Инструкция на Компактные чиллеры (тепловые насосы) с воздушным охлаждением конденсатора York серии YLCA / YLHA 100-120-150. Руководство пользователя.

Текст инструкции

1. Стр. 1 Air-condensed water chillers and

   heat pumps YLCA / YLHA 100, 120 and 150 User manual Ref.: N-40291_EN 1110

2. Стр. 4 1.1 General description of the unit

   The YLCA/YLHA units are high-performance air-water chillers and heat pumps using R-410A ecological refrigerant. These units are designed for air conditioning or industrial applications that require cold or hot water. They are silent and compact units, equipped with vertical air discharge axial fans…

3. Стр. 5 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. Sheet casing The units are made…

4. Стр. 6 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…

5. Стр. 7 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. The…

6. Стр. 8 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. This base must be solid and dimensioned in…

7. Стр. 9 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 four capacity stages. These are divided into two independent cooling circuits equipped with two tandems that act upon a common water circuit. Both systems are equipped with two fans each, the speed of which is…

8. Стр. 10 Analogue inputs

   B3 ‑ J2 Coil pressure circuit 1 B4 ‑ J3 Coil pressure circuit 2 B5 ‑ J4/13 Water temperature at exchanger inlet B6 ‑ J4/12 Water temperature at exchanger outlet Analogue outputs 8 Y3 Circuit 1 fan speed control (PWM) Y4 Circuit 2 fan speed control (PWM)

9. Стр. 11 System components

   The system is made up of the following basic components: • Touch screen • µC3 controller • Fan speed controllers (FSC1 and FSC2) • Pressure sensors (B3 and B4) • NTC sensors (B5 and B6) Touch screen This consists of a screen and six keys with the fol‐ lowing functions: • Alarm ‑2• Programming ‑1•…

10. Стр. 12 Sensors and probes

    Pressure sensors (B3 and B4) One for each cooling circuit and connector to the coil collectors. They provide information to the system for fan speed adjustment in the summer and winter cycles, management of defrosts in the heat pumps, prevent and lockout functions of the system by excessively high…

11. Стр. 13 General diagram, (YLCA / YLHA 100,120 and 150)

    A Keyboard ‑ display terminal U Water outlet B Programme download key V Water inlet X Fan protection 12 D/J/C/I Comp. 1/ Comp. 2 / Comp. 3 / Comp. 4 Y/A1/G1/ Protection comp. 1 / Protection comp. 2 / Protec‐ I1 tion comp. 3 / Protection comp. 4 E/H Pump 1/ Pump 2 K RS485 serial connection Z/H1 HP1 /…

12. Стр. 14 Start-up

    About 45 seconds after powering the unit, the start-up display is activated. Default language: English. 1st Display. START-UP (information on water temperature/unit status) • Water inlet temperature • Water outlet temperature • Unit status (ON/OFF) Press "down" to access the second display. 2nd…

13. Стр. 15 -/- Configuration of sensors

    Range Units Value Sensor B3 calibration. Description Coil pressure circuit 1 -9,9/9,9 bar 0 Sensor B4 calibration. Coil pressure circuit 2 -9,9/9,9 bar 0 Sensor B5 calibration. Inlet water temp. to exchanger. -9,9/9,9 K 0 Sensor B6 calibration. Outlet water temp. to exchanger. -9,9/9,9 K 0 Sensor B7…

14. Стр. 16 -C- Compressor configuration

    Range Units Value Min. operating time of a compressor Description 0 / 9999 Seconds 120 Min. stoppage time of a compressor 0 / 9999 Seconds 60 Start-up time between different compressors 0 / 9999 Seconds 3 Start-up time of one compressor 0 / 9999 Seconds 300 Start-up time between pump and compressor…

15. Стр. 17 -F- Condensation (fans)

    Description Type of fan control No. of condensers Range Units Value Temp. pressure ON/OFF - Pressure 2 1-2 - Fans - Inverter - Power supply frequency 50 / 60 Hz 50 PWM max. triac cut-off 0 / 100 % 92 PWM min. triac cut-off 0 / 100 % 35 Triac impulse duration 0 / 10 ms 2 Condensing pressure in summer…

16. Стр. 18 -H- Unit configuration

    Description Unit type Range 0‑7 Number of compressors/circuits Units Value - 2 (COOLER) 3 (HEAT PUMP) - 4/2 LIFO FIFO PERSONALISED TIME - FIFO No. of evaporators 1‑2 - 1 Driver number (EVD400) 0-1-2-4 - 0 Cycle inversion valve logic NO / NC - NC No. of pumps 1‑2 - 1 (SINGLE PUMP) 2 (TWO-PUMP…

17. Стр. 19 -B- Inputs/Outputs

    Units Value Analogue input 3. Coil pressure circuit 1 (B3) Description Range bar INSTANT READ OUT Analogue input 4. Coil pressure circuit 2 (B4) bar INSTANT READ OUT Analogue input 5. Inlet water temperature (B5) °C INSTANT READ OUT Analogue input 6. Outlet water temperature (B6) °C 0 = OPEN C =…

18. Стр. 20 -P- Alarms

    Range Units Value High-pressure alarm set point (transducer B3; B4) Description 0 / 99,9 bar 41 High-pressure alarm differential (transducer B3; B4) 0 / 99,9 bar 10 Summer low-pressure alarm 0 / 99,9 bar 3 Winter low-pressure alarm 0 / 99,9 bar 2 Defrost low-pressure alarm 0 / 99,9 bar 1…

19. Стр. 21 µC3 functions

    F-r. Software version / Language selection • Read out of the µC3 software version and update date. • The Up, Down and Enter keys select the language: English or Italian. Temperature control Two different modes (Control Menu): 1 Adjustment by water temperature at the heat exchanger inlet (sensor B5).…

20. Стр. 22 STP

    M User manual General description of the unit Set point TVD Phase input/output time variation differential RBM Control band HTON Stage activation maxi‐ mum time delay NZ Neutral zone LTON Stage activation mini‐ mum time delay EOW Water temperature at T exchanger outlet HT OFF Stage deactivation max‐…

21. Стр. 23

    • 1 1.1 4-way valves (N13 and N14) Fans (Y3 and Y4) DefrOff Defrost end pressure DefrAct DefrOn Defrost start pressure t t 1...3 Partial times remain‐ ing in defrost start pressure zone Defrost active Time Antifreeze protection If the B6 temperature sensor (water outlet) detects a temperature below…

22. Стр. 24 Second pump

    A 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, and the corresponding protector (contact NC) between ter‐ minals Dl18-G0. This second pump will operate alternately with the first pump, taking into account the…

23. Стр. 25 Alarm table

    Description Serious alarm FC, PG Input ID1 Off circ.1 Off circ.2 Off fan Off pump Off sys X Reset MANUAL Delay Notes - general Phase con‐ trol protection Antifreeze alarm B6 X X X X X MANUAL - The pump can be run‐ ning in OFF mode. See antifreeza menu. Pump 1 heat switch Q5 ID4 X X X X X MANUAL - If…

24. Стр. 26 Description

    Input Off circ.1 Off circ.2 Off fan Off pump Off sys Reset Delay Notes Compressor 3 mainte‐ nance System MANUAL Set period in Compressor menu Compressor 4 mainte‐ nance System MANUAL Set period in Compressor menu 24

25. Стр. 27 Temperature/resistance properties of NTC control sensors (10kOhms)

    Temperature [°C] Resistance [kOhms] Temperature [°C] Resistance [kOhms] Temperature [°C] Resistance [kOhms] Temperature [°C] Resistance [kOhms] Temperature [°C] Resistance [kOhms] -50 329,2 -16 55,95 18 13,08 -49 310,7 -15 53,99 19 12,58 52 3,8 86 1,41 53 3,77 87 -48 293,3 -14 50,9 20 1,37 12,09 54…

26. Стр. 28 Maintenance responsibilities of the user

    Like any other machine, the HVAC unit requires regular maintenance, as the wear to which some of its parts are subjected can effect its mechanical reliability and the safety of those responsible for its main‐ tenance. In compliance with current regulations, the unit must be regularly inspected and…

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