). The water circuit includes an air bleed valve. Connections are ready for on-site installation. Two pumps Accessory available with models 50 to 150 with hydro kit. - Page 8 User manual General description of the unit Antivibratory supports Whenever necessary to reduce vibrations and noise produced by the unit to a maximum, a set of steel spring antivibratory supports can be used. These should be installed between the chassis support of the unit and the base or floor on which it is to sit.
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Page 9: Operating Instructions Μc2 (Ylha 50, 60 And 80)
User manual Operating instructions µC2 (YLHA 50, 60 and 80) 1.2 Operating instructions µC2 (YLHA 50, 60 and 80) DESCRIPTION OF THE CONTROL UNIT This is a multipurpose controller specially programmed for use with air-water chillers and heat pumps equipped with a tandem compressor, two power stages and a single cooling circuit. - Page 10 User manual Operating instructions µC2 (YLHA 50, 60 and 80) User Level Accessible with password 22. Allows access to all parameters the user normally sets. Direct Level Accessible without a password. Allows for reading of the values detected by the sensors, as well as other system values.
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Page 11: General Diagram
User manual Operating instructions µC2 (YLHA 50, 60 and 80) 1.2.1 General diagram µchiller Neutral µchiller (expansion) Phase Four-way valve Water inlet temperature sensor (Control set point) Water outlet temperature sensor (Antifreeze pro‐ Pump tection) Heater Outdoor temperature sensor (Dynamic set point) Radiometric pressure sensor (Fan speed and de‐... -
Page 12: Symbols On The Display
User manual Operating instructions µC2 (YLHA 50, 60 and 80) 1.2.2 Symbols on the display The display has three figures in green, plus the sign and one decimal. It also shows the symbols of the functions selected in orange (the alarm symbol is red). -
Page 13: Location Of Controls (Ylha 50, 60 And 80)
User manual Operating instructions µC2 (YLHA 50, 60 and 80) 1.2.3 Location of controls (YLHA 50, 60 and 80) Fan heat switch (TK1, TK2, Pump TK3) Compressor 1 heat switch Low-pressure switch (A3) (LP) Compressor 2 heat switch Compressor 1 (M1) (A4) Fan ‑1 (M3, M4, M5) -
Page 14: Parameters Relating To Sensors
User manual Operating instructions µC2 (YLHA 50, 60 and 80) 1.2.4 Parameters relating to sensors Parameters relating to sensors Display Description Level Unit Max. Min. Value NTC B1 sensor (water inlet): 0= Absent (function not available 1 (R/W) 1= Present... -
Page 15: Parameters Relating To The Compressor
User manual Operating instructions µC2 (YLHA 50, 60 and 80) 1.2.5 Parameters relating to the compressor Parameters relating to the compressor Display Description Level Unit Max. Min. Value Minimum operating time 25 (R/W) Seconds Minimum stoppage time 26 (R/W) Seconds... -
Page 16: Operating Graphics
User manual Operating instructions µC2 (YLHA 50, 60 and 80) 1.2.6 Operating graphics Min. operating time of a compressor Signal Compressor Min. stoppage time of a compressor Signal Compressor Min. time between compressor start-ups Signal Compressor... - Page 17 User manual Operating instructions µC2 (YLHA 50, 60 and 80) Min. time between start-up of two compressors Signal 1 Compressor 1 Signal 2 Compressor 2 Time between stoppage of two compressors Signal 1 Compressor 1 Signal 2 Compressor 2 Compressor / pump stoppage delays...
- Page 18 User manual Operating instructions µC2 (YLHA 50, 60 and 80) Pump / compressor start-up delays Pump Compressor...
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Page 19: Parameters Relating To Fans
User manual Operating instructions µC2 (YLHA 50, 60 and 80) 1.2.7 Parameters relating to fans Parameters relating to fans Parameters Description Level Unit Max. Min. Value Fan outlet: 0= Absent (function not available) 10 (R/W) 1= Present Operating mode: 0= Always ON (function not available) -
Page 20: Parameters Relating To Defrost
User manual Operating instructions µC2 (YLHA 50, 60 and 80) 1.2.8 Parameters relating to defrost Parameters relating to defrost Parameters Description Level Unit Max. Min. Value Defrost operation: 0= Absent (function not available) 7 (R/W) 1= Present Defrost at time or temperature:... -
Page 21: Antifreeze Control Configuration Parameters
User manual Operating instructions µC2 (YLHA 50, 60 and 80) 1.2.9 Antifreeze control configuration parameters Antifreeze control configuration parameters Parameters Description Level Unit Max. Min. Value Antifreeze control set point temperature 11 (R/W) °C Antifreeze reset differential 12 (R/W) °K... -
Page 22: Unit Configuration Parameters
User manual Operating instructions µC2 (YLHA 50, 60 and 80) 1.2.10 Unit configuration parameters Unit configuration parameters Display Description Level Unit Max. Min. Value Unit model: 2= Water chiller 54 (R/W) 3= Air-water heat pump Number of vent circuits (do not modify this parameter) 12 (R/W) No. -
Page 23: Alarm Configuration Parameters
User manual Operating instructions µC2 (YLHA 50, 60 and 80) 1.2.11 Alarm configuration parameters Alarm configuration parameters Parameters Description Level Unit Max. Min. Value Alarm delay by flow switch at start-up. 63 (R/W) Seconds Alarm delay by flow switch with unit in operation. -
Page 24: Controller Configuration Parameters
User manual Operating instructions µC2 (YLHA 50, 60 and 80) 1.2.12 Controller configuration parameters Controller configuration parameters Display Description Level Unit Max. Min. Value Cool cycle set point temperature 41 (R/W) °C Cool set point temperature differential 42 (R/W) °C... -
Page 25: Alarm Table
User manual Operating instructions µC2 (YLHA 50, 60 and 80) 1.2.13 Alarm table Alarm table Display Alarm type Reset Antifreeze alarm Manual High temperature at start-up (if activated, P20=1) Automatic Low temperature at start-up (if activated, P20=1) Automatic d1-2 Defrost operating... -
Page 26: Functions
User manual Operating instructions µC2 (YLHA 50, 60 and 80) 1.2.14 Functions Alarm reset Pressing the UP and DOWN keys for 5 seconds cancels alarms present in the memory. At the same time, the alarm message disappears from the display and the alarm relay is deactivated. -
Page 27: Regular Maintenance Activities For Which The User Is Responsible
User manual Regular maintenance activities for which the user is responsible 1.3 Regular maintenance activities for which the user is respon‐ sible 1.3.1 Maintenance Schedule The air conditioning unit is designed to require as little maintenance as possible. Nevertheless, to ensure smooth operations with a minimal use of electricity, a long working life and compliance with the regula‐... - Page 28 User manual Regular maintenance activities for which the user is responsible D A N G E R It is strictly prohibited for the user to carry out any maintenance or upkeep tasks on the HVAC unit. This appliance is not destined for use by people (including children) with limited physical, sensorial or mental capacities, or without adequate experience or knowledge, unless they have received instructions or been supervised in the use of the appliance by an individual responsible for their safety.