Related Manuals for Johnson Controls YORK YLCA 40
Summary of Contents for Johnson Controls YORK YLCA 40
- Page 1 Air-condensed water chillers and heat pumps YLCA / YLHA 100, 120 and 150 User manual Ref.: N-40291_EN 0112...
-
Page 2: Table Of Contents
Index Index User manual ..........................1 General description of the unit....................2 1.1.1 Models available and capacities....................2 1.1.2 Technical specifications......................4 1.1.3 Operating instructions µC3 (YLCA / YLHA 100, 120 and 150)..........7 1.1.4 Regular maintenance activities for which the user is responsible..........24... -
Page 3: User Manual
User manual... -
Page 4: General Description Of The Unit
User manual General description of the unit 1.1 General description of the unit The YLCA/YLHA units are high-performance air-water chillers and heat pumps using R-410A ecological coolant. 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, that can be installed directly outdoors. - Page 5 User manual General description of the unit...
-
Page 6: Technical Specifications
User manual General description of the unit 1.1.2 Technical specifications These units are supplied completely factory-assembled and with all coolant tubing and wiring ready for installation on site. After mounting, these units must go through an operational test with water. Coolant leaks will also be checked during this process. - Page 7 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.
- Page 8 User manual General description of the unit Antivibration supports Whenever necessary to reduce vibrations and noise YLCA/YLHA 40 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.
-
Page 9: Operating Instructions Μc3 (Ylca / Ylha 100, 120 And 150)
User manual General description of the unit 1.1.3 Operating instructions µC3 (YLCA / YLHA 100, 120 and 150) This is a specially programmed controller for air-water coolers 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. - Page 10 User manual General description of the unit 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 Circuit 1 fan speed control (PWM) Circuit 2 fan speed control (PWM) System components...
- Page 11 User manual General description of the unit 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 pressure.
- Page 12 User manual General description of the unit General diagram, (YLCA / YLHA 100,120 and 150) E1 F1 G1 Keyboard ‑ display terminal Water outlet Programme download key Water inlet D/J/C/I Comp. 1/ Comp. 2 / Comp. 3 / Comp. 4 Fan protection 1–2 Y/A1/G1/ Protection comp.
- Page 13 User manual General description of the unit Start-up About 45 seconds after powering the unit, the start-up display is activated. Default language: English. 1st display. START (information on water temperature/unit status) • Water inlet temperature • Water outlet temperature • Unit status (ON/OFF) Press "down"...
- Page 14 User manual General description of the unit -/- Configuration of probes Description Range Units Value Probe B3 calibration. Coil pressure circuit 1 -9,9/9,9 Probe B4 calibration. Coil pressure circuit 2 -9,9/9,9 Probe B5 calibration. Inlet water temp. to exchanger. -9,9/9,9 °K Probe B6 calibration.
- Page 15 User manual General description of the unit -C- Compressor configuration Description Range Units Value Min. operating time of a compressor 0 / 9999 Seconds Min. stoppage time of a compressor 0 / 9999 Seconds Start-up time between different compressors 0 / 9999 Seconds Start-up time of one compressor 0 / 9999...
- Page 16 User manual General description of the unit -F- Condensation (fans) Description Range Units Value Type of fan control Temp. pressure ON/OFF Pressure No. of condensers Fans Control device Inverter Inverter Power supply frequency 50 / 60 PWM max. triac cut-off 0 / 100 PWM min.
- Page 17 User manual General description of the unit -H- Unit configuration Description Range Units Value 2 (YLCA) Unit type 0 ‑ 7 3 (YLHA) Number of compressors/circuits 4 / 2 LIFO FIFO Compressor rotation FIFO PERSONALISED TIME No. of evaporators 1 ‑ 2 Driver number (EVD400) 0-1-2-4 Cycle inversion valve logic...
- Page 18 User manual General description of the unit -B- Inputs/Outputs Description Range Units Value Analogue input 3. Coil pressure circuit 1 (B3) INSTANT READ OUT Analogue input 4. Coil pressure circuit 2 (B4) INSTANT READ OUT Analogue input 5. Inlet water temperature (B5) °C INSTANT READ OUT 0 = OPEN...
- Page 19 User manual General description of the unit -P- Alarms Description Range Units Value High-pressure alarm set point (transducer B3; B4) 0 / 99,9 High-pressure alarm differential (transducer B3; B4) 0 / 99,9 Summer low-pressure alarm 0 / 99,9 Winter low-pressure alarm 0 / 99,9 Defrost low-pressure alarm 0 / 99,9...
- Page 20 User manual General description of the unit 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.
- Page 21 User manual General description of the unit Phase input/output time Set point variation differential Stage activation maxi‐ RBM Control band HTON mum time delay Stage activation mini‐ Neutral zone LTON mum time delay Water temperature at Stage deactivation max‐ exchanger outlet imum time delay Compressor Stage deactivation mini‐...
- Page 22 User manual General description of the unit • 4-way valves (N13 and N14) • Fans (Y3 and Y4) DefrOff Defrost end pressure DefrAct Defrost active DefrOn Defrost start pressure Time Partial times remain‐ Δt 1...3 ing in defrost start pressure zone Antifreeze protection If the B6 temperature sensor (water outlet) detects a temperature below the antifreeze set temperature, the unit is blocked and in a state of alarm (manual reset).
- Page 23 User manual General description of the unit Second pump A second pump can be enabled by means of the -H-unit config menu. To do this, install the contactor (coil 230-1-50) between terminals N8-N, and the corresponding protector (contact NC) between terminals Dl18-G0.
- Page 24 User manual General description of the unit Alarm table Description Input Off circ.1 Off circ.2 Off fan Off sys Reset Delay Notes pump general Phase Serious alarm FC, PG MANUAL control protec‐ tion The pump can be running in OFF Antifreeze alarm MANUAL mode.
- Page 25 User manual General description of the unit Description Input Off circ.1 Off circ.2 Off fan Off sys Reset Delay Notes pump maintenance Set period in Compressor 4 System MANUAL Compressor maintenance menu CHECK No MCH3 com‐ No link Display CABLE / munication and CONFIGURE display...
-
Page 26: Regular Maintenance Activities For Which The User Is Responsible
Johnson Controls Inc. shall not be considered responsible for any damage caused by improper maintenance of the HVAC unit, which includes anything inconsistent with that described in this document or others specifically provided with the unit. - Page 27 Children must be supervised at all times to ensure that they do not play with the appliance. Only trained Johnson Controls Inc. personnel with the necessary means and tools may carry out maintenance and upkeep work on the unit.
Need help?
Do you have a question about the YORK YLCA 40 and is the answer not in the manual?
Questions and answers