Technical information

ManualsBrandsYork ManualsHeat PumpYLHA 80

       





        



       

Johnson Controls Manufacturing España, S.L. is participating in the EUROVENT Certiﬁcation

Program.

Products are as listed in the EUROVENT Directory of Certiﬁed Products, in the program AC1,

AC2, AC3, LCP and FC.

The LCP program covers air condensed water chillers and heat pumps of up to 600 kW.

Air-condensed water chillers

and heat pumps

YLCA/YLHA 40, 50, 60, 80, 100, 120 and 150 (R-410A)

Technical Information

Ref: N-27703 0409

Summary of content (116 pages)

PAGE 1
Air-condensed water chillers and heat pumps YLCA/YLHA 40, 50, 60, 80, 100, 120 and 150 (R-410A) Ref: N-27703 0409 Technical Information � � � � � � � � �� Johnson Controls Manufacturing España, S.L. is participating in the EUROVENT Certification Program. Products are as listed in the EUROVENT Directory of Certified Products, in the program AC1, AC2, AC3, LCP and FC.
PAGE 2
PAGE 3
Index Page Page General Information 5 Selection Guide (YLCA/YLHA) - 5 5 5 6 - Necessary information - Glycol selection guide (cool only units) Nomenclature General description Models available and capacities Features and advantages Technical Specifications - Accessories and options Physical data, cool only units Physical data, heat pump units Operation, cooling and hydraulic diagram YLHA 40 (cool only) Operation, cooling and hydraulic diagram YLHA 40 (heat pump) Operation, cooling and hydrauli
PAGE 4
Index Page - Alarms table 63 Operating Instructions mC2 YLCA 50, 60 and 80 64 - Description of control unit Standard components General diagram 50, 60 and 80 Symbols on the display Functions of remote control unit buttons Location of controls Parameters tables Alarms table Operating Instructions mC2 + Expansion YLCA 50, 60 and 80 - General diagram Symbols on the display Functions of control unit buttons Location of controls Parameter tables Alarms table 64 64 65 66 66 67 67 - 75 76 77 78 79 79
PAGE 5
General Information Nomenclature Air/water water chiller with axial fans Approximate cooling capacity in kW Voltage (400.3.50) With hydro kit (pack) Edition General description The YLCA/YLHA units are high-performance air-water 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.
PAGE 6
Features and advantages Features Advantages R-410A refrigerant Does not harm the ozone layer. Minimum dimensions Minimum footprint. Low height and weight Space for installing on terraces. Factory tested equipment Operating quality control. Accessibility Easy maintenance. Main switch Operator safety. Microprocessor for control and alarms Easy and safe operation. Manufactured to ISO 9001 High quality level. Variable speed fan Low noise level and condensation control.
PAGE 7
pressure gauge, two air bleed valves, filling valve and drain valve. Also includes a mesh filter for the water circuit. This filter is supplied loose for installation at the most convenient point. Flow switch Assures sufficient water flow when the unit is in operation. Protecting grids To protect the coils from possible impacts. Made of steel rods and painted with oven baked polymerized white enamel (RAL9001).
PAGE 8
Physical data, cool only units Characteristics YLCA 40 T and TP YLCA 50 T and TP 52.1 Cooling capacity kW 39.6 Capacity control % 0 - 100 Power supply Compressor consumption Compressor amperage YLCA 60 T and TP YLCA 80 T and TP YLCA 100 T and TP 60.5 77.6 98 50 - 100 151 kW 12.46 2 x 8.5 2 x 9.20 2 x 12.4 4 x 7.8 4 x 9.4 4 x 12.5 A 23.5 2 x 15.5 2 x 16.7 2 x 24.6 4 x 16 4 x 17.7 4 x 23.5 3.0 2.9 3.1 2.9 2.9 2.9 2.8 1 No.
PAGE 9
Physical data, heat pump units Characteristics YLHA 40 T and TP YLHA 50 T and TP YLHA 60 T and TP YLHA 80 T and TP YLHA 100 T and TP YLHA 120 T and TP YLHA 150 T and TP Cooling capacity kW 37.8 52 60.5 72.2 96 114 145 Heating capacity kW 38.6 52.5 59.6 74.7 104 119.6 150 Capacity control % 100 Power supply 50 - 100 V/ph 25 - 50 - 75 - 100 400.3.50 Compressor consumption in cooling kW 12.4 2x8 2 x 9.2 2 x 12.1 4 x 8.3 4 x 10.2 4 x 11.
PAGE 10
Units with hydro kit (version P) No. of pumps 1 Available static pressure at rated flow (without filter) (2) kPa 147 118 160 137 195 231 205 Available static pressure at rated flow (with filter) (3) kPa 137 117 158 134 192 228 200 Pump consumption W 1 035 990 1 515 1 580 2 380 3 180 3 400 Pump amperage A 1.9 1.80 2.9 3.2 4.4 5.5 6.
PAGE 11
Operation, cooling and hydraulic diagram, YLCA 40 (cool only) � � � � � � � �� SAFETY/CONTROL DEVICES A High pressure switch COMPONENTS 1 Compressor B Low pressure switch 2 Air cooled condenser C Condensing pressure transducer 3 Filter dryer E Water outlet temperature sensor (antifreeze and display) 4 Sight glass 5 Expansion valve 6 Plate heat exchanger 7 Flow switch 8 Globe valve 9 Water pump F Water int
PAGE 12
Operation, cooling and hydraulic diagram, YLHA 40 (heat pump) � � � � � � � � �� SAFETY/CONTROL DEVICES A High pressure switch COMPONENTS 1 Compressor 12 Expansion vessel 13 Relief valve B Low pressure switch 2 Air cooled condenser 14 Water pump E Pressure transducer port.
PAGE 13
Operation, cooling and hydraulic diagram, YLHA 50 - 80 (cool only) � � � � �� SAFETY/CONTROL DEVICES A High pressure switch B Low pressure switch C Condensing pressure transducers E Water outlet temperature sensor (Antifreeze and display) F Water intake temperature sensor (Setting and display) COMPONENTS 1 Tandem compressor 2 Air cooled condenser 3 Filter dryer 4 Sight glass 5 Expansion
PAGE 14
Operation, cooling and hydraulic diagram, YLHA 50 - 80 (heat pump) � � � � � � � � �� SAFETY/CONTROL DEVICES A High pressure switch B Low pressure switch E Pressure transducer port.
PAGE 15
Operation, cooling and hydraulic diagram, YLHA 100, 120 and 150 (cool only) � � � � � � � �� SAFETY/CONTROL DEVICES A High pressure switch COMPONENTS 1 Compressor (tandem) 11 Water tank antifreeze heater Air cooled condenser Expansion vessel B 2 12 3 Filter dryer 13 Water tank 4 Sight glass 14 Charge valve 5 Expansion valve 15 D
PAGE 16
Operation, cooling and hydraulic diagram, YLHA 100, 120 and 150 (heat pump) � � � � � � � � � �� SAFETY/CONTROL DEVICES A High pressure switch B Low pressure switch C Pressure transducer port.
PAGE 17
Table 1. Cooling capacities YLCA 40 ÷ 150 Outdoor ambient temperature °C DB (80% RH) Water YLCA outlet model temp. °C 40 50 60 80 100 120 150 20 Cap. 25 Ab. power Cap. 30 Ab. power Cap. 32 Ab. power Cap. 35 Ab. power Cap. 40 Ab. power Cap. 43 Ab. power Cap. 46 Ab. power Cap. Ab. power kW kW kW kW kW kW kW kW kW kW kW kW kW kW kW kW 5 42.09 10.30 41.00 10.90 39.14 12.04 38.19 12.45 36.79 13.12 32.51 14.61 30.81 15.49 28.90 16.51 6 43.05 10.
PAGE 18
Table 2. Cooling capacities YLCA 40 ÷ 150 (35% ethylene glycol) Outdoor ambient temperature °C DB (80% RH) Water YLCA outlet model temp. °C 40 50 60 80 100 120 150 20 25 Cap. Ab. power kW -5 30 Cap. Ab. power kW kW 27.64 7.38 -4 29.22 -2 32.07 0 2 Cap. kW kW 26.50 8.03 7.60 27.99 8.01 30.85 34.94 8.43 39.00 8.83 4 42.05 -5 -4 35 Cap. Ab. power kW kW 25.35 8.78 8.24 26.57 8.65 29.17 33.84 9.10 37.00 9.57 9.29 40.19 34.91 10.78 36.73 11.05 -2 40.
PAGE 19
Table 3. Cooling capacities YLCA 40 ÷ 150 Outdoor ambient temperature °C DB (80% RH) YLHA Model 40 50 60 80 100 120 150 Water outlet temp. °C 20 Cap. 25 Ab. power Cap. 30 Ab. power Cap. 32 Ab. power Cap. 35 Ab. power Cap. 40 Ab. power Cap. 43 Ab. power Cap. 46 Ab. power Cap. Ab. power kW kW kW kW kW kW kW kW kW kW kW kW kW kW kW kW 5 41.15 10.50 40.30 10.90 38.33 11.80 36.80 12.45 35.08 13.10 31.00 14.50 30.10 14.90 29.10 15.30 6 42.73 10.
PAGE 20
Table 4. Cooling capacities YLCA 40 ÷ 150 (35% ethylene glycol) Outdoor ambient temperature °C DB (80% RH) YLCA Model 40 50 60 80 100 120 150 Water outlet temp. °C 20 25 Cap. Ab. power kW -5 30 Cap. Ab. power kW kW 26.35 7.39 -4 27.86 -2 30.58 0 2 Cap. kW kW 25.27 8.04 7.61 26.69 8.03 29.42 33.32 8.44 37.19 8.85 4 40.10 -5 -4 35 Cap. Ab. power kW kW 24.18 8.80 8.26 25.34 8.67 27.82 32.27 9.11 35.28 9.58 9.30 38.32 34.8 10.4 36.7 10.6 -2 40.
PAGE 21
Table 5. Heating capacities YLCA 40 ÷ 150 Outdoor ambient temperature °C DB (80% RH) Water -15 -10 -5 0 5 7 10 15 20 YLHA outlet Ab. Ab. Ab. Ab. Ab. Ab. Ab. Ab. Ab. Model temp. Cap. Cap. Cap. Cap. Cap. Cap. Cap. Cap. Cap. power power power power power power power power power °C 40 50 60 80 100 120 150 kW kW kW kW kW kW kW kW kW kW kW kW kW kW kW kW kW kW 30 16.6 7.6 21.3 8.2 28.5 8.5 36.7 9.0 37.8 9.1 39.6 9.3 42.5 9.4 46.9 9.4 51.2 9.5 35 16.0 8.6 20.7 8.
PAGE 22
Table 6.
PAGE 23
Table 7.
PAGE 24
Table 8. Pressure drop of filters 1 ½" filter Water flow (l/h) 3 500 kPa Water flow (l/h) 4 000 4 500 5 000 5 500 6 000 6 500 7 000 7 500 1.3 2.6 4 5.4 6.9 8.4 10 11.6 13.3 8 000 8 500 9 000 9 500 10 000 10 500 11 000 11 500 11 800 15 16.8 18.7 20.7 22.8 25 27.3 29.7 32 kPa 2" filter Water flow (l/h) kPa 6 000 7 000 8 000 0.5 0.8 1.1 9 000 10 000 11 000 12 000 13 000 14 000 15 000 16 000 17 000 18 000 19 000 20 000 1.4 1.7 2 2.3 2.6 2.9 3.3 3.7 4.1 4.
PAGE 25
Table 11. Gumming coefficients cable, conditions will be as follows: Cooling capacity: 119 kW Power consumed: 40 kW Water temperature: 13°C to 7°C (Dt = 6) Evaporating unit Gumming coefficient m² °C/kW Capacity factor Comp. ab. power coef. 0.044 1.000 1.000 0.088 0.987 0.995 0.176 0.964 0.985 0.352 0.926 0.962 Table 12. Altitude coefficients Altitude (m.) Capacity factor Comp. ab. power coef. 0 1.000 1.000 600 0.987 1.010 1 200 0.973 1.020 1 800 0.958 1.029 2 400 0.
PAGE 26
Hot water temp. differential Thus, hot water return temperature is 116.3 x 860 = 16 340 = 6.10°C = 38.9°C All values are within operating limits. - Available pressure in hydraulic circuit of a unit with pack. - From Table 6 we infer that the YLHA 120, with a 16 340 l/h flow, has an available pressure of 289 kPa. - Pressure drop in hydraulic circuit of a unit without pack. - From Table 7 we infer that the YLHA 120, with a 16 340 l/h flow, has a pressure drop of 21 kPa.
PAGE 27
-1.5°C, that is to say Fig. 1 - Recommended ethylene glycol concentrations Fig. 4 - Propylene glycol in other concentrations �� 1 + (-4). 2 16 kPa x 1.22 = 19.5 kPa.
PAGE 28
Installation instructions Inspection Upon reception, inspect the goods and notify the carrier and the insurance company, in writing, of any possible damage during transportation. Environmental protection Packing Packing is made of recyclable material. Its elimination should be carried out in accordance with local regulations on selective collection of residual material. Refrigerant Contains greenhouse effect fluorided gas covered by the Kyoto protocol.
PAGE 29
Location Before locating the unit, make sure you have received the appropriate product by checking the specifications described on the outside of same. The unit should be placed on a perfectly horizontal plane, making sure the base can support the weight of the unit. If vibration-free operation is required, the unit can be placed on a cork or similar anti-vibratory base, or fastened to the base with anti-vibratory plates or supports.
PAGE 30
General dimensions and hydraulic connections YLCA/YLHA 40 �� 30
PAGE 31
General dimensions and hydraulic connections �� YLCA/YLHA 50 and 60 �� 31
PAGE 32
General dimensions and hydraulic connections �� 32 �� YLCA/YLHA 80
PAGE 33
General dimensions and hydraulic connections YLCA/YLHA 100, 120 and 150 �� Model �� A B C D E F G H YLCA/YLHA 100 & 120 3 416 183 1 525 1 942 2 190 199 289 380 YLCA/YLHA 150 3 770 255 1 630 1993 2 263 145 211 458 33
PAGE 34
�� Minimum technical clearances YLCA/YLHA 40 ÷ 80 �� 34 ��
PAGE 35
�� Minimum technical clearances YLCA/YLHA 100 ÷ 150 �� 35
PAGE 36
��
PAGE 37
Wiring, YLCA/YLHA 40 ��
PAGE 38
� � ��
PAGE 39
� � � ��
PAGE 40
Wiring, YLCA 50, 60 and 80 ��
PAGE 41
� � ��
PAGE 42
� � � ��
PAGE 43
��
PAGE 44
Wiring, YLCA 50, 60 and 80 ��
PAGE 45
��
PAGE 46
��
PAGE 47
��
PAGE 48
Wiring, YLCA/YLHA 100, 120 and 150 YLCA/YLHA TERMINAL CONNECTING STRIP MAIN SWITCH OUTDOOR TERMINAL CONNECTING STRIP L1 L2 POWER SUPPLY 400V - 3 + N - ph - 50Hz L3 N PE 2 GN N10 C C10 GENERAL ALARM (VOLT-FRE INVERTER NO CONTACT. RESIST. 2A MAX. AT 230Vca) D3 GN D15 1 GN YCSA/LCA, YCSA-H/BRAW CONNECTING STRIP TERMINALS OUTDOOR UNIT TERMINALS 48 POWER SUPPLY REMOTE ON/OFF SWITCH REMOTE COOL/HEAT SWITCH.
PAGE 49
Electrical characteristics Model Compressor Power supply V.ph.Hz. Nominal A Fans Start Cool Heat YLCA 40 21.7 - YLHA 40 25.8 24.5 YLCA 50 2 x 15.5 YLHA 50 Cool Heat 12.46 - 12.49 11.7 - 2 x 8.50 - 2 x 15 2 x 15.3 2x8 2 x 8.3 YLCA 60 2 x 16.7 - 2 x 9.20 - YLHA 60 2 x 16.7 2 x 16.7 2 x 9.20 2 x 9.2 2 x 24.6 - 2 x 12.4 - 2 x 24.9 2 x 24.6 2 x 12.1 2 x 12.2 YLCA 100 4 x 16 - 4 x 7.8 - YLHA 100 4 x 16 4 x 15.5 4 x 8.3 4 x 8.4 YLCA 120 4 x 17.7 - 4 x 9.
PAGE 50
Operating Instructions µC2 YLCA/YLHA 40 Description of control unit This is a multipurpose controller specially programmed for use with air-water chillers and heat pumps equipped with a compressor with one single power stage. Main functions - Water temperature control (at intake or outlet, as per parameter r6). - Defrost cycle management. - System operating and safety management. - Fan speed control. - Alarm management.
PAGE 51
�� General diagram, YLCA/YLHA 40 ��
PAGE 52
Symbols on the display The display has three figures in green, plus a symbol and a Symbol decimal. It also shows the symbols, in amber, of the functions selected (the alarm symbol is red).
PAGE 53
Location of controls �� Parameter tables �� The following tables show the parameters and their values divided into groups.
PAGE 54
Parameters related to the probes Display Description Level VS Unit Max. Min. Value /01 NTC B1 probe (water intake); 0=absent (function not available). 1=present F 1 (R/W) - 1 0 1 /02 NTC B2 probe (water outlet). 0=absent (function not available). 1=present F 2 (R/W) - 1 0 1 /03 NTC B3 probe . 1=condensation probe. 2=outdoor probe. F 14 (R/W) - 1 0 2 /04 Probe type B4, 0=absent, 1=ON/OFF, 2=outdoor NTC probe, 3=ratiometric 5Vdc.
PAGE 55
Minimum operating time of a compressor �� Minimum OFF time of a compressor �� Minimum time between compressor start-ups �� 55
PAGE 56
Compressor/pump OFF delays �� Pump/compressor start-up delays �� 56 � ��
PAGE 57
Parameters related to the fans Display Description Level VS Unit Max. Min. Value F01 Fan outlet. 0=absent (function not available); 1=present F 10 (R/W) 1 0 1 F02 Operating mode: 0= always ON (function not available) 1= Parallel with compressor (function not available) 2= ON/OFF operation (function not available) 3= Parallel with compressor and speed adjustment.
PAGE 58
Parameters related to defrost Display Description Level VS Unit Max. Min. Value d01 Execution of defrost 0= no (function not available) 1= yes. U 7 (R/W) - 1 0 1 d02 Time or temperature defrost. 0= time (function not available). 1= temperature U 8 (R/W) - 1 0 1 d03 Defrost start pressure U 19 (R/W) bar d04 /11 5.8 d04 Defrost end pressure U 21 (R/W) bar /12 d03 18 d05 Minimum time for defrost start U 37 (R/W) Sec.
PAGE 59
Parameters related to defrost control configuration Display Description Level VS Unit Max. Min. Value A01 Antifreeze control set point temperature U 11 (R/W) °C - A07 3 A02 Antifreeze reset differential U 12 (R/W) °K 50 0.3 5 A03 Antifreeze alarm bypass time U 22 (R/W) Sec. 150 0 0 A04 Antifreeze heater activation temperature U 13 (R/W) °C r16 A01 3 A05 Antifreeze heater activation differential U 14 (R/W) °K 50 0.
PAGE 60
Parameters for unit configuration Display 60 Description Level VS Unit Max. Min. Value H01 Unit model. 2= air-water chiller (LCA); 3= air-water heat pump. F 54 (R/W) 2 (YLCA) 3 (YLHA) H02 Number of vent circuits (do not modify this parameter) F 12 (R/W) 0 H03 No. of evaporating units present (do not modify this parameter) F 13 (R/W) 0 H04 No.
PAGE 61
Parameters for alarm configuration Display Description Level VS Unit Max. Min. Value P01 Alarm delay by flow switch at start-up. U 63 (R/W) Sec. 150 0 20 P02 Alarm delay by flow switch with unit in operation. U 64 (R/W) Sec. 120 0 5 P03 Alarm delay by low pressure switch at start-up. U 65 (R/W) Sec. 200 0 60 P05 Alarm reset 6= Low and high pressure switch manual reset at third activation in one hour. Antifreeze control is manual reset.
PAGE 62
Parameters for regulator configuration Display Level VS Unit Max. Min. Value r01 Description Cool cycle set point temperature U 41 (R/W) °C r14 r13 12 r02 Cool set point temperature differential U 42 (R/W) °C 50 0.3 1 r03 Heat cycle set point temperature U 43 (R/W) °C r16 r15 40 r04 Heat cycle set point temperature differential U 44 (R/W) °C 50 0.3 2 r06 Type of adjustment 0= Proportional. Intake temperature. 1= Proportional + neutral zone. Intake temp.
PAGE 63
Table of alarms Display Alarm type Reset A1 Antifreeze alarm Manual AHt High temp. at start-up (if activated, P20=1) Automatic ALt Low temp. at start-up (if activated, P20=1) Automatic d1-2 Defrost in operation dF1-2 - Problem in defrost Automatic E1 Probe B1 Automatic E2 Probe B2 Automatic E3 Probe B3 Automatic E4 Probe B4 Automatic ELS Low supply voltage Automatic EHS High supply voltage Automatic EPr Eprom error. Unit in operation. Automatic EPb Eprom error.
PAGE 64
Operating Instructions µC2 YLCA 50, 60 and 80 Description of 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 one single cooling circuit. Main functions - Water temperature control (at intake or outlet, as per parameter r6). - Defrost cycle management. - System operating and safety management. - Fan speed control. - Alarm management.
PAGE 65
�� General diagram, YLCA 50, 60 and 80 ��
PAGE 66
Symbols on the display decimal. It also shows the symbols, in amber, of the functions selected (the alarm symbol is red).
PAGE 67
Location of controls �� Parameter tables The following tables show the parameters and their values divided into groups.
PAGE 68
Parameters related to the probes Display Description Level VS Unit Max. Min. Value /01 NTC B1 probe (water intake); 0=absent (function not available). 1=present F 1 (R/W) - 1 0 1 /02 NTC B2 probe (water outlet). 0=absent (function not available). 1=present F 2 (R/W) - 1 0 1 /03 NTC B3 probe . 1=condensation probe. 2=outdoor probe. F 14 (R/W) - 1 0 2 /04 Probe type B4, 0=absent, 1=ON/OFF, 2=outdoor NTC probe, 3=ratiometric 5Vdc.
PAGE 69
Minimum operating time of a compressor �� Minimum OFF time of a compressor �� Minimum time between compressor start-ups �� Time between start-ups of two compressors �� 69
PAGE 70
Time between OFF of two compressors �� Compressor/pump OFF delays �� Pump/compressor start-up delays �� 70 � ��
PAGE 71
Parameters related to the fans Display Description Level VS Unit Max. Min. Value F01 Fan outlet. 0=absent (function not available); 1=present F 10 (R/W) 1 0 1 F02 Operating mode: 0= always ON (function not available) 1= Parallel with compressor (function not available) 2= ON/OFF operation (function not available) 3= Parallel with compressor and speed adjustment.
PAGE 72
Parameters related to defrost control configuration Display Description Level VS Unit Max. Min. Value A01 Antifreeze control set point temperature U 11 (R/W) °C - A07 3 A02 Antifreeze reset differential U 12 (R/W) °K 50 0.3 5 A03 Antifreeze alarm bypass time U 22 (R/W) Sec. 150 0 0 A04 Antifreeze heater activation temperature U 13 (R/W) °C r16 A01 3 A05 Antifreeze heater activation differential U 14 (R/W) °K 50 0.
PAGE 73
Parameters for unit configuration Display Description Level VS Unit Max. Min. Value H01 Unit model. 2= air-water chiller (LCA); 3= air-water heat pump. F 54 (R/W) 2 H02 Number of vent circuits (do not modify this parameter) F 12 (R/W) 0 H03 No. of evaporating units present (do not modify this parameter) F 13 (R/W) 0 H04 No.
PAGE 74
Parameters for alarm configuration Display 74 Description Level VS Unit Max. Min. Value P01 Alarm delay by flow switch at start-up. U 63 (R/W) Sec. 150 0 20 P02 Alarm delay by flow switch with unit in operation. U 64 (R/W) Sec. 120 0 5 P03 Alarm delay by low pressure switch at start-up. U 65 (R/W) Sec. 200 0 60 P04 Partialization in HP Prevent high pressure 0= Inactive. 1= Active.
PAGE 75
Parameters for controller configuration Display Description Level VS Unit Max. Min. Value r01 Cool cycle set point temperature U 41 (R/W) °C r14 r13 12 r02 Cool set point temperature differential U 42 (R/W) °C 50 0.3 2 r05 Compressor rotation 0 = Disabled 1 = FIFO type 2 = By operating hours F 78 (R/W) 2 0 2 r06 Type of adjustment 0= Proportional. Intake temperature. 1= Proportional + neutral zone. Intake temp. 2= Proportional. Output temperature.
PAGE 76
Table of alarms Display Alarm type Reset A1 Antifreeze alarm Manual AHt High temp. at start-up (if activated, P20=1) Automatic ALt Low temp. at start-up (if activated, P20=1) Automatic E1 Probe B1 Automatic E2 Probe B2 Automatic E3 Probe B3 Automatic E4 Probe B4 Automatic ELS Low supply voltage Automatic EHS High supply voltage Automatic EPr Eprom error. Unit in operation. Automatic EPb Eprom error.
PAGE 77
Operating Instructions µC2 + Expansion YLHA 50, 60 and 80 Description of 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 one single cooling circuit. Main functions - Water temperature control (at intake or outlet, as per parameter r6). - Defrost cycle management. - System operating and safety management. - Fan speed control. - Alarm management.
PAGE 78
��
PAGE 79
Symbols on the display decimal. It also shows the symbols, in amber, of the functions selected (the alarm symbol is red).
PAGE 80
Location of controls �� Parameter tables The following tables show the parameters and their values divided into groups.
PAGE 81
Parameters related to the probes Display Description Level VS Unit Max. Min. Value /01 NTC B1 probe (water intake); 0=absent (function not available). 1=present F 1 (R/W) - 1 0 1 /02 NTC B2 probe (water outlet). 0=absent (function not available). 1=present F 2 (R/W) - 1 0 1 /03 NTC B3 probe . 1=condensation probe. 2=outdoor probe. F 14 (R/W) - 1 0 2 /04 Probe type B4, 0=absent, 1=ON/OFF, 2= NTC probe, 3=ratiometric 5Vdc. F 15 (R/W) - 3 0 3 /08 Probe type B8.
PAGE 82
Minimum operating time of a compressor �� Minimum OFF time of a compressor �� Minimum time between compressor start-ups �� Time between start-ups of two compressors �� 82 � ��
PAGE 83
Time between OFF of two compressors �� Compressor/pump OFF delays �� Pump/compressor start-up delays �� 83
PAGE 84
Parameters related to the fans Display Description Level VS Unit Min. Value F01 Fan outlet. 0=absent (function not available); 1=present F 10 (R/W) 1 0 1 F02 Operating mode: 0= always ON (function not available) 1= Parallel with compressor (function not available) 2= ON/OFF operation (function not available) 3= Parallel with compressor and speed adjustment.
PAGE 85
Parameters related to defrost Display Description Level VS Unit Max. Min. Value d01 Execution of defrost 0= no (function not available) 1= yes. U 7 (R/W) - 1 0 1 d02 Time or temperature defrost. 0= time (function not available). 1= temperature U 8 (R/W) - 1 0 1 d03 Defrost start pressure U 19 (R/W) bar d04 /11 5.8 d04 Defrost end pressure U 21 (R/W) bar /12 d03 18 d05 Minimum time for defrost start U 37 (R/W) Sec.
PAGE 86
Parameters related to defrost control configuration Display Description Level VS Unit Max. Min. Value A01 Antifreeze control set point temperature U 11 (R/W) °C - A07 3 A02 Antifreeze reset differential U 12 (R/W) °K 50 0.3 5 A03 Antifreeze alarm bypass time U 22 (R/W) Sec. 150 0 0 A04 Antifreeze heater activation temperature U 13 (R/W) °C r16 A01 3 A05 Antifreeze heater activation differential U 14 (R/W) °K 50 0.
PAGE 87
Parameters for unit configuration Display Description Level VS Unit Max. Min. Value H01 Unit model. 2= air-water chiller; 3= air-water heat pump. F 54 (R/W) 3 H02 Number of vent circuits (do not modify this parameter) F 12 (R/W) 0 H03 No. of evaporating units present (do not modify this parameter) F 13 (R/W) 0 H04 No.
PAGE 88
Parameters for alarm configuration Display 88 Description Level VS Unit Max. Min. Value P01 Alarm delay by flow switch at start-up. U 63 (R/W) Sec. 150 0 20 P02 Alarm delay by flow switch with unit in operation. U 64 (R/W) Sec. 120 0 5 P03 Alarm delay by low pressure switch at start-up. U 65 (R/W) Sec. 200 0 60 P04 Partialization in HP Prevent high pressure 0= Inactive. 1= Active.
PAGE 89
Parameters for controller configuration Display Description Level VS Unit Max. Min. Value r01 Cool cycle set point temperature U 41 (R/W) °C r14 r13 12 r02 Cool set point temperature differential U 42 (R/W) °C 50 0.3 2 r03 Heat cycle temperature set point U 43 (R/W) °C r16 r15 40 r04 Heat cycle temperature set point differential U 44 (R/W) °C 50 0.
PAGE 90
Table of alarms Display Alarm type Reset A1 Antifreeze alarm Manual AHt High temp. at start-up (if activated, P20=1) Automatic ALt Low temp. at start-up (if activated, P20=1) Automatic d1-2 Defrost in operation dF1-2 - Problem in defrost Automatic E1 Probe B1 Automatic E2 Probe B2 Automatic E3 Probe B3 Automatic E4 Probe B4 Automatic E8 Probe B8 Automatic ELS Low supply voltage Automatic EHS High supply voltage Automatic EPr Eprom error. Unit in operation.
PAGE 91
Operating Instructions µC3 Control, 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 controlled by pressure sensors. This control operates through the following intakes and outlets.
PAGE 92
The system is made up of the following basic components: - Keyboard-display - µC3 controller - Fan speed controllers (FSC1 and FSC2) - Pressure sensors (B3 and B4) - NTC probes (B5 and B6) tions: Alarm, Prg (Programming, Esc (Escape), Up, Enter and Down. On this screen we can select the ON/OFF and COOL/HEAT functions, read out the unit status, access the configuration menus (by means of a password), read out the alarm messages, reset said alarms, read out operating pressures and temperatures, etc.
PAGE 93
��
PAGE 94
Pressure sensors (B3 and B4) One for each cooling circuit and connected to the coil collectors. 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. NTC probes (B5 and B6) B5- For the detection and control of water intake temperature (cool only and heat pump units). B6- For the detection of water outlet temperature.
PAGE 95
-A- Antifreeze DESCRIPTION RANGE UNIT VALUE Min. operating time of a compressor -99.9/99.9 °C 3 Antifreeze alarm set point differential 99.9 °K 5 Antifreeze alarm set point lower limit -99.9/99.9 °C 3 Antifreeze alarm set point upper limit -99.9/99.9 °C 5 Antifreeze alarm reset MANUAL AUTOMATIC - MANUAL 0/540 min. 0 Antifreeze heater activation set point -99.9/99.9 °C 3 Antifreeze heater activation set point differential -99.9/99.
PAGE 96
-d- Defrost When a defrost cycle is being carried out, the message DEFROST REQ appears on the start-up display. DESCRIPTION RANGE UNIT VALUE PRESSURE TEMP. PRESSURE SWITCH - PRESSURE SEPARATE SIMULTANEOUS - SIMULTANEOUS TIME TEMP./PRESSURE - TEMP./PRESSURE Defrost start pressure -99.8/99.9 bar 5.8 Defrost end pressure -99.8/99.9 bar 26 Defrost call delay 1/32000 Sec. 1800 Max. defrost time 1/32000 Sec. 420 Min. defrost time 1/32000 Sec.
PAGE 97
-H- Unit configuration DESCRIPTION RANGE UNIT VALUE 0-7 - 2 (COOLER) 3 (HEAT PUMP) - 4/2 LIFO FIFO PERSONALIZED TIME - FIFO 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 ACCESSORY) Pump rotation START-UP TIME - TIME Unit type No. of compressors/circuits Compressor rotation No. of evaporators Pump operation ON WITH COMP. ON ALWAYS OFF ALWAYS ON SAFETY ON/OFF ALWAYS ON No.
PAGE 98
-B- Inputs/Outputs DESCRIPTION RANGE UNIT VALUE Analogue input 3. Coil pressure circuit 1 (B3) bar INSTANT READ OUT Analogue input 4. Coil pressure circuit 2 (B4) bar INSTANT READ OUT Analogue input 5. Intake water temperature (B5) °C INSTANT READ OUT Analogue input 6. Outlet water temperature (B6) °C 0 = OPEN C = CLOSED Digital input 1. External alarm O/C 0 = OPEN C = CLOSED Digital input 2. Flow switch O/C 0 = OPEN C = CLOSED Digital input 3.
PAGE 99
-P- Alarms DESCRIPTION RANGE UNIT VALUE High pressure alarm set point (B3; B4 transducer) 0/99.9 bar 41 High pressure alarm differential (B3; B4 transducer) 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 Low pressure differential 0/99.
PAGE 100
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 ("Menu Control"): 1. Adjustment by water temperature at the heat exchanger intake (probe B5). This control carries out a proportional type adjustment based on a set point and a proportional band distributed over 4 stages. This is the controller default type.
PAGE 101
2. Adjustment by water temperature at the outlet of the heat exchanger. Thermostatic control is based on the temperature value detected by probe B6. Based on the set point value (STPM) and the control base (RBM), it defines a neutral temperature zone (NZ). - The temperature values comprised between the set point and the set point plus the band (STPM ≤ Temperature ≤ STPM + RBM) do not cause the on/off function of the compressors.
PAGE 102
Rotation of compressors The controller provides a FIFO type rotation in which the first compressor to go on will be the first to go off as well. Start-up sequence: C1, C2, C3, C4. Off sequence: C1, C2, C3, C4. HP prevent When this function is enabled, the controller attempts to avoid the blockage of the unit due to excessively high pressure.
PAGE 103
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). Simultaneously, the protecting heaters of the plate heat exchanger (output N11) are connected. If the unit includes a hydro kit, the accumulator tank protection heaters will also be activated.
PAGE 104
Table of alarms INPUT OFF CIRC.1 OFF CIRC.2 OFF FAN OFF PUMP OFF SYS. RESET DELAY Serious alarm FC, PG ID1 X X X X X MANUAL - General protection phase control Antifreeze alarm B6 X X X - X MANUAL - In OFF mode, possibility of having pump on. See "Antifreeze" menu. Thermal protector pump 1 Q5 ID4 X X X X X MANUAL - If available, pump 1 starts. If not, the system turns off. Thermal protector pump 2 Q6 ID18 X X X X X MANUAL - If available, pump 1 starts.
PAGE 105
Temperature/heater characteristics of NTC control probes (10 kOhms) Temperature (°C) Heater (kOhms) Temperature (°C) Heater (kOhms) Temperature (°C) Heater (kOhms) Temperature (°C) Heater (kOhms) -50 329.20 -16 55.95 26 9.63 68 2.36 -49 310.70 -15 53.99 27 9.28 69 2.29 -14 50.90 28 8.94 70 2.22 -48 293.30 -13 48.66 29 8.82 71 2.16 -47 277.00 -12 46.48 30 8.31 72 2.10 -46 261.80 -11 44.41 31 6.01 73 2.04 -45 247.50 -10 42.45 32 7.72 74 1.
PAGE 106
Accessories Remote terminal YLCA/YLHA 40, 50, 60 and 80 This accessory allows remote control and supervision of the air conditioning unit (up to 1040 m.). Functions are the same as the standard control panel keyboard. This remote terminal is compatible with said electric panel keyboard, and the air conditioning unit can be accessed from both devices. For this application, it must be connected to the system by means of the RS485 serial line connection accessory.
PAGE 107
�� Installation No configuration is necessary for the remote terminal to be operative because the term
PAGE 108
Connecting serial line RS485 This accessory allows connecting the air conditioning unit to a serial line RS485 supervision network. It must also be used to install the remote terminal accessory. Mounting Connect the accessory to the four-pole socket base at the lower right angle of the module with display and keyboard. Use the 4-cable connector supplied. Connect to the supervising system as indicated in the diagram below.
PAGE 109
Remote control unit YLCA/YLHA 100, 120 and 150 braided and shielded AWG24 cable. This cable should be The display can be located at a distance of 50 m. from the µC3 controller by using telephone cable. This distance can be increased to 500 m. by using two pair inserted between two TCONN6J000 connectors (accessory) which, at the same time, are connected to two S90CONN0 telephone cables (accessory). See diagram below.
PAGE 110
Remote control unit Wall-mounted, with keys for COOL/HEAT and ON/OFF functions. Includes power supply, alarm and COOL/HEAT LEDs. � 123456- Power supply LED Alarm LED ON/OFF selection key Unit ON LED COOL/HEAT selection key LED ON in heat function / LED OFF in cool function � � � � � �� - The remote control unit can be located at a maximum distance of 50 m. - Minimum cable section should be 0.35 mm². - Avoid extending control cables near power cables.
PAGE 111
Connection with control panel YLCA/YLHA 50, 60 and 80 Prior to installation, give value 1 to parameters H6 and H7. �� Connection with control panel YLCA/YLHA 100, 120 and 150 Prior to installation, validate cool/heat and ON/OFF inputs in menu "H", unit configuration, giving them a value of "Y".
PAGE 112
Soft Start of F1, F2 and F3) in the unit control system by means of a control relay of specific phases. Starter adjustment must be made by means of the front pressure meters, and in accordance with the values indicated below: The RSHR4032CV38, which is specific for Scroll compressors, is equipped with CA semiconductors for soft starts of the motor.
PAGE 113
Electrical interconnection Operating diagram Diagram 1a: Normal operation Network L1, L2, L3 �� Input of control Uc �� Motor power supply T1, T2, T3 Power supply ON LED Ramp end aux. relay End ramp LED Ramp LED Diagram 2a: Unit overheat alarm �� Network L1, L2, L3 Imput of control Us* Unit overheat Input of control Uc Motor power supply T1, T2, T3 Alarm aux.
PAGE 114
PAGE 115
PAGE 116
www.johnsoncontrols.