York 122, 152, YLCC-h, YLCC 42, YLCC 62 User Manual

Heat pumps and water chillers,
YLCC-H and YLCC-42, 62, 82, 102, 122
and 152 (R-407C) with centrifugal fans
For indoor installation

Technical information

Ref.: TYLC-CE2

ER-0028/1991

ACCORDING TO ISO 9001 STANDARDS

CGM-97/013

ACCORDING TO ISO 14001 STANDARDS

Index

Page Page

General description 5

- Nomenclature 5

- General characteristics 5

Technical specifications 5

- Mechanical specifications 5 - 6

- Controls 6

- Accessories 6 - 7

- Physical data and electrical characteristics 8 - 9

- Limits of use 10

- Limits of use, YLCC 10

- Limits of use, YLCC-H 10

- Test conditions 10

- Nominal flows, cooling only 10

- Nominal flows, heat pump 10

- Cooling capacities 11 - 14

- Heating capacities 15 - 16

- Hydraulic circuit flow/pressure
characteristics of YLCC and YLCC-H units 17 - 18

- Fan performances 19

- Correcting factors 20

- Factors with water and glycol 20

Installation instructions 21

- General information 21

- Inspection 21

- Environmental protection 21

- Warning signs 21

- Transportation 21

- Clearances 22

- Drainage 22

- Locating and securing the unit 22

- Hydraulic connections 23

- Hydro kits GH 24

- Circulating pump 24

- Flow switch 24

- Application on YLCC/YLCC-H units 24

- Wiring 25

- Identification of system intakes and outlets 28

Accessories 28

- Remote terminal 28

- Programmable key 29

- Unit addressing 30

- Unit control 30

- Display 30

- Unit status 30

- Keyboard 30

- Activation/deactivation of "COOL" function 30

- Activation/deactivation of "HEAT" function 30

- Access to "DIRECT" parameters 30

- Access to "USER" parameters 30

- Access to "FACTORY" parameters 31

- Deactivation of buzzer 31

- Alarm reset 31

- Forced defrost 31

- Clearing hour counters 31

- Installation of default parameters 31

- Adjusting display contrast 31

- Summary of keyboard functions 31

- Operation of ser point 32

- Compressors 32

- Defrost cycle 33

- Pump operation 33

- Single-phase axial or centrifugal fans operation with
speed control 34

- Alarms and messages 35

- Yellow and green LEDs on base plate 36

- Probe calibration 36

- Remote ON/OFF 36

- Remote COOL/HEAT 36

- Protection of "DIRECT" parameters 36

- Buzzer configuration 36

Operation 36

- Cooling cycle YLCC 36

- Cooling cycle YLCC-H 37

- Heating cycle YLCC-H 37

Operating and start-up instructions 26

- YLCC/YLCC-H control system 26

- Standard components 26

- Interconnecting diagram 27

General dimensions 38 - 42

Wiring diagrams 43 - 62

3

General description

The YLCC water chillers and YLCC-H heat pumps are sup­plied factory-assembled and with all refrigerant piping and
interconnecting wiring ready for installation at the job site.
After assembly, the water chillers go through a water test.
Possible leaks are also checked once the refrigerant is
charged.
The units are made of galvanized steel with anticorrosive nuts
and bolts. The panels can be removed for access to internal
components. The outer galvanized steel parts are painted
with oven-dried enamel (RAL 9002).
Throughout the manufacturing process, all our products fol­low a quality control process in accordance with the ISO 9001
standard, which is also demanded from the acquired compo­nents. The PED pressure equipment directive is also applied.
The water chillers or air-water type heat pumps are designed
to be installed in air conditioning systems or industrial proc­esses that require cold (or hot) water or water with glycol.
Designed for indoor installation.

Nomenclature

YORK unit

- Scroll compressors.

- Centrifugal fan (horizontal or vertical air discharge).

- Coaxial exchanger.

- R-407C refrigerant.

- Hydro kit (option).

The accessibility of all components and control system al­lows quick installation and start-up, as well as trouble-free
maintenance.

Technical specifications

Mechanical specifications

Casing

Made of zinc-coated aluminium steel sheeting, finished with
oven-polymerised powdered paint, colour RAL 9002. it may
be installed directly outdoors.
Their extraordinary protection against corrosion, along with
their heavy duty internal structure, make up an extremely
robust and resistant unit.

Compressor

The hermetic Scroll compressor is protected internally. Start­ing will be direct on line. With electronic control. The crank­case heater is activated when the compressor is inoperative.
Mounted on anti-vibratory supports.

Liquid chiller

Centrifugal fan

Heat pump

Model

Vertical air discharge

Y LC C H 42 V

General characteristics

The main characteristics of these units are:

- Operating test at factory.

- Ready for job site installation.

- Electronic control of water temperature.

- Two independent circuits (2 stages up to 102) (4 stages 122
and 152).

Evaporator (water)

Coaxial type exchanger, of a large transmission surface, made
of finned tubing. Insulated externally.
Maximum operating pressure is 25 bar on the refrigerant side,
and 10 bar on the water side.

Condenser (air)

Of a large surface. Made of copper tubing in staggered rows,
mechanically expanded within high performance aluminium
fins. Maximum operating pressure of the coil is 28 bar (stand­ard unit).

Control of refrigerant to the exchangers

Refrigerant feed is carried out by means of an expansion
valve with external pressure equalizer (reversible on heat
pump models).

Refrigerant

The units are supplied with an optimum R-407C refrigerant
charge for correct operation and maximum output under dif­ferent working conditions.

Cooling circuit

Made of welded copper tubing and equipped with 1/4" SAE
connections on the high and low pressure sides.
This product has been designed, manufactured and tested
in accordance with the strictest European safety regulations.
Includes the following components:

- Suction accumulator (heat pump only).

- Filter-dryer.

- Expansion valve.

- 4-way valve (heat pump only).

- Liquid sight glass.

- Liquid accumulator (heat pump only).

- Automatic high and low pressure switches.

Electric and control panel

The electric and control components are factory-controlled,

5

connected and tested. The electric box has a door with a block­ing mechanism and contains the compressor and fan contac­tors, fuses and electrical protection. Also has IP44 protec­tion.

Centrifugal fans

Transmission is by belts and removable core pulleys. The
motors are mounted on tensing bases fastened directly to the
fan casing.
Two versions are available: with horizontal or vertical air dis­charge

Controls

So as to achieve maximum energy savings, perfect opera­tion of the equipment and prolong the useful life of same, the
YLCC water chillers or heat pump units are equipped with
the following controls:

- Electronic thermostat that controls cold water return tem­perature.

- Electronic antifreeze thermostat.

- High pressure switch, 31 bar.

- Low pressure switch, 2 bar.

- Stage rotation (included in the thermostat).

- Remote terminal unit (optional).

- Timed start.

- Remote control.

Compatible with the following units:
GH200 for size 42
GH260 for sizes 62 and 82
GH600S for sizes 102 and 122
GH600P for size 152

comp

x 100

PRG

mute

SEL

clear

chiller

µ

DI buffer tanks

Cylindrical shape and in vertical position. Available in 200,
260 and 600 litre capacities.

Low ambient kit (factory-mounted, optional)

This accessory allows operation of the unit when the con­densing outdoor air temperature is below 10° C.

General information

This accessory controls condensing pressure in the winter
cycle by varying air flow through the outdoor coils. This flow
variation keeps condensing pressure constant when outdoor
temperatures are low.

Operation

By means of the pressure detected through the analogical
pressure switches installed in the cooling circuit, and carry­ing out the appropriate calculations as programmed, this con­trol generates an analogical signal that opens the dampers
to maintain the condensing pressure previously programmed
as the set point.

Accessories

Hydro kit GH

Includes: Buffer tank, automatic air purger, pressure gauge,
automatic 1.5 bar filling valve, expansion vessel, pump, flow
switch, drain valve, safety valve and electronic board for in­terconnection. Available in 200, 260 and 600 litre capacities.
There are two versions of GH600: GH600S and GH600P.

6

Anti-vibratory supports

Whenever a maximum reduction of vibration and noise gener­ated by the unit is required, a set of steel spring anti-vibratory
supports can be used. These should be installed between the
supporting frame of the unit and the base or floor where same
is to be located. This base should be solid and sized in ac­cordance with the weight to be supported. 12MA bolts are
use to secure the supports to the base of the frame. This anti­vibratory support accessory for YLCC-42/62 includes 4
springs, whereas for YLCC-82/102/122/152 it includes 6. These
spring supports should be distributed and secured by means
of the corresponding holes drilled in the chiller base, the loca­tion of which is detailed in General Dimensions.

12 MA

Remote control (accessory)

For access and control by means of the buttons and LEDs
available. Allows selecting the cool, heat and OFF functions,
and the red LED indicates any failure.
Can be installed at a maximum distance of 50 m. The remote
terminal should be connected to the unit with a 7 x 0,35 mm
cable.

2

94 (MAX)

82+3 (MIN)

Flow switch (optional accessory)

Flow switch

Switch with a 1" MPT thread, adequate for a Design Operat­ing Pressure of 10 bar hand so as to protect the equipment
against water flow drops. This switch, or an equivalent, is
required for the site installation of each unit (obligatory).

Remote terminal

For total access and control of the system by means of the
display, buttons and LEDs. Allows selecting cool, heat and
off functions. Can also modify operating parameters and moni­tor the system. Can be installed at a distance of 150 m.

7

Physical data and electrical characteristics

Cooling only

Model

Cooling capacity kW 40.2 64 72.5 96.1 116 145

Amount 2 2 2 2 2 2

Type Scroll Scroll Scroll Scroll Tandem-Scroll Tandem-Scroll

Nominal power (a) kW 8.3 (x2) 11.7 (x2) 13.7 (x2) 19.1 (x2) 27.6 (x2) 27,9 (x2)

Compressor

Power supply V.ph.Hz 400.3.50

Compres. consump. in cool A 16.2 (x2) 21.3 (x2) 26.3 (x2) 34 (x2) 47.6 (x2) 50,9

Starting current A 130 135 175 215 135 175

Oil charge l 3.25 3.3 6.6 8 6.6 6.6

Oil type Polyolester ISO 32

Amount 2 2 2 2 2 2

Total nom. air flow m3/h 13 268 20 122 23 304 28 834 33 247 38 312

Fan size mm 12-12 15-15 15-15 18-18 18-18 18-18

Power (a) W 1 280 (x2) 2 407 (x2) 2 648 (x2) 3 549 (x2) 5 520 (x2) 6 360 (x2)

Centrifugal
fan

Fan consumption A 2.9 (x2) 5 (x2) 6.4 (x2) 6.9 (x2) 10.31 (x2) 11,5 (x2)

Starting current A 17 35 60 60 75 75

Power supply V.ph.Hz 400.3.50

Motor r.p.m. 1 420 1 430 1 420 1 420 1 425 1 425

Available pressure (b) Pa 50 50 50 50 50 50

Amount 2 2 2 2 2 2

Pipes depth x height 4 x 42 5 x 42 4 x 48 4 x 48 4 x 48 5 x 48

Outdoor
coil

Fins per inch 14 14 16 16 16 16

Front surface m21.02 (x2) 1.02 (x2) 1.56 (x2) 1.56 (x2) 1.77 (x2) 1.77 (x2)

YLCC YLCC YLCC YLCC YLCC YLCC

42/42V 62/62V 82/82V 102/102V 122/122V 152/152V

Piping diameter 3/8"

Indoor
exchanger

Type Coaxial
Max. operating pressure

on water side

bar 10 10 10 10 10 10

Nominal water flow l/h 6 760 11 020 12 285 16 424 19 404 22 948

Water connections female G. 2" 2" 21/2"2

Water filter 2" 2" 21/2"2

1

/2"3" 3"

1

/2"3" 3"

Refrigerant charge R-407C kg 7.3 (x2) 7.8 (x2) 11.2 (x2) 11.4 (x2) 12 (x2) 16 (x2)

Sound power level dB(A) 79 81 82 84 86 90

Sound power level at 5 m dB(A) 57 59 60 62 64 70

Sound power level at 10 m dB(A) 51 53 54 56 58 62

Height mm 1 770 1 770 1 994 1 994 1 994 1 994

Dimensions
with packing

Width mm 2 340 2 340 2 991 2 991 3 300 3 300

Depth mm 883 1 029 1 150 1 150 1 400 1 400

IP 44 44 44 44 44 44

Approximate
weight

Nett kg 695 816 962 1 133 1 389 1 522

Gross kg 712 834 981 1 153 1 411 1 544

a) Consumption under nominal conditions.
b) Pressure under nominal conditions. See page 10 for other air flows.

8

Physical data and electrical characteristics

Heat pump units

Model

Cooling capacity kW 42.2 59.5 72.5 94.9 116 145

Heating capacity kW 45.2 64.2 82.7 95.4 120 145

Amount 2 2 2 2 2 2

Type Scroll Scroll Scroll Scroll Tandem scroll Tandem scroll

Nominal power (cooling) (a) kW 8.2 (x2) 12.3 (x2) 13.9 (x2) 19.5 (x2) 24 (x2) 29,7 (x2)

Nominal power (heating) (a) kW 8.7 (x2) 12.6 (x2) 14.3 (x2) 19.9 (x2) 25,3 (x2) 28,4 (x2)

Compressor

Power supply V.ph.Hz 400.3.50

Comp. consump. in cooling A 15.9 (x2) 22 (x2) 26.5 (x2) 34.4 (x2) 41,5 (x2) 54 (x2)

Comp. consump. in heating A 16.7 (x2) 22.8 (x2) 27.1 (x2) 35 (x2) 43,5 (x2) 52,2 (x2)

Starting current A 130 135 175 215 135 175

Oil charge l 3.25 3.3 6.6 8 6.6 6.6

Oil type Polyolester ISO32

Amount 2 2 2 2 2 2

Total nom. air flow m3/h 13 268 20 122 23 304 28 834 37 403 37 403

Fan size mm 12-12 15-15 15-15 18-18 18-18 18-18

Power (a) W 1 420 (x2) 2 507 (x2) 2 824 (x2) 3 988 (x2) 5 505 (x2) 5 856 (x2)

Centrifugal
fan

Fan consumption A 3.1 (x2) 4.9 (x2) 6.6 (x2) 7.4 (x2) 10,4 (x2) 10,8 (x2)

Starting current A 17 35 60 60 75 75

Power supply V.ph.Hz 400.3.50

Motor r.p.m. 1 420 1 430 1 420 1 420 1 425 1 425

Available pressure (b) Pa 50 50 50 50 50 50

Amount 2 2 2 2 2 2

Pipes depth x height 4 x 42 5 x 42 4 x 48 4 x 48 5 x 48 5 x 48

Outdoor
coil

Fins per inch 14 14 16 16 16 16

Front surface m21.02 (x2) 1.02 (x2) 1.56 (x2) 1.56 (x2) 1.77 (x2) 1.77 (x2)

Piper diameter 3/8"

Indoor
exchanger

Type Coaxial
Max. operating pressure

on water side

Nominal cold/hot water flow l/h 7107 / 6829 10041 / 10045 12211 / 13629 16165 / 16103 17 977/18 889 22 085/20 801

Water connections female G. 2" 2" 21/2"2

Water filter 2" 2" 21/2"2

Refrigerant charge R-407C kg 7.5 (x2) 8.6 (x2) 12.1 (x2) 12.1 (x2) 14,5 (x2) 20 (x2)

Sound power level dB(A) 79 81 82 84 86 90

Sound power level at 5 m dB(A) 57 59 60 62 64 70

Sound power level at 10 m dB(A) 51 53 54 56 58 62

Height mm 1 770 1 770 1 994 1 994 1 994 1 994

Dimensions
with packing

Width mm 2 340 2 340 2 991 2 991 3 300 3 300

Depth mm 883 1 029 1 150 1 150 1 400 1 400

IP 44 44 44 44 44 44

Approximate
weight

Nett kg 715 857 987 1 146 1 514 1 568

Gross kg 732 875 1 006 1 166 1 536 1 590

a) Consumption under nominal conditions.
b) Pressure under nominal conditions. See page 10 for other air flows.

YLCC-H YLCC-H YLCC-H YLCC-H YLCC-H YLCC-H

42/42V 62/62V 82/82V 102/102V 122/122V 152/152V

bar 10 10 10 10 10 10

1

/2"3" 3"

1

/2"3" 3"

9

Limits of use

Voltage limits

Model

YLCC 342 436 10 - 46 - 5* - 15 - 3 7

YLCC-H 342 436 10 -10 46 20 5* 30 15 50 3 7

* At water temperatures below the nominal limits, it is always necessary to use glycol-type antifreeze mixtures.

Nominal at 400 V

Minimum Maximum Cool Heat Cool Heat Cool Heat Cool Heat

DB air intake temperature to coil

Operating cycle

Minimum °C

Water outlet temperature

Operating cycle

Maximum °CMinimum °CMaximum °C

Temperature

differential between

water discharge and

intake

Minimum

Maximum

°C

°C

Limits of use, YLCC (cooling only unit)

Water discharge temperature: +6° C to +15° C.
Brine discharge temperature: -5° C to +6° C.
Temperature difference in heat exchanger: 3 to 7° C.
Maximum air intake temperature: +46° C.
Minimum ambient temperature: +10° C (standard), -18° C
low ambient temperature kit (optional).

Limits of use, YLCC-H (heat pump unit)

Cool mode

Water discharge temperature: +6° C to +15° C.
Brine discharge temperature: -5° C to +6° C.
Temperature difference in heat exchanger: 3 to 7° C.
Maximum air intake temperature: +46° C.
Minimum ambient temperature: +10° C (standard), -18° C
low ambient temperature kit (optional).

Heat mode

Water discharge temperature: +30° C to +50° C.
Ambient temperature: -10° C to +20° C.
Temperature difference in heat exchanger: 3 to 7° C.
Minimum air intake temperature: 0° C with maximum dis­charge water temperature of 50° C.
Minimum air intake temperature: -5° C with maximum dis­charge water temperature of 45° C.

Nominal flows, cool only

The cooling capacities on the corresponding tables are valid
for the following nominal flows:

Model

YLCC-42 6 760 16.1 13 268 50

YLCC-62 11 020 43.5 20 122 50

YLCC-82 12 285 57 23 304 50

YLCC-102 16 424 94 28 834 50

YLCC-122 19 404 20.4 33 247 50

YLCC-152 22 948 45,6 38 312 50

Nominal

water flow

l/h

Pressure

drop

Kpa

Nominal

air flow

m3/h

Available

pressure fan

Pa

Nominal flows, heat pump

The capacities on the corresponding tables are valid for the
following nominal flows:

Available
pressure

fan
Pa

Model

Nominal water

flow l/h

Cool Heat

Pressure

drop

Kpa

Nominal

air flow

m3/h

Test conditions

Outdoor air

Voltage

400 V

Summer 35 24 12 7

Winter 7 6 40 45

10

temperature °C

DB WB

Water intake

temperature

°C

discharge

temperature

Water

°C

YLCC-H-42 7 107 6 829 16.4 13 268 50

YLCC-H-62 10 041 10 045 36.6 20 122 50

YLCC-H-82 12 211 13 629 56.6 23 304 50

YLCC-H-102 16 165 16 103 91 28 834 50

YLCC-H-122 17 977 18 889 17,5 37 403 50

YLCC-H-152 22 085 20 801 42,3 37 403 50

Cooling capacities

DB air temperature at condenser intake °C

Model

YLCC-42

Leaving

water
temp.

°C

5

6

7

8

9

10

11

12

5

25 30

W

Consump.

kW

Capacity

Capacity

44 260 16.20 40 843 16.74 37 868 17.11 34 250 17.65 31 115 17.56

45 788 16.56 42 290 17.11 38 994 17.65 35 738 18.02 32 361 18.56

47 315 16.74 43 818 17.47 40 200 18.20 36 984 18.56 33 728 19.11

48 923 17.11 45 386 17.84 41 929 18.56 38 431 18.93 34 974 19.47

50 491 17.47 46 954 18.20 43 416 18.93 39 878 19.47 36 381 20.02

52 220 17.84 48 562 18.56 44 944 19.29 41 205 19.84 37 627 20.57

53 908 18.20 50 129 18.93 46 471 19.66 42 773 20.38 38 914 20.93

55 556 18.56 51 778 19.29 48 039 20.02 44 260 20.75 41 366 21.48

70 464 24.52 65 024 25.35 60 288 25.90 54 528 26.72 49 536 26.59

Consump.

W kW

kW

Capacity

W

Consump.

kW

Capacity

W

4035

Consump.

kW W

Capacity

45

Consump.

YLCC-62

YLCC-82

10

11

12

10

6

7

8

9

5

6

7

8

9

72 896 25.07 67 328 25.90 62 080 26.72 56 896 27.27 51 520 28.10

75 328 25.35 69 760 26.45 64 000 27.55 58 880 28.10 53 696 28.93

77 888 25.90 72 256 27.00 66 752 28.10 61 184 28.65 55 680 29.48

80 384 26.45 74 752 27.55 69 120 28.65 63 488 29.48 57 920 30.31

83 136 27.00 77 312 28.10 71 552 29.20 65 600 30.03 59 904 31.13

85 824 27.55 79 808 28.65 73 984 29.75 68 096 30.86 61 952 31.68

88 448 28.10 82 432 29.20 76 480 30.31 70 464 31.41 65 856 32.51

79 823 28.62 73 660 29.59 68 295 30.23 61 770 31.20 56 115 31.03

82 578 29.27 76 270 30.23 70 325 31.20 64 453 31.84 58 363 32.80

85 333 29.59 79 025 30.87 72 500 32.16 66 700 32.80 60 828 33.77

88 233 30.23 81 853 31.52 75 618 32.80 69 310 33.45 63 075 34.41

91 060 30.87 84 680 32.16 78 300 33.45 71 920 34.41 65 613 35.38

94 178 31.52 87 580 32.80 81 055 34.09 74 313 35.05 67 860 36.34

11

12

Note: The cooling and heating capacities on the tables are in accordance with a liquid temperature increase, in the indoor exchanger, of
5° C (∆t = 5° C). DB = Dry bulb. RH = Relative humidity.

97 223 32.16 90 408 33.45 83 810 34.73 77 140 36.02 70 180 36.98

100 195 32.80 93 380 34.09 86 638 35.38 79 823 36.66 74 603 37.95

11

Cooling capacities

DB air temperature at condenser intake °C

Model

YLCC-102

Leaving

water
temp.

°C

5

6

7

8

9

10

11

12

5

W

45

Consump.

kW

25 30

W

Consump.

kW

Capacity

Capacity

105 806 39.86 97 638 41.21 90 526 42.10 81 877 43.45 74 381 43.22

109 458 40.76 101 097 42.10 93 217 43.45 85 433 44.34 77 361 45.69

113 110 41.21 104 749 43.00 96 100 44.79 88 412 45.69 80 628 47.03

116 954 42.10 108 497 43.89 100 232 45.69 91 872 46.58 83 607 47.93

120 702 43.00 112 245 44.79 103 788 46.58 95 331 47.93 86 971 49.27

124 834 43.89 116 089 45.69 107 440 47.48 98 503 48.82 89 950 50.61

128 870 44.79 119 837 46.58 111 092 48.37 102 250 50.16 93 025 51.51

132 810 45.69 123 777 47.48 114 840 49.27 105 806 51.06 98 887 52.85

127 716 57.21 117 856 59.14 109 272 60.42 98 832 62.35 89 784 62.03

W

Consump.

kW

Capacity

W

Consump.

kW

Capacity

W

4035

Consump.

kW

Capacity

YLCC-122

YLCC-152

10

11

12

10

132 124 58.49 122 032 60.42 112 520 62.35 103 124 63.64 93 380 65.57

6

136 532 59.14 126 440 61.71 116 000 64.28 106 720 65.57 97 324 67.49

7

141 172 60.42 130 964 62.99 120 988 65.57 110 896 66.85 100 920 68.78

8

145 696 61.71 135 488 64.28 125 280 66.85 115 072 68.78 104 980 70.71

9

150 684 62.99 140 128 65.57 129 688 68.14 118 900 70.07 108 576 72.64

155 556 64.28 144 652 66.85 134 096 69.42 123 424 71.99 112 288 73.92

160 312 65.57 149 408 68.14 138 620 70.71 127 716 73.28 119 364 75.85

156 893 60.14 144 780 62.16 134 235 63.52 121 410 65.54 110 295 65.21

5

162 308 61.49 149 910 63.52 138 225 65.54 126 683 66.89 114 713 68.92

6

167 723 62. 16 155 325 64.87 142 500 67.57 131 100 68.92 119 558 70.95

7

173 423 63.52 160 883 66.22 148 628 68.92 136 230 70.27 123 975 72.30

8

178 980 64.87 166 440 67.57 153 900 70.27 141 360 72.30 128 963 74.33

9

185 108 66.22 172 140 68.92 159 315 71.62 146 063 73.65 133 380 76.35

11

12

Note: The cooling and heating capacities on the tables are in accordance with a liquid temperature increase, in the indoor exchanger, of
5° C (∆t = 5° C). DB = Dry bulb. RH = Relative humidity.

12

191 093 67.57 177 698 70.27 164 730 72.98 151 620 75.68 137 940 77.71

196 935 68.92 183 540 71.62 170 288 74.33 156 893 77.03 146 633 79.73

Cooling capacities

DB air temperature at condenser intake °C

Model

YLCC-H-42

Leaving

water
temp.

°C

5

6

7

8

9

10

11

12

5

25 30

W

Consump.

kW

Capacity

Capacity

46 462 15.76 42 875 16.29 39 752 16.65 35 954 17.18 32 663 17.09

48 066 16.12 44 394 16.65 40 934 17.18 37 516 17.53 33 971 18.06

49 669 16.29 45 998 17.00 42 200 17.71 38 824 18.06 35 406 18.60

51 357 16.65 47 644 17.36 44 015 18.06 40 343 18.42 36 714 18.95

53 003 17.00 49 290 17.71 45 576 18.42 41 862 18.95 38 191 19.48

54 818 17.36 50 978 18.06 47 180 18.77 43 255 19.30 39 499 20.01

56 590 17.71 52 623 18.42 48 783 19.13 44 901 19.84 40 850 20.37

58 320 18.06 54 354 18.77 50 429 19.48 46 462 20.19 43 424 20.90

65 510 25.19 60 452 26.04 56 049 26.60 50 694 27.45 46 053 27.31

Consump.

W kW

kW

Capacity

W

Consump.

kW

Capacity

W

4035

Consump.

kW

Capacity

45

Consump.

W

YLCC-H-62

YLCC-H-82

10

11

12

10

6

7

8

9

5

6

7

8

9

67 771 25.75 62 594 26.60 57 715 27.45 52 896 28.02 47 898 28.87

70 032 26.04 64 855 27.17 59 500 28.30 54 740 28.87 49 921 29.72

72 412 26.60 67 176 27.73 62 059 28.87 56 882 29.43 51 765 30.28

74 732 27.17 69 496 28.30 64 260 29.43 59 024 30.28 53 848 31.13

77 291 27.73 71 876 28.87 66 521 30.00 60 988 30.85 55 692 31.98

79 790 28.30 74 197 29.43 68 782 30.56 63 308 31.70 57 596 32.55

82 229 28.87 76 636 30.00 71 103 31.13 65 510 32.26 61 226 33.39

79 823 28.95 73 660 29.93 68 295 30.58 61 770 31.55 56 115 31.39

82 578 29.60 76 270 30.58 70 325 31.55 64 453 32.20 58 363 33.18

85 333 29.93 79 025 31.23 72 500 32.53 66 700 33.18 60 828 34.16

88 233 30.58 81 853 31.88 75 618 33.18 69 310 33.83 63 075 34.81

91 060 31.23 84 680 32.53 78 300 33.83 71 920 34.81 65 613 35.78

94 178 31.88 87 580 33.18 81 055 34.48 74 313 35.46 67 860 36.76

11

12

Note: The cooling and heating capacities on the tables are in accordance with a liquid temperature increase, in the indoor exchanger, of
5° C (∆t = 5° C). DB = Dry bulb. RH = Relative humidity.

97 223 32.53 90 408 33.83 83 810 35.13 77 140 36.43 70 180 37.41

100 195 33.18 93 380 34.48 86 638 35.78 79 823 37.08 74 603 38.39

13

Cooling capacities

DB air temperature at condenser intake °C

Model

YLCC-H

102

Leaving

water
temp.

°C

Capacity

5 104 485 40.34 96 418 41.70 89 396 42.61 80 855 43.97 73 453 43.74

6 108 091 41.25 99 835 42.61 92 053 43.97 84 366 44.88 76 395 46.24

7 111 697 41.70 103 441 43.52 94 900 45.33 87 308 46.24 79 621 47.60

8 115 493 42.61 107 142 44.42 98 981 46.24 90 724 47.14 82 563 48.50

9 119 194 43.52 110 843 45.33 102 492 47.14 94 141 48.50 85 885 49.86

10 123 275 44.42 114 639 46.24 106 098 48.05 97 273 49.41 88 826 51.22

11 127 261 45.33 118 340 47.14 109 704 48.96 100 974 50.77 91 863 52.13

12 131 152 46.24 122 231 48.05 113 406 49.86 104 485 51.68 97 652 53.49

5 123 312 50.94 113 792 52.66 105 504 53.81 95 424 55.52 86 688 55.24

25 30

Consump.

W

kW

Capacity

W

Consump.

kW

Capacity

W

Consump.

kW

Capacity

W

4035

Consump.

kW

Capacity

45

W

Consump.

kW

YLCC-H

122

YLCC-H

152

6 127 568 52.09 117 824 53.81 108 640 55.52 99 568 56.67 90 160 58.38

7 131 824 52.66 122 080 54.95 112 000 57.24 103 040 58.38 93 968 60.10

8 136 304 53.81 126 448 56.10 116 816 58.38 107 072 59.53 97 440 61.25

9 140 672 54.95 130 816 57.24 120 960 59.53 111 104 61.25 101 360 62.96

10 145 488 56.10 135 296 58.38 125 216 60.67 114 800 62.39 104 832 64.68

11 150 192 57.24 139 664 59.53 129 472 61.82 119 168 64.11 108 416 65.83

12 154 784 58.38 144 256 60.67 133 840 62.96 123 312 65.25 115 248 67.54

5 155 792 61.46 143 764 63.54 133 293 64.92 120 558 66.99 109 521 66.64

6 161 169 62.84 148 858 64.92 137 255 66.99 125 794 68.37 113 908 70.44

7 166 546 63.54 154 235 66.30 141 500 69.06 130 180 70.44 118 719 72.51

8 172 206 64.92 159 754 67.68 147 585 70.44 135 274 71.82 123 105 73.89

9 177 724 66.30 165 272 69.06 152 820 71.82 140 368 73.89 128 058 75.97

10 183 809 67.68 170 932 70.44 158 197 73.20 145 038 75.28 132 444 78.04

11 189 752 69.06 176 451 71.82 163 574 74.58 150 556 77.35 136 972 79.42

12 195 553 70.44 182 252 73.20 169 093 75.97 155 792 78.73 145 604 81.49

Note: The cooling and heating capacities on the tables are in accordance with a liquid temperature increase, in the indoor exchanger, of
5° C (∆t = 5° C). DB = Dry bulb. RH = Relative humidity.

14

Heating capacities

DB outdoor

Model

ambient

temperature °C

(80% RH)

40 5045

W

Comp. kW

LWT °C

WW

Comp. kWComp. kW

YLCC-H-42

YLCC-H-62

-10

-5

0

5

7

10

15

20

-10

-5

0

5

7

28 476 14.55 26 668 15.13 24 860 15.71

33 900 15.91 31 640 16.68 29 832 17.27

38 420 16.88 36 612 17.46 34 352 18.43

45 652 18.04 42 488 19.01 41 132 19.98

47 912 18.43 45 200 19.4 42 940 20.37

51 076 19.01 48 816 19.98 46 556 21.15

59 664 20.18 57 856 21.34 55 144 22.89

73 676 21.15 68 252 22.7 64 636 23.86

40 446 21.83 37 878 22.7 35 310 23.57

48 150 23.86 44 940 25.03 42 372 25.9

54 570 25.32 52 002 26.19 48 792 27.65

64 842 27.06 60 348 28.52 58 422 29.97

68 052 27.65 64 200 29.1 60 990 30.56

YLCC-H-82

10

15

20

-10

-5

0

5

7

10

15

20

72 546 28.52 69 336 29.97 66 126 31.72

84 744 30.26 82 176 32.01 78 324 34.34

104 646 31.72 96 942 34.05 91 806 35.79

52 101 25.17 48 793 26.18 45 485 27.18

62 025 27.52 57 890 28.86 54 582 29.87

70 295 29.2 66 987 30.2 62 852 31.88

83 527 31.21 77 738 32.89 75 257 34.57

87 662 31.88 82 700 33.56 78 565 35.24

93 451 32.89 89 316 34.57 85 181 36.58

109 164 34.9 105 856 36.92 100 894 39.6

134 801 36.58 124 877 39.27 118 261 41.28

15

Heating capacities

DB outdoor

Model

YLCC-H-102

ambient

temperature °C

(80% RH)

-10 60 102 35.69 56 286 37.11 52 470 38.54

-5 71 550 39.02 66 780 40.92 62 964 42.35

10 107 802 46.63 103 032 49.01 98 262 51.86

15 125 928 49.48 122 112 52.34 116 388 56.14

20 155 502 51.86 144 054 55.67 136 422 58.52

LWT °C

40

W

0 81 090 41.39 77 274 42.82 72 504 45.2

5 96 354 44.25 89 676 46.63 86 814 49.01

7 101 124 45.2 95 400 47.58 90 630 49.96

Comp. kW

W

45

50

W

Comp. kWComp. kW

YLCC-H-122

YLCC-H-152

-10 73 395 44.84 68 735 46.64 64 075 48.43

-5 87 375 49.03 81 550 51.42 76 890 53.21

0 99 025 52.02 94 365 53.81 88 540 56.8

5 117 665 55.6 109 510 58.59 106 015 61.58

7 123 490 56.8 116 500 59.79 110 675 62.78

10 131 645 58.59 125 820 61.58 119 995 65.17

15 153 780 62.18 149 120 65.77 142 130 70.55

20 189 895 65.17 175 915 69.95 166 595 73.54

-10 90 090 49.25 84 370 51.22 78 650 53.19

-5 107 250 53.85 100 100 56.48 94 380 58.45

0 121 550 57.13 115 830 59.1 108 680 62.39

5 144 430 61.07 134 420 64.36 130 130 67.64

7 151 580 62.39 143 000 65.67 135 850 68.95

16

10 161 590 64.36 154 440 67.64 147 290 71.58

15 188 760 68.3 183 040 72.24 174 460 77.49

20 233 090 71.58 215 930 76.83 204 490 80.77

Hydraulic circuit flow/pressure characteristics of YLCC and YLCC-H

YLCC/YLCC-H 42
YLCC/YLCC-H 62

2.4

2.2

2.0

1.8

1.6

1.4

1.2

1.0

Pressure drop (bar)

0.800

0.600

0.400

0.200

0.000

YLCC/YLCC-H 62

YLCC/YLCC-H 82 & 102
YLCC/YLCC-H 122

2.4

2.2

2.0

1.8

1.6

1.4

1.2

YLCC/YLCC-H 42

1000090008000700060005000

12000 13000

1400011000

15000 16000 17000 18000 19000

20000 21000 22000 23000 24000 25000 26000 27000

FLOW (l/h)

1.0

Pressure drop (bar)

0.800

0.600

0.400

0.200

0.000

YLCC/YLCC-H 82 & 102

1000090008000700060005000

12000 13000

1400011000

15000 16000 17000 18000 19000

FLOW (l/h)

YLCC/YLCC-H 122

20000 21000 22000 23000 24000 25000 26000 27000

17

Hydraulic circuit flow/pressure characteristics of YLCC and YLCC-H

YLCC/YLCC-H 152

2,4

2,2

2,0

1,8

1,6

1,4

1,2

1,0

Pressure drop (bar)

0,800

0,600

0,400

0,200

0,000

YLCC/YLCC-H 152

1000090008000700060005000

12000 13000

1400011000

15000 16000 17000 18000 19000

20000 21000 22000 23000 24000 25000 26000 27000

FLOW (l/h)

18

Fan performances

Model

YLCC
YLCC-H
42/42V

YLCC
YLCC-H
62/62V

Standard unit

Available static

pressure

mm WG Pa m3/h m3/s W

0 0 14 452 4.01 3 100

2 20 14 006 3.89 2 990

4 39 13 544 3.76 2 880

5.1 50 13 268 3.68 2 835

6 59 13 054 3.63 2 790

8 78 12 562 3.49 2 660

10 98 12 078 3.35 2 550

12 118 11 550 3.21 2 440

14 137 11 050 3.07 2 325

16 157 10 580 2.94 2 210

18 176 10 090 2.80 2 100

20 196 9 600 2.66 1 990

0 0 21 406 5.94 5 530

2 20 20 937 5.81 5 370

4 39 20 434 5.67 5 225

5.1 50 20 122 5.59 5 140

6 59 19 874 5.52 5 055

8 78 19 297 5.36 4 860

10 98 18 702 5.19 4 690

12 118 18 163 5.04 4 580

Air flow

Absorbed

power

Model

YLCC
YLCC-H
102/102V

YLCC
122/122V

Standard unit

Available static

pressure

mm WG Pa m3/h m3/s W

0 0 30 694 8.53 8 990

2 20 29 964 8.32 8 720

4 39 29 231 8.12 8 480

5.1 50 28 834 8.01 8 300

6 59 28 500 7.92 8 100

8 78 27 794 7.72 7 840

10 98 27 121 7.53 7 620

12 118 26 360 7.32 7 410

14 137 25 820 7.17 7 200

16 157 25 160 6.98 6 980

18 176 24 410 6.78 6 765

20 196 23 755 6.59 6 550

0 0 34 951 9.71 10 550

2 20 34 282 9.51 10 317

4 39 33 613 9.33 10 084

5.1 50 33 247 9.23 9 955

6 59 32 618 9.06 9 799

8 78 32 287 8.97 9 455

10 98 31 586 8.77 9 172

12 118 30 885 8.58 8 890

14 137 30 188 8.38 8 607

Air flow

Absorbed

power

YLCC
YLCC-H
82/82V

14 137 17 450 4.85 4 460

16 157 16 880 4.68 4 340

18 176 16 250 4.51 4 215

20 196 15 600 4.33 4 090

0 0 24 828 6.89 6 610

2 20 24 226 6.73 6 409

4 39 23 646 6.57 6 219

5.1 50 23 304 6.47 6 110

6 59 23 032 6.39 6 040

8 78 22 405 6.22 5 820

10 98 21 761 6.04 5 625

12 118 21 090 5.86 5 515

14 137 20 410 5.67 5 395

16 157 19 825 5.51 5 270

18 176 19 190 5.33 5 145

20 196 18 480 5.13 5 035

YLCC-H
122/122V
152/152V

YLCC
152/152V

16 157 29 491 8.19 8 325

18 176 28 785 7.99 8 042

20 196 28 080 7.81 7 760

4 39 37 751 10.48 13 575

5.1 50 37 403 10.29 13 310

8 78 36 427 10.12 12 790

12 118 35 108 9.75 12 090

16 157 33 707 9.36 11 415

20 196 32 256 8.96 10 672

24 235 30 683 8.52 9 985

4 39 38 700 10.75 14 169

5.1 50 38 312 10.64 13 990

8 78 37 324 10.37 13 470

12 118 35 896 9.97 12 747

16 157 34 463 9.57 12 062

20 196 32 968 9.16 11 320

24 235 31 282 8.69 10 570

19

Correcting factors

Foul factors

Foul factor m

°C/kW

0.044 1.000 1.000

0.088 0.987 0.995

0.176 0.964 0.985

2

Evaporator

Capacity factor

Absorbed power

factor comp.

A mixture of glycol and water has a freezing point below that
of pure water. Depending upon the concentration of glycol in
the solution, an even lower freezing point can be achieved
and this protects the circuit when the unit is off and ambient
temperature is low (below 0° C). This table indicates freezing
point in accordance with glycol concentration. This concen­tration appears in % per weight.

Recommended glycol concentration

LWT °C Glycol % per weight

0.352 0.926 0.962

Altitude factors

Altitude (m) Capacity factor

0 1.000 1.000

600 0.987 1.010

1 200 0.973 1.020

1 800 0.958 1.029

2 400 0.943 1.038

Absorbed power

factor comp.

Correcting factors for real temperature of coil air intake at
flows other than nominal

% Flow 70 80 90 100 110 120 130

Correction in °C on real
temperature of coil
intake temperature

5 3 1.5 0 -1 -2 -2.5

Factors with water and glycol

Glycol can be used for antifreeze protection, or as brine for
operation at low temperatures. We recommend the use of
water and glycol when the discharge water temperature is
below +6° C. The “Solution with glycol/freezing point” table
gives the freezing point of water with glycol, and the “Recom­mended glycol concentration” table shows the glycol concen­tration needed, depending upon application.
Glycol contains anticorrosive and antifoam components that
favour circuit protection.

6°C > LWT > 0°C 20

0°C > LWT > -5°C 30

The glycol concentration in the water should be checked regu­larly to ensure adequate protection of the chiller.

Correcting factors

Nominal capacity

Ethylene

glycol

percentage

by weight

(%)

20

30

LWT

5 1.045 0.902 0.754

4 1.004 0.866 0.726

3 0.962 0.83 0.697

2 0.921 0.794 0.669

1 0.879 0.758 0.64

0 0.838 0.722 0.612

-1 0.795 0.681 0.574

-2 0.764 0.652 0.545

-3 0.734 0.623 0.515

correcting factors

Air temperature at

condenser intake (°C DB)

25 35 45

Solution with glycol/freezing point

% Glycol weight per weight Freezing point °C

00

10 -4

20 -10

30 -17

35 -20

40 -25

50 -37

20

-4 0.703 0.594 0.486

-5 0.673 0.565 0.457

Water flow correcting factors for ethylene glycol solu­tions

Ethylene glycol

percentage by weight

(%)

20 1.035 1.16

30 1.075 1.27

Correcting factors

Water flow Pressure drop

Installation instructions

General information

The YLCC water chillers and heat pumps are factory-charged
and tested packaged units.

Inspection

Upon reception, inspect the goods and notify the carrier and
the insurance company, in writing, of any possible damage
during transportation.

Attention: Do not touch hot surfaces.

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.

Elimination of the unit

Upon disassembly of the unit after a long service life, the
components should be recuperated ecologically. The cooling
circuit is full of refrigerant, which should be recuperated and
returned to the gas manufacturer for recycling.
Oil will remain in the hermetic compressor and, therefore,
must be returned with its circuit sealed.
The air conditioning unit will be deposited in an area deter­mined by the local authorities, for its selective recuperation.

Warning signs

The following signs indicate the existence of potentially dan­gerous conditions for users or servicing personnel.
Whenever found on the unit itself, take the meaning of each
one into account.

This symbol indicates an electrical danger
or risk.

Attention: The unit is equipped with re­mote control and can start automati­cally. Two minutes prior to having ac­cess to the interior, disconnect the
power supply so as to avoid any con­tact with the fan turbine in motion.

Attention: Lifting point.

Transportation

The units should always be transported in vertical position
so as to avoid oil leaking out of the compressor. If, for any
reason, this position need be changed sporadically, they will
remain in that position a strictly necessary period of time only.
To move the units to their final location, the four rectangular
openings in the bed frame can be used with a forklift truck, or
the four cylindrical holes at the ends of the bed frame for
elevation.

Attention: It is obligatory to read the in­structions prior to any handling.

Attention: Fan in operation.

YLCC
YLCC-H

21

Clearances

When installing each unit, clearances should be left for:
1- Air intake and discharge.
2- Water, drain and power supply connections
3- Maintenance servicing.
Note: See minimum clearances indicated on the general di­mensions diagrams.

Drainage

The unit has two connections for draining condensed water
accumulated in the coil during operation in the winter cycle,
or for fully emptying the unit. The outer diameter of these
connections is 28 mm. At outdoor temperatures below 0° C,
condensed water can freeze and obstruct the drain. It is ad­visable to take this into account and, when considered nec­essary, install a flexible electric heater. This heater can be
connected by means of an ambient thermostat set to 3° C,
for example. This thermostat activates the heater when the

temperature is below the set point.

Locating and securing the unit

These units are designed to be placed on the floor indoors.
With air discharge and return ducts, if necessary. Before open­ing the packing, 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 (optional acces­sory).
If the unit is to be placed on the floor, a concrete base should
be prepared so as to distribute weight evenly.
The following illustration shows the spaces and fastening
points that correspond to the location of each model.

Location dimensions

A

E

B

F

E

Model A B C D E F Ø G

42 2 240 774 200 1 840 55 664 16.5 (4)

CDC

ANCHORING
HOLES Ø G

62 2 240 929 200 1 840 55 819 16.5 (4)

82 2 891 1 000 200 1 245.5 (x 2) 55 890 16.5 (6)

102 2 891 1 000 200 1 245.5 (x 2) 55 890 16.5 (6)

122 3 200 1 300 200 1 400 (x2) 55 1 190 16.5 (6)

152 3 200 1 300 200 1 400 (x2) 55 1 190 16.5 (6)

22

Hydraulic connections

The hydraulic connections of the water intake and outlet of
the chiller should be carried out respecting the intake and
outlet directions indicated at the front of the unit.
An iron (not galvanised) or copper tubing can be use, with
dimensions no lower than those indicated, and keeping in
mind the pressure drops of the indoor exchanger and of the
installation.
Pump dimensioning should be carried out considering a nomi­nal flow that allows the ∆t of the project within the limits of the
unit: min. 3° C and max. 7° C. The head pressure of the pump
chosen must cover the pressure drops of the installation plus
the pressure drops of the chiller.
It is convenient that the tubing connection be carried out by
means of anti-vibratory couplings.
In all cases, a flow switch must be installed so as to avoid the
possibility of operation without water circulation, as well as a
water filter (both are obligatory for warrantee application).
In the water feedback tubing, an expansion vessel adequate
to the total volume of the water in the installation should also

Hydraulic connections diagram

be installed in the unit.
Chiller water volume is as follows:

Size Litres

42 25
62 28

82 38.2
102 38.2
122 78.5
152 73.5

During the winter season, with outdoor temperatures below
0° C, precautions should be taken to avoid the water from
freezing in the tubing networks and inside the inner chiller
exchanger.
The following solutions are usually applied:
a) Drain the circuit.
b) Fill the circuit with an antifreeze mixture (glycol).
c) Keep the circulator in constant operation.
Note: See hydraulic connections diagram.

YLCC
YLCC-H

FLEXIBLE GASKET

WATER GAUGE

FLEXIBLE GASKET

FILTER

CIRCULATING
PUMP

BUFFER TANK
(IF NECESSARY)

EXPANSION
VESSEL

ISOLATOR
VALV E

DRAIN

THERMOMETERWATER GAUGE

SAFETY
VALV E

PURGER

FLOW SWITCH

AUTOMATIC FILLING
ASSEMBLY

23

Hydro kits GH

To avoid discomfort caused by a water temperature drop in
the defrost cycle, or tripping of the antifreeze thermostat in
small volume installations, it is necessary to use an accumu­lator tank to increase the thermal inertia of the installation.
Water volumes of the GH kits and their compatibility with the
YLCC/YLCC-H units are as follows:

YLCC / YLCC-H Litres

42 200
62 260

82 260
102 600 S
122 600 S
152 600 P

Nevertheless, in each case the minimum volume needed for
the installation should be checked.

Circulating pump

For satisfactory operation of the units, it is essential to select
an adequate pump to supply sufficient flow and pressure to
the hydraulic circuit. Use the following table for this purpose.

YLCC/

YLCC-H

unit

42 6 700 1.86 15 147
62 10 100 2.8 15 147

82 13 500 3.75 15 147
102 17 200 4.77 15 147
122 19 900 5.53 15 147
152 25 800 7.16 15 147

Approximate pump

flow ∆ t 5°C

l/h l/s m WG kPa

Minimum pressure supplied

by the pump

Flow switch

The hydraulic circuit to which the unit is connected is equipped
with a flow switch that avoids operation of the air conditioner
without sufficient water flow. The installation of this switch is
absolutely indispensable, as well as checking correct setting
and operation during installation commissioning.

Application to YLCC/YLCC-H units

These flow switches can be used on water or glycol circulat­ing tubing. They are designed for locking; that is to sea, pro­tection against a lack of liquid circulation. The switch is to be
mounted on horizontal tubing, in a section having a straight
run of at least five times the tubing diameter on each side of
the flow switch. Do not install near valves, elbows or open­ings. Installation should be such that terminals are accessi­ble for easy connection. The switch is marked with the flow
direction. For 1" tubing, mount the switch on a standard 1" x
1" x 1" tee joint. Use a reducer tee on larger size tubing to
keep the flow switch set to same and achieve an adequate
length of the tab in the flow current. Example: use a 2" x 2" x
1" tee for 2" tubing. If a standard tee is used, install a buffer or
sleeve at the top of the opening. Adjust the tab length to the
tubing size. For 1", 2" or 3" tubing, us the tab segments sup­plied. For example: for 2" tubing remove the 3" tab; for 1 ½”
tubing, cut the tab to the tubing size or use the 1" tab.

L/min. flow values needed for switch operation

No part of the tab should touch the tubing or narrowing points
of same. Screw flow switch on in a position in which the plane
of the tab is in right angle to the flow. The arrow appearing on
the side of the box should point in the flow direction.

Setting

This switch is factory-set approximately at the minimum flow
value (see “Flow values table”). To achieve a higher flow value,
turn the adjusting screw on the scale clockwise.

Flows

This table shows adjustable flows based on real test data,
using 1", 2" and 3" vanes for 1-6" tubing. The differential (dif­ference between ON and OFF) depends upon flow condi­tions. (Flows for “flow increase” that appear in parenthesis
are predetermined values.)

Adjustable flow (litres/minute)

Tubing

dia.

1" 1 18 (21) 45 (50)

Vane

dia.

Flow

decrease

Min. Max.

Flow

increase

Flow

decrease

Flow

increase

24

1 1/4" 1 43 (46) 100 (102)

1 1/2" 1 63 (68) 140 (145)

2" 1 105 (120) 250 (255)

2 1/2" 1 195 (200) 565 (570)

3" 1 360 (370) 850 (880)

2" 2 50 (50) 150 (155)

2 1/2" 2 105 (120) 355 (360)

3" 2 170 (180) 480 (490)

Note: Flow decrease: Flow at which the switch is activated when flow

decreases.

Flow increase: Flow at which the switch is activated when flow

increases.

Wiring

400.3.50 + N

L1

L2

L3

N

B 1 234567

FLOW SWITCH

VOLT-FREE CONTACT
WATER PUMP CONTACTOR

VOLT-FREE CONTACT

ALARM OUTLET

COOL/HEAT

ON/OFF

(*)

(*) REMOVE JUMPER BETWEEN TERMINALS B and 5.

CONNECT A FLOW SWITCH

X2...

Each unit is supplied with a control box to which the power
supply will be connected through an automatic switch or a
fused main switch.
Wiring should be carried out in accordance with the corre­sponding wiring diagram of the unit, taking into account gen­eral characteristics and limits of use (see corresponding ta­ble).
Wiring should always be carried out in accordance with ap­plicable national regulations.

Loose cables can cause overheating of terminals or incorrect opera­tion of the unit. Fire hazards may also exist. Therefore, make sure all
cables are connected firmly.

Wiring diagrams

Power and operating connection
YLCC/YLCC-H 42, 62, 82 & 102

400.3.50 + N

L3

L1

X2...

R 1234567

ON/OFF

N

L2

VOLT-FREE CONTACT

ALARM OUTLET

COOL/HEAT

VOLT-FREE CONTACT
WATER PUMP CONTACTOR

(*)

FLOW SWITCH

Do not connect power supply to the unit, nor turn it on, until all tubing
and wiring is connected. Check correct power supply connection to the
units in accordance with the wiring diagrams.

YLCC/YLCC-H 122 & 152

(*) REMOVE JUMPER BETWEEN TERMINALS R and 5.

CONNECT A FLOW SWITCH

Remote control connection (optional)

YLCC/YLCC-H 42, 62, 82 & 102

Remote
control

R B3412RX2...

Violet

ALARM

Blue

Yellow

INTAKE

ON/OFF

Black

White

1

234567

24 VAC

7 x 0.35 mm
Cable

Grey

Brown

COMMON

COOL/HEAT

YLCC/YLCC-H 122 & 152

R B3412BX2...

2

Violet

ALARM

Blue

Yellow

INTAKE

Black

White

1

234567

24 VAC

Grey

ON/OFF

COOL/HEAT

7 x 0.35 mm
Cable

Brown

COMMON

2

25

Operating and start-up instructions

YLCC and YLCC-H control system

The YLCC and YLCC-H-42, 62, 82 and 102 (two separate
compressors and two cooling circuits) is a multipurpose con­troller programmed for use with air-water chiller and heat pump
units.

Standard components

- System and first cooling circuit control base plate. This

is the central nucleus that processes the signals coming
from the probes and protection elements of the entire sys­tem. Directly receives the signals from the first circuit and
controls its active elements: compressor 1, fan 1, 4-way
valve 1, water circulating pump, alarm relay and antifreeze
heater 1 (if installed). 24 Vac.

- Second cooling circuit expansion and control board.

This is an expansion of the base plate to be connected by
means of a specific connector. Receives the signals from
the second circuit and controls its active elements: com­pressor 2, fan 2, 4-way valve 2 and backup heater 2 (if in­stalled).

- Local terminal. For accessing and controlling the system

by means of the display, keys and LEDs. Allows selecting
cool, heat and off functions. Also allows changing operat­ing parameters, as well as monitoring the system. Can be
installed at a distance of 2 m. from the base plate. Is in­cluded inside the control panel and is to be connected to
the base plate by means of an 8-lead telephone cable.

- Fan ON/OFF control module. Used on heat pump units

with centrifugal fans equiped with three-phase motors with
on speed control. These modules should be connected to
the base and expansion plates respectively. They act di­rectly upon the fan contactor.

- NTC probes. 5 NTC probes are used to read system tem-

peratures. One is located at the common water intake of
the two evaporating units, another two at each water outlet
of said units, and the remaining two at the coil to control
defrost cycles. (On cooling units, 3 NTC probes are used:
one at water intake and two at water discharge).

FAN-1

CONDENSER SENSOR-1

(1)

CONDENSER-1

4-WAY
VALVE-1

HIGH
PRESSURE
SWITCH-1

EVAPORATOR-1

LWT SENSOR
EXCHANGER-1

ANTIFREEZE
HEATER-1

LOW PRESSURE
SWITCH-1

FLOW
SWITCH

LWT SENSOR
EXCHANGER-2

ANTIFREEZE
HEATER-2

EWT
SENSOR

LOW
PRESSURE
SWITCH-2

(1)

EVAPORATOR-2

FAN-2

CONDENSER SENSOR-2

CONDENSER-2

4-WAY
VALVE-2

HIGH
PRESSURE
SWITCH-2

Note: (1) Used on heat pump models.

26

THERMAL PROTECTOR
COMP.-1

PUMP

THERMAL PROTECTOR
COMP.-2

Interconnecting diagram

FAN CONTROL
MODULE
CIRCUIT 1

1234

5678

PERMANENT
SPEED

comp

x 100

PRG

mute

SEL

clear

chiller

µ

LOCAL TERMINAL

st

PCB 1 CIRCUIT

KEY

GGO

P6

GND Y1

FAN 1

SERIAL

µ
P

B1 B2 B4

1-2= NTC

2-3=ON/OFF

GND B1 GND B2 GND B3 24V

3

2

1

P1

24 Vac

NTC PROBE

EWT EVAPORATOR 1

LWT EVAPORATOR 1

CONDENSER TEMPERATURE 1

B3 B5

1-2= NTC

NO C NO C NO CNO C NC NO C NC

NO C NO C NC NO C

2-3= 4-20mA

RES.1 COMP.1 VALVE 1 PUMP ALARM

IDCOM ID1 ID2 ID3 ID4 ID5 ID6 ID7

P5P4P3P2

NOT IN USE

24 Vac

HIGH PRESSURE SWITCH CIRCUIT 1

LOW PRESSURE SWITCH CIRCUIT 1

THERMAL PROTECTOR COMPRESSOR 1 (OR FAN ON YLCC)

THERMAL PROTECTOR FAN 1 (YLCC-H ONLY)

FLOW SWITCH

REMOTE ON/OFF

REMOTE HEAT/COOL

FAN CONTROL
MODULE
CIRCUIT 2

1234

5678

PERMANENT
SPPED

NTC PROBE

GND Y2

FAN 2

GND B4 GND B5 24V

LWT EVAPORATOR 2

CONDENSER TEMPERATURE 2

NOT IN USE

P1

ID8 ID9 ID10 ID11

VALVE 2 COMP.2 RES.2

HIGH PRESSURE SWITCH CIRCUIT 2

LOW PRESSURE SWITCH CIRCUIT 2

THERMAL PROTECTOR COMPRESSOR 2 (OR FAN ON YLCC)

THERMAL PROTECTOR FAN 2 (YLCC-H ONLY)

PCB 2nd CIRCUIT

27

Identification of system intakes and outlets

Terminals Description

B1-GND Water temp. probe at evaporating unit intake
B2-GND Water temp. probe at evaporating unit outlet (Circuit 1)
B3-GND Fan speed and circuit defrost control probe (Circuit 1)
B4-GND Evaporating unit water discharge temp. (Circuit 2)
B5-GND Fan speed and circuit defrost control probe (Circuit 2)
ID1-IDCOM High pressure switch (Circuit 1)
ID2-IDCOM Low pressure switch (Circuit 2)
ID3-IDCOM Compressor thermal protector (Circuit 1) (YLCC and YLCC-H - 82 and 102 only) (or fan on YLCC)
ID4-IDCOM Fan thermal protector (Circuit 1) (YLCC-H only)
ID5-IDCOM Water flow switch and auxiliary contact of pump contactor
ID6-IDCOM Remote ON/OFF
ID7-IDCOM Remote cool/heat
ID8-IDCOM High pressure switch (Circuit 2)
ID9-IDCOM Low pressure switch (Circuit 2)
ID10-IDCOM Compressor thermal protector (Circuit 2) (YLCC and YLCC-H - 82 and 102 only) (or fan on YLCC)
ID11-IDCOM Fan thermal protector (Circuit 2) (YLCC-H only)
Y1-GND PWM analogical outlet for fan control (Circuit 1)
Y2-GND PWM analogical outlet for fan control (Circuit 2)
RES. 1 Antifreeze or backup heater (Circuit 1)
COMP. 1 Compressor (Circuit 1)
VALVE 1 4-way valve (Circuit 1)
PUMP Water pump
ALARM General alarm remote signal
RES. 2 Antifreeze or backup heater (Circuit 2)
COMP. 2 Compressor (Circuit 2)
VALVE 2 4-way valve (Circuit 2)

Accessories

Remote control unit

For access and control by means of the buttons and LEDs
available.
Allows selecting the cool, heat and OFF functions, and the

1

3

5

2

4

6

red LED indicates any failure.
Can be installed at a maximum distance of 50 m. The remote
terminal should be connected to the unit with a 7 x 0,35 mm
cable.

1- Voltage indicator LED. When the LED is on, the machine

is powered.

2- General alarm LED. When this LED is on, the unit has a

failure.
3- On/Off push button.
4- On/Off LED. When on, the unit is in operation.
5- Cool/heat pushbutton.
6- Cool/heat LED. When LED is off, cool mode. When the

LED is on, heat mode.

2

28

Programmable key (Fig. 1)

Allows uploading and downloading the unit operating program
by means of the user terminal keys. Proceed as follows:

Copying the key on the EEPROM memory of the unit

1.- Insert the key in the specific base plate connector.

2.- With the unit turned off, press and PRG keys simulta­neously.

3.- Holding these keys down, turn the system on.

4.- Once the copying process is over, the letters CE will ap­pear on the display.

Copying the EEPROM memory on the key

1.- Insert the key in the specific base plate connector.

2.- With the unit turned off, press and PRG keys simulta­neously.

3.- Holding these keys down, turn the system on.

BASE PLATE

4.- Once the copying process is over, the letters EC will ap­pear on the display.

Serial board RS485 (Fig. 2)

Allows connecting the system to a standard RS485 monitor­ing network. By means of the clip-switch system included, up
to 199 units can be addressed. For installation, proceed as
follows:

1.- Turn the unit off.

2.- Insert the RS485 board in the SERIAL connector of the
base plate.

3.- When the serial line connection is being carried out, pay
attention to the polarity indicated.

4.- The serial line should be closed by means of a 120 ohms
¼ w resistance installed between terminals TX/RX + and
TX/RX - of the board located at the end of the network.

KEY

RS485 serial board

KEY

TO THE RS485
MONITORING NETWORK

TxRx TxRx

GND

4
3
2
1

ON OFF

TO BASE PLATE
"SERIAL"
CONNECTOR

G GO GND B1 GND B2 GND B3 24V

3
2
1

P1

B1 B2 B4

1-2= NTC
2-3=ON/OFF

µ

P

SERIAL

GND Y1

P6

Fig. 1

IDCOM ID1 ID2 ID3 ID4 ID5 ID6 ID7

P5P4P3P2

B3 B5

1-2= NTC
2-3= 4-20mA

RES.1 COMP.1 VALVE 1 PUMP ALARM

NO C NO C NC NO C

NO C NO C NC

RS485 SERIAL
CONVERTER

G GO GND B1 GND B2 GND B3 24V IDCOM ID1 ID2 ID3 ID4 ID5 ID6 ID7

2
1

B1 B2 B4

1-2= NTC
2-3=ON/OFF

KEY

µ

P

SERIAL

GND Y1

P6

NO C NO C NC

P5P4P3P23P1

B3 B5

1-2= NTC
2-3= 4-20mA

RES.1 COMP.1 VALVE 1 PUMP ALARM

NO C NO C NC NO C

120 W

Fig. 2

29

Unit addressing

Unit addressing within the network can be selected by means
of the value given to parameter HA and the dip-switch sys­tem configuration included in serial board RS485. Effective
addressing is obtained by adding the offset value taken from
the following table to HA.
For example, if the HA value is 12 and dip-switch 1 is set to
ON, the address obtained will be 12 + 128 = 140.

OFFSET DIP 1 DIP 2 DIP 3 DIP 4

0 off off off off
16 off off off ON
32 off off ON off
48 off off ON ON
64 off ON off off
80 off ON off ON
96 off ON O N off

112 off ON ON ON
128 ON off off off
144 ON off off off
160 ON off ON off

Unit control

comp

x 100

PRG

mute

SEL

clear

chiller

µ

operating mode, monitor its status and set operating param­eters. There are more keys available on the remote terminal
version for working ease. Key functions and their variants,
when pressed two at a time, are detailed below.

Activation/deactivation of “COOL” function

The COOL function can be activated and deactivated by
pressing the COOL key for over 5 seconds. It is impossible to
go directly from the HEAT to the COOL mode without previ­ously deactivating the HEAT function.

Activation/deactivation of “HEAT” function

The HEAT function can be activated and deactivated by press­ing the HEAT key for over 5 seconds. It is impossible to go
directly from the COOL to the HEAT mode without previously
deactivating the COOL function.

Access to “DIRECT” parameters

The DIRECT parameters are accessible to the user and are
related to set points and their differentials, to entering and
discharge water temperature of the exchanger, to the refrig­erant temperature in the coil and to the compressor and pump
operating hours counters. Pressing the SEL key for over 5
seconds displays the code of the first parameter, which is the
cool cycle set point. Pressing the and keys moves you
through all DIRECT codes available. Pressing SEL once again
displays the parameter value of the pre-selected code, which
can be changed with the and keys. Pressing the PRG
key memorizes the new values and exits the procedure. If for
over 10 seconds no modification is made, the display begins
to flash. If no other key is pressed in 60 seconds, the unit will
go back to normal status without changing any parameter.

Display

The display always shows, by default, the return water tem­perature detected by probe B1. This comprises three figures
with automatic viewing of a decimal point between -19.9 and
+19.9° C. Beyond this range, the displayed value will always
comprise two figures. E.g. 21° C. Nevertheless, the regulator
in the internal program always operates based on tenths of a
degree.

Unit status

Unit status information is indicated by 5 LEDs located on the
terminal display, and 2 LEDs (yellow and green) on the base
plate.

Led Flashing On
Comp. (left) Comp. 1 in demand (Temp.) Comp. 1 activated
Comp. (right) Comp. 2 in demand (Temp.) Comp. 2 activated
Cool Operating in COOL
Heat Operating in HEAT
x 100 Value x 100

Keyboard

The terminal keyboard is comprised of four keys: PRG/mute,
SEL, /HEAT and /COOL. These keys allow selecting unit

"DIRECT"

parameter

c9 Operating hours compressor 1 Readout hours x 100

cA Operating hours compressor 2 Readout hours x 100

cC Operating hours water pump Readout hours x 100

Description Factory value

r1 COOL set point 12°C

r2 COOL cycle differential 3°K

r3 HEAT set point 40°K

r4 HEAT cycle differential 3°K

r6 Water discharge temp. exchanger 1 Readout °C

r7 Water discharge temp. exchanger 2 Readout °C

r8 Refrigerant temp. coil 1 Readout °C

r9 Refrigerant temp. coil 2 Readout °C

Access to “USER” parameters

The USER parameters are those used by the unit to operate
accordingly. These are protected by a password to avoid ac­cess to unauthorized personnel. Pressing the PRG key for
over 5 seconds displays 00 flashing. Enter the password (au­thorized personnel) and press SEL. Pressing the and
keys moves you through all USER parameters available.
Pressing SEL once again displays the parameter value of the

30

pre-selected code, which can be changed with the and
keys. Pressing the PRG key memorizes the new values and
exits the procedure. If for over 10 seconds no modification is
made, the display begins to flash. If no other key is pressed
in 60 seconds, the unit will go back to normal status without
changing any parameter.

Access to “FACTORY” parameters

The FACTORY parameters are factory-set. These are pro­tected by a password to avoid access to unauthorized per­sonnel. Pressing the PRG and SEL keys simultaneously for
over 5 seconds displays 00 flashing. Enter the password (au­thorized personnel) and press SEL. The first FACTORY pa­rameter is displayed. Pressing the and keys moves you
through all FACTORY parameters available. Pressing SEL
once again displays the parameter value of the pre-selected
code, which can be changed with the and keys. Press­ing the PRG key memorizes the new values and exits the
procedure. If for over 10 seconds no modification is made,
the display begins to flash. If no other key is pressed in 60
seconds, the unit will go back to normal status without chang­ing any parameter.

Deactivation of the buzzer

To deactivate the alarm buzzer, press the MUTE key. (The
buzzer will become operative only is programmed previously.)

Alarm reset

Pressing the and keys for over 5 seconds (if using a

Key

SEL

PRG

UP / HEAT

DOWN / HEAT

PRG + SEL

SEL + UP

UP + DOWN

PRG

PRG + UP

Unit status Action
Normal operation. Entering water temp. is

displayed (probe B1)
List of parameters

Display of values

Normal operation

List of parameters

Display of values

Buzzer active

Normal operation

List of parameters

Display of values

Normal operation

List of parameters

Display of values

Normal operation

Normal operation

Normal operation

Display of hours

In start-up

In start-up

In start-up Copies EEPROM on the keyPRG + DOWN

remote terminal, press the CLEAR key for over 5 seconds)
will cancel present in the memory. The alarm message will
also disappear from the display and the alarm relay will be
deactivated.

Forces defrost (YLCC-H)

Pressing the SEL and keys simultaneously for over 5 sec­onds activates the forced defrost cycle of both coils, as long
as the temperature of said coils is below the value set for
finalizing defrost.

Clearing hour counters

When displaying compressor or heat pump operating hours
(parameters c9, cA and cC), the counter can be cleared by
pressing the and keys simultaneously (if a remote termi­nal is being used, press the CLEAR key).

Installation of default parameters

With the unit turned off, press the PRG key. Holding this key
down turns the system on. Once this process is over, the
letters dF appear on the display. The default parameters are
those included by the controller manufacturer and affect the
DIRECT and USER parameters based on the FACTORY val­ues.

Adjusting display contrast

On remote terminals only. Press the key located between
MUTE and PRG to access the three contrast levels avail­able.

Summery of keyboard functions

DIRECT parameters appear after 5 seconds

Display of values

Display list of parameters

USER parameters appear after 5 seconds

Memorizes EEPROM values and then displays probe B1
temperature.

Memorizes EEPROM values and then displays probe B1
temperature.

Buzzer goes off

Activates or deactivates COOL mode after 5 seconds

Display of parameters

Increases value

Activates or deactivates HEAT mode after 5 seconds

Display of parameters

Decreases value

FACTORY parameters appear after 5 seconds (password)

Starts forced defrost after 5 seconds, if allowed by temperature
conditions

Resets alarms after 5 seconds

Clears counter

Installs default parameters and values

Copies key on controller EEPROM

31

Operation of set points

Operation of cooling cycle

First compressor

Differential/2

(r2/2)

Second compressor

COOL set point (r1)+Differential (r2)COOL set point (r1)

Operation of heating cycle

Differential/2

(r4/2)

Second compressor

First compressor

COOL set point (r3)+Differential (r4)COOL set point (r1)

Parameter Description

Unit

r1 (DIRECT) COOL set point °C 12 12
r2 (DIRECT) COOL cycle differential °K 3 3
r3 (DIRECT) HEAT set point °C 40 40
r4 (DIRECT) HEAT cycle differential °K 3 3

rA (USER) Minimum COOL set point °C 8 8
rb (USER) Maximum COOL set point °C 30 30
rC (USER) Minimum HEAT set point °C 15 15
rd (USER) Maximum HEAT set point °C 50 50

/d (USER) Degrees C or F (0 = °C; 1 = °F) 0 0

Factory value

YLCC-H YLCC

Compressors

Parameter Description

Unit

c1 (USER) Minimum run time sec. 5 5
c2 (USER) Minimum off time 10 secs. 1 1
c3 (USER) Time between two starts of the same compressor 10 secs. 36 36
c4 (USER) Time between two starts of the two compressors sec. 10 10
c5 (USER) Time between off of the two compressors sec. 3 3
c6 (USER) Start timing sec. 10 10
c7 (USER) Compressor start delay regarding the pump sec. 20 20
c8 (USER) Pump delay regarding the compressor min. 20 20

c9 (DIRECT) Compressor 1 operating hours counter hours

cA (DIRECT) Compressor 2 operating hours counter hours

cb (USER) Operating hours for maintenance alarm hours

cC (DIRECT) Pump operating hours counter hours

r5 (FACTORY) Compressor rotation (0 = yes; 1 = 0) 0 0

32

Factory value

YLCC-H YLCC

Defrost cycle

Timer reset

Start defrost End defrost

Minimum time
start defrost (d5) Duration defrost

Temperature end
defrost (d4)

Temperature start
defrost (d3)

UnitParameter Description

d1 (USER) Activation defrost (0 = no; 1 = yes) 1 1
d2 (USER) Defrost by time/temp. (0 = time; 1 = temp.) 1 1
d3 (USER) Temperature start defrost °C -1 -1
d4 (USER) Temperature end defrost °C 5 5
d5 (USER) Minimum time for defrost start sec. 60 60
d6 (USER) Minimum duration defrost sec. 0 0
d7 (USER) Maximum duration defrost min. 10 10
d8 (USER) Time between two defrost cycles min. 30 30
d9 (USER) Delay between defrost of both circuits min. 10 10

db (USER) Backup heater during defrost (0 = no; 1 = yes) 0 0

dc (USER) For compressor before defrost (between 1 and 3) (a) min. 0 0

dd (USER) For compressor after defrost (between 1 and 3) (b) min. 0 0

(a) When defrost conditions are reached, and before starting

the cycle, the compressor turns off during the dc interval
(can be set to between 1 and 3 minutes). Once the com­pressor is off, the 4-way valve inverts its position during

outdoor exchanger. During this process, the controller does
not consider compressor programmed timings and, there­fore, the compressor goes on and off intermediately.
If dd = 0, this procedure is deactivated.

YLCC-H YLCC

the dc/2 interval to allow pressure balancing. During this
process, the controller does not consider compressor pro­grammed timings and, therefore, the compressor goes on
and off intermediately.

Pump operation

Three operating modes of the water pump can be selected in
accordance with the value give to the H5 parameter.

If dc = 0, this procedure is deactivated.

(b) When the defrost cycle is over, the compressor turns off

during the dd interval (can be set to between 1 and 3
minutes). Once the compressor is off, the 4-way valve
inverts its position during the dd/2 interval to allow pres­sure balancing and elimination of drops of water in the

Parameter H5 Pump operating mode

0 Pump absent

(1) In permanent operation

2 In operation under call from the controller

(demand for cool or heat)

Factory value

33

- In “pump absent” mode, the flow switch alarm is deacti­vated.

- The water pump will start 20 seconds before compressor
(c7) starts.

- When the compressor turns off, the pump will continue op­erating for 20 minutes more (c8).

Cooling cycle (compressor on)

Maximum speed

Minimum speed

- To see pump operating hours, see DIRECT cC parameter.

Single-phase axial or centrifugal fans operation
with speed control

Speed selection is carried out in both the cooling as well as
the heating cycles.

Fan off

Cooling cycle cut-off

(F9)

Cooling cycle minimum
speed temperature (F5)

Condensing temperature

Cooling cycle maximum
speed temperature (F6)

Heating cycle (compressor on)

Maximum speed

Minimum speed

Evaporating

Fan off

Heating cycle maximum
speed temperature (F8)

Parameter Description

F1 (FACTORY) Fan presence (0 = no, 1 = yes) 1 0

Heating cycle minimum
speed temperature (F7)

Heating cycle cut-off

(FA)

Unit

temperature

Factory value

YLCC-H YLCC

F2 (USER) Operating mode. (0 = always ON; 1 = parallel with

F3 (FACTORY) Minimum voltage threshold at triac (a) steps 0 0
F4 (FACTORY) Maximum voltage threshold at triac (b) steps 166 166
F5 (USER) Cooling cycle minimum speed temp. °C 35 35
F6 (USER) Cooling cycle minimum speed temp. °C 45 45
F7 (USER) Heating cycle minimum speed temp. °C 35 35
F8 (USER) Heating cycle maximum speed temp. °C 30 30
F9 (USER) Cooling cycle fan off temperature °C 20 20
FA (USER) Heating cycle fan off temperature °C 40 40
Fb (USER) Fan start time 4 secs. 0 0

34

comp.; 2 = parallel with comp. Reg. ON/OFF; 3 = parallel
with comp. Speed control).

11

(a) Units with single-phase axial or centrifugal fans with speed

control. Phase cut-off modules by triac are used. The val­ues indicated do not match the real voltage applied, but
rather a variable internal voltage of the controller.
Units with three-phase centrifugal fans without speed con­trol. Set parameter F3 = 0 and close jumpers P1 and P6
of the base and expansion plates.

(b) Units with single-phase axial or centrifugal fans with speed

control. Phase cut-off modules by triac are used. The val­ues indicated do not match the real voltage applied, but
rather a variable internal voltage of the controller.
Units with three-phase centrifugal fans without speed con­trol. Set parameter F4 = 166 and close jumpers P1 and
P6 of the base and expansion plates.

Alarms and messages

Message Cause Reset Terminals Base plate yellow LED Alarm buzzer and relay

E1 Probe B1 Automatic B1 - GND

E2 Probe B2 Automatic B2 - GND

E3 Probe B3 Automatic B3 - GND

E4 Probe B4 Automatic B4 - GND

E5 Probe B5 Automatic B5 - GND

EE EEPROM failure Automatic

FL Flow switch Automatic ID5 - IDCOM

H1 High pressure circuit 1 Manual ID1 - IDCOM

L1 Low pressure circuit 1 Manual ID2 - IDCOM

C1 Manual ID3 - IDCOM

F1 Manual ID4 - IDCOM

A1 Antifreeze Manual

d1 Defrost circuit 1 Automatic

r1 Defrost failure circuit 1 Automatic

Compressor 1 thermal protector or
fan 1 thermal protector (YLCC)

Fan 1 thermal protector (YLCC-H)

Flashing fast
(2 flashes per sec.)

Normal flashing
(1 flash x sec.)

Flashing fast

Activated

Deactivated

Activated

DesactivatedNormal flashing

n1 Maintenance compressor 1 Manual

H2 High pressure circuit 2 Manual ID8 - IDCOM

L2 Low pressure circuit 2 Manual ID9 - IDCOM

C2 Manual ID10 - IDCOM

F2 Manual ID11 - IDCOM

A2 Antifreeze 2 Manual

d2 Defrost circuit 2 Automatic

r2 Defrost failure circuit 2 Automatic

n2 Maintenance compressor 2 Manual

Cn Communication error Automatic

Compressor 2 thermal protector or
fan 2 thermal protector (YLCC)

Fan 2 thermal protector (YLCC-H)

Flashing fast

Cn flashing

Activated

DeactivatedFlashing fast

35

Yellow and green LEDs on base plate

The yellow LED indicates unit operation. Under normal condi­tions, it flashes once per second. In the case of an alarm, it
flashes twice per second. When it goes off, no voltage is reach­ing the base plate.
The green LED indicates communication with the remote ter­minal. In the case of a communication failure, this LED re­mains off (failures are normally due to bad contact between
the telephone connector and one of the female bases on the
main board or the terminal.

Probe calibration

If necessary, the probes can be calibrated by using the fol­lowing parameters.

Parameter

/6

/7

/8

/9

/A

Description Unit
Calibration probe B1 (entering water

temperature)
Calibration probe B2 (discharge water
temperature exchanger 1)
Calibration probe B3 (refrigerant
temperature circuit 1)
Calibration probe B4 (discharge water
temperature exchanger 2)
Calibration probe B5 (refrigerant
temperature circuit 2)

0.1°C/F

0.1°C/F

0.1°C/F

0.1°C/F

0.1°C/F

Remote ON/OFF

A remote ON/OFF digital intake can be connected between
terminals ID6-IDCOM of the base plate. To activate this in­take, give value 1 to parameter H7 (H7 = 1). Said digital in­take has priority over the one originating at the keyboard.
When this digital intake is open, the unit remains in the OFF
mode.

Remote COOL/HEAT

A remote COOL/HEAT digital intake can be connected be­tween terminals ID7-IDCOM of the base plate. To activate

this intake, give value 1 to parameter H6 (H6 = 1). When this
function is activated, the COOL/HEAT digital signal overrides
the one originating at the keyboard and the unit remains in
the COOL mode.

Protection of “DIRECT” parameters

Parameter H9 allows deactivating access to the DIRECT and
USER parameters from the local and remote terminals. In
any case, parameter values can be displayed but not changed.
The following functions will also be deactivated: cool/heat
selection, forced defrost and clearing of hour counters. To
select the coo, heat, off and on functions, the remote digital
cool/heat and remote on/off intakes must be used.

Parameter H9 Remote terminal Local terminal

0 Activated Deactivated
1 Activated Activated
2 Deactivated Deactivated
3 Deactivated Activated

Buzzer configuration

Parameter P4 allows selecting three buzzer operating modes.

Parameter P4 Buzzer function

0 Always disconnected

Between 1 & 14

15

Disconnects once this value in minutes is over

Operating until the cause of the alarm disappears

Operation

Cooling cycle YLCC

The heat exchanger for water acts as an evaporator unit, while
the finned coil acts as a condenser unit. The summer cycle
diagram indicates the circuit followed by the refrigerant.

Cooling cycle diagram for YLCC

CONDENSER

The units are made up of two circuits, with common water connections.

36

CENTRIFUGAL
FAN

SCROLL
COMPRESSOR

FILTER-DRYER

SIGHT
GLASS

EXPANSION
VALVE

EVAPORATOR

Heat exchange takes place between the liquid (water or water
and glycol) and the refrigerant in the coaxial heat exchanger.
The water is cooled and the evaporates refrigerant. Then the
Scroll type compressor compresses the refrigerant (gas) until
the condensing pressure is reached, which then goes on to
the air cooled condensing unit. In the air cooled condensing
unit, heat exchange takes place between the air and the re­frigerant. The air is heated and removed from the chiller (heat
rejection). The refrigerant is condensed and subcooled. Then
the refrigerant (liquid) goes on to the expansion valve where it
is expanded down to the evaporating pressure, and then goes
on to evaporating unit to begin a new cooling cycle.

Cooling cycle YLCC-H

The 4-way valve is not activated. Heat exchange takes place
between the liquid (water or water and glycol) and the refriger­ant in the coaxial heat exchanger. The water is cooled and the
refrigerant evaporates. Then the Scroll type compressor com­presses the refrigerant (gas) until the condensing pressure is
reached, which then goes on to the air cooled condensing

Summer cycle diagram for YLCC-H

unit. In the air cooled condensing unit, heat exchange takes
place between the air and the refrigerant. The air is heated
and removed from the chiller (heat rejection). The refrigerant
is condensed and subcooled. Then the refrigerant (liquid) goes
on to the expansion valve where it is expanded down to the
evaporating pressure is reached, and then goes on to evapo­rating unit to begin a new cooling cycle.

Heating cycle YLCC-H

In heating mode this cycle is inverted. The 4-way valve is
activated. The condensing unit becomes the evaporating unit,
and the evaporating unit becomes the condensing unit. The
water is heated in the coaxial heat exchanger.

Defrost

When the probe detects a temperature below 0.5° C (factory­set freezing point), this cycle is inverted. The defrost cycle is
activated for a maximum of 4 minutes. If, during this period of
time, the temperature rises to over +6° C, the defrost cycle is
deactivated.

EVAPORATOR

CONDENSER

Winter cycle diagram for YLCC-H

CONDENSER

CENTRIFUGAL
FAN

COMPRESSOR

FILTER-DRYER

CENTRIFUGAL
FAN

COMPRESSOR

SIGHT
GLASS

4-WAY VALVE

4-WAY VALVE

SUCTION
ACCUMULATOR

REVERSIBLE
EXPANSION
VALVE

SUCTION
ACCUMULATOR

LIQUID
ACCUMULATOR

EVAPORATOR

FILTER-DRYER

The units are made up of two circuits, with common water connections.

SIGHT
GLASS

REVERSIBLE
EXPANSION
VALVE

LIQUID
ACCUMULATOR

37

General dimensions mm.

YLCC and YLCC-H 42

MINIMUM
CLEARANCE
1000

1640

28

389

37

1045

141

1986148 106

102

942 942

2018116 106

DRAIN Ø EXT. 28

LENGTH 30mm ON

BOTH SIDES

MINIMUM
CLEARANCE
1000

MINIMUM
CLEARANCE
1000

451

774

323

23

44

FEMALE THREAD 2"G

MINIMUM
CLEARANCE
600

2240

HYDRAULIC

CONNECTIONS

91

669

100

WATER OUTLET
WATER INTAKE

MINIMUM

CLEARANCE 500

ELECTRICAL CONNECTION

Ø22 (3), Ø28, 6 (1), Ø38 (1)

91

50(x3)

65

483

YLCC and YLCC-H 62

MINIMUM
CLEARANCE

1000

148 106

942 942

1640

28

389

37

1045

141

1986

102

2018116 106

DRAIN Ø EXT. 28

LENGTH 30mm ON

BOTH SIDES

MINIMUM
CLEARANCE

1000

MINIMUM
CLEARANCE

1000

705

224

23

41

FEMALE THREAD

MINIMUM
CLEARANCE

600

2240

HYDRAULIC

CONNECTIONS

91

669

100

WATER OUTLET
WATER INTAKE

2"G

MINIMUM

CLEARANCE

500

ELECTRICAL CONNECTION

Ø22 (3), Ø28, 6 (1), Ø38 (1)

91

50x(3)

65

489

38

929

General dimensions mm.

YLCC and YLCC-H 82 & 102

MINIMUM
CLEARANCE

1000

146 108

28

2637

102

1266 1268

MINIMUM
CLEARANCE

1000

HYDRAULIC CONNECTIONS

FEMALE THREAD

20

91

2 1/2" G.

MINIMUM

CLEARANCE

500

ELECTRICAL CONNECTION

Ø22 (3), Ø28, 6 (1), Ø38 (1)

91

460

37

1864

1199

140

2670115 106

YLCC and YLCC-H 122 & 152

MINIMUM
CLEARANCE

1000

152 108

27

2940

102

1401 1437

DRAIN Ø EXT. 28

LENGTH 30mm ON

BOTH SIDES

MINIMUM
CLEARANCE

1000

675

1000

MINIMUM
CLEARANCE

1000

325

23

42

MINIMUM
CLEARANCE
600

2891

20

474

255

WATER OUTLET
WATER INTAKE

HYDRAULIC

CONNECTIONS

FEMALE THREAD

91

3"G

MINIMUM

CLEARANCE

65

483 50(x3)

500

ELECTRICAL CONNECTION

Ø22 (3), Ø28, 6 (1), Ø38 (1)

91

1864

460

40

1193

144

2982113 105

DRAIN Ø EXT. 28

LENGTH 30mm ON

BOTH SIDES

MINIMUM
CLEARANCE

1000

680

1300

620

MINIMUM
CLEARANCE
600

23

40

3200

475

255

WATER OUTLET
WATER INTAKE

50(x3)

65

483

39

General dimensions mm.

YLCC and YLCC-H 42V

MINIMUM
CLEARANCE

1000

1640

454

1045

141

2018116 106

DESAGÜE Ø EXT. 28

LONGUITUD 30mm

(AMBOS LADOS)

MINIMUM
CLEARANCE

1000

MINIMUM
CLEARANCE

1000

22

368396620396460

451

34446

774

323

MINIMUM
CLEARANCE
600

23

44

2240

CONNECTIONS

FEMALE THREAD

91

669100

WATER OUTLET
WATER INTAKE

HYDRAULIC

2"G

ELECTRICAL CONNECTION

Ø22 (3), Ø28, 6 (1), Ø38 (1)

91

50(x3)

65

483

YLCC and YLCC-H 62V

MINIMUM
CLEARANCE

1000

454

1640

1045

141

2018116 106

DRAIN Ø EXT. 28

LENGTH 30mm ON

BOTH SIDES

MINIMUM
CLEARANCE

1000

MINIMUM
CLEARANCE

1000

22

330472544472422

705

224

MINIMUM
CLEARANCE
600

23

41

2240

HYDRAULIC

CONNECTIONS

FEMALE THREAD 2"G

91

669100

WATER OUTLET
WATER INTAKE

ELECTRICAL CONNECTION

Ø22 (3), Ø28, 6 (1), Ø38 (1)

91

50x(3)

65

489

40

407136

929

General dimensions mm.

YLCC and YLCC-H 82V

MINIMUM
CLEARANCE

1000

525

1864

1199

140

YLCC and YLCC-H 102V

2670115 106

DRAIN Ø EXT. 28

LENGTH 30mm ON

BOTH SIDES

MINIMUM
CLEARANCE

1000

MINIMUM
CLEARANCE

1000

22

613473709473623

675

407136

1000

325

MINIMUM
CLEARANCE
600

23

42

2891

HYDRAULIC CONNECTIONS

FEMALE THREAD

91

474255

WATER OUTLET
WATER INTAKE

ELECTRICAL CONNECTION

2 1/2"G

Ø22 (3), Ø28, 6 (1), Ø38 (1)

91

50(x3)

65

483

MINIMUM
CLEARANCE

1000

1864

525

1199

140

2670115 106

DRAIN Ø EXT. 28

LENGTH 30mm ON

BOTH SIDES

MINIMUM
CLEARANCE

1000

MINIMUM
CLEARANCE

1000

22

494558776558505

675

481136

1000

325

MINIMUM
CLEARANCE
600

23

42

2891

HYDRAULIC CONNECTIONS

FEMALE THREAD

91

474255

WATER OUTLET
WATER INTAKE

2 1/2"G

ELECTRICAL CONNECTION

Ø22 (3), Ø28, 6 (1), Ø38 (1)

91

50(x3)

65

483

41

General dimensions mm.

YLCC and YLCC-H 122V & 152V

MINIMUM
CLEARANCE

1000

1864

527

1193

144

2982113 105

DRAIN Ø EXT. 28

LENGTH 30mm ON

BOTH SIDES

MINIMUM
CLEARANCE

1000

MINIMUM
CLEARANCE

1000

22

571558947558566

211 483

680

1300

620

MINIMUM
CLEARANCE
600

23

40

3200

HYDRAULIC

CONNECTIONS

FEMALE THREAD

91

475255

WATER OUTLET
WATER INTAKE

3"G

ELECTRICAL CONNECTION

Ø22 (3), Ø28, 6 (1), Ø38 (1)

91

50(x3)

65

483

42

Wiring diagram, YLCC-H - 42 and 62, 400.3.50 (1 of 2)

42

3

1

(04)

F4

Reg. (A)

F3

Reg. (A)

F2

(A)

F1

(A)

a

(29)

KM2

22

21

(20)

KM1

21

22

L

X3/...

3

4

1

4

7

4

7

20

32

2

9

A

F

4

21

13

R2

R1

22

14

35

135

246246

246

1

b

SUMP HEATER 2

SUMP HEATER 1

N

X3/...

46
2

400.3.50

I-2284-1b (1 of 2)

YLCC-H-42 and 62

E4

M

3 ~

M4

FAN 2

(02) (03)

(01)

UNIT

YLCC-H-42 20

YLCC-H-62 32

400V, 3 ~, 50 Hz, N,

F4

135

SEE WIRING DATA TABLE FOR DIMENSIONING OF

AUTOMATIC SWITCH AND POWER SUPPLY LINE SECTION

135

F3

246

F2

E0

X1/...

PE

135

L1 L2 L3 N

Q1

246

F1

(28)

KM4

22

21

14

13

35

46

1

KM3

35
1

2

(19)

46
2

246

E3

M

M3

3 ~

FAN 1

E2

M2

M

3 ~

COMPRESSOR 2

(29)

KM2

E1

35
1

46
2

M1

M

3 ~

COMPRESSOR 1

(20)

KM1

43

Wiring diagram, YLCC-H - 42 and 62, 400.3.50 (2 of 2)

LIQUID PROBE 2

22 23 24 25 26 27 28 29 30

LIQUID PROBE 1

17 18 19 20 21

15 16

13 14

12

LWT
PROBE 2

LWT
PROBE 1

EWT
PROBE

B5

B4

B3

B2

B1

A7

REMOTE

TERMINAL

B5

GND

B4

GND

B3

GND

B2

GND

B1

GND

GGO

J6

321

321

321

321

321

J1 J2 J1

A2

ELECTRONIC BOARD

P1

J2

A1

J8 J9 J10 J11 J12 J13 J4 J5 J6 J7

ELECTRONIC BOARD

B5

B4

1 - 2 NTC

B3

B2

B1

J3

P6

NC

C
NO

C

NO

C
NO

GND Y2

ID10 ID11

ID9

ID8

NC
C

NO

C

NO

NC

C
NO

C

NO
C

NO

Y1

GND

IDCOM ID1 ID2 ID3 ID4 ID5 ID6 ID7

24

3

4

25

23

22

21

X2...

3 4

6 7

14

3

4

2

1

5

15

13

12

11

X2...

A4

A3

MODE

ON/OFF

13

F4

1

HP2

MODE

ON/OFF

S/PF5

13

F3

1

HP1

1

2

RV2

A2

A1

KM2

21

65

14

(04)

2

1

P

LP2

2

P

1

RV1

21

65

A2

A1

KM4

2

A2

A1

KM1

A2

A1

KM3

C/H

14

(03)

2

1

P

LP1

2

P

4-WAY VALVE 2

(02)

)
3

(

65

21

34

21 22

)
4

(0

21

65

34

(01)

21

65

34

)
3

(0

21

65

34

21 22

)
2

(

21 22

21 22

MOTOR GUARD
FAN 2

LOW PRESSURE
SWITCH 2

HIGH PRESSURE
SWITCH 2

ALARM

WATER PUMP

4-WAY VALVE 1

COOL/HEAT MODE

ON/OFF

FLOW SWITCH

MOTOR GUARD
FAN 1

LOW PRESSURE
SWITCH 1

HIGH PRESSURE
SWITCH 1

)
2

of

2

and 62

(

400.3.50

284-2b
2
I-

YLCC-H-42

44

24V

2

F10

1

4A

10 11

4

X2..

R

a

0V

T1

230V

100 VA

0V

b

B

X2..

Wiring diagram, YLCC-H - 82, 400.3.50 (1 of 2)

42

3

1

(04)

F4

Reg. (A)

F3

Reg. (A)

F2

(A)

F1

(A)

a

(29)

KM2

22

21

R2

b

CRANKCASE
HEATER 2

400.3.50

YLCC-H-82

I-2360-1a (1 of 2)

(20)

KM1

21

22

L

X3/...

3

4

1

9

2

9

A

F

4

R1

X3/...

N

CRANKCASE
HEATER 1

9

22

21

32

135

246246

14

13

246

5
3
1

46
2

E4

M

3 ~

M4

FAN 2

(02) (03)

(01)

UNIT

YLCC-H-82 32

SEE WIRING DATA TABLE FOR DIMENSIONING OF

E0

400V, 3 ~, 50 Hz, N,

F4

22

21

14

13

135

AUTOMATIC SWITCH AND POWER SUPPLY LINE SECTION

F3

135

246

246

F2

X1/...

PE

135

L1 L2 L3 N

Q1

246

F1

KM4

5
3
1

KM3

35
1

KM2

35
1

KM1

(28)

46
2

(19)

46
2

(29)

46
2

(20)

E3

M

M3

3 ~

FAN 1

E2

M2

M

3 ~

COMPRESSOR 2

E1

M1

M

3 ~

COMPRESSOR 1

45

Wiring diagram, YLCC-H - 82, 400.3.50 (2 of 2)

30

LIQUID PROBE 2

LIQUID PROBE 1

19 20 21 22 23 24 25 26 27 28 29

15 16 17 18

13 14

12

LWT
PROBE 2

LWT
PROBE 1

EWT
PROBE

B5

B4

B3

B2

B1

A7

REMOTE

TERMINAL

GND B5

GND B4

GND B3

GND B1 GND B2

GGO

J6

321

321

321

321

321

J1 J2 J1

A2

ELECTRONIC BOARD

P1

J2

A1

J8 J9 J10 J11 J12 J13 J4 J5 J6 J7

ELECTRONIC BOARD

B5

B4

1 - 2 NTC

B3

B2

B1

J3

P6

NC

C
NO

C

NO

C
NO

GND Y2

ID10 ID11

ID9

ID8

NC
C

NO

C

NO

NC

C
NO

C

NO
C

NO

GND Y1

IDCOM ID1 ID2 ID3 ID4 ID5 ID6 ID7

24

43

23

22

21

X2...

3 4

6 7

14

43

2

1

5

15 25

13

12

11

X2...

A4

A3

MODE

ON/OFF

13

F4

1

HP2

MODE

ON/OFF

S/PF5

13

F3

1

HP1

1

2

RV2

A2

A1

KM2

216

A2

5

14

(04)

1

LP2

2

P

216

5

A1

KM4

M2

M1

2

1

2

P

1

2

RV1

A2

A1

KM1

A2

A1

KM3

C/H

14

(03)

2

1

P

LP1

2

P

M2

M1

2

1

4-WAY VALVE 2

(02)

)
3

(

65

21

34

21 22

)
4

(0

21

65

34

(01)

21

65

34

)
3

(0

21

65

34

21 22

)
2

(

21 22

21 22

MOTOR GUARD
FAN 2

COMPRESSOR
PROTECTION 2

LOW PRESSURE
SWITCH 2

HIGH PRESSURE
SWITCH 2

ALARM

WATER PUMP

4-WAY VALVE 1

COOL/HEAT MODE

ON/OFF

FLOW SWITCH

MOTOR GUARD
FAN 1

COMPRESSOR
PROTECTION 1

LOW PRESSURE
SWITCH 1

HIGH PRESSURE
SWITCH 1

)
2

of

82

2
(

YLCC-H­2360-2a
I-

400.3.50

46

24V

T1

230V

0V

100 VA

0V

b

B

X2..

2

F10

1

4A

10 11

4

X2..

R

a

Wiring diagram, YLCC-H - 102, 400.3.50 (1 of 2)

a

M1

M2

(26)

L

N

42

3

1

L

X3/...

A6

S2

S1

M1

M2

(13)

L

N

A5

S2

S1

KM2

22

21

(20)

KM1

21

22

R2

R1

b

MODE COMPRESSOR 2

MODE COMPRESSOR 1

CRANKCASE
HEATER 2

CRANKCASE
HEATER 1

N

X3/...

400.3.50

YLCC-H-102

I-2285-1b (1 of 2)

(04)

(02) (03)

(01)

F4

Reg. (A)

F3

Reg. (A)

F2

(A)

F1

(A)

UNIT

9

9

50

YLCC-H-102 50

E0

400V, 3 ~, 50 Hz, N,

3

4

1

2

9

A

F

4

135

21

13

246

F4

21

13

135

SEE WIRING DATA TABLE FOR DIMENSIONING OF

AUTOMATIC SWITCH AND POWER SUPPLY LINE SECTION

246

F3

135

246

X1/...

135

F2

246

F1

PE

L1 L2 L3 N

Q1

22

14

246

22

14

246

5
3
1

KM4

5
3
1

KM3

35
1

KM2

35
1

KM1

46
2

(28)

46
2

(19)

46
2

(29)

46
2

(20)

E4

M

3 ~

M4

FAN 2

E3

M

M3

3 ~

M

3 ~

FAN 1

E2

M2

COMPRESSOR 2

E1

M1

M

3 ~

COMPRESSOR 1

47

Wiring diagram, YLCC-H - 102, 400.3.50 (2 of 2)

30

LIQUID PROBE 2

LIQUID PROBE 1

19 20 21 22 23 24 25 26 27 28 29

15 16 17 18

12 13 14

LWT
PROBE 2

LWT
PROBE 1

EWT
PROBE

B5

B4

B3

B2

B1

A7

REMOTE

TERMINAL

B5

GND

B4

GND

B3

GND

B2

GND

B1

GND

GGO

J6

321

321

321

321

321

J1 J2 J1

A2

ELECTRONIC BOARD

P1

J2

A1

J8 J9 J10 J11 J12 J13 J4 J5 J6 J7

ELECTRONIC BOARD

B5

B4

1 - 2 NTC

B3

B2

B1

J3

P6

NC

C
NO

C

NO

C
NO

GND Y2

ID9 ID10 ID11

ID8

NC
C

NO

C

NO

NC

C
NO

C

NO
C

NO

GND Y1

IDCOM ID1 ID2 ID3 ID4 ID5 ID6 ID7

24

43

23

22

21

X2...

3 4

6 7

14

43

2

1

5

15 25

13

12

11

X2...

A4

A3

MODE

ON/OFF

13

F4

1

HP2

MODE

ON/OFF

S/PF5

13

F3

1

HP1

1

2

RV2

A2

A1

KM2

21

65

14

(04)

2

1

P

LP2

2

P

1

RV1

21

65

A2

A1

KM4

M1

M2

A6

(4)

2

A2

A1

KM1

A2

A1

KM3

C/H

14

(03)

1

LP1

2

P

M1

M2

A5

(3)

2

P

4-WAY VALVE 2

(02)

(3)

21

65

34

21 22

)

4

(0

21

65

34

(01)

21

65

34

(03)

21

65

34

21 22

(2)

21 22

21 22

MOTOR GUARD
FAN 2

COMPRESSOR
PROTECTION 2

LOW PRESSURE
SWITCH 2

HIGH PRESSURE
SWITCH 2

ALARM

WATER PUMP

4-WAY VALVE 1

COOL/HEAT MODE

ON/OFF

FLOW SWITCH

MOTOR GUARD
FAN 1

COMPRESSOR
PROTECTION 1

LOW PRESSURE
SWITCH 1

HIGH PRESSURE
SWITCH 1

2)
of

b (2

85-2

I-22

400.3.50

YLCC-H-102

48

24V

2

F10

1

4A

10 11

4

X2..

R

a

0V

T1

230V

150 VA

0V

b

B

X2..

Wiring diagram, YLCC-H - 122, 400.3.50 (1 of 2)

35
1

b

N

X3/...

46
2

(27)

CRANKCASE
HEATER 4

CRANKCASE
HEATER 3

CRANKCASE
HEATER 2

CRANKCASE
HEATER 1

400.3.50

I-2373-1a

YLCC-H-122

E6

M

3 ~

M6

FAN 2

a

(29)

135

KM4

22

21

(28)

KM3

21

22

(19)

KM2

22

21

(18)

KM1

21

22

21

13

246246

F6

21

R4

R3

R2

R1

22

14

246

KM6

22

42

3

1

L

X3/...

3

4

1

2

9

F6

Reg. (A)

F5

Reg. (A)

(A)

F3/F4

(A)

F1/F2

13

13

32

A

F

4

(05) (06)

(04)

(02) (03)

(01)

UNIT

YLCC-H-122 32

E0

400V, 3 ~, 50 Hz, N,

X1/...

PE

L1 L2 L3 N

Q1

135

135

135

135

135

14

13

35

46

1

KM5

35
1

KM4

35
1

2

(17)

46
2

(29)

46
2

246

F5

246

F4

246

E5

M

M5

3 ~

FAN 1

E4

M4

M

3 ~

COMPRESSOR 4

E3

M3

M

3 ~

COMPRESSOR 3

(28)

F3

246

KM3

35
1

46
2

E2

M2

M

3 ~

COMPRESSOR 2

(19)

F2

246

F1

KM2

35
1

KM1

46
2

(18)

E1

M

M1

3 ~

COMPRESSOR 1

49

Wiring diagram, YLCC-H - 122, 400.3.50 (2 of 2)

31

22 23 24 25 26 27 28 29 30

19 20 21

15 16 17 18

12 13 14

LIQUID PROBE 2

LWT
PROBE 2

LIQUID PROBE 1

LWT
PROBE 1

EWT
PROBE

KM6

KM6

1

LP2

C/H

1

LP1

22

A2

A1

KRV2

2

1

RV2

A2

A1

KM4

A2

A1

KM3

A2

A1

KM6

2

1

P

LP2-2

0,5 bar

2

P

2 bar

KM5

22

A2

A1

KRV1

2

1

RV1

A2

A1

KM2

A2

A1

KM1

A2

A1

KM5

2

1

P

LP1-2

0,5 bar

2

P

2 bar

131421

NO7

C6/7

C8/9

NO9

C6/7

NO6

Y2

GND

ID7

ID9

ID8

ID6

C5

NO5

C3/4

NO3

NO2

C3/4

NO4

C1/2

NO1

Y1

GND

ID5

ID1

ID2

ID4

ID3

GND

24

43

25

22

21

2

4

ALARM

3

7614

WATER
PUMP

43

1

5

15

12

11

X2/...

A4

11

A3

11

MODE

ON/OFF

13

F6

12 14

MODE

ON/OFF

13

F5

12 14

KRV2

1

HP2

S/P

F5

KRV1

1

HP1

14

(06)

(31)

2

P

14

(05)

(21)

2

P

216

5

16

KM5

131421

216

5

16

7

B7

BB7

B6

B6B

612 611

GND B6 GND B7

V+

Bn

DI/AI/P

GND

A2

T+

tLAN

GND

X2/...

tLAN/485

BB3

BB1 BB2

GGO

B3

GND

GND B2

GND B1

714

611

613 612

J2/2

R B

B3

B2

B1

X2/... X2/...

A1

KEY/SPV

V+

GND B4

J2/1 J2/1 J2/2

714

GGO

3

4

9

2

1

4

5

1

2

9

8

T-

6

T+ T+

GND GND

tLAN

12

10

8

7

J1/1

4

9

2

1

4

J2/1 J2/2 J1/2J2/2

5

10

8

1

J2/1

2

9

6

)
25

(

11

14

12

4-WAY VALVE 2

)
3

)

(0

3

(

21

65

34

21 22

)
3

(0

)
1

(3

65

21

34

21 22

13 14

MOTOR GUARD
FAN 2

LOW PRESSURE
SWITCH 2-2

LOW PRESSURE
SWITCH 2

HIGH PRESSURE
SWITCH 2

COOL/HEAT MODE

)
13

(

11

14

12

4-WAY VALVE 1

)
1

)

(0

1

(

21

65

34

21 22

)
5

(0

)
2

(2

21

65

34

21 22

13 14

ON/OFF

FLOW SWITCH

MOTOR GUARD
FAN 1

LOW PRESSURE
SWITCH 1-2

LOW PRESSURE
SWITCH 1

HIGH PRESSURE
SWITCH 1

)
4

(0

21

34

(31)

)
2

(0

21

34

)
2

(2

373-2a

400.3.50

I-2

YLCC-H-122

)
4

(

65

21 22

)
2

(

65

21 22

50

0V

1

2

R

10 11

4

X2/...

6A

F10

a

24V

T1

150 VA

0V

230V

b

B

X2/...

Wiring diagram, YLCC-H - 152, 400.3.50 (1 of 2)

35
1

X3/...

46
2

(27)

b

CRANKCASE
HEATER 4

CRANKCASE
HEATER 3

CRANKCASE
HEATER 2

CRANKCASE
HEATER 1

N

400.3.50

I-2374-1a

YLCC-H-152

E6

M

3 ~

M6

FAN 2

a

(29)

42

3

1

L

X3/...

3

4

1

2

F6

Reg. (A)

F5

Reg. (A)

(A)

F3/F4

(A)

F1/F2

16

16

40

9

F

KM4

22

21

(28)

KM3

21

22

(19)

KM2

22

21

(18)

KM1

21

22

A

4

21

13

135

246246

F6

21

R4

R3

R2

R1

22

14

246

KM6

22

(05) (06)

(04)

(02) (03)

(01)

UNIT

YLCC-H-152 40

E0

400V, 3 ~, 50 Hz, N,

X1/...

PE

L1 L2 L3 N

Q1

135

135

135

135

135

14

13

35

46

1

KM5

35
1

2

(17)

46
2

246

F5

246

E5

M

M5

3 ~

FAN 1

E4

M4

M

3 ~

COMPRESSOR 4

(29)

F4

246

KM4

35
1

46
2

E3

M3

M

3 ~

COMPRESSOR 3

(28)

F3

246

KM3

35
1

46
2

E2

M2

M

3 ~

COMPRESSOR 2

(19)

F2

246

F1

KM2

35
1

KM1

46
2

(18)

E1

M1

M

3 ~

COMPRESSOR 1

51

Wiring diagram, YLCC-H - 152, 400.3.50 (2 of 2)

31

22 23 24 25 26 27 28 29 30

19 20 21

15 16 17 18

12 13 14

LIQUID PROBE 2

LWT
PROBE 2

LIQUID PROBE 1

LWT
PROBE-1

EWT
PROBE

B7

B6

B3

B2

B1

X2/...

R B

BB7

B6B

BB3

BB1 BB2

X2/... X2/...

GND B6 GND B7

V+

Bn

GND

T+

GND

GGO

GND B3

GND B2

GND B1

V+

GND B4

GGO

612 611

DI/AI/P

tLAN

J2/2

714

611

613 612

KEY/SPV

J2/1 J2/1 J2/2

714

A2

tLAN/485

T-

tLAN

A1

KM6

KM6

1

LP2

1

LP1

22

A2

A1

KRV2

2

1

RV2

A2

A1

KM4

A2

A1

KM3

A2

A1

KM6

M3

M4

2

2

1

1

2

1

P

LP2-2

0,5 bar

2

P

2 bar

KM5

22

A2

A1

KRV1

2

1

RV1

A2

A1

KM2

A2

A1

KM1

A2

A1

KM5

M1

M2

2

2

1

1

2

1

P

LP1-2

0,5 bar

2

P

2 bar

131421

NO7

C6/7

C8/9

NO9

C6/7

NO6

Y2

GND

ID7

ID9

ID8

ID6

C5

NO5

C3/4

NO3

NO2

C3/4

NO4

C1/2

NO1

Y1

GND

ID5

ID1

ID2

ID4

ID3

GND

24

43

25

22

21

2

4

ALARM

3

7614

WATER
PUMP

43

1

5

15

12

11

X2/...

A4

11

A3

11

MODE

ON/OFF

13

F6

12 14

1

HP2

MODE

ON/OFF

13

F5

12 14

14

(31)

KRV2

2

P

14

(21)

KRV1

1

HP1

216

5

26

(06)

C/H

KM5

131421

216

5

S/P

F5

16

(05)

2

P

7

3

4

9

2

1

4

5

1

2

9

8

6

T+ T+

GND GND

12

10

8

7

J1/1

4

9

2

1

4

J2/1 J2/2 J1/2J2/2

5

10

8

1

J2/1

2

9

6

)
25

(

11

14

12

4-WAY VALVE 2

)
3

(0

21

65

34

21 22

)
6

)

(0

31

(

21

65

34

21 22

MOTOR GUARD
FAN 2

PROTECCION
COMPRESOR 3 y 4

LOW PRESSURE
SWITCH 2-2

LOW PRESSURE
SWITCH 2

HIGH PRESSURE
SWITCH 2

COOL/HEAT MODE

)
13

(

11

14

12

4-WAY VALVE 1

)
1

)

(0

1

(

21

65

34

21 22

)
5

(0

(22)

21

65

1413 1413

34

21 22

ON/OFF

FLOW SWITCH

MOTOR GUARD
FAN 1

PROTECCION
COMPRESOR 1 y 2

LOW PRESSURE
SWITCH 1-2

LOW PRESSURE
SWITCH 1

HIGH PRESSURE
SWITCH 1

)
4

(0

21

34

)
31

(

)
2

(0

21

34

(22)

74-2a

400.3.50

I-23

YLCC-H-152

)
4

(

65

21 22

)
2

(

65

21 22

52

0V

1

2

R

10 11

4

X2/...

6A

F10

a

24V

T1

150 VA

0V

230V

b

B

X2/...

Wiring diagram, YLCC- 42 and 62, 400.3.50 (1 of 2)

42

3

1

(04)

F4

Reg. (A)

F3

Reg. (A)

F2

(A)

F1

(A)

a

(29)

KM2

22

21

(20)

KM1

21

22

L

X3/...

3

4

1

2

4

7

4

7

20

32

9

A

F

4

21

13

R2

R1

22

14

35

135

246246

246

1

b

N

X3/...

46
2

CRANKCASE
HEATER 2

CRANKCASE
HEATER 1

400.3.50

YLCC-42 and 62

I-2329-1b (1 of 2)

E4

M

3 ~

M4

FAN 2

(02) (03)

(01)

UNIT

YLCC-42 20

YLCC-62 32

400V, 3 ~, 50 Hz, N,

F4

21

13

135

F3

SEE WIRING DATA TABLE FOR DIMENSIONING OF

AUTOMATIC SWITCH AND POWER SUPPLY LINE SECTION

135

246

F2

E0

X1/...

PE

135

L1 L2 L3 N

Q1

246

F1

22

14

246

KM4

35
1

KM3

35
1

KM2

35
1

KM1

(28)

46
2

(19)

46

2

(29)

46

2

(20)

E3

M

M3

3 ~

FAN 1

E2

M2

M

3 ~

COMPRESSOR 2

E1

M1

M

3 ~

COMPRESSOR 1

53

Wiring diagram, YLCC- 42 and 62, 400.3.50 (2 of 2)

30

B5

J6

321

321

321

321

321

J1 J2 J1

A2

ELECTRONIC BOARD

A1

ELECTRONIC BOARD

B5

B4

1 - 2 NTC

B3

B2

B1

GND

B4

LWT
PROBE 2

LWT

20 21 22 23 24 25 26 27 28 29

17 18 19

15 16

13 14

12

PROBE 1

EWT
PROBE

REMOTE

TERMINAL

GND B4

GND B3

B2

B1

GND B1 GND B2

A7

GGO

NC

C
NO

C

NO

C
NO

P1

ID10 ID11 GND Y2

J2J3

ID9GND Y1

ID8

NC
C

NO

C

NO

NC

C
NO
C

NO
C

NO

J8 J9 J10 J11 J12 J13 J4 J5 J6 J7

P6

IDCOM ID1 ID2 ID3 ID4 ID5 ID6 ID7

24

23

22

21

X2...

3 4

6 7

14

2

1

5

15 25

13

12

11

X2...

)
2

(0

)
3

(

21

A2

A1

KM2

A2

A1

KM4

14

13

F4

(04)

2

1

P

LP2

2

1

P

HP2

A2

A1

KM1

A2

A1

KM3

C

S/PF5

14

13

F3

(03)

2

1

P

LP1

2

1

P

HP1

65

34

)
4

(0

65

21

34

MOTOR GUARD
FAN 2

LOW PRESSURE
SWITCH 2

HIGH PRESSURE
SWITCH 2

ALARM

WATER PUMP

(01)

21

65

34

)
3

(0

21

65

34

COOL MODE

ON/OFF

FLOW SWITCH

MOTOR GUARD
FAN 1

LOW PRESSURE
SWITCH 1

HIGH PRESSURE
SWITCH 1

)
2

of

2

21 22

(

und 62

400.3.50

2329-2b

YLCC-42

I-

21 22

)
2

(

21 22

21 22

54

24V

T1

230V

0V

100 VA

0V

b

B

X2..

2

F10

1

4A

10 11

4

X2..

R

a

Wiring diagram, YLCC- 82, 400.3.50 (1 of 2)

42

3

1

(04)

F4

Reg. (A)

F3

Reg. (A)

F2

(A)

F1

(A)

a

(29)

KM2

22

21

R2

b

CRANKCASE
HEATER 2

400.3.50

YLCC-82

I-2359-1a (1 of 2)

(20)

KM1

21

22

L

X3/...

3

4

1

2

9

9

A

F

4

R1

X3/...

N

CRANKCASE
HEATER 1

9

22

21

32

135

246246

14

13

246

5
3
1

46
2

E4

M

3 ~

M4

FAN 2

(02) (03)

(01)

UNIT

YLCC-82 32

400V, 3 ~, 50 Hz, N,

F4

21

13

135

F3

SEE WIRING DATA TABLE FOR DIMENSIONING OF

AUTOMATIC SWITCH AND POWER SUPPLY LINE SECTION

135

246

F2

E0

X1/...

PE

135

L1 L2 L3 N

Q1

246

F1

22

14

246

KM4

5
3
1

KM3

35
1

KM2

35
1

KM1

(28)

46
2

(19)

46
2

(29)

46
2

(20)

E3

M

M3

3 ~

FAN 1

E2

M2

M

3 ~

COMPRESSOR 2

E1

M1

M

3 ~

COMPRESSOR 1

55

Wiring diagram, YLCC- 82, 400.3.50 (2 of 2)

30

J6

321

321

321

321

321

J1 J2 J1

B5

B4

B3

B2

B1

A2

ELECTRONIC BOARD

A1

ELECTRONIC BOARD

1 - 2 NTC

GND B5

B4

LWT
PROBE 2

LWT
PROBE 1

EWT

19 20 21 22 23 24 25 26 27 28 29

15 16 17 18

13 14

12

PROBE

REMOTE

TERMINAL

GND B4

GND B3

B2

B1

GND B1 GND B2

A7

GGO

NC

C
NO

C

NO

C
NO

P1

ID10 ID11 GND Y2

J2J3

ID9

ID8

NC
C

NO

C

NO

NC

C
NO
C

NO
C

NO

J8 J9 J10 J11 J12 J13 J4 J5 J6 J7

GND Y1

P6

IDCOM ID1 ID2 ID3 ID4 ID5 ID6 ID7

24

23

22

21

X2...

3 4

6 7

14

2

1

5

15 25

13

12

11

X2...

(02)

)
3

(

21

65

)

A2

A1

KM2

A2

A1

14

13

F4

(04)

1

LP2

2

1

P

HP2

KM4

M2

M1

2

1

2

P

A2

A1

KM1

A2

A1

KM3

C

S/PF5

14

13

F3

1

HP1

(03)

1

P

LP1

2

P

M2

M1

2

1

2

34

)
4

(0

21

34

MOTOR GUARD
FAN 2

COMPRESSOR
PROTECTION 2

LOW PRESSURE
SWITCH 2

HIGH PRESSURE
SWITCH 2

ALARM

WATER PUMP

(01)

21

34

)
3

(0

21

34

COOL MODE

ON/OFF

FLOW SWITCH

MOTOR GUARD
FAN 1

COMPRESSOR
PROTECTION 1

LOW PRESSURE
SWITCH 1

HIGH PRESSURE
SWITCH 1

2

21 22

of

2

2

8

(

400.3.50

65

65

65

YLCC-

2359-2a
I-

21 22

)
2

(

21 22

21 22

56

24V

2

F10

1

4A

10 11

4

X2..

R

a

0V

T1

230V

100 VA

0V

b

B

X2..

Wiring diagram, YLCC- 102, 400.3.50 (1 of 2)

42

3

a

M1

M2

(26)

L

N

A6

S2

S1

M1

M2

(13)

L

N

A5

S2

S1

b

MODE
COMPRESSOR 2

MODE
COMPRESSOR 1

400.3.50

YLCC-102

I-2230-1b (1 of 2)

1

(04)

F4

Reg. (A)

F3

Reg. (A)

F2

(A)

F1

(A)

UNIT

KM2

22

21

(20)

KM1

21

22

L

X3/...

9

9

50

3

4

1

2

9

A

F

4

21

13

R2

R1

22

14

35

135

F4

246

246

1

KM4

N

X3/...

46
2

(28)

CRANKCASE
HEATER 2

CRANKCASE
HEATER 1

E4

M

3 ~

M4

FAN 2

YLCC-102 50

22

21

(02) (03)

(01)

SEE WIRING DATA TABLE FOR DIMENSIONING OF

E0

400V, 3 ~, 50 Hz, N,

14

13

135

246

246

F3

AUTOMATIC SWITCH AND POWER SUPPLY LINE SECTION

135

246

X1/...

PE

L1 L2 L3 N

Q1

135

F2

246

F1

35
1

KM3

35
1

KM2

35
1

KM1

46
2

(19)

46

2

(29)

46

2

(20)

E3

M

M3

3 ~

M

3 ~

FAN 1

E2

M2

COMPRESSOR 2

E1

M1

M

3 ~

COMPRESSOR 1

57

Wiring diagram, YLCC- 102, 400.3.50 (2 of 2)

NC

C

B5

GND

B4

LWT
PROBE 2

22 23 24 25 26 27 28 29 30

LWT
PROBE 1

EWT
PROBE

17 18 19 20 21

14 15 16

12 13

A7

REMOTE

TERMINAL

B4

GND

B3

GND

B2

GND

B1 B2

B1

GND

321

321

321

321

321

GGO

J6

B5

B4

B3

B2

B1

J1 J2 J1

A2

ELECTRONIC BOARD

P1

A1

ELECTRONIC BOARD

1 - 2 NTC

NO

C

NO

C
NO

Y2

ID10 ID11 GND

ID9GND

NC
C

NO

C

NO

NC

C
NO
C

NO
C

NO

Y1

J8 J9 J10 J11 J12 J13 J4 J5 J6 J7J2J3

P6

IDCOM ID1 ID2 ID3 ID4 ID5 ID6 ID7

24

23

22

21

X2...

3 4

6 7

14

2

1

5

15 25

13

12

11

X2...

(02)

)

3

(

65

21

)

A2

A1

KM2

A2

A1

14

13

F4

(04)

1

LP2

2

1

P

HP2

KM4

M1

M2

A6

(4)

2

P

A2

A1

KM1

A2

A1

KM3

C

34

)

4

(0

21

65

34

MOTOR GUARD
FAN 2

COMPRESSOR
PROTECTION 2

LOW PRESSURE
SWITCH 2

HIGH PRESSURE
SWITCH 2

ALARM

WATER PUMP

(01)

21

65

34

)

3

(0

21

65

34

COOL MODE

2

21 22

of
2

102

(
b

400.3.50

30-2

YLCC-

2
2
I-

21 22

)

2

(

21 22

21 22

S/PF5

ON/OFF

FLOW SWITCH

14

13

F3

1

HP1

(03)

1

LP1

2

P

M1

M2

A5

2

P

(3)

MOTOR GUARD
FAN 1

COMPRESSOR
PROTECTION 1

LOW PRESSURE
SWITCH 1

HIGH PRESSURE
SWITCH 1

58

24V

2

F10

1

4A

10 11

4

X2..

R

a

0V

T1

230V

150 VA

0V

b

B

X2..

Wiring diagram, YLCC- 122, 400.3.50 (1 of 2)

42

3

1

F6

13

Reg. (A)

13

F5

Reg. (A)

32

(A)

F3/F4

(A)

F1/F2

X3/...

3
1

X3/...

b

N

CRANKCASE
HEATER 4

CRANKCASE
HEATER 3

CRANKCASE
HEATER 2

CRANKCASE
HEATER 1

400.3.50

I-2371-1a

YLCC-122

a

(29)

KM4

22

21

(28)

KM3

21

22

(19)

KM2

22

21

(18)

KM1

21

22

R4

R3

R2

R1

L

4
2

9

A

F

4

135

F6

246246

22

21

14

13

35

46

1

KM6

2

(27)

246

22

21

E6

M

3 ~

M6

FAN 2

(05) (06)

(04)

(02) (03)

(01)

UNIT

YLCC-122 32

E0

400V, 3 ~, 50 Hz, N,

X1/...

PE

L1 L2 L3 N

Q1

135

135

135

135

135

14

13

35

46

1

KM5

35
1

2

(17)

46
2

246

F5

246

E5

M

M5

3 ~

FAN 1

E4

M4

M

3 ~

COMPRESSOR 4

(29)

F4

246

KM4

35
1

46
2

E3

M3

M

3 ~

COMPRESSOR 3

(28)

F3

246

F2

246

F1

KM3

35
1

KM2

35
1

KM1

46
2

(19)

46
2

(18)

E2

M2

M

3 ~

COMPRESSOR 2

E1

M1

M

3 ~

COMPRESSOR 1

59

Wiring diagram, YLCC- 122, 400.3.50 (2 of 2)

tLAN

7

NO7

3

C6/7

4

C8/9

9

NO9

2

C6/7

1

NO6

4

Y2

5

GND

1

ID7

2

ID9

9

ID8

8

ID6

6

GND GND

J1/1

J2/1 J2/2 J1/2J2/2

J2/1

C5

12

NO5

10

C3/4

8

NO3

7

NO2

4

C3/4

9

NO4

2

C1/2

1

NO1

4

Y1

5

GND

10

ID5

8

ID1

1

ID2

2

ID4

9

ID3

6

GND

T+ T+

30

29

B6

LWT
PROBE 2

B6B

612611

GND B6 GND B7

V+

Bn

DI/AI/P

GND

A2

tLAN

GND T+

X2/...

tLAN/485

BB1 BB2

GGO

GND B3

GND B1 GND B2

714

611

613612

J2/2

T-

R B

B2

19 20 21 22 23 24 25 26 27 28

18

LWT
PROBE-1

EWT
PROBE

B1

X2/... X2/...

A1

KEY/SPV

15 16 17

V+

GND B4

12 13 14

J2/1 J2/1 J2/2

714

GGO

24

22 25

21

2

4

3

7614

5 1

15

12

11

X2/...

14

14

14

14

KM4

KM3

KM2

KM1

13

F5

(29)

(28)

(19)

(18)

1

HP1

371-2a
2

400.3.50

)
3

A2

A1

KM4

A2

A1

13

13

C/H

13

13

KM3

A2

A1

KM6

14

13

26

F6

(06)

2

1

P

LP2

2

1

P

HP2

A2

A1

KM2

A2

A1

KM1

A2

A1

KM5

S/P

(0

21

65

34

)
6

(0

21

65

34

MOTOR GUARD
FAN.2

LOW PRESSURE
SWITCH 2

HIGH PRESSURE
SWITCH 2

COOL/HEAT MODE

ALARM

WATER PUMP

)
1

(0

21

65

34

)
5

(0

21

65

34

ON/OFF

FLOW SWITCH

)
4

)

(0

)

3

(

27

(

1413

21

34

21 22

21 22

)
2

)

(0

)

1

(

17

(

1413

21

34

21 22

21 22

I-

YLCC-122

)

)

4

(

27

(

65

1413

21 22

)

)

2

(

17

(

65

1413

21 22

F5

14

16

(05)

2

1

P

LP1

2

P

MOOR GUARD
FAN1

LOW PRESSURE
SWITCH 1

HIGH PRESSURE
SWITCH 1

60

11

410

X2/...

24V

1

2

R

6A

F10

a

0V

T1

150 VA

0V

230V

b

B

Wiring diagram, YLCC- 152, 400.3.50 (1 of 2)

a

(29)

42

3

1

L

X3/...

3

4

1

2

F6

Reg. (A)

F5

Reg. (A)

(A)

F3/F4

(A)

F1/F2

16

16

40

9

F

KM4

22

21

(28)

KM3

21

22

(19)

KM2

22

21

(18)

KM1

21

22

A

4

21

13

135

246246

F6

21

R4

R3

R2

R1

22

14

246

KM6

22

35
1

b

X3/...

46
2

(27)

CRANKCASE
HEATER 4

CRANKCASE
HEATER 3

CRANKCASE
HEATER 2

CRANKCASE
HEATER 1

N

400.3.50

I-2372-1a

YLCC-152

E6

M

3 ~

M6

FAN 2

(05) (06)

(04)

(02) (03)

(01)

UNIT

YLCC-152 40

E0

400V, 3 ~, 50 Hz, N,

X1/...

PE

L1 L2 L3 N

Q1

135

135

135

135

135

14

13

35

46

1

KM5

35
1

KM4

35
1

2

(17)

46
2

(29)

46
2

246

F5

246

F4

246

E5

M

M5

3 ~

FAN 1

E4

M4

M

3 ~

COMPRESSOR 4

E3

M3

M

3 ~

COMPRESSOR 3

(28)

F3

246

F2

246

F1

KM3

35
1

KM2

35
1

KM1

46
2

(19)

46
2

(18)

E2

M2

M

3 ~

COMPRESSOR 2

E1

M

M1

3 ~

COMPRESSOR 1

61

Wiring diagram, YLCC- 152, 400.3.50 (2 of 2)

30

29

B6

LWT
PROBE 2

B6B

612 611

GND B6 GND B7

V+

Bn

DI/AI/P

GND

A2

T+

tLAN

GND

X2/...

tLAN/485

BB1 BB2

GGO

GND B3

GND B2

GND B1

714

611

613 612

J2/2

T-

tLAN

R B

21 22 23 24 25 26 27 28

20

B2

19

LWT
PROBE-1

LWT
PROBE

B1

X2/... X2/...

A1

16 17 18

KEY/SPV

V+

13 14 15

GND B4

GGO

714

J2/1 J2/1 J2/2

7

NO7

3

C6/7

4

C8/9

9

NO9

2

C6/7

1

NO6

4

Y2

5

GND

1

ID7

2

ID9

9

ID8

8

ID6

6

GND GND

J1/1

J2/1 J2/2 J1/2J2/2

J2/1

C5

12

NO5

10

C3/4

8

NO3

7

NO2

4

C3/4

9

NO4

2

C1/2

1

NO1

4

Y1

5

GND

10

ID5

8

ID1

1

ID2

2

ID4

9

ID3

6

GND

T+ T+

24

22 25

21

2

4

3

7614

5 1

15

12

11

X2/...

)
3

A2

A1

KM4

A2

A1

14

13

(29)

KM4

13

14

(28)

KM3

13

F6

C/H

14

13

(19)

KM2

14

13

(18)

KM1

S/P

KM3

A2

A1

KM6

M4

1

HP2

M3

2

1

2

P

A1

KM2

A1

KM1

A1

KM5

2

1

2

1

P

LP2

A2

A2

A2

14

(06)

(0

21

65

34

)
6

(0

21

65

34

MOTOR GUARD
FAN 2

COMPRESSOR
PROTECTION 3 & 4

LOW PRESSURE
SWITCH 2

HIGH PRESSURE
SWITCH 2

COOL/HEAT MODE

ALARM

WATER PUMP

)
1

(0

21

65

34

)
5

(0

21

65

34

ON/OFF

FLOW SWITCH

)
4

)

(0

)

3

(

27

(

21

1413

34

21 22

21 22

)
2

)

(0

)

1

(

17

(

21

1413

34

21 22

21 22

2372-2a

)
4

(

65

21 22

)
2

(

65

21 22

400.3.50

I-

)

YLCC-152

27

(

1413

)
17

(

1413

F5

M2

14

13

F5

(05)

2

1

P

HP1

M1

16 26

2

2

1

2

1

LP1

1

P

MOTOR GUARD
FAN 1

COMPRESSOR
PROTECTION 1 & 2

LOW PRESSURE
SWITCH 1

HIGH PRESSURE
SWITCH 1

11 12

24V

0V

T1

150 VA

0V

230V

410

X2/...

1

2

R

6A

F10

a

Data and measurements are subject to change without prior notice.

62

B

X2/...

b

Ref.: Y-R70102 0205