York YLCA 7, YLHA PLUS 9, YLCA 15, YLCA 20, YLCA 27 Installation Manual

Air-condensed cooling units and heat
pumps YLCA / YLHA PLUS 5 to 27

Installation manual

Ref.: N-40314_EN 0910

Index

1 Installation manual...................................................................................................................1

1.1 Safety instructions....................................................................................................................2

1.2 Icons used in this document.....................................................................................................2

1.3 Instructions for storage, transport, loading and unloading of the unit......................................3

1.3.1 Inspection.................................................................................................................................3

1.3.2 Disposal of packaging..............................................................................................................3

1.3.3 Disposal of the unit...................................................................................................................4

1.3.4 Handling...................................................................................................................................4

1.4 Selection guide (YLCA/YLHA).................................................................................................4

1.4.1 Selection guide with glycol (cool only units).............................................................................7

1.5 Technical data..........................................................................................................................9

1.5.1 Limits of use.............................................................................................................................9

1.5.2 Correcting Factors....................................................................................................................9

1.5.3 Physical data..........................................................................................................................15

1.5.4 Electrical specifications..........................................................................................................17

1.6 Measurements, clearances and accesses.............................................................................18

1.6.1 Clearances.............................................................................................................................18

1.6.2 Dimensions and hydraulic connections␤(models YLCA/YLHA PLUS 5)................................20

1.6.3 Dimensions and hydraulic connections ␤(models YLCA/YLHA PLUS 7 and 9).....................21

1.6.4 Dimensions and hydraulic connections ␤(models YLCA/YLHA PLUS 12 and 15).................22

1.6.5 Dimensions and hydraulic connections ␤(models YLCA/YLHA PLUS 20 and 27).................23

1.7 Cooling capacities YLHA........................................................................................................24

1.7.1 Cooling capacities YLHA 5 ÷ 27.............................................................................................24

1.7.2 Cooling capacities YLHA 5 ÷ 27 (35% ethylene glycol).........................................................26

1.7.3 Heating capacities YLHA 5 ÷ 27.............................................................................................27

1.8 Cooling capacity YLCA..........................................................................................................28

1.8.1 Cooling capacities YLCA 5 ÷ 27.............................................................................................28

1.8.2 Cooling capacities YLCA 5 ÷ 27 (35% ethylene glycol).........................................................29

1.9 Instructions for installation and connection of the unit...........................................................30

1.9.1 Characteristics of the location................................................................................................30

1.9.2 Specifications for anchoring the unit......................................................................................31

1.9.3 Hydraulic connections............................................................................................................32

1.9.4 Wiring diagrams.....................................................................................................................32

1.10 Instructions for starting up the unit.........................................................................................33

1.10.1 Rotational direction of Scroll compressors.............................................................................33

1.11 Unit sound pressure data.......................................................................................................33

1.12 Unit installation data...............................................................................................................34

1.12.1 List of tests for unit start-up....................................................................................................34

1.12.2 Start-up Data..........................................................................................................................35

2 Electric circuit diagrams.........................................................................................................37

2.1 Electric circuit diagram YLCA/YLHA PLUS 5÷9 MC and M (230.1.50)..................................38

Index

i

2.2 Electric circuit diagram YLCA/YLHA PLUS 12 MC and M (230.1.50)....................................40

2.3 Electric circuit diagram YLCA/YLHA PLUS 7 and 9 TC and T (400.3.50)............................. 42

2.4 Electric circuit diagram YLCA/YLHA PLUS 12 and 15 TC and T (400.3.50)......................... 44

2.5 Electric circuit diagram YLCA/YLHA PLUS 20 TC and T (400.3.50)..................................... 46

2.6 Electric circuit diagram YLCA 27 TC, YLHA PLUS 27 (400.3.50)..........................................48

2.7 Electric circuit diagram YLCA PLUS 5 ÷ 9 MCS (230.1.50) SOFT START........................... 50

2.8 Electric circuit diagram YLCA PLUS 12 MCS (230.1.50) SOFT START............................... 52

Index

ii

1

Installation manual

1.1 Safety instructions

This document contains the necessary information for the safe and efficient transportation, assembly
and installation of the air conditioning unit. This guarantees the condition of the unit and its operating
safety.

Only an authorised company may assemble the air conditioning unit.

A T T E N T I O N

Only authorised companies with the appropriate technical resources and suitably trained personnel may
install the air conditioning unit.

C A U T I O N

The specialists responsible for installing the air conditioning unit must make sure they have all of the
information and knowledge required to correctly install, test and deliver the unit. Johnson Controls Inc.
shall not be considered responsible for any damage caused by installation of the unit that is no consistent
with that described in this document or others specifically provided with the unit.

During regular equipment installation, the fitter must pay special attention to certain situations in order
to prevent injuries or damage to the unit.

Situations that could jeopardise the safety of the fitter or that of others nearby or that could put the unit
itself at risk are clearly indicated in this manual.

A series of special symbols are used to clearly identify these situations.

Pay careful attention to these symbols and to the messages following them, as your safety and the safety
of others depends on it.

1.2 Icons used in this document

D A N G E R

• The text following this symbol contains information and instructions relating directly to your safety
and physical wellbeing.

• Not taking these instructions into account could lead to serious, very serious or even fatal injuries to
you and others in the proximities of the unit.

Information can also be found on safe procedures during unit handling. This will help reduce the risk of
accidents.

C A U T I O N

• The text following this symbol contains information and instructions relating directly to your safety
and physical wellbeing.

• Not taking these instructions into account could lead to minor injuries to you and others in the prox‐
imities of the unit.

• Not taking these instructions into account could lead to unit damage.

Information can also be found on safe procedures during unit handling. This will help reduce the risk of
accidents.

N O T E

• The text following this symbol contains information or instructions that may be of use or that is worthy
of a more thorough explanation.

• Instructions regarding inspections to be made on unit parts or systems may also be included.

1

Installation manual

1.1 Safety instructions

2

1.3 Instructions for storage, transport, loading and unloading of
the unit

C A U T I O N

Outdoor units must be moved and stored vertically to prevent oil from leaking from the compressor.

Delivery inspection

The unit should be carefully inspected for visible damage or abnormalities as soon as it is received.

Any abnormalities or damage to the unit should be communicated to both the transportation and insur‐
ance company in writing.

Storage instructions

The unit should be stored in a place suitable to the purpose (warehouse or similar), protected from the
weather, water, humidity and dust.

Cover the unit with a canvas of a suitable size.

The unit should be appropriately protected from knocks and dust, ensuring the protective parts it was
supplied with remain in place. Where these are not in place, establish the necessary protections and/or
barriers to keep vehicles or fork-lift trucks away.

Transport, loading and unloading of the unit

The units should only be handled by personnel from the company responsible for their installation.

Transport of the unit should be in such a manner that no damage is caused by faulty or inadequate
mooring to the bed or body of the vehicle.

Where necessary, protect all of the edges of the unit against knocks and scratches and moor it to the
bed or body of the vehicle using suitable textile belts or slings to keep it perfectly still.

Loading and unloading the unit from a truck or trailer should be on flat, solid ground using an appropriate
crane with sufficient capacity.

1.3.1 Inspection

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

1.3.2 Disposal of packaging

The packaging is recyclable. Dispose of it in the appropriate place or take it to an appropriate collection
centre. Respect the regulations in force for this type of waste in the country where the unit is being
installed.

Packaging remains must be correctly disposed of. Improper disposal of packaging generates environ‐
mental problems that affect human life.

Installation manual

1

Instructions for storage, transport, loading and unloading of the unit 1.3

3

1.3.3 Disposal of the unit

When removing the unit, the components must be ecologically recovered. The cooling circuit is full of
coolant that must be extracted and delivered to the gas manufacturer for recycling.

A T T E N T I O N

The refrigerant gas contains greenhouse-effect fluorinated gas covered by the Kyoto protocol.

Please see the specifications plate for type of gas and quantity per system.

GWP (Global Warning Potential): 2088

There will be oil left in the hermetic compressor, therefore it must be delivered with the circuit sealed.

The air conditioner shall be deposited in the area established by local authorities, to facilitate its selective
recovery.

1.3.4 Handling

The unit must be moved using the metal rails provided for its installation and transport

1.4 Selection guide (YLCA/YLHA)

Necessary information
The following information is needed to select a YLCA/YLHA water cooling unit:
1 Cooling capacity needed

2 Design cold water inlet and outlet temperatures.
3 Design water flow rate, if one of the temperatures of Point 2 above is unknown.
4 Design inlet temperature of air to the condenser. Normally, this will be the design ambient temperature

of summer air, unless influenced by the situation or other factors.

5 Altitude above sea level.
6 Design fouling factor of the evaporator.

N O T E

Points 1, 2 and 3 should be related by means of the following formulae:

Cooling capacity kW =

l/h cold water x differential °C

860

1 Installation manual

1.4 Selection guide (YLCA/YLHA)

4

SELECTION EXAMPLE

A cooler is required to chill water from 13°C to 7°C, with a cooling capacity of 5 kW.

There are also other design conditions:

• Inlet ambient air in the condenser 35 °C

• Fouling factor: 0,044 m2 °C/kW

• Altitude: Sea level

From a quick glance at the table

Cooling capacities YLCA 5 ÷ 27, see on page 28

it can be seen that

a YLCA 5 gives approximately the required capacity of 5,38 kW.

As the factors appearing in tables

Fouling factors, see on page 9

and

Altitude factors, see on page

12

are not applicable, the conditions will be as follows:

• Cooling capacity: 5,38 kW

• Power consumed: 1,87 kW

• Water temperature: 13°C to 7°C (Temp. difference of 6)

Water flow rate =

5,38 x 860

= 771 l/h

6

Available pressure in the unit's hydraulic circuit:

• From Table

Pressure available for the hydraulic circuit and pressure drop in the hydraulic circuit (with‐

out filter mounted), see on page 13

we infer that the YLCA 5 MC, with a flow rate of 771 l/h, has an

available pressure of 56 kPa.

Pressure drop in filter:

• From Table

Pressure drop in filters, see on page 14

we infer that with a flow rate of 771 l/h, there is

a pressure drop of 1,3 kPa.

YLHA PLUS selection method
1 Establish the correct size of YLHA PLUS by selecting the model from the tables

Heating capacities

YLHA 5 ÷ 27, see on page 27

and

Cooling capacities YLCA 5 ÷ 27, see on page 28

that is closest
to the cooling and heating capacities required in design conditions of the water outlet temperature
and air inlet temperature.

2 Apply fouling correction factors (table

Fouling factors, see on page 9

) and height correction factors

(table

Altitude factors, see on page 12

) to the capacity and power values shown in the corresponding
tables of capacity for the cool and heat modes. Make sure the corrected capacity is still sufficient for
your needs.

3 Using the corrected capacities of the unit, select the design temperature differential or the flow rate.
4 Check to make sure that these selections are within the YLCA/YLHA PLUS operating limits.

Installation manual

1

Selection guide (YLCA/YLHA) 1.4

5

YLHA PLUS SELECTION EXAMPLE

A YLHA PLUS 5 heat pump operating at a 35 °C ambient temperature should cool water from 13 °C to
7 °C, with a 5 kW cooling capacity.

A 4 kW heating capacity is required in 0 °C design ambient temperature and a hot water outlet temper‐
ature of 45 °C.

The fouling factor is 0,044 m2 °C/kW, with the unit operating at sea level (no corrections). From a quick
glance at the tables

Heating capacities YLHA 5 ÷ 27, see on page 27

and

Cooling capacities YLCA 5

÷ 27, see on page 28

we see that a YLHA PLUS 5 heat pump approximately gives the required ca‐

pacities:

• Cooling capacity = 5,4 kW

• Total unit absorbed power = 1,91 kW

• Cold water temperature = 13 °C to 7 °C (Temp. diff. of 6 °C)

• Hot and cold water flow rate = 774 l/h

• Heating capacity = 4,15 kW

• Total unit absorbed power in heat mode = 1,88 kW

• Hot water outlet temperature = 45 °C

Hot water temp. dif‐

ferential

=

4,15 x 860

= 4,60 °C

774

Thus, hot water return temperature is = 40,4 °C

All values are within operating limits:

• Available pressure in hydraulic circuit of a unit with pack:

• From Table

Pressure available for the hydraulic circuit and pressure drop in the hydraulic circuit (with‐

out filter mounted), see on page 13

we infer that the YLHA PLUS 5 MC, with a flow rate of 748 l/h,

has an available pressure of 56,5 kPa.

• Pressure drop in filter.
– From Table

Pressure drop in filters, see on page 14

, 1" filter, we infer that with a 748 l/h flow

rate, said filter has a pressure drop of 1,2 kPa.

1

Installation manual

1.4 Selection guide (YLCA/YLHA)

6

1.4.1 Selection guide with glycol (cool only units)

Necessary information
The following information is needed to select a YLCA cooling unit:
1 Cooling capacity needed

2 Design cold water/glycol inlet and outlet temperatures.
3 Design water/glycol flow rate.
4 Design inlet temperature of air to the condenser. Normally, this will be the design ambient temperature

of summer air, unless influenced by the situation or other factors.
5 Altitude above sea level.
6 Design fouling factor of the evaporator.

N O T E

Points 1, 2 and 3 should be related by means of the following formulae:

Capacity (kW) =

Temp. diff. (°C) x Flow rate (litres/sec.)

Glycol factor

Temp. differential (°C) = Liquid Inlet Temp. ‑ Liquid Outlet Temp.

To determine the glycol factor, please see

Glycol concentration and correcting tables, see on page

10

(Recommended ethylene glycol concentrations) for ethylene glycol or (Recommended propylene
glycol concentrations) for propylene glycol. For design outlet temperature, please see the recommended
glycol concentration and the glycol factor in this concentration. This is the minimum concentration to be
used for design outlet temperature. If a greater concentration is required, the glycol factor can be deter‐
mined by means of

Glycol concentration and correcting tables, see on page 10

(Ethylene glycol in other

concentrations) or (Propylene glycol in other concentrations).

Selection method
1 Determine the correct cooling unit model by selecting the one that is closest to the capacities required

by the design conditions of the glycol outlet and air inlet temperatures.

2 Apply the fouling correcting factors that correspond to the fouling, altitude and glycol concentration

factor, to the capacity and power values in the capacity tables. Make sure the corrected capacity is
still sufficient for your needs.

3 Using the corrected capacities of the cooler, set the design temperature range, or the flow rate, to

balance the formulae appearing in

Selection guide (YLCA/YLHA), see on page 4

.

4 Always recheck to make sure these selections are within the specified design limits.

Selection example

A cooler is required to chill ethylene glycol from 1 a to ‑4 °C, with an output of 3,5 kW.

The following design conditions are applicable:

• Fouling factor: 0,088m °C/kW

• Altitude: 1 200m

• Ambient air: 30 °C

• Glycol concentration: 30% w/w

For a ‑4 °C ethylene glycol outlet, the concentration recommended in Figure 1 is 30%. Therefore, the
specified concentration is appropriate.

From Table

Cooling capacities YLCA 5 ÷ 27 (35% ethylene glycol), see on page 29

, we infer that a
YLCA 5 unit, at the established design conditions, gives a capacity of 3,4 kW and a consumption of 1,35
kW.

With the design fouling factor, use the capacity correcting factors x 0,987 and power x 0,995 (see

Fouling

factors, see on page 9

).

On design altitude, apply the capacity correcting factors x 10,973 and power x 1,020 (see

Altitude fac‐

tors, see on page 12

).

Installation manual

1

Selection guide (YLCA/YLHA) 1.4

7

On design glycol concentration, apply the capacity correcting factors x 1,015 and power x 1,005
(see

Correcting factors for other glycol concentrations, see on page 12

).

Applying these factors to the selection: YLCA 5

Capacity = 3,44 x 0,987 x 0,973 x 1,015 = 3,35 kW

Comp. power = 1,35 x 0,995 x 1,020 x 1,005 = 1,37 kW

For the specified glycol concentration and a ‑4 °C outlet temperature, Figure 3 shows a 0,248 glycol
factor. Thus, the flow rate can be determined with the formula appearing in

Selection guide (YLCA/

YLHA), see on page 4

.

3,35 [kW] =

(1 ‑ (-4)) x Flow rate [l / s]

0,248

Flow rate =

3,35 x 0,248

= 0,166 [l / s] or 598 [l / h]

5

This covers the Limits of Use.

The evaporator pressure drop can be determined by taking the water pressure drop value for a YLCA
unit and multiplying it by the correction factor (see

Glycol concentration and correcting tables, see on

page 10

) for a 30% concentration and an average temperature of ‑1,5 °C, i.e.:

-1,5 °C=

1 + (-4)

2

42 kPa x 1,22 = 51,2 kPa.

1

Installation manual

1.4 Selection guide (YLCA/YLHA)

8

1.5 Technical data

1.5.1 Limits of use

Model

Voltage limits

Inlet air temperature to the

coil DB

Water outlet temperature

Temperature difference be‐
tween water outlet and inlet

Nominal at 400

Operating cycle Operating cycle

Minimum °C

Maximum

°C

Minimum °C Maximum °C

Minimum °C Maximum °C

Mini‐
mum

Maxi‐

mum

Cold

Hea

t

Cold

Hea

t

Cold Heat Cold Heat

YLCA

342 436 -10(2)

­46

­5(1)

­15

­3 7

YLHA
PLUS

-10 20 30 50(3)

(1) At lower water temperatures, it is advisable to use glycol-type antifreeze mixtures. Minimum

temp. with glycol ‑5 °C.

(2) -18 °C with low temperature (optional) in models YLCA/YLHA PLUS 20, 27.

(3) 50 °C if the inlet air temp. is higher than 0 °C.

Prior to final approval of the installation
Check:

• Voltage remains between 342 ‑ 436 V.A.

C A U T I O N

The cable used for the unit power supply must be H05 RN ‑ F

• Power supply cable cross-section is at least as indicated in the corresponding wiring diagrams. The
cable used for the unit power supply must be H05 RN-F.

• Operating instructions have been given to the user.

• The warranty card has been filled out.

• Maintenance instructions have been given, or a regular maintenance contract has been signed.

1.5.2 Correcting Factors

Fouling factors

Evaporator

Fouling Factor m2 °C/kW Capacity factor

compressor

absorbed power factor

0,044 1 1

0,088 0,987 0,995

0,176 0,964 0,985

0,352 0,926 0,962

Installation manual 1

Technical data 1.5

9

Glycol concentration and correcting tables

Recommended ethylene glycol concentrations

A % in weight a

Recommended con‐
centration % in weight

B

Outlet liquid temper‐
ature °C

b Freeze point

C

Glycol factor L/S °C/
kW in recommended
concentrations

c

Glycol factor in recom‐
mended concentrations

Ethylene glycol in other concentrations.

A Glycol factor

B Outlet liquid temperature °C

C Glycol factor

Recommended propylene glycol concentrations

A % in weight a

Recommended concen‐
tration % in weight

B

Outlet liquid temper‐
ature °C

b Freeze point

C

Glycol factor L/S °C/
kW in recommended
concentrations

c

Glycol factor in recom‐
mended concentrations

A

a

b

c

C

B

A C

B

a

b

c

1 Installation manual

1.5 Technical data

10

Propylene glycol in other concentrations

A Glycol factor

B Outlet liquid temperature °C

C Glycol factor

Ethylene glycol pressure drop correcting factor

A Correcting Factor

B Average liquid temperature °C

C Glycol concentration P/P

Propylene glycol pressure drop correcting factor

A

Correcting Factor

B Average liquid temperature °C

C Glycol concentration P/P

A C

B

A C

B

A C

B

Installation manual 1

Technical data 1.5

11

Correcting factors for other glycol concentrations

% in weight

Ethylene glycol Propylene glycol

Capacity Absorbed power Capacity Absorbed power

10 1,061 1,025 1,097 1,033

20 1,036 1,015 1,067 1,023

30 1,015 1,005 1,026 1,008

35 1 1 1 1

40 0,985 0,995 0,974 0,992

50 0,954 0'985 0,923 0,977

If it is necessary to select different glycol percentages, correct the capacity and absorbed power capaci‐
ties of tables 2 and 4 (35% ethylene glycol), multiplying them by the coefficients indicated in the table.

Altitude factors

Altitude Capacity factor compressor absorbed power factor

0 1 1

600 0,987 1,01

1200 0,973 1,02

1800 0,958 1,029

2400 0,943 1,038

1 Installation manual

1.5 Technical data

12

Pressure available for the hydraulic circuit and pressure drop in the hydraulic
circuit (without filter mounted)

YLCA/YL‐

HA PLUS

model

Flow rate l/h Avail. kPa

YLCA/YLHA
PLUS model

Flow rate l/h Avail. kPa

05

600 61

15

1 700 221

800 55

2 000 200

1 000 46

2 300 170

1 200 36

2 600 140

1 400 25

2 900 105

07

800 96

3 200 60

1 000 91

3 500 10

1 200 81

20

2 000 175

1 400 70

2 500 160

1 600 58

3 000 145

1 800 45

3 500 125

2 000 28

4 000 105

09

1 000 95

4 500 83

1 200 88

5 000 60

1 400 80

5 500 30

1 600 70

27

3 000 245

1 800 60

3 500 228

2 000 49

4 000 208

2 200 37

4 500 187

2 400 24

5 000 163

12

1 400 149

5 500 140

1 700 134

6 000 112

2 000 118

6 500 83

2 300 95

7 000 49

2 600 62

7 500 15

2 900 30

Data with water at 10°C.

In the case of using glycol, apply the correcting factors indicated in Section

Correcting factors for other

glycol concentrations, see on page 12

.

Installation manual

1

Technical data 1.5

13

Pressure drop in filters

1" filter

Water flow rate (l/h) 600 800 1000 1200 1400 1600

kPa 0,7 1,4 2,6 4,3 6,4 8,9

Water flow rate (l/h) 1800 2000 2200 2400 2600

kPa 11,8 15,1 18,8 22,8 27,1

1 1/4" filter

Water flow rate (l/h) 1500 2000 2500 3000 3500

kPa 0,9 1,5 2,6 3,9 5,6

Water flow rate (l/h) 4000 4500 5000 5500 6000

kPa 7,7 10,1 12,8 15,7 18,8

Data with water at 10°C.

In the case of using glycol, apply the correcting factors indicated in Section

Correcting factors for other

glycol concentrations, see on page 12

.

1

Installation manual

1.5 Technical data

14

1.5.3 Physical data

Physical data, YLCA units

Physical data

YLCA (M and MC) YLCA (T and TC)

Characteristics 5 7 9 7 9 12 15 20 27

Cooling capacity kW 5,38 7,13 9,05 7,13 9,05 12,4 14,5 19,52 25,6

Capacity control %

Power supply V/ph 230.1.50 400.3.50

Max. unit power supply consumption kW 2,57 3,61 4,36 3,61 4,36 5,68 8 9,17 12,09

Max. unit current amperage A 11,75 17,1 23 7,6 8,25 11,6 15,8 18,1 23

EER 2,87 2,76 2,79 2,76 2,81 2,97 2,52 2,81 2,81

Compressor

Compressor power

kW 1,73 2,41 3,2 2,41 3,2 3,8 5,38 6,57 8,73

Compressor amperage A 7,8 11,7 16 3,9 5,3 6,36 8,9 13 16,7

No. of compressors 1

Compressor type SCROLL

Oil charge l 1,1 1,25 1,95 1,66 2,51 3,25

Oil type POLYOL ESTER OIL

Compressor start-up
current

A 60 82 97 35 48 51 74 95 118

Evaporator unit type PLATES

Fan

No. of fans

1 2

Fan diameter mm 450 560

Fan power W 140 170 2 x 185 2 x 175

Fan amperage A 0,6 0,8 2 x 0,87 2 x 0,85

Total air flow rate m³/h 2900 3150 6150 6300 7200

Sound power dB(A) 70 70 71 70 71 73 73 74 78

Sound pressure at 5 m dB(A) 44 44 45 44 45 47 47 48 51

Sound pressure at
10 m

dB(A) 40 40 41 40 41 43 43 44 48

Available static pres‐
sure at nominal flow
rate (without filter) (2)

kPa 51 80 78 80 75 115 152 134 191

Available static pres‐
sure at nominal flow
rate (with filter) (3)

kPa 49 75,5 71 75,5 67,5 113 149 129,5 182

Coolant

Coolant type R-410A

Coolant charge kg 2,08 2,55 2,25 2,55 2,15 3,17 3,1 5 7,8

No. of coolant circuits

Water circuit

Nominal water flow rate

l/h 925 1225 1430 1225 1475 2065 2530 3360 4405

Min water volume inst.
(1)

l 15 20 25 20 25 35 45 55 75

Water connection, fe‐
male

1" 1 1/4"

water filter, female 1" 1 1/4"

No. of pumps 1

Pump power W 160 210 400 490 390 755

Pump amperage A 0,65 0,95 1,8 2,15 1,1 1,34

Unit water content l 1 1,1 1,2 1,1 1,2 1,5 2 2,8 3,2

Volume of expansion
vessel

l 1 2 5 8

Safety valve
setting

MPa
(bar)

0,6
(6)

Dimensions
and weight

Weight (4)(5) kg 75 99 100 99 100 146 160 220 290

Length mm 905 1430 1876

Width mm 460 502

Height mm 762 965 1270

(1)

Minimum volume of water in installation: In installations with smaller volumes, and under low load conditions, the function "Omission of inertia tank" is automatically
activated. As a result, the water temperature becomes less accurate as the total volume of water in the installation is reduced.

(2) Please enquire before applying values lower than those shown.

(3) Static pressure available, Eurovent certified. Pressure with clean filter.

(4) Weights for the empty unit.

Installation manual 1

Technical data 1.5

15

Physical data, YLHA units

Physical data

YLHA PLUS MC YLHA PLUS TC

Characteristics 5 7 9 12 9 12 15 20 27

Cooling capacity kW 5,4 7,10 8,72 11,75 8,72 12 13,8 19,4 25,8

Heating capacity kW 6,3 7,16 10,1 12,25 10,1 12,4 16,1 20,9 27,5

Power supply V/ph 230.1.50 400.3.50

Max. unit power supply consumption kW 2,57 3,48 4,79 5,51 4,79 5,68 7,6 8,70 12,09

Max. unit current amperage A 11,75 16,4 23 25,7 5,5 11,6 12,4 15,5 21

EER/COP nominal conditions 2,82/3,32 2,75/2,90

2,73/3,252,75/3,122,73/3,2

5

2,88/3 2,52/3,12 2,75/3,25 2,90/3,30

COP air 7/6 ‑ water 30/35 3,78 3,48 3,88 4,01 3,88 3,86 4 3,96 4,03

Compressor

Compressor power in
cooling

kW 1,77 2,41 3,16 3,90 3,16 3,8 5,13 6,71 8,47

Compressor power in
heating

kW 1,76 2,30 3,06 3,55 3,06 3,77 4,81 6,06 7,89

Compressor amper‐
age in cooling

A 8,4 11,7 15,6 20,2 5,3 6,36 8,7 11,7 15,1

Compressor amper‐
age in heating

A 8,1 11,2 14,4 18,7 5,1 6,38 8,2 10,8 14,3

No. of compressors 1

Compressor type SCROLL

Oil charge l 1,1 1,25 1,24 1,25 1,24 1,89 2,51 3,25

Oil type POLYOL ESTER OIL

Compressor start-up
current (5)

A 60/<45 82/<45 97/<45 116/<52 48 51 74 95 118

Evaporator unit type PLATES

Fan

No. of fans

1 2 1 2

Fan diameter mm 450 560

Total fan power W 140 170 2 x 185 170 2 x 185 2 x 180 2 x 200

Total fan current A 0,6 0,8 2 x 0,87 0,8 2 x 0,87 2 x 1,30

Total air flow rate m³/h 2900 3150 6150 6300 7200

Sound power dB(A) 70 70 71 73 71 73 73 74 78

Sound pressure at 5 m dB(A) 44 44 45 47 45 47 47 48 51

Sound pressure at
10 m

dB(A) 40 40 41 43 41 43 43 44 48

Available static pres‐
sure at nominal flow
rate (without filter) (2)

kPa 51 80 75 116 75 118 160 130 191

Available static pres‐
sure at nominal flow
rate (with filter) (3)

kPa 49 76 67,5 100 67,5 116 157,5 124 182

Coolant

Coolant type R-410A

Coolant charge kg 1,86 2,55 2,35 3,14 2,35 3,50 3,40 5,80 8,20

No. of coolant circuits

Water circuit

Nominal water flow
rate

l/h 930 1220 1430 2020 1495 1980 2375 3335 4440

Min water volume inst.
(1)

l 15 20 25 35 25 35 45 55 75

Water connection, fe‐
male

1" 1 1/4"

water filter, female 1" 1 1/4"

No. of pumps 1

Pump power W 160 210 400 210 400 490 390 755

Pump amperage A 0,65 0,95 1,8 0,95 1,8 2,15 1,1 1,34

Unit water content l 1 1,1 1,2 1,5 1,2 1,5 2 2,8 3,2

Volume of expansion
vessel

l 1 2 5 2 5 8

Safety valve setting

MPa
(bar)

0,6
(6)

Dimensions
and weight

Weight (4)(5) kg 77 102 103 154 103 150 164 235 330

Length mm 905 1430 1876

Width mm 460 502

Height mm 762 965 1270 965 1270

1 Installation manual

1.5 Technical data

16

(1)

Minimum volume of water in installation: In installations with smaller volumes, and under low load conditions, the function "Omission of inertia tank" is automatically
activated. As a result, the water temperature becomes less accurate as the total volume of water in the installation is reduced.

(2) Please enquire before applying values lower than those shown.

(3) Static pressure available, Eurovent certified. Pressure with clean filter.

(4) Weights for the empty unit.

(5) With Soft Start.

1.5.4 Electrical specifications

Model

Power sup‐

ply V.ph.Hz.

Compressor Fans Pump

Nominal A Start-up A Nominal kW

Nominal A Nominal W Nominal A Nominal W

Cold Heat Standard Soft Start Cold Heat

YLCA 5

230.1.50

7,80

­60 <45

1,73 -

0,60 140 0,65 160

YLHA PLUS 5 7,80 8,10 1,73 1,76

YLCA 7 11,70 -

82 <45

2,41 -

0,80 170 0,95 210

YLHA PLUS 7 12,40 13,20 2,56 2,76

YLCA 9 17 -

97 <45

3,20 -

YLHA PLUS 9 17 14,50 3,16 3,06

YLHA PLUS 12 16,30 14,80 116 <52 3,29 2,98 2 x 0,87 2 x 185 1,80 400

YLCA 7

400.3.50

3,90

­35

- 2,41 -

0,80 170 0,95 210

YLHA PLUS 7 4,10 4,80 - 2,56 2,76

YLCA 9 5,70 -

48

- 3,20 -

YLHA PLUS 9 6 5,80 - 3,16 3,06

YLCA 12 6,36 -

51

- 3,80 -

2 x 0,87 2 x 185

1,80 400

YLHA PLUS 12 6,36 6,38 - 3,80 3,77

YLCA 15 8,90 -

74

- 5,38 ­2,15 490

YLHA PLUS 15 8,70 8,90 - 5,25 5,23

YLCA 20 13 -

95

- 6,65 -

2 x 0,8 2 x 170 1,10 390

YLHA PLUS 20 12,20 11,70 - 6,62 6,26

YLCA 27 16,70 -

118

- 8,73 -

2 x 0,85 2 x 175 1,34 755

YLHA PLUS 27 16,70 16 - 8,73 8,24

Installation manual 1

Technical data 1.5

17

1.6 Measurements, clearances and accesses

1.6.1 Clearances

When installing each unit, clearances should be left for:
1 Air inlet and discharge.

2 Maintenance servicing.
3 Power supply connections.

To operate correctly, all minimum clearances shown on the general dimension diagrams should be re‐
spected, with regard to the possible obstruction of air circulation or of the work of an operator.

Minimum technical clearance YLCA 5, 7, 9, 12 and 15

600

300

800 150

400

N O T E

Distances in millimetres

1

Installation manual

1.6 Measurements, clearances and accesses

18

Minimum technical clearance YLCA/YLHA PLUS 20 and 27

600

300

300800

A

A Water inlet and outlet

N O T E

Distances in millimetres

Installation manual

1

Measurements, clearances and accesses 1.6

19

1.6.2 Dimensions and hydraulic connections
(models YLCA/YLHA PLUS 5)

762

32

905

405

10

323

152

430

440

10

460

17,5

31

66

66

90

8

0

55

47

Ø 11,5

A

B

C

A Water inlet 1" G C Drain connection Øext. 15

B Water outlet 1" G

1 Installation manual

1.6 Measurements, clearances and accesses

20

1.6.3 Dimensions and hydraulic connections
(models YLCA/YLHA PLUS 7 and 9)

90

55

47

32

905

405

323

152

430

440

10

460

10

Ø 11,5

17,5

31

66

66

933

965

80

A

B

C

A Water inlet 1" G C Drain connection Øext. 15

B Water outlet 1" G

Installation manual 1

Measurements, clearances and accesses 1.6

21

1.6.4 Dimensions and hydraulic connections
(models YLCA/YLHA PLUS 12 and 15)

1270

32

1238

405

905

32

3

152

43

0

440

10

460

10

Ø 11,5

17,5

31

66

66

90 675

55

26

A

B

C

A Water inlet 1" G C Drain connection Øext. 15

B Water outlet 1" G

1 Installation manual

1.6 Measurements, clearances and accesses

22

1.6.5 Dimensions and hydraulic connections
(models YLCA/YLHA PLUS 20 and 27)

YLCA/YLHA PLUS 20 & 27

1270

577

5090

43,5

43,5 415

502

160

89

11/4”GF

75

Ø38

D

C

11/4”GF

18

18

15

15

A

B

4

4

3

1

2

5

a

c

d

b

a Rear view 1 Water outlet

b Side view 2 Water inlet

c Front view 3 Air outlet

d Upper view 4 Air inlet

5 Water drainage

Model A B C D

YLCA/YLHA PLUS 20 1430 1394 136 428

YLCA/YLHA PLUS 27 1876 1840 144 432

Installation manual 1

Measurements, clearances and accesses 1.6

23

1.7 Cooling capacities YLHA

1.7.1 Cooling capacities YLHA 5 ÷ 27

YLHA
PLUS

Water

outlet
temp

°C

Outdoor ambient temperature °C DB (80% RH)

20 25 30 32 35 40 43 46

Cap.

Abs.

power

Cap.

Abs.

power

Cap.

Abs.

power

Cap.

Abs.

power

Cap.

Abs.

power

Cap.

Abs.

power

Cap.

Abs.

power

Cap.

Abs.

power

kW kW kW kW kW kW kW kW kW kW kW kW kW kW kW kW

5 M

5

6,00 1,50 5,70 1,58 5,25 1,70 5,10 1,80 5,06 1,90 4,49 2,10 4,22 2,23 3,88 2,50

6 6,25 1,50 5,80 1,59 5,45 1,71 5,29 1,81 5,23 1,90 4,77 2,11 4,47 2,23 4,07 2,50

7 6,50 1,51 5,90 1,60 5,60 1,72 5,48 1,81 5,40 1,91 5,06 2,12 4,72 2,24 4,22 2,51

8 6,60 1,51 6,00 1,61 5,67 1,73 5,59 1,82 5,55 1,92 5,21 2,13 4,87 2,26 4,41 2,51

10 6,70 1,51 6,20 1,61 5,86 1,75 5,70 1,84 5,70 1,95 5,36 2,16 5,10 2,29 4,64 2,52

12 6,80 1,52 6,40 1,62 6,01 1,76 5,86 1,85 5,82 1,97 5,51 2,19 5,32 2,32 4,98 2,52

15 7,00 1,52 6,70 1,63 6,24 1,78 6,08 1,87 5,97 2,00 5,70 2,22 5,59 2,37 5,30 2,53

7 M

5

7,60 2,06 7,30 2,14 6,90 2,30 6,70 2,43 6,65 2,56 5,90 2,84 5,55 3,01 5,10 3,20

6 7,75 2,07 7,45 2,15 7,10 2,31 6,95 2,44 6,88 2,57 6,28 2,85 5,88 3,02 5,35 3,24

7 7,90 2,07 7,60 2,16 7,30 2,32 7,20 2,45 7,10 2,58 6,65 2,86 6,20 3,03 5,55 3,28

8 8,05 2,08 7,75 2,17 7,45 2,34 7,35 2,46 7,30 2,60 6,85 2,88 6,40 3,05 5,80 3,32

10 8,30 2,08 7,90 2,18 7,70 2,36 7,50 2,48 7,50 2,63 7,05 2,92 6,70 3,09 6,10 3,38

12 8,55 2,09 8,20 2,19 7,90 2,38 7,70 2,50 7,65 2,66 7,25 2,96 7,00 3,14 6,55 3,42

15 8,90 2,09 8,50 2,20 8,20 2,40 8,00 2,53 7,85 2,70 7,50 3,00 7,35 3,20 6,97 3,48

9 M

5

9,31 2,76 8,95 2,87 8,45 3,08 8,21 3,26 8,15 3,43 7,23 3,81 6,80 4,04 6,25 4,29

6 9,50 2,78 9,13 2,88 8,70 3,10 8,52 3,27 8,42 3,45 7,69 3,82 7,20 4,04 6,56 4,35

7 9,68 2,78 9,31 2,90 8,95 3,11 8,82 3,29 8,70 3,46 8,15 3,84 7,60 4,06 6,80 4,40

8 9,86 2,79 9,50 2,91 9,13 3,14 9,01 3,30 8,95 3,49 8,39 3,86 7,84 4,09 7,11 4,45

10 10,17 2,79 9,68 2,92 9,44 3,16 9,19 3,33 9,19 3,53 8,64 3,92 8,21 4,14 7,47 4,53

12 10,48 2,80 10,05 2,94 9,68 3,19 9,44 3,35 9,37 3,57 8,88 3,97 8,58 4,21 8,03 4,59

15 10,91 2,80 10,42 2,95 10,05 3,22 9,80 3,39 9,62 3,62 9,19 4,02 9,01 4,29 8,54 4,67

9 T

5

9,31 2,76 8,95 2,87 8,45 3,08 8,21 3,26 8,15 3,43 7,23 3,81 6,80 4,04 6,25 4,29

6 9,50 2,78 9,13 2,88 8,70 3,10 8,52 3,27 8,42 3,45 7,69 3,82 7,20 4,04 6,56 4,35

7 9,68 2,78 9,31 2,90 8,95 3,11 8,82 3,29 8,70 3,46 8,15 3,84 7,60 4,06 6,80 4,40

8 9,86 2,79 9,50 2,91 9,13 3,14 9,01 3,30 8,95 3,49 8,39 3,86 7,84 4,09 7,11 4,45

10 10,17 2,79 9,68 2,92 9,44 3,16 9,19 3,33 9,19 3,53 8,64 3,92 8,21 4,14 7,47 4,53

12 10,48 2,80 10,05 2,94 9,68 3,19 9,44 3,35 9,37 3,57 8,88 3,97 8,58 4,21 8,03 4,59

15 10,91 2,80 10,42 2,95 10,05 3,22 9,80 3,39 9,62 3,62 9,19 4,02 9,01 4,29 8,54 4,67

12 M

5

12,63 3,36 12,08 3,48 11,60 3,81 11,09 4,02 11,01 4,24 9,76 4,70 9,18 4,98 8,60 5,28

6 12,90 3,37 12,33 3,50 11,90 3,82 11,50 4,04 11,38 4,25 10,38 4,71 9,72 4,99 8,85 5,32

7 13,40 3,39 12,99 3,52 12,43 3,84 11,92 4,05 11,75 4,27 11,01 4,73 10,26 5,01 9,18 5,34

8 13,55 3,44 12,83 3,59 12,55 3,87 12,16 4,07 12,08 4,30 11,34 4,77 10,59 5,05 9,60 5,36

10 13,74 3,44 13,07 3,61 12,74 3,91 12,41 4,10 12,41 4,35 11,67 4,83 11,09 5,11 10,10 5,40

12 14,15 3,46 13,57 3,62 13,07 3,94 12,74 4,14 12,66 4,40 12,00 4,90 11,58 5,20 10,84 5,44

15 14,73 3,46 14,07 3,64 13,57 3,97 13,24 4,19 12,99 4,47 12,41 4,97 12,16 5,30 11,53 5,52

12 T

5

12,90 3,27 12,34 3,39 11,85 3,71 11,32 3,92 11,24 4,13 9,97 4,58 9,38 4,85 8,78 5,14

6 13,17 3,28 12,59 3,41 12,15 3,72 11,75 3,93 11,62 4,14 10,61 4,59 9,93 4,86 9,04 5,18

7 13,69 3,30 13,27 3,43 12,69 3,74 12,17 3,95 12,00 4,16 11,24 4,61 10,48 4,89 9,38 5,20

8 13,84 3,35 13,10 3,50 12,82 3,77 12,42 3,97 12,34 4,19 11,58 4,64 10,82 4,92 9,80 5,22

10 14,03 3,35 13,35 3,52 13,01 3,81 12,68 4,00 12,68 4,24 11,92 4,71 11,32 4,98 10,31 5,26

12 14,45 3,37 13,86 3,53 13,35 3,84 13,01 4,03 12,93 4,29 12,25 4,77 11,83 5,06 11,07 5,30

15 15,04 3,37 14,37 3,55 13,86 3,87 13,52 4,08 13,27 4,35 12,68 4,84 12,42 5,16 11,78 5,38

15 T

5

14,83 4,30 14,19 4,46 13,62 4,88 13,02 5,15 12,93 5,43 11,47 6,02 10,79 6,38 10,10 6,76

6 15,15 4,32 14,48 4,48 13,98 4,90 13,51 5,17 13,36 5,45 12,20 6,03 11,42 6,39 10,40 6,82

7 15,74 4,34 15,26 4,51 14,60 4,92 13,99 5,19 13,80 5,47 12,93 6,06 12,05 6,42 10,79 6,84

8 15,91 4,41 15,06 4,60 14,74 4,96 14,29 5,22 14,19 5,51 13,31 6,11 12,44 6,47 11,27 6,87

10 16,13 4,41 15,35 4,62 14,97 5,00 14,58 5,26 14,58 5,58 13,70 6,19 13,02 6,55 11,86 6,92

12 16,62 4,43 15,94 4,64 15,35 5,05 14,97 5,30 14,87 5,64 14,09 6,28 13,61 6,66 12,73 6,97

15 17,30 4,43 16,52 4,66 15,94 5,09 15,55 5,36 15,26 5,72 14,58 6,36 14,29 6,78 13,55 7,07

1 Installation manual

1.7 Cooling capacities YLHA

24

YLHA
PLUS

Water

outlet
temp

°C

Outdoor ambient temperature °C DB (80% RH)

20 25 30 32 35 40 43 46

Cap.

Abs.

power

Cap.

Abs.

power

Cap.

Abs.

power

Cap.

Abs.

power

Cap.

Abs.

power

Cap.

Abs.

power

Cap.

Abs.

power

Cap.

Abs.

power

kW kW kW kW kW kW kW kW kW kW kW kW kW kW kW kW

20 T

5

21,00 5,36 20,83 5,69 20,09 5,96 19,74 6,19 19,16 6,67 17,06 7,35 16,29 7,83 14,21 8,35

6 22,24 5,39 21,68 5,75 20,88 6,02 20,45 6,25 19,80 7,00 17,97 7,40 17,12 7,93 16,20 8,40

7 23,17 5,43 22,58 5,80 21,67 6,08 21,21 6,30 19,40 7,04 18,87 7,46 17,91 8,05 16,97 8,45

8 23,89 5,46 23,25 5,83 22,30 6,14 21,73 6,36 20,86 7,08 19,31 7,52 18,27 8,11 17,26 8,50

10 25,30 5,54 24,60 5,89 23,53 6,20 22,88 6,42 21,88 7,11 20,38 7,58 19,22 8,17 18,12 8,55

12 26,79 5,60 25,99 5,93 24,79 6,23 24,02 6,46 22,94 7,11 21,39 7,64 20,14 8,23 18,92 8,60

15 29,24 5,69 28,04 6,01 26,64 6,30 25,75 6,53 24,54 7,15 23,05 7,72 21,62 8,27 20,30 8,70

27 T

5

28,29 6,97 27,71 7,17 26,71 7,51 26,26 7,80 25,49 8,78 22,69 9,26 21,67 9,87 20,49 10,60

6 29,58 7,01 28,84 7,25 27,77 7,58 27,19 7,87 26,33 8,82 23,90 9,33 22,77 10,00 21,55 10,71

7 30,82 7,09 30,03 7,31 28,82 7,66 28,20 7,94 25,80 8,87 25,09 9,40 23,82 10,14 22,57 10,86

8 31,77 7,12 30,92 7,34 29,66 7,73 28,90 8,01 27,74 8,92 25,68 9,47 24,30 10,22 22,95 10,98

10 33,64 7,20 32,72 7,43 31,30 7,81 30,43 8,09 29,10 8,96 27,11 9,55 25,56 10,30 24,10 11,06

12 35,63 7,23 34,57 7,47 32,96 7,85 31,94 8,13 30,50 8,96 28,45 9,63 26,79 10,37 25,16 11,14

15 38,52 7,33 37,30 7,57 35,43 7,94 34,25 8,23 32,63 9,01 30,65 9,73 28,75 10,41 26,95 11,22

Abs. power = Includes compressor and fan consumption.

Installation manual

1

Cooling capacities YLHA 1.7

25

1.7.2 Cooling capacities YLHA 5 ÷ 27 (35% ethylene glycol)

YLHA
PLUS

Water
outlet

temp

°C

Outdoor ambient temperature °C DB (80% RH)

20 25 30 32 35 40 43 46

Cap.

Abs.

power

Cap.

Abs.

power

Cap.

Abs.

power

Cap.

Abs.

power

Cap.

Abs.

power

Cap.

Abs.

power

Cap.

Abs.

power

Cap.

Abs.

power

kW kW kW kW kW kW kW kW kW kW kW kW kW kW kW kW

5 M

-5 3,62 1,15 3,46 1,24 3,29 1,35 3,21 1,40 3,10 1,47 2,84 1,61 2,69 1,69 2,54 1,78

-4 3,81 1,17 3,64 1,27 3,45 1,38 3,37 1,43 3,25 1,50 2,98 1,64 2,82 1,73 2,65 1,83

-2 4,16 1,23 4,00 1,33 3,78 1,45 3,70 1,50 3,56 1,57 3,27 1,72 3,09 1,81 2,89 1,91

0 4,51 1,29 4,38 1,39 4,16 1,51 4,04 1,56 3,89 1,64 3,57 1,80 3,38 1,89 3,13 1,99

2 5,00 1,35 4,77 1,45 4,53 1,58 4,41 1,63 4,25 1,72 3,90 1,88 3,69 1,97 3,48 2,06

4 5,35 1,40 5,16 1,52 4,90 1,65 4,79 1,70 4,61 1,79 4,23 1,96 4,00 2,06 3,78 2,18

7 M

-5 4,76 1,55 4,54 1,68 4,33 1,83 4,23 1,89 4,07 1,98 3,73 2,17 3,53 2,28 3,34 2,40

-4 5,01 1,59 4,79 1,72 4,53 1,87 4,43 1,93 4,27 2,03 3,91 2,22 3,70 2,33 3,48 2,48

-2 5,47 1,66 5,26 1,80 4,97 1,96 4,86 2,02 4,68 2,12 4,30 2,32 4,06 2,44 3,80 2,58

0 5,93 1,74 5,75 1,88 5,47 2,04 5,31 2,11 5,12 2,22 4,70 2,43 4,44 2,55 4,12 2,68

2 6,57 1,82 6,27 1,96 5,95 2,13 5,80 2,20 5,59 2,32 5,13 2,54 4,85 2,67 4,58 2,79

4 7,03 1,90 6,78 2,05 6,44 2,22 6,29 2,30 6,06 2,42 5,56 2,65 5,26 2,78 4,97 2,94

9 M

-5 5,83 2,08 5,57 2,25 5,30 2,45 5,18 2,53 4,99 2,66 4,58 2,91 4,33 3,06 4,09 3,22

-4 6,13 2,13 5,86 2,30 5,56 2,51 5,43 2,59 5,23 2,72 4,79 2,98 4,54 3,13 4,26 3,32

-2 6,70 2,23 6,45 2,41 6,09 2,62 5,95 2,71 5,74 2,85 5,26 3,11 4,98 3,27 4,65 3,46

0 7,26 2,34 7,05 2,52 6,70 2,74 6,51 2,83 6,27 2,98 5,76 3,26 5,44 3,43 5,05 3,60

2 8,05 2,44 7,68 2,63 7,30 2,86 7,11 2,96 6,85 3,11 6,28 3,40 5,94 3,58 5,61 3,74

4 8,61 2,54 8,31 2,74 7,89 2,98 7,71 3,08 7,43 3,24 6,81 3,55 6,45 3,73 6,09 3,94

9 T

-5 5,83 2,08 5,57 2,25 5,30 2,45 5,18 2,53 4,99 2,66 4,58 2,91 4,33 3,06 4,09 3,22

-4 6,13 2,13 5,86 2,30 5,56 2,51 5,43 2,59 5,23 2,72 4,79 2,98 4,54 3,13 4,26 3,32

-2 6,70 2,23 6,45 2,41 6,09 2,62 5,95 2,71 5,74 2,85 5,26 3,11 4,98 3,27 4,65 3,46

0 7,26 2,34 7,05 2,52 6,70 2,74 6,51 2,83 6,27 2,98 5,76 3,26 5,44 3,43 5,05 3,60

2 8,05 2,44 7,68 2,63 7,30 2,86 7,11 2,96 6,85 3,11 6,28 3,40 5,94 3,58 5,61 3,74

4 8,61 2,54 8,31 2,74 7,89 2,98 7,71 3,08 7,43 3,24 6,81 3,55 6,45 3,73 6,09 3,94

12 M

-5 7,87 2,56 7,52 2,78 7,16 3,02 6,99 3,12 6,74 3,28 6,18 3,59 5,85 3,77 5,52 3,97

-4 8,28 2,63 7,92 2,84 7,50 3,09 7,33 3,19 7,06 3,36 6,48 3,67 6,13 3,86 5,76 4,10

-2 9,05 2,75 8,71 2,97 8,23 3,24 8,04 3,34 7,75 3,52 7,11 3,84 6,72 4,04 6,29 4,27

0 9,81 2,88 9,52 3,11 9,05 3,38 8,79 3,49 8,47 3,67 7,77 4,02 7,35 4,23 6,82 4,44

2 10,87 3,01 10,37 3,25 9,85 3,53 9,60 3,65 9,25 3,84 8,49 4,20 8,03 4,41 7,58 4,61

4 11,63 3,14 11,22 3,39 10,66 3,68 10,41 3,80 10,03 4,00 9,20 4,38 8,71 4,60 8,23 4,87

12 T

-5 8,04 2,50 7,68 2,71 7,31 2,94 7,14 3,04 6,88 3,20 6,31 3,50 5,97 3,67 5,64 3,87

-4 8,46 2,56 8,09 2,77 7,66 3,01 7,49 3,11 7,21 3,27 6,61 3,58 6,26 3,76 5,88 3,99

-2 9,24 2,68 8,89 2,89 8,41 3,15 8,21 3,26 7,91 3,43 7,26 3,74 6,86 3,94 6,42 4,16

0 10,02 2,81 9,72 3,03 9,24 3,29 8,98 3,40 8,65 3,58 7,94 3,92 7,50 4,12 6,96 4,33

2 11,10 2,93 10,59 3,16 10,06 3,44 9,81 3,56 9,45 3,74 8,67 4,09 8,20 4,30 7,74 4,49

4 11,88 3,06 11,46 3,30 10,89 3,59 10,64 3,71 10,25 3,90 9,40 4,26 8,89 4,48 8,40 4,74

15 T

-5 9,25 3,28 8,83 3,56 8,41 3,87 8,21 4,00 7,91 4,21 7,26 4,60 6,87 4,83 6,49 5,09

-4 9,73 3,36 9,30 3,64 8,81 3,96 8,61 4,09 8,29 4,30 7,61 4,71 7,20 4,95 6,76 5,25

-2 10,63 3,53 10,22 3,81 9,67 4,15 9,44 4,28 9,10 4,50 8,35 4,92 7,89 5,18 7,38 5,47

0 11,52 3,69 11,18 3,98 10,63 4,33 10,33 4,48 9,95 4,71 9,13 5,15 8,63 5,41 8,00 5,69

2 12,77 3,86 12,18 4,16 11,57 4,52 11,28 4,67 10,87 4,92 9,97 5,38 9,43 5,65 8,90 5,91

4 13,66 4,02 13,18 4,34 12,52 4,72 12,23 4,87 11,78 5,13 10,81 5,61 10,22 5,89 9,66 6,24

20 T

-5 13,00 4,22 12,42 4,58 11,82 4,98 11,55 5,15 11,12 5,41 10,20 5,92 9,65 6,22 9,12 6,55

-4 13,68 4,33 13,08 4,69 12,39 5,10 12,10 5,27 11,66 5,54 10,69 6,06 10,12 6,37 9,51 6,76

-2 14,94 4,54 14,37 4,90 13,59 5,34 13,28 5,51 12,79 5,80 11,74 6,33 11,10 6,66 10,38 7,04

0 16,20 4,75 15,72 5,12 14,94 5,57 14,52 5,76 13,98 6,06 12,83 6,63 12,13 6,97 11,25 7,32

2 17,95 4,96 17,12 5,35 16,27 5,82 15,86 6,02 15,27 6,33 14,01 6,92 13,25 7,28 12,51 7,60

4 19,21 5,17 18,53 5,58 17,60 6,07 17,19 6,27 16,57 6,60 15,20 7,22 14,37 7,58 13,58 8,03

27 T

-5 17,29 5,32 16,51 5,77 15,72 6,28 15,36 6,48 14,79 6,82 13,57 7,45 12,84 7,83 12,13 8,25

-4 18,19 5,46 17,39 5,90 16,48 6,43 16,09 6,63 15,50 6,98 14,22 7,63 13,46 8,02 12,64 8,52

-2 19,87 5,72 19,12 6,17 18,07 6,72 17,66 6,95 17,01 7,30 15,61 7,98 14,76 8,39 13,80 8,87

0 21,54 5,99 20,90 6,45 19,87 7,02 19,31 7,26 18,59 7,63 17,07 8,35 16,13 8,78 14,96 9,22

2 23,87 6,25 22,77 6,75 21,64 7,33 21,09 7,58 20,31 7,98 18,64 8,72 17,62 9,17 16,64 9,58

4 25,54 6,52 24,64 7,04 23,40 7,65 22,87 7,90 22,03 8,32 20,21 9,09 19,12 9,56 18,06 10,11

1 Installation manual

1.7 Cooling capacities YLHA

26

Abs. power = Includes compressor and fan consumption.

1.7.3 Heating capacities YLHA 5 ÷ 27

YLHA
PLUS

Wa‐

ter

outlet

temp

°C

Outdoor ambient temperature °C DB (80% RH)

-15 -10 -7 0 5 7 10 15 20

Cap.

Abs.
pow‐erCap.

Abs.
pow‐erCap.

Abs.
pow‐erCap.

Abs.
pow‐erCap.

Abs.
pow‐erCap.

Abs.
pow‐erCap.

Abs.
pow‐erCap.

Abs.
pow‐erCap.

Abs.
pow‐

er

kW kW kW kW kW kW kW kW kW kW kW kW kW kW kW kW kW kW

5 M

30 1,60 1,40 1,69 1,41 2,48 1,42 4,30 1,43 5,32 1,43 6,46 1,44 6,74 1,45 7,58 1,45 7,85 1,46

35 1,51 1,35 1,89 1,55 2,40 1,56 4,25 1,57 5,28 1,58 6,40 1,60 6,62 1,60 7,52 1,61 7,63 1,62

40 - - 2,04 1,72 2,35 1,72 4,20 1,73 5,24 1,74 6,35 1,75 6,46 1,75 7,45 1,76 7,45 1,77

45 - - - - 2,32 1,91 4,15 1,88 5,19 1,89 6,30 1,90 6,45 1,91 7,39 1,92 7,32 1,92

50 - - - - - - 4,10 2,00 5,11 2,02 6,25 2,03 6,43 2,05 6,85 2,06 7,19 2,08

7 M

30 1,82 1,82 2,84 1,85 4,10 1,93 5,06 1,85 6,00 1,86 7,29 1,87 7,60 1,88 8,54 1,89 8,85 1,90

35 1,70 1,75 2,83 2,03 3,87 2,11 4,95 2,04 5,95 2,06 7,21 2,07 7,46 2,08 8,47 2,09 8,60 2,10

40 - - 2,81 2,21 3,76 2,23 4,85 2,25 5,90 2,26 7,16 2,27 7,29 2,28 8,40 2,29 8,40 2,30

45 - - - - 3,59 2,45 4,77 2,45 5,85 2,46 7,10 2,47 7,27 2,48 8,32 2,49 8,25 2,50

50 - - - - - - 4,65 2,60 5,75 2,62 7,04 2,64 7,25 2,66 7,72 2,68 8,10 2,70

9 M

30 2,41 2,00 3,52 2,05 5,09 2,13 6,69 2,20 8,04 2,20 9,77 2,21 10,19 2,22 11,46 2,23 12,28 2,25

35 2,28 2,20 3,51 2,23 4,81 2,33 6,58 2,46 7,98 2,48 9,67 2,49 10,00 2,50 11,36 2,52 12,05 2,53

40 - - 3,49 2,43 4,67 2,54 6,46 2,72 7,91 2,76 9,59 2,77 9,77 2,78 11,26 2,80 11,81 2,81

45 - - - - 4,45 2,74 6,34 2,97 7,85 3,09 9,52 3,15 9,74 3,16 11,16 3,18 11,58 3,18

50 - - - - - - 6,22 3,20 7,71 3,21 9,45 3,31 9,72 3,32 10,36 3,33 11,42 3,35

9 T

30 2,41 2,00 3,52 2,05 5,09 2,13 6,69 2,20 8,04 2,20 9,77 2,21 10,19 2,22 11,46 2,23 12,28 2,25

35 2,28 2,20 3,51 2,23 4,81 2,33 6,58 2,46 7,98 2,48 9,67 2,49 10,00 2,50 11,36 2,52 12,05 2,53

40 - - 3,49 2,43 4,67 2,54 6,46 2,72 7,91 2,76 9,59 2,77 9,77 2,78 11,26 2,80 11,81 2,81

45 - - - - 4,45 2,74 6,34 2,97 7,85 3,09 9,52 3,15 9,74 3,16 11,16 3,18 11,58 3,18

50 - - - - - - 6,22 3,20 7,71 3,21 9,45 3,31 9,72 3,32 10,36 3,33 11,42 3,35

12 M

30 3,11 2,40 4,75 2,50 6,78 2,60 8,20 2,72 10,35 2,74 12,57 2,75 13,11 2,76 14,74 2,78 15,80 2,80

35 2,93 2,70 4,73 2,80 6,41 2,90 8,06 3,08 10,26 3,09 12,44 3,10 12,86 3,11 14,62 3,13 15,50 3,15

40 - - 4,71 3,00 6,24 3,10 7,90 3,42 10,18 3,44 12,35 3,45 12,57 3,46 14,49 3,48 15,20 3,50

45 - - - - 5,95 3,40 7,80 3,70 10,10 3,85 12,25 3,92 12,54 3,94 14,36 3,95 14,90 3,96

50 - - - - - - 7,70 3,90 9,93 4,00 12,15 4,12 12,51 4,13 13,33 4,15 14,70 4,17

12 T

30 3,15 2,86 3,66 2,86 5,08 2,87 8,33 2,88 10,51 2,90 12,77 2,91 13,31 2,92 14,97 2,94 16,05 2,96

35 2,98 3,23 3,45 3,24 4,77 3,33 8,19 3,26 10,42 3,27 12,64 3,28 13,06 3,29 14,84 3,31 15,74 3,33

40 - - 3,25 3,49 4,57 3,49 8,02 3,62 10,34 3,64 12,54 3,65 12,77 3,66 14,71 3,68 15,44 3,71

45 - - - - 4,27 3,65 7,92 3,92 10,25 4,08 12,44 4,15 12,73 4,17 14,58 4,18 15,13 4,19

50 - - - - - - 7,82 4,13 10,08 4,23 12,34 4,36 12,70 4,37 13,53 4,39 14,93 4,41

15 T

30 4,08 3,50 6,05 3,56 8,75 3,57 10,78 3,58 13,60 3,61 16,52 3,62 17,23 3,63 19,38 3,66 20,77 3,69

35 3,85 3,80 6,02 3,87 8,26 4,03 10,59 4,05 13,49 4,07 16,35 4,08 16,91 4,09 19,21 4,12 20,37 4,15

40 - - 6,00 4,22 8,02 4,41 10,38 4,50 13,38 4,53 16,23 4,54 16,52 4,55 19,04 4,58 19,98 4,61

45 - - - - 7,65 4,75 10,25 4,87 13,27 5,07 16,10 5,16 16,48 5,18 18,88 5,20 19,58 5,21

50 - - - - - - 10,12 5,13 13,05 5,27 15,97 5,42 16,44 5,44 17,52 5,46 19,32 5,49

20 T

30 8,55 4,25 10,29 4,32 14,87 4,48 18,60 4,80 19,40 4,85 20,66 4,90 22,81 4,56 25,15 4,65 26,30 4,77

35 8,30 4,70 9,68 4,77 13,27 4,97 18,15 5,26 19,26 5,32 20,49 5,41 22,63 5,60 24,94 5,99 25,87 5,25

40 - - 9,08 5,27 12,15 5,50 16,80 5,90 18,48 5,96 20,31 6,04 22,45 6,12 24,72 6,57 25,45 5,75

45 - - - - 10,82 5,99 15,41 6,49 17,78 6,56 20,14 6,60 22,23 6,46 24,50 6,50 25,02 6,55

50 - - - - - - 14,09 7,00 16,92 7,05 19,79 7,10 21,37 6,57 22,74 6,62 24,60 6,72

27 T

30 11,25 5,20 13,43 5,35 19,42 5,83 23,80 6,15 25,17 6,25 26,98 6,38 30,01 5,91 33,09 6,03 35,90 6,25

35 10,92 5,90 12,94 6,04 17,32 6,47 23,50 6,85 25,12 6,92 26,75 7,04 29,78 7,26 32,81 7,77 34,80 6,80

40 - - 12,45 6,73 15,87 7,16 21,94 7,68 24,21 7,76 26,53 7,86 29,54 7,93 32,53 8,52 34,00 7,45

45 - - - - 14,86 7,73 20,12 8,45 23,23 8,54 26,30 8,59 29,25 8,37 32,24 8,42 33,50 8,49

50 - - - - - - 18,41 9,11 22,12 9,18 25,85 9,24 28,12 8,51 29,92 8,58 32,80 9,15

Integrated heating capacity includes the defrost cycles

Abs. power = Includes compressor and fan consumption.

Installation manual

1

Cooling capacities YLHA 1.7

27

1.8 Cooling capacity YLCA

1.8.1 Cooling capacities YLCA 5 ÷ 27

YLCA

Water

outlet

temp °C

Outdoor ambient temperature °C DB (80% RH)

20 25 30 32 35 40 43 46

Cap. Unit Cap. Unit Cap. Unit Cap. Unit Cap. Unit Cap. Unit Cap. Unit Cap. Unit

kW kW kW kW kW kW kW kW kW kW kW kW kW kW kW kW

5

5

5,71 1,59 5,55 1,63 5,31 1,70 5,18 1,76 4,99 1,85 4,41 2,06 4,18 2,18 3,92 2,33

6 5,93 1,59 5,76 1,64 5,52 1,71 5,38 1,77 5,18 1,86 4,68 2,07 4,43 2,21 4,18 2,35

7 6,15 1,60 5,98 1,65 5,73 1,72 5,59 1,77 5,38 1,87 4,95 2,08 4,69 2,23 4,44 2,38

8 6,31 1,60 6,14 1,65 5,89 1,73 5,74 1,78 5,53 1,88 5,11 2,09 4,84 2,24 4,58 2,39

10 6,65 1,61 6,48 1,66 6,21 1,74 6,06 1,79 5,83 1,89 5,44 2,10 5,15 2,25 4,88 2,40

12 6,99 1,61 6,82 1,66 6,54 1,74 6,38 1,79 6,14 1,89 5,76 2,11 5,46 2,26 5,17 2,41

15 7,50 1,62 7,33 1,67 7,03 1,75 6,86 1,80 6,60 1,90 6,26 2,12 5,93 2,26 5,62 2,42

7

5

7,11 2,18 6,99 2,24 6,69 2,32 6,66 2,40 6,28 2,53 5,49 2,86 5,21 3,04 4,78 3,27

6 7,39 2,18 7,25 2,24 6,95 2,33 6,92 2,41 6,52 2,54 5,83 2,87 5,52 3,07 5,10 3,29

7 7,58 2,19 7,50 2,27 7,22 2,35 7,19 2,42 7,13 2,58 6,17 2,88 5,84 3,11 5,41 3,33

8 7,86 2,19 7,73 2,27 7,42 2,36 7,38 2,44 7,29 2,59 6,37 2,90 6,03 3,12 5,58 3,36

10 8,28 2,20 8,16 2,27 7,82 2,37 7,79 2,45 7,45 2,60 6,78 2,91 6,42 3,14 5,95 3,37

12 8,71 2,20 8,59 2,28 8,23 2,37 8,20 2,45 7,73 2,61 7,18 2,92 6,80 3,15 6,30 3,39

15 9,34 2,22 9,23 2,28 8,85 2,38 8,82 2,46 8,31 2,62 7,80 2,94 7,39 3,15 6,85 3,40

9

5

8,61 2,60 8,80 2,89 8,33 2,99 8,06 3,09 7,60 3,30 6,65 3,69 6,30 3,93 5,78 4,22

6 8,94 2,61 9,13 2,90 8,66 3,01 8,37 3,11 7,89 3,31 7,06 3,71 6,68 3,94 6,17 4,24

7 9,86 2,62 9,44 2,91 8,99 3,03 8,70 3,13 8,63 3,33 7,46 3,72 7,07 3,95 6,55 4,26

8 9,51 2,63 9,73 2,92 9,24 3,04 8,93 3,15 8,81 3,35 7,71 3,73 7,30 3,96 6,76 4,28

10 10,03 2,66 10,27 2,94 9,74 3,05 9,43 3,19 9,00 3,37 8,20 3,75 7,77 3,98 7,20 4,32

12 10,54 2,68 10,81 2,96 10,26 3,06 9,93 3,23 9,36 3,39 8,69 3,77 8,23 4,00 7,63 4,36

15 11,31 2,71 11,62 2,99 11,02 3,08 10,67 3,29 10,06 3,45 9,44 3,80 8,94 4,07 8,47 4,39

12

5

12,37 3,06 12,15 3,43 11,63 3,80 11,58 3,88 10,93 4,13 9,55 4,62 9,06 4,92 8,31 5,28

6 12,85 3,08 12,61 3,45 12,09 3,82 12,03 3,90 11,34 4,15 10,14 4,64 9,60 4,97 8,86 5,30

7 13,78 3,10 13,49 3,47 12,97 3,84 12,50 3,92 12,40 4,17 10,72 4,66 10,16 5,03 9,41 5,32

8 14,03 3,12 13,82 3,49 13,15 3,86 12,83 3,94 12,65 4,19 11,07 4,68 10,49 5,05 9,71 5,34

10 14,41 3,16 14,19 3,53 13,60 3,90 13,55 3,96 12,90 4,21 11,79 4,70 11,16 5,07 10,35 5,36

12 15,14 3,20 14,93 3,57 14,32 3,92 14,26 3,96 13,44 4,22 12,48 4,73 11,83 5,09 10,96 5,38

15 16,25 3,26 16,05 3,63 15,39 3,95 15,34 3,98 14,45 4,23 13,56 4,75 12,85 5,11 11,54 5,40

15

5

14,47 4,54 14,21 4,67 13,60 4,84 13,54 5,00 12,78 5,33 11,17 5,96 10,59 6,35 9,72 6,81

6 15,02 4,56 14,75 4,69 14,13 4,86 14,07 5,03 13,26 5,35 11,86 5,99 11,22 6,41 10,36 6,87

7 15,42 4,57 15,25 4,71 14,68 4,89 14,61 5,05 14,50 5,38 12,54 6,01 11,88 6,19 11,01 6,95

8 15,99 4,59 15,72 4,72 15,08 4,92 15,01 5,08 14,16 5,41 12,95 6,04 12,26 6,52 11,36 7,01

10 16,85 4,59 16,59 4,73 15,90 4,95 15,84 5,11 14,93 5,43 13,78 6,07 13,05 6,54 12,10 7,03

12 17,71 4,61 17,46 4,75 16,75 4,97 16,68 5,11 15,72 5,44 14,59 6,10 13,83 6,57 12,82 7,06

15 19,00 4,62 18,77 4,76 18,00 5,00 17,93 5,14 16,90 5,46 15,86 6,12 15,02 6,60 13,94 7,09

20

5

21,41 5,45 20,97 5,61 20,22 5,87 19,88 6,10 19,29 6,87 17,18 7,24 16,40 7,72 15,51 8,29

6 22,39 5,48 21,93 5,67 21,02 5,93 20,58 6,16 19,40 6,90 18,90 7,30 17,24 7,82 16,31 8,38

7 23,33 5,54 22,73 5,72 21,82 5,99 21,35 6,21 19,52 6,94 18,99 7,36 18,03 7,94 17,08 8,50

8 24,05 5,57 23,40 5,75 22,45 6,05 21,88 6,27 21,00 6,98 18,44 7,41 18,40 8,00 17,37 8,59

10 25,47 5,64 24,77 5,81 23,69 6,11 23,03 6,33 22,03 7,01 20,52 7,47 19,35 8,06 18,25 8,66

12 26,97 5,65 26,17 5,85 24,95 6,14 24,18 6,36 23,09 7,01 21,54 7,54 20,28 8,11 19,05 8,72

15 29,16 5,74 28,23 5,92 26,82 6,21 25,92 6,44 24,70 7,05 23,20 7,61 21,76 8,15 20,40 8,78

27

5

28,60 6,90 27,49 7,53 25,77 8,17 26,05 8,64 24,28 8,99 22,52 9,48 21,50 10,10 19,60 10,97

6 30,03 7,00 28,61 7,58 26,81 8,24 26,98 8,71 24,94 9,03 23,72 9,55 22,60 10,23 21,38 11,02

7 30,62 7,11 29,32 7,63 27,63 8,33 27,98 8,78 25,60 9,08 24,90 9,62 23,63 10,39 22,39 11,07

8 32,21 7,22 30,68 7,76 28,69 8,53 28,68 8,86 27,52 9,18 25,48 9,70 24,11 10,46 22,77 11,12

10 34,07 7,30 32,47 7,84 30,32 8,61 30,19 8,93 28,88 9,28 26,90 9,77 25,36 10,54 23,92 11,22

12 36,04 7,42 34,30 7,89 31,97 8,65 31,69 8,98 30,27 9,43 28,23 9,86 26,58 10,62 24,97 11,32

15 38,59 7,54 37,01 7,99 34,42 8,74 33,98 9,08 32,38 9,58 30,41 9,96 28,53 10,66 26,96 11,47

1 Installation manual

1.8 Cooling capacity YLCA

28

1.8.2 Cooling capacities YLCA 5 ÷ 27 (35% ethylene glycol)

YLCA

Water

outlet
temp

°C

Outdoor ambient temperature °C DB (80% RH)

20 25 30 32 35 40 43 46

Cap. Unit Cap. Unit Cap. Unit Cap. Unit Cap. Unit Cap. Unit Cap. Unit Cap. Unit

kW kW kW kW kW kW kW kW kW kW kW kW kW kW kW kW

5

-5 3,60 1,12 3,44 1,22 3,28 1,32 3,20 1,37 3,08 1,44 2,83 1,57 2,68 1,65 2,53 1,74

-4 3,79 1,15 3,63 1,24 3,44 1,35 3,36 1,40 3,23 1,47 2,97 1,61 2,81 1,69 2,64 1,80

-2 4,14 1,21 3,99 1,30 3,77 1,42 3,68 1,46 3,55 1,54 3,25 1,68 3,08 1,77 2,88 1,87

0 4,49 1,26 4,36 1,36 4,14 1,48 4,03 1,53 3,88 1,61 3,56 1,76 3,36 1,85 3,12 1,94

2 4,98 1,32 4,75 1,42 4,51 1,55 4,40 1,60 4,24 1,68 3,89 1,84 3,67 1,93 3,47 2,02

4 5,33 1,37 5,14 1,48 4,88 1,61 4,77 1,67 4,59 1,75 4,21 1,92 3,99 2,01 3,77 2,13

7

-5 4,49 1,53 4,34 1,66 4,13 1,81 4,12 1,87 3,88 1,96 3,52 2,18 3,34 2,30 3,08 2,44

-4 4,73 1,57 4,57 1,70 4,33 1,85 4,31 1,91 4,07 2,01 3,69 2,23 3,50 2,36 3,21 2,52

-2 5,16 1,65 5,02 1,78 4,75 1,94 4,73 2,00 4,47 2,10 4,05 2,33 3,83 2,47 3,51 2,62

0 5,60 1,72 5,49 1,86 5,22 2,02 5,18 2,09 4,88 2,20 4,43 2,44 4,19 2,58 3,80 2,73

2 6,20 1,80 5,98 1,94 5,68 2,11 5,65 2,18 5,33 2,30 4,84 2,55 4,58 2,69 4,23 2,83

4 6,64 1,88 6,47 2,03 6,14 2,20 6,13 2,28 5,78 2,40 5,25 2,66 4,97 2,81 4,59 2,99

9

-5 5,78 2,00 5,52 2,17 5,26 2,36 5,14 2,43 4,95 2,56 4,54 2,80 4,29 2,94 4,06 3,10

-4 6,08 2,05 5,82 2,22 5,51 2,41 5,38 2,49 5,19 2,62 4,76 2,87 4,50 3,01 4,23 3,20

-2 6,65 2,15 6,39 2,32 6,05 2,52 5,91 2,61 5,69 2,74 5,22 2,99 4,94 3,15 4,62 3,33

0 7,21 2,25 6,99 2,42 6,65 2,64 6,46 2,73 6,22 2,87 5,71 3,13 5,40 3,30 5,01 3,46

2 7,98 2,35 7,62 2,53 7,24 2,75 7,05 2,85 6,79 2,99 6,23 3,27 5,89 3,44 5,57 3,60

4 8,54 2,45 8,24 2,64 7,83 2,87 7,65 2,97 7,37 3,12 6,76 3,41 6,39 3,59 6,04 3,80

12

-5 8,31 2,50 7,94 2,71 7,56 2,95 7,38 3,05 7,11 3,21 6,52 3,50 6,17 3,68 5,83 3,88

-4 8,74 2,56 8,36 2,78 7,92 3,02 7,74 3,12 7,45 3,28 6,83 3,59 6,47 3,77 6,08 4,00

-2 9,55 2,69 9,19 2,90 8,69 3,16 8,49 3,27 8,18 3,43 7,50 3,75 7,09 3,95 6,63 4,17

0 10,35 2,81 10,05 3,03 9,55 3,30 9,28 3,41 8,94 3,59 8,20 3,92 7,75 4,13 7,19 4,34

2 11,47 2,94 10,94 3,17 10,40 3,45 10,13 3,56 9,76 3,75 8,96 4,10 8,47 4,31 8,00 4,50

4 12,28 3,06 11,84 3,31 11,25 3,60 10,99 3,71 10,59 3,91 9,71 4,28 9,19 4,49 8,68 4,75

15

-5 9,72 3,23 9,28 3,50 8,84 3,81 8,63 3,93 8,31 4,14 7,63 4,52 7,22 4,75 6,82 5,00

-4 10,22 3,31 9,77 3,58 9,26 3,90 9,05 4,02 8,71 4,23 7,99 4,63 7,56 4,86 7,11 5,16

-2 11,17 3,47 10,74 3,74 10,16 4,08 9,92 4,21 9,56 4,43 8,77 4,84 8,29 5,09 7,76 5,38

0 12,11 3,63 11,75 3,92 11,17 4,26 10,85 4,40 10,45 4,63 9,59 5,06 9,06 5,33 8,41 5,60

2 13,41 3,79 12,80 4,09 12,16 4,45 11,85 4,60 11,42 4,84 10,47 5,29 9,90 5,56 9,35 5,81

4 14,36 3,95 13,85 4,27 13,15 4,64 12,85 4,79 12,38 5,05 11,36 5,52 10,74 5,80 10,15 6,13

20

-5 13,61 3,86 13,05 4,20 12,48 4,60 12,25 4,77 11,74 5,34 10,94 5,54 10,42 5,85 9,87 6,21

-4 14,39 3,98 13,78 4,31 13,08 4,73 12,82 4,89 11,87 5,46 11,38 5,69 10,79 6,01 10,14 6,42

-2 15,79 4,19 15,19 4,53 14,37 4,97 14,03 5,15 13,47 5,72 12,38 5,97 11,70 6,31 10,92 6,71

0 17,20 4,41 16,66 4,76 15,81 5,21 15,30 5,40 14,65 5,97 13,42 6,26 12,64 6,62 11,67 7,00

2 19,20 4,62 18,22 5,01 17,21 5,47 16,66 5,67 15,93 6,24 14,53 6,57 13,65 6,94 12,79 7,29

4 20,71 4,86 19,79 5,26 18,62 5,74 18,02 5,95 17,20 6,51 15,62 6,89 14,63 7,26 13,67 7,72

27

-5 17,84 5,05 17,10 5,50 16,36 6,01 16,06 6,24 15,56 6,98 14,34 7,25 13,66 7,66 12,93 8,12

-4 18,86 5,20 18,07 5,64 17,15 6,18 16,80 6,40 16,61 7,14 14,91 7,45 14,14 7,87 13,30 8,40

-2 20,70 5,49 19,92 5,93 18,83 6,50 18,40 6,73 17,66 7,48 16,23 7,81 15,33 8,26 14,31 8,78

0 22,55 5,77 21,84 6,23 20,72 6,81 20,06 7,07 19,21 7,81 17,60 8,20 16,56 8,66 15,29 9,16

2 25,17 6,05 23,88 6,55 22,56 7,16 21,84 7,42 20,88 8,16 19,05 8,60 17,89 9,08 16,76 9,54

4 27,14 6,36 25,94 6,89 24,41 7,51 23,62 7,78 22,54 8,52 20,47 9,01 19,18 9,50 17,92 10,10

Installation manual 1

Cooling capacity YLCA 1.8

29

1.9 Instructions for installation and connection of the unit

1.9.1 Characteristics of the location

Before locating the unit, make sure you have received the appropriate product by checking the specifi‐
cations 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.

Location of various units

Avoid recirculation of air between units.

OK

NO

1

Installation manual

1.9 Instructions for installation and connection of the unit

30

1.9.2 Specifications for anchoring the unit

Before installing the unit, make sure the structure can
support the weight of same. If the unit is to be placed
on the floor, a concrete base should be prepared so
as to distribute weight evenly.

Place the unit on top of a firm base and secure it with
bolts through the four holes on the base.

Areas with regular snowfall

If the unit is mounted outdoors at ground level, it
should be lifted onto supports to prevent a build-up of
snow from obstructing the passage of air. These sup‐
ports must be above the level normally reached by the
snow. Anti-snow grilles should be fitted.

A

Without anti-snow grilles
(low platform)

B

With anti-snow grilles
(low platform)

Orientation
Turn the unit to face the prevailing wind.

YLCA/YLHA 5, 7, 9, 12, 20 Y 27

NO

A

B

Installation manual

1

Instructions for installation and connection of the unit 1.9

31

1.9.3 Hydraulic connections

The hydraulic connections of the water inlet and outlet of the unit should be carried out respecting the
inlet and outlet directions indicated.

Galvanised iron or copper piping can be used, with dimensions no lower than those indicated, and keep‐
ing in mind the pressure drops at said connections and in the internal exchanger of the installation.

Pump dimensioning should be carried out in accordance with a nominal flow rate that allows an Ģt within
the operating limits.

During the winter season, with outdoor temperatures below 0 °C, take precautions to avoid freezing of
the water in the pipes.

Usually, a filling solution is applied to the circuit with an antifreeze mixture (glycol).

1.9.4 Wiring diagrams

Electrical installation YLCA / YLHA PLUS 5 to 27

A

YLCA terminal strip b

Flow Switch (only in
units without hydraulic
group)

B Outdoor terminal strip c

General alarm (voltage­free inverter contact
max. 2A resist. A 230
Vac)

C Main switch d

Remote ON / OFF
switch

a1

Supply (200 ‑ 1+ N ‑ ph
‑ 50 Hz)
(Single-phase units)

e

Remote COOL / HEAT
switch
CLOSED = COOL
OPEN = HEAT
(YLHA units only)

a3

Supply (400 ‑ 3 + N ‑
ph ‑ 50 Hz)
(Three-phase units)

f Auxiliary heater

□

Terminal strips
YLCA / YLHA PLUS

◊

Voltage-free terminal strip contact
YLCA / YLHA PLUS

Ø Outdoor unit terminals - ‑ ‑ Client's electrical installation

○ 230 Vac terminal

C A U T I O N

The cable used for the unit power supply must be H05 RN ‑ F

A

B

C

a1

a3

b

c

d

e

f

1

Installation manual

1.9 Instructions for installation and connection of the unit

32

1.10 Instructions for starting up the unit

1.10.1 Rotational direction of Scroll compressors

The Scroll compressors only operate correctly in one direction of rotation. Although these units are pro‐
tected by a phase order detector, when the unit is started, check that the unit rotates in the correct
direction. If it is not correct:

If the compressors are not connected correctly and are rotating in the wrong direction:

• The compressor will not compress.

• Operating noise will be abnormal.

• Electricity consumption (A) will be low.

• They overheat.

The phase detector must have both LEDs lit for correct operation:

• Green LED lit means: Power ON.

• Yellow LED lit means: Relay ON.

1.11 Unit sound pressure data

YLCA-YLHA Plus models

YLCA-YLHA Plus models

Frequency (Hz) 5 7 9 12 15 20 27

125 Hz 66,2 66,2 74 79,6 79,6 77 75,6

250 Hz 70,5 70,5 72,3 74,3 74,3 72,4 81,3

500 Hz 67,7 67,7 67,9 70,2 70,2 72,9 75,9

1000 Hz 65,7 65,7 66,1 67,5 67,5 69,1 70,8

2000 Hz 60,2 60,2 61,8 62,7 62,7 63,9 68,6

4000 Hz 55,1 55,1 56,3 57,7 57,7 58,2 63,3

8000 Hz 48,8 48,8 52,3 51 51 52,5 55,7

Sound power level dB (A) 70 70 71 73 73 74 78

The data given in this table are sound power values in accordance with ISO EN3743.

Installation manual

1

Instructions for starting up the unit 1.10

33

1.12 Unit installation data

1.12.1 List of tests for unit start-up

Please complete the following forms to register the full details of the installation and the start-up inspec‐
tion.

Complete the blank fields or mark the appropriate box, as applicable.

Company performing installation:

Company performing installation:

Installing technician:

Name / project number:

Location of the unit:

Address of the unit location:

Person in charge of the building or property
where the unit is installed:

Installation work start date:

Unit model number:

Unit serial number:

Plate and version:

Thermostat, model and version:

General inspection of the unit

Visual appearance

Levelling of the unit

Check the unit for transport, loading and unloading damage

Unit installed with sufficient clearance

Check the circuit for the presence of oil (large coolant leaks).

Terminals and connections correctly secured in the control panel and accessories

Air filters installed

Condensate drain pipe and drain trap installed correctly

Thermostat and connection cabling installed correctly

Air duct installation complete and correct

Accessories and planned options installed (if applicable)

Inspection of the air supply fan

Drive belt and pulleys aligned and correctly fastened

Drive belt tension correctly adjusted

Verification of direction of rotation

Inspection of compressors

Verification that direction of rotation is correct

1 Installation manual

1.12 Unit installation data

34

1.12.2 Start-up Data

Electrical data

Specifications Plate Actual

Power supply

Check specifications in

the Installation Manual

Control voltage

Fan consumption (A)

Consumption of condenser fan 1 (A)

Consumption of condenser fan 2 (A)

Consumption of compressor 1 (A)

Consumption of compressor 2 (A)

Consumption of supply fan (A)

Electric heater 1 (Optional)

Electric heater 2 (Optional)

Cool and heat modes

Coolant circuit. Compressor 1

Mode Value

Subcooling (min. 8 K, max. 18 K) °C

Liquid pressure: _____ bar

Liquid temperature: _____ °C

Overheating (min. 4 K, max. 10 K) °C

Suction pressure: _____ bar

Suction temperature: _____ °C

Complete liquid line checked in sight glass

Correct oil level checked in sight glass

Coolant circuit. Compressor 2

Mode Value

Subcooling (min. 8 K, max. 18 K) °C

Liquid pressure: _____ bar

Liquid temperature: _____ °C

Overheating (min. 4 K, max. 10 K) °C

Suction pressure: _____ bar

Suction temperature: _____ °C

Complete liquid line checked in sight glass

Correct oil level checked in sight glass

Air flow rate values

m3/h

Design

Measured

Air temperature

Mode (cool or heat):

Temperature (°C)

Outdoor air:

Supply air:

Return air:

Indoor air mix (if economiser is fitted):

Installation manual 1

Unit installation data 1.12

35

Options

Heating mode (hot water coil)

Air temperature

Capacity: _____ (kW) Temperature (°C)

Supply air (at 100 %)

Return air

Hydraulic circuit

Temperature (°C) Pressure (bar)

Water inlet

Water outlet

Others

Outdoor fan 1

Type or model

Surge protection adjusted

Outdoor fan 2

Type or model

Surge protection adjusted

Indoor fan

Type or model

Surge protection adjusted

Belts Type or model

Economiser Minimum outdoor air setting

Notes and observations

Notes and observations:

____________________________________________________________________________________

____________________________________________________________________________________

____________________________________________________________________________________

____________________________________________________________________________________

____________________________________________________________________________________

____________________________________________________________________________________

____________________________________________________________________________________

____________________________________________________________________________________

____________________________________________________________________________________

____________________________________________________________________________________

____________________________________________________________________________________

____________________________________________________________________________________

____________________________________________________________________________________

Installed by: Name

Date and signature

1 Installation manual

1.12 Unit installation data

36

2

Electric circuit diagrams

2.1 Electric circuit diagram YLCA/YLHA PLUS 5÷9 MC and M
(230.1.50)

I-2531h

YLCA/YLHA PLUS 5, 7, 9 MC and M

230.1.50

L1

L1

N

N

Q2

Amp

230V, 1 ~,50Hz,N, PE

L1

R

L1

L1

N

N

Q1

230V, 1 ~,50Hz,N,

K2

(15)

AH

2

143

N

M1

K1

(14)

C

S

A1

A2

C1

MS

1

C2

M2

F1

F1

F1

315 mA

GO

GND

D4 D2 D1 D3

D5

GND

N1 C1/

2

C5

N2

C1/2C3/

4

N3 N4 N5

C3/4

1 2 3 4 5 6

7 8 9 10 1 1 12

A1

A2
(1)

N1 N4N3 N5 C5

GOGB1

GNDB2GNDB3Y

ID5

GND

ID3
ID4

ID1
ID2

B1 B2 B3

B1 B2 B3

GND

B4 V+GND

B4

J1

10 9 8

7 5 4 3

2 1

11121314

6

J2

4 5 6

7

8 999 10 11 12 13 14 15 1 6 17 18

L1 N

1 2 30

2

143

B4

Q3

3A

FSC

LOAD

F2

L N Y

GND

T

230V

0V

20 VA

FS

P

HP

41

bar

R00

RCH

K1

M3

V4V

2

chiller

2

P

LP

2,5

bar

A

24

(0)

N2

HTP

K2

C

B

B

*(3)

*(4)

*(4)

*(5)

*(1)

G

D E F

*(2)

C

LAK

a b c

HH

I

UNIT Q2 I

5 20 2,5

7 25 4

9 35 6

*(1) Alarm. contact normally open free of voltage (maximum 3A.resistive)

*(2)

Outdoor temperature probe in units with LAK (NTC)
Battery temperature probe in standard units (NTC)

*(3)

Ratiometric pressure transducer in units with LAK
Outdoor temperature probe in standard units (NTC)

*(4) Only MC units

*(5) Only YLHA units

2 Electric circuit diagrams

2.1 Electric circuit diagram YLCA/YLHA PLUS 5÷9 MC and M (230.1.50)

38

a Green wire FS Water flow switch (MC units)

b White wire FSC Fan speed controller

c Black wire HTP Heater thermal protection

A Electronic control HP High-pressure switch (41 bar)

B

The components in the box are standard acces‐
sories supplied by the manufacturer

K1 Compressor contactor

C

The components in the box are not supplied by
the manufacturer

K2 Auxiliary heater contactor

D, M1 Compressor LAK Presostatic low ambient kit accessory

E, AH Auxiliary heater LP Low pressure switch (2,5 bar)

F, M3 Pump (MC units) L1 Line phase

H Install on site M2 Fan motor

I “B” mm2 Cu MS Main switch

AH Auxiliary heater N Neutral

B1 Water inlet temperature probe (NTC) Q1 Thermal magnetic protector

B2 Water outlet temperature probe (NTC) Q2

General / compressor thermal magnetic protec‐
tor

B3 Temperature probe *(2) Q3

General thermal magnetic protector, 230V / fan /
pump / crankcase heater

B4 *(3) R00 Remote ON / OFF switch

C1 Compressor condenser RCH Remote COOL / HEAT switch

C2 Fan condenser T Transformer 230 / 24V 20 VA

F1

Electronic control protection fuse / 24 V [315 mA
SLOW] switching

V4V, G 4-way valves (on YLHA only)

F2 Fan speed controller fuse

Electric circuit diagrams 2

Electric circuit diagram YLCA/YLHA PLUS 5÷9 MC and M (230.1.50) 2.1

39

2.2 Electric circuit diagram YLCA/YLHA PLUS 12 MC and M
(230.1.50)

C

B

B

*(3)

*(4)

*(4)

*(5)

I-2584c

*(1)

G

D E

F

*(2)

C

LAK

a b c

I

L1

L1

N

N

40

Amp

230V, 1 ~,50Hz,N, PE

L1

L1

N

N

Q1

230V, 1 ~,50Hz,N,

K2

(15)

AH

2

143

2

143

L1 N

HH

K2

(14)

*(1) Alarm. Contact normally open free of voltage (maximum 3A.resistive)

*(2)

Outdoor temperature probe in units with LAK (NTC)
Battery temperature probe in standard units (NTC)

*(3)

Ratiometric pressure transducer in units with LAK
Outdoor temperature probe in standard units (NTC)

*(4) Only MC units

*(5) Only YLHA units

2 Electric circuit diagrams

2.2 Electric circuit diagram YLCA/YLHA PLUS 12 MC and M (230.1.50)

40

a Green wire FSC Fan speed controller

b White wire HTP Heater thermal protection

c Black wire HP High-pressure switch (41 bar)

A Electronic control K1 Compressor contactor

B

The components in the box are standard acces‐
sories supplied by the manufacturer

K2 Auxiliary heater contactor

C

The components in the box are not supplied by
the manufacturer

LAK Presostatic low ambient kit accessory

D, M1 Compressor LP Low pressure switch (2,5 bar)

E, AH Auxiliary heater L1 Line voltage

F, M4 Pump (MC units) M2, M3 Fan motors

H Install on site MS Main switch

I 10 mm2 Cu N Phase

B1 Water inlet temperature probe (NTC) Q1 Auxiliary heater thermal magnetic protector

B2 Water outlet temperature probe (NTC) Q2

General / compressor thermal magnetic protec‐
tor

B3 Temperature probe *(2) Q3

General thermal magnetic protector, 230V /
fan / pump / crankcase heater

B4 *(3) Q4 Pump thermal magnetic protector (MC units)

C1 Compressor condenser R00 Remote ON / OFF switch

C2, C3 Fan condensers RCH Remote COOL / HEAT switch

F1

Electronic control protection fuse / 24 V [315 mA
SLOW] switching

T Transformer 230 / 24V 20 VA

F2 Fan speed controller fuse V4V, G 4-way valves (on YLHA only)

FS Water flow switch (MC units)

Electric circuit diagrams 2

Electric circuit diagram YLCA/YLHA PLUS 12 MC and M (230.1.50) 2.2

41

2.3 Electric circuit diagram YLCA/YLHA PLUS 7 and 9 TC and T
(400.3.50)

C

B

B

*(3)

*(4)

*(4)

*(5)

I-2545g

YLCA/YLHA PLUS 7, 9 TC and T

*(1)

G

D E

F

*(2)

C

LAK

a b c

H

I

UNIT Q2 I

7 10 2,5

9 10 2,5

*(1) Alarm. Contact normally open free of voltage (maximum 3A.resistive)

*(2)

Outdoor temperature probe in units with LAK (NTC)
Battery temperature probe in standard units (NTC)

*(3)

Ratiometric pressure transducer in units with LAK
Outdoor temperature probe in standard units (NTC)

*(4) Only TC units

*(5) Only YLHA units

2 Electric circuit diagrams

2.3 Electric circuit diagram YLCA/YLHA PLUS 7 and 9 TC and T (400.3.50)

42

a Green wire FS Water flow switch (TC units)

b White wire FSC Fan speed controller

c Black wire HTP Heater thermal protection

A Electronic control HP High-pressure switch (41 bar)

B

The components in the box are standard acces‐
sories supplied by the manufacturer

K1 Compressor contactor

C

The components in the box are not supplied by
the manufacturer

K2 Auxiliary heater contactor

D, M1 Compressor LAK Presostatic low ambient kit accessory

E, AH Auxiliary heater LP Low pressure switch (2,5 bar)

F, M3 Pump (TC units) L1, L2, L3 Line phases

H Install on site M2 Fan motor

I “B” mm2 Cu MS Main switch

AH Auxiliary heater N Neutral

B1 Water inlet temperature probe (NTC) Q1 Auxiliary heater thermal magnetic protector

B2 Water outlet temperature probe (NTC) Q2

General / compressor thermal magnetic protec‐
tor

B3 Temperature probe *(2) Q3

General thermal magnetic protector, 230V / fan /
pump / crankcase heater

B4 *(3) R00 Remote ON / OFF switch

C2 Fan condenser RCH Remote COOL / HEAT switch

F1

Electronic control protection fuse / 24 V [315 mA
SLOW] switching

T Transformer 230 / 24V 20 VA

F2 Fan speed controller fuse V4V, G 4-way valves (on YLHA only)

FC Phase control

Electric circuit diagrams 2

Electric circuit diagram YLCA/YLHA PLUS 7 and 9 TC and T (400.3.50) 2.3

43

2.4 Electric circuit diagram YLCA/YLHA PLUS 12 and 15 TC and
T (400.3.50)

C

B

B

*(3)

*(4)

*(4)

*(4)

*(5)

I-2533i

*(1)

G

D E

F

*(2)

C

LAK

a b c

H

I

UNIT Q2 I

12 16 2,5

15 16 2,5

*(1) Alarm. Contact normally open free of voltage (maximum 3A.resistive)

*(2)

Outdoor temperature probe in units with LAK (NTC)
Battery temperature probe in standard units (NTC)

*(3)

Ratiometric pressure transducer in units with LAK
Outdoor temperature probe in standard units (NTC)

*(4) Only TC units

*(5) Only YLHA units

2 Electric circuit diagrams

2.4 Electric circuit diagram YLCA/YLHA PLUS 12 and 15 TC and T (400.3.50)

44

a Green wire FSC Fan speed controller

b White wire HTP Heater thermal protection

c Black wire HP High-pressure switch (41 bar)

A Electronic control K1 Compressor contactor

B

The components in the box are standard acces‐
sories supplied by the manufacturer

K2 Auxiliary heater contactor

C

The components in the box are not supplied by
the manufacturer

K3 Pump contactor (TC units)

D, M1 Compressor LAK Presostatic low ambient kit accessory

E, AH Auxiliary heater LP Low pressure switch (2,5 bar)

F, M4 Pump (TC units) L1, L2, L3 Line phases

H Install on site M2, M3 Fan motor 1 and 2

I “B” mm2 Cu MS Main switch

AH Auxiliary heater N Neutral

B1 Water inlet temperature probe (NTC) Q1 Auxiliary heater thermal magnetic protector

B2 Water outlet temperature probe (NTC) Q2

General / compressor thermal magnetic protec‐
tor

B3 Temperature probe *(2) Q3

General thermal magnetic protector, 230V / fan /
pump / crankcase heater

B4 *(3) Q4 Pump magneto-thermal protector (TC units)

C2, C3 Fan condenser R00 Remote ON / OFF switch

F1

Electronic control protection fuse / 24 V [315 mA
SLOW] switching

RCH Remote COOL / HEAT switch

F2 Fan speed controller fuse T Transformer 230 / 24V 20 VA

FC Phase control V4V, G 4-way valves (on YLHA only)

FS Water flow switch (TC units)

Electric circuit diagrams 2

Electric circuit diagram YLCA/YLHA PLUS 12 and 15 TC and T (400.3.50) 2.4

45

2.5 Electric circuit diagram YLCA/YLHA PLUS 20 TC and T
(400.3.50)

I-2534g

YLCA/YLHA PLUS 20 TC and T

400.3.50

L1

L1

L2

Q1

400V, 3 ~,50Hz,

K2

(17)

AH

2

143

MS

1

F1

F1

GO

GND

D4 D2 D1 D3

D5

GND

N1 C1/

2

C5

N2

C1/2C3/

4

N3 N4 N5

C3/

4

1 2 3 4 5 6

7 8 9 10 11 12

A1

A2
(2)

N1 N4N3 N5 C5

GOGB1

GNDB2GNDB3Y

ID5

GND

ID3
ID4

ID1
ID2

B1 B2 B3

B1 B2

GND

B4 V+GND

B4

J1

10 9 8

7 5 4 3

2 1

11121314

6

J2

4 5 6 7

8

9

10 11 12 13 14 15 16 17 18

L1

L3

L2L3

L2L3

5

6

A1

A2

M4

K3

(18)

A1

A2

3

~

M1

K1

(16)

A1

A2

(5)

3

~

(12)

Q4

3

4

A1

A2
(3)

1 2 30

C3M3C2

M2

19 20

B3

L1 L2 L3 N

L1

L1

N

N

Q2

25A

400V, 3 ~,50Hz,N,

L2L3

L2L3

F1

315 mA

(0)

N2

HTP

Q3

4A

FSC

LOAD

F2

L N Y

GND

T

230V

0V

20 VA

CH

21

22

K1

FS

P

HP

41

bar

R00

RCH

K1

V4V

2

chiller

2

212212345

6

12345

6

12345

6

62413142122

FC

(8)

L1L3L2

(16)

14

11

FC

(1)

13

14

Q4

(3)

K3

A

24

P

LP

2,5

bar

K2

C

B

*(3)

*(2)

*(1)

G

D E

F

C

a b c

H

I

*(1) Alarm. Contact normally open free of voltage (maximum 3A.resistive)

*(2) Only TC units

*(3) Only YLHA units

2 Electric circuit diagrams

2.5 Electric circuit diagram YLCA/YLHA PLUS 20 TC and T (400.3.50)

46

a Green wire FS Water flow switch (TC units)

b White wire FSC Fan speed controller

c Black wire HTP Heater thermal protection

A Electronic control HP High-pressure switch (41 bar)

B

The components in the box are standard acces‐
sories supplied by the manufacturer

K1 Compressor contactor

C

The components in the box are not supplied by
the manufacturer

K2 Auxiliary heater contactor

D, M1 Compressor K3 Pump contactor (TC units)

E, AH Auxiliary heater LAK Presostatic low ambient kit accessory

F, M4 Pump (TC units) LP Low pressure switch (2,5 bar)

H Install on site L1, L2, L3 Line phases

I 4 mm2 Cu M2, M3 Fan motor 1 and 2

AH Auxiliary heater MS Main switch

B1 Water inlet temperature probe (NTC) N Neutral

B2 Water outlet temperature probe (NTC) Q1 Auxiliary heater thermal magnetic protector

B3 Outdoor temperature probe (NTC) Q2

General / compressor thermal magnetic protec‐
tor

B4

Fan / defrost speed control ratiometric pressure
probe

Q3

General thermal magnetic protector, 230V / fan /
pump / crankcase heater

C2, C3 Fan condenser Q4 Pump magneto-thermal protector (TC units)

CH Compressor crankcase heater R00 Remote ON / OFF switch

F1

Electronic control protection fuse / 24 V [315 mA
SLOW] switching

RCH Remote COOL / HEAT switch

F2 Fan speed controller fuse T Transformer 230 / 24V 20 VA

FC Phase control V4V, G 4-way valves (on YLHA only)

Electric circuit diagrams 2

Electric circuit diagram YLCA/YLHA PLUS 20 TC and T (400.3.50) 2.5

47

2.6 Electric circuit diagram YLCA 27 TC, YLHA PLUS 27
(400.3.50)

I-2565f

YLCA 27 TC

YLHA PLUS 27

400.3.50

L1

L1

L2

Q1

400V, 3 ~,50Hz,

K2

(17)

AH

2

143

MS

1

F1

F1

GO

GND

D4 D2 D1 D3

D5

GND

N1 C1/

2

C5

N2

C1/2C3/

4

N3 N4 N5

C3/

4

1 2 3 4 5 6

7 8 9 10 11 12

A1

A2
(2)

N1 N4N3 N5 C5

GOGB1

GNDB2GNDB3Y

ID5
GND

ID3
ID4

ID1
ID2

B1 B2 B3

B1 B2

GND

B4 V+GND

B4

J1

10 9 8

7 5 4 3

2 1

11121314

6

J2

4 5 6 7

8

9

10 11 12 13 14 15 16 17 18

L1

L3

L2L3

L2L3

5

6

A1

A2

M4

K3

(18)

A1

A2

3

~

M1

K1

(16)

A1

A2

(5)

3

~

(12)

Q4

3

4

A1

A2
(3)

1 2 30

C3M3C2

M2

19 20

B3

L1 L2 L3 N

L1

L1

N

N

Q2

25A

400V, 3 ~,50Hz,N,

L2L3

L2L3

F1

315 mA

(0)

N2

HTP

Q3

FSC

LOAD

F2

L N Y

GND

T

230V

0V

20 VA

CH

21

22

K1

FS

R00

RCH

K1

V4V

2

chiller

2

212212345

6

12345

6

12345

6

62413142122

FC

(8)

L1L3L2

(16)

14

11

FC

(1)

13

14

Q4

K3

A

24

P

LP

2,5

bar

K2

5

6

P

HP

41

bar

(3)

PTV1

PTV2

C

B

*(3)

*(2)

*(1)

G

D E

F

C

a b c

H

I

*(1) Alarm. Contact normally open free of voltage (maximum 3A.resistive)

*(2) Only TC units

*(3) Only YLHA units

2 Electric circuit diagrams

2.6 Electric circuit diagram YLCA 27 TC, YLHA PLUS 27 (400.3.50)

48

a Green wire FSC Fan speed controller

b White wire HTP Heater thermal protection

c Black wire HP High pressure switch (41 bar)

A Electronic control K1 Compressor contactor

B

The components in the box are standard acces‐
sories supplied by the manufacturer

K2 Auxiliary heater contactor

C

The components in the box are not supplied by
the manufacturer

K3 Pump contactor (TC units)

D, M1 Compressor LAK Presostatic low ambient kit accessory

E, AH Auxiliary heater LP Low pressure switch (2,5 bar)

F, M4 Pump (TC units) L1, L2, L3 Line phases

H Install on site M2, M3 Fan motor 1 and 2

I 8 mm2 Cu MS Main switch

AH Auxiliary heater N Neutral

B1 Water inlet temperature probe (NTC) PTV1, PTV2 Fan heat switch

B2 Water outlet temperature probe (NTC) Q1 Auxiliary heater thermal magnetic protector

B3 Outdoor temperature probe (NTC) Q2

General / compressor thermal magnetic protec‐
tor

B4

Fan / defrost speed control ratiometric pressure
probe

Q3

General thermal magnetic protector, 230V / fan /
pump / crankcase heater

C2, C3 Fan condenser Q4 Pump magneto-thermal protector (TC units)

CH Compressor crankcase heater R00 Remote ON / OFF switch

F1

Electronic control protection fuse / 24 V [315 mA
SLOW] switching

RCH Remote COOL / HEAT switch

F2 Fan speed controller fuse T Transformer 230 / 24V 20 VA

FC Phase control V4V, G 4-way valves (on YLHA only)

FS Water flow switch (TC units)

Electric circuit diagrams 2

Electric circuit diagram YLCA 27 TC, YLHA PLUS 27 (400.3.50) 2.6

49

2.7 Electric circuit diagram YLCA PLUS 5 ÷ 9 MCS (230.1.50)
SOFT START

L1

L1

N

N

Q2

Am

p

230V

, 1 ~,50Hz,N, PE

L1

L1

L1

N

N

Q1

230V, 1 ~,50Hz,N,

K2

(15)

AH

2

143

N

(14)

C1

MS

1

C2

M2

F1

F1

F1

315 mA

GO

GND

D4

D2

D1 D3

D5

GND

N1

C

1

/2 C5

N2

C

1

/2

C

3

/4

N3

N4

N5

C

3

/

4

1 2

3 4

5 6

7 8

9 1

0 1

1 12

N1

N4

N3 N5

C5

GO

G

B1

GND

B2

GND

B3
Y

ID

5

GND

ID

3

ID4

ID1
ID2

B1 B2

B3

B1 B2 B3

GND

B4

V+

GND

B4

J1

10

9 8

7

5

4 3

2 1

11

1213

14

6

J2

4 5 6

7

8 999 1

0 11 1

2 1

3 1

4 1

5 161718

L1 N

1 2

3

0

2

1

4

3

B4

R
RC
L1
S
ON
N

SS

Q3

3A

FSC

LOAD

F2

L N Y

GND

T

230V

0V

20 VA

FS

P

HP

41

bar

R0

0

RCH

M3

V4V

2

��chiller

2

P

LP

2,5

bar

A

24

(0)

N2

HTP

K2

M1

S

C

R

I-2582b

YLHA PLUS 5, 7, 9 MCS

230.1.50

C

B

*(4)

*(5)

*(4)

*(2)

LAK

B

*(3)

*(1)

G

D E

F

C

a b c

HH

I

UNIT Q2 I

5 20 2,5

7 25 4

9 32 6

*(1) Alarm. contact normally open free of voltage (maximum 3A.resistive)

*(2)

Outdoor temperature probe in units with LAK (NTC)
Battery temperature probe in standard units (NTC)

*(3)

Ratiometric pressure transducer in units with LAK
Outdoor temperature probe in standard units (NTC)

*(4) Only MC units

*(5) Only YLHA units

2 Electric circuit diagrams

2.7 Electric circuit diagram YLCA PLUS 5 ÷ 9 MCS (230.1.50) SOFT START

50

a Green wire F2 Fan speed controller fuse

b White wire FS Water flow switch (MC units)

c Black wire FSC Fan speed controller

A Electronic control HTP Heater thermal protection

B

The components in the box are standard acces‐
sories supplied by the manufacturer

HP High-pressure switch (41 bar)

C

The components in the box are not supplied by
the manufacturer

K2 Auxiliary heater contactor

D, M1 Compressor LAK Presostatic low ambient kit accessory

E, AH Auxiliary heater LP Low pressure switch (2,5 bar)

F, M3 Pump (MC units) L1 Line phase

H Install on site M2 Fan motor

I “B” mm2 Cu MS Main switch

AH Auxiliary heater N Neutral

B1 Water inlet temperature probe (NTC) Q1 Thermal magnetic protector

B2 Water outlet temperature probe (NTC) Q2

General / compressor thermal magnetic protec‐
tor

B3 Temperature probe *(2) Q3

General thermal magnetic protector, 230V / fan /
pump / crankcase heater

B4 *(3) R00 Remote ON / OFF switch

C1 Compressor condenser RCH Remote COOL / HEAT switch

C2 Fan condenser T Transformer 230 / 24V 20 VA

F1

Electronic control protection fuse / 24 V [315 mA
SLOW] switching

V4V, G 4-way valves (on YLHA only)

Electric circuit diagrams 2

Electric circuit diagram YLCA PLUS 5 ÷ 9 MCS (230.1.50) SOFT START 2.7

51

2.8 Electric circuit diagram YLCA PLUS 12 MCS (230.1.50) SOFT
START

L1

L1

N

N

40

Am

p

230V

, 1 ~,50Hz,N, PE

L1

L1

L1

N

N

Q1

230V, 1 ~,50Hz,N,

K2

(15)

AH

2

143

N

(14)

C1

MS

1

C2M2C2

C1

M2

M4

C3

M3

F1

F1

F1

315 mA

GO

GND

D4

D2

D1 D3

D5

GND

N1

C

1

/2 C5

N2

C

1

/2

C

3

/4

N3

N4

N5

C

3

/

4

1 2

3 4

5 6

7 8

9 1

0 1

1 12

N1

N4

N3 N5

C5

GO

G

B1

GND

B2

GND

B3
Y

ID

5

GND

ID

3

ID4

ID1
ID2

B1 B2

B3

B1 B2 B3

GND

B4

V+

GND

B4

J1

10

9 8

7

5

4 3

2 1

11

1213

14

6

J2

4 5 6

7

8 999 1

0 11 1

2 1

3 1

4 1

5 161718

L1 N

1 2

3

0

2

1

4

3

B4

R
RC
L1
S
ON
N

SS

Q3

3A

Q3

3A

FSC

LOAD

F2

L N Y

GND

T

230V

0V

20 VA

FS

P

HP

41

bar

R0

0

RCH

V4V

2

��chiller

2

P

LP

2,5

bar

A

24

(0)

N2

HTP

K2 K3

M1

S

C

R

I-2583d

YLHA PLUS 12 MCS

230.1.50

1

K3

(16)

5

C

B

*(4)

*(5)

*(4)

*(2)

LAK

B

*(3)

*(1)

G

D E

F

C

a b c

HH

I

*(1) Alarm. contact normally open free of voltage (maximum 3A.resistive)

*(2)

Outdoor temperature probe in units with LAK (NTC)
Battery temperature probe in standard units (NTC)

*(3)

Ratiometric pressure transducer in units with LAK
Outdoor temperature probe in standard units (NTC)

*(4) Only MC units

*(5) Only YLHA units

2 Electric circuit diagrams

2.8 Electric circuit diagram YLCA PLUS 12 MCS (230.1.50) SOFT START

52

a Green wire FSC Fan speed controller

b White wire HTP Heater thermal protection

c Black wire HP High-pressure switch (41 bar)

A Electronic control K2 Auxiliary heater contactor

B

The components in the box are standard acces‐
sories supplied by the manufacturer

K3 Pump contactor (TC units)

C

The components in the box are not supplied by
the manufacturer

LAK Presostatic low ambient kit accessory

D, M1 Compressor LP Low pressure switch (2,5 bar)

E, AH Auxiliary heater L1 Line phase

F, M4 Pump (MC units) M2, M3 Fan motor

H Install on site MS Main switch

I 10 mm2 Cu N Neutral

AH Auxiliary heater Q1 Auxiliary heater thermal magnetic protector

B1 Water inlet temperature probe (NTC) Q2

General / compressor thermal magnetic protec‐
tor

B2 Water outlet temperature probe (NTC) Q3

General thermal magnetic protector, 230V / fan /
pump / crankcase heater

B3 Temperature probe *(2) R00 Remote ON / OFF switch

B4 *(3) RCH Remote COOL / HEAT switch

C2, C3 Fan condenser SS Gentle starter

F1

Electronic control protection fuse / 24 V [315 mA
SLOW] switching

T Transformer 230 / 24V 20 VA

F2 Fan speed controller fuse V4V, G 4-way valves (on YLHA only)

FS Water flow switch (MC units)

Electric circuit diagrams 2

Electric circuit diagram YLCA PLUS 12 MCS (230.1.50) SOFT START 2.8

53