York YLCA 7 Manuale Utente

Air-condensed water chillers andheat pumps YLCA / YLHA 100, 120and 150User manualRef.: N-40291_EN 1110

Analogue inputsB3 ‑ J2 Coil pressure circuit 1B4 ‑ J3 Coil pressure circuit 2B5 ‑ J4/13 Water temperature at exchanger inletB6 ‑ J4/12 Water temperatu

System componentsThe system is made up of the following basic components:• Touch screen• µC3 controller• Fan speed controllers (FSC1 and FSC2)• Pressu

Sensors and probesPressure sensors (B3 and B4)One for each cooling circuit and connector to the coil collectors. They provide information to the syste

General diagram, (YLCA / YLHA 100,120 and 150)A Keyboard ‑ display terminal U Water outletB Programme download key V Water inletD/J/C/I Comp. 1/ Comp.

Start-upAbout 45 seconds after powering the unit, the start-up display is activated.Default language: English.1st Display. START-UP(information on wat

-/- Configuration of sensorsDescription Range Units ValueSensor B3 calibration. Coil pressure circuit 1 -9,9/9,9 bar 0Sensor B4 calibration. Coil pr

-C- Compressor configurationDescription Range Units ValueMin. operating time of a compressor 0 / 9999 Seconds 120Min. stoppage time of a compressor 0

-F- Condensation (fans)Description Range Units ValueType of fan control Temp. pressure ON/OFF - PressureNo. of condensers 1-2 - 2Control deviceFans -I

-H- Unit configurationDescription Range Units ValueUnit type 0 ‑ 7 -2 (COOLER)3 (HEAT PUMP)Number of compressors/circuits - 4 / 2Compressor rotation

-B- Inputs/OutputsDescription Range Units ValueAnalogue input 3. Coil pressure circuit 1 (B3) bar INSTANT READ OUTAnalogue input 4. Coil pressure ci

Index1 User manual ...11.1 Ge

-P- AlarmsDescription Range Units ValueHigh-pressure alarm set point (transducer B3; B4) 0 / 99,9 bar 41High-pressure alarm differential (transducer B

µC3 functionsF-r. Software version / Language selection• Read out of the µC3 software version and update date.• The Up, Down and Enter keys select the

STPMSet point TVDPhase input/output timevariation differentialRBM Control band HTONStage activation maxi‐mum time delayNZ Neutral zone LTONStage a

• 4-way valves (N13 and N14)• Fans (Y3 and Y4)DefrOff Defrost end pressure DefrAct Defrost activeDefrOn Defrost start pressure t Timet 1...3Partial t

Second pumpA second pump can be enabled by means of the -H-unit config menu. To do this, install the contactor(pump 230-1-50) between terminals N8-N,

Alarm tableDescription Input Off circ.1 Off circ.2 Off fan Off pump Off sys Reset Delay NotesSerious alarm FC, PG ID1 X MANUAL -generalPhase

Description Input Off circ.1 Off circ.2 Off fan Off pump Off sys Reset Delay NotesCompressor 3 mainte‐nanceSystem MANUAL Set period inC

Temperature/resistance properties of NTC control sensors (10kOhms)Temperature[°C]Resistance[kOhms]Temperature[°C]Resistance[kOhms]Temperature[°C]Resis

Maintenance responsibilities of the userLike any other machine, the HVAC unit requires regular maintenance, as the wear to which some of itsparts are

1User manual

1.1 General description of the unitThe YLCA/YLHA units are high-performance air-water chillers and heat pumps using R-410A ecologicalrefrigerant.These

1.1.2 Technical specificationsThese units are supplied completely factory-assembled and with all refrigerant tubing and wiring readyfor installation o

Hydro kit (pack)These units include a pack assembled with the components of a hydro kit. This assembly is located withinthe unit frame and does not in

Options and accessoriesUnits without hydro kitThis includes the elements described in the previously mentioned specifications, less the hydro kit (pac

Antivibratory supportsWhenever necessary to reduce vibrations and noiseproduced by the unit to a maximum, a set of steelspring antivibrator

1.1.3 Operating instructions µC3 (YLCA / YLHA 100, 120 and 150)This is a specially programmed controller for air-water chillers and heat pumps with fo