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Air-Air Reversible, VITALITY Series
VCH 20A to 90A
VIR 25A to 90A
Ref.: N-27718 0109
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Technical Information
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Index
Page
General Information
3
- General description
- Nomenclature
3
3
Technical Specifications
3
- Mechanical specifications - Operating diagram
- Thermostat
- DPC-1 ambient thermostat
- International YKtool
- YKphone 485
- Physical data
3
4
4
4
5
5
6
Installation Instructions
7
- Environmental protection
- Elimination of the unit
- Safety
- Transportation
- Warning signs
- Location of indoor units VIR 25 to 90A
- Location of outdoor units VCH 20 to 90A
- Clearances
- Fastening the indoor unit to the ceiling
- Outdoor unit air ducts
- Indoor unit air ducts
- Drain connections, VCH 20 to 90A outdoor unit
- Drain connections VIR 25 to 90A indoor unit
- Drain pipe insulation
7
7
7
7
7
8
8
8
9
9
9
9
9
9
Interconnecting the units
9
- Installation of the unit
- Installation of interconnecting pipes
- Pipes to be used
- Insulation of refrigerant pipes
- Draining and drying
- Refrigerant charge
- Refrigerant charge and pipe diameters
- Checking for leaks
- Application of R-410A refrigerant
Wiring
- Electrical connections
- Indoor fan connections, VIR-25A to 90A
- Thermostat connection
- Setting the electronic board
- Selecting cool only function
- Rotational direction of Scroll compressors
- Limits of use
- YKlon control board
- Power supply connection and interconnecting diagrams
- Electrical characteristics
- Prior to approving the installation
- Maintenance of the units
Technical Characteristics
- General dimensions
- Cooling diagram
- Variant chart
- Nominal performances
- Test conditions
- Correcting factors
- Capacity correcting factors in accordance with the
length and height between units
- Sound level (Nominal flow and static pressure available)
- Sensible cooling capacities
- Nominal flows
9
9 - 10
10
10
10
10
11
12
12
12
12
12
12
12
12
12
13
13
14
14 - 15
15
16
17
17 - 22
23
23
24
24
24
25
25
26 - 27
28
Page
- Performances of indoor fan assembly: Standard and with
High Speed Drive
- Indoor fan High Speed Drive
- Outdoor fan services
- Wiring diagrams
- Configuration of switches, failures and incidents
- Cooling capacities (VCH only)
28
29
30
31 - 33
34
35
Accessories and Options
36
- Weight of acsessories
36
Hot Water Coil 37
- General information
- Technical specifications
- Installation
- Operation
- Physical data
- Data with water, without GLYCOL
- Hydraulic circuit flow/pressure characteristics,
hot water coil VIR 25A to 90A
- Pressure drop of air circuit
- Wiring diagram
37
37
39
40 - 41
41
42
Internal Electric Heaters for VIR 25A to 90A
44
- Technical specifications
- Assembly and general dimensions - General characteristics
- Dimensions with packing, and weights
- Installation
- Wiring diagrams
Vertical Air Discharge for: VIR 25A to 90A
42
42
43
44
44 - 46
47
47
47
48 - 49
50
Vertical Air Discharge Conversion for:
VCH 20A, 25A, 30A and 40A
51 - 52
Vertical Air Discharge Conversion for:
VCH 45A, 60A, 75A and 90A
53 - 54
Condensation Control VCH 20 to 90A 55
- Operation
- Programming and adjustment - Horizontal air discharge assembly
- Vertical discharge assembly
- Checking - Location of components - Wiring diagrams
55
55
56
56
57
57 - 60
61 - 62
Tray Heater
63
- Assembly
63
Economiser
64
- Technical specifications
- Installation
- Operation
- Economiser, general dimensions
- Economiser assembly, standard configuration
- Return air sensor, outdoor and impulse
- Economiser control board
- Wiring diagram
64
64
65
66
67
68
68
69
Static Starter (Soft Start)
70
- Status indicator LED
- Electrical interconnection
- Operating diagram
70
70
70
General Information
Technical Specifications
The VITALITY series models are reversible air-air units, with
centrifugal fans both in the indoor as well as the outdoor
units.
The VCH unit includes compressor, condensing unit, centrifugal fan, controls and the DPC-1 thermostat. The VIR indoor
units include evaporating coil, air filter and centrifugal fan. If
necessary, the standard version supplied can be modified at
the job site so as to achieve a compact unit.
The unit can be located both indoors as well as outdoors
since it is protected to withstand outdoor environmental
conditions, plus the fans are of the centrifugal type and thus
accept ducts.
Supplied completely equipped and factory tested.
Designed to achieve significant energy savings and a long
operating life.
Commissioning and automatic temperature control are carried out by means of the 24-volt ambient thermostat.
Compressor
Of the vertical leak-tight type mounted on antivibratory supports, sp ecially designed for heat pump units with over sizing
of mechanical components low consumption motor.
The VCH 20A, 25A, 30A and 40A units have one single
compressor; the VCH 45A, 60A, 75A and 90A units have two
compressors with two independent circuits.
Supplied with a POE oil charge that avoids foaming, and an
oil heating element.
Mechanical specifications
General description
Nomenclature
V: Vitality Series
I: Indoor
R: Reversible
Version A
VIR 20
A
A: Aluminium
B: Blue fin
C: Copper
A
V: Vitality Series
C: Air - air ducts
H: Heat pump
Version A
VCH 20
A
A
Coils
Of a large surface, made of copper tubing and aluminium fins.
Located inside the cabinet, these are totally protected against
damage during transportation or installation. As an option,
these can be supplied with Blue Fin or copper fins.
Indoor fan (VIR 25A)
The unit is equipped with a centrifugal fan driven by an independent motor and a belt drive.
Outdoor fan (VCH 45A, 60A, 75A and 90A)
The unit is equipped with two independent centrifugal fans.
Each one is driven by an independent motor and coupled to
one single plenum.
The fan motor is belt driven.
These fans have sufficient available pressure for installing
ducts and optional accessories.
Cooling circuit
Made of welded copper tubing and equipped with access
connections to the high and low pressure sides. Equipped
with cut-off valves on the suction side. These are used at the
factory to protect the compressor during the pressure test at
45 bar that all units are subject to obligatorily.
Refrigerant
The VCH and VIR units are supplied with the connections
ready for welding. The refrigerant charge should be done
fully at the job site. See refrigerant charges in the physical
data table.
Size
Fins
Suction accumulator
Coupled to the suction pipe of the compressor, protects same
against slugging.
Indoor fan (VIR 40A, 45A, 60A, 75A and 90A) and outdoor
fan (VCH 20A, 25A, 30A and 40A)
The units are equipped with two centrifugal fans with a common shaft and a belt drive, driven by one single motor and
coupled to one single plenum.
Size
Fins
Compressor heater
Keeps the oil in the sump warm to facilitate start-ups and
avoid oil leaving the compressor.
A: Aluminium
B: Blue fin
C:Copper
Control panel
Accessible directly from the outside by means of 1/4 turn
locks. Includes: connecting strip, protectors, electronic board
and probes, power supply contactors, operating relay, phase
control relay and transformer. Complies with the European
standards in force. Degree of protection, IP44.
Phase control relay
The control panel of the unit introduces a sequence and
phase failure detector if it detects a phase sequence other
than R-S-T; or, once the unit is in operation, if there is a
phase failure the detector, by means of an internal volt-free
contact, will disconnect the power supply to the main board
of the unit, leaving same inoperative.
If the phase sequence is correct but the centrifugal fan of the
indoor unit (VIR) rotates in the opposite direction, interchange
two phase at the bottom of the fan contactor.
Filter-dryer
Coupled to the cooling circuit to protect the components
of same against humidity and particles that could be in the
refrigerant.
Casing
Made of aluminium zinc-coated steel sheeting, with priming
and enamelled with oven polymerized powdered paint; colour
RAL 9002, with a quality finish (800 H.N.S. DIN 50021) to
guarantee a long operating life of the machine. This allows
installing the machine outdoors.
Thermostat
The VCH 20A to 90A units include, as standard equipment,
the DPC-1 thermostat. To connect the thermostat to the
board, screened 10 x 0.22 mm² communication cable should
be used.
DPC-1 ambient thermostat
Programmable digital thermostat with communication
This thermostat was designed to give close control of the
ambient temperature and graphic information regarding the
mode it is currently operating in. This control unit, in accordance with the differential between the programmed temperature and the ambient temperature, responds by varying the
on/off cycles.
The liquid crystal display (LCD) normally indicates the ambient temperature, operating mode and whether the system is
in heat or cool.
It allows selecting different set point temperatures for cool and
heat, besides choosing between °C and °F on the display.
Fan operation can be in continuous or automatic mode, off
or in operation along with the compressor.
Internal electric heaters (optional)
Of the open air type that allow quick heat dissipation, avoiding
the temperature inertia that could affect the components.
Operating diagram
VIR
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International YKtool
The YKtool device is a portable diagnostic and test system
for air conditioning units based on the YKtool system. This
comprises displaying the main variables of the system as
well as the possibility of activating the different stages in
diverse modes.
1 Maintenance
2 Accessories
3 Inputs
YKphone 485
This is a device designed for the remote supervision, monitoring and diagnosis of installations with air conditioning units
(supermarkets, factories, cinemas, etc.). Equipped with an
RS485 controller for communication with machines with
YKlon boards (version 3.0), and another RS232 controller
for communication with the PC.
Allows connecting a maximum of 16 units with YKlon boards.
It is necessary to use the accessory RS485 Board, code
006791239, with each unit and configure microswitch SW1
in accordance with the direction of the network.
For communication of the installation with the PC, it is necessary to install the YKViewerIP software.
4 Outputs
5 Temperatures
6 Cool test
7 Heat test
8 Defrost test
9 Language
Physical data
Condensing units
VCH 20A VCH 25A VCH 30A VCH 40A VCH 45A VCH 60A VCH 75A VCH 90A
Model
Amount
Nominal power
Compressor
Power supply
Degree of protection
Nominal power
Power supply
Degree of protection
Outdoor fan
Motor pulley
Fan pulley
kW
1
1
1
1
4.9
6.4
7.9
10.5
V.ph.Hz
1.5
3
3
V.ph.Hz
2 x 8.1
2 x 10.7
2 x 13.4
2 x 2.2
2x4
2x4
400.3.50
55
1 400
mm
270
270
320
320
380
380
380
380
Turbine width (x 2)
mm
270
270
320
320
380
380
380
380
No. channels/shaft diam.
SPZ / 100
SPZ / 90
SPZ / 100
SPZ / 90
2 / 24
2 / 28
2 / 24 (x 2)
2 / 28 (x 2)
SPZ / 150
SPZ / 140
SPZ / 200 SPZ / 170
SPZ / 140
2 / 20
2 / 25
2 / 25 (x 2) 2 / 25 (x 2)
2 / 25 (x 2)
(No. of pulleys)
Primitive type/diameter
(No. of pulleys)
Type
Dimensions
Amount
Approximate
weight
2x6
Turbine diameter (x 2)
No. channels/shaft diam.
Dimensions
with packing
2
2 x 2.2
IP
Primitive type/diameter
Outdoor coil
2
21
1.5
Motor rpm
Belts
2
400.3.50
IP
kW
2
Pipes, depth x height
SPZ
SPZ
SPZ
SPZ
1 010 (x 2)
1 075 (x 2)
1 262 (x 4) 1 200 (x 4)
1 137 (x 4)
1
1
1
1
2
2
2
2
5 x 37
5 x 37
5 x 40
5 x 40
5 x 42
5 x 42
5 x 48
5 x 48
Pipes, diameter
3/8"
Surface
m²
1.01
1.01
1.47
1.47
2 x 1.02
2 x 1.02
2 x 1.44
2 x 1.44
Height
mm
1 413
1 413
1 546
1 546
1 660
1 660
1 814
1 814
Width
mm
1 460
1 460
1 838
1 838
2 340
2 340
2 760
2 760
Depth
mm
890
890
880
880
880
880
1 000
1 000
Nett
kg
285
310
355
375
578
589
710
715
Gross
kg
290
314
360
380
582
593
715
720
Indoor units
Model
Nominal power
Power supply
Indoor fan
Degree of protection
kW
Dimensions
with packing
Approximate weight
VIR 45A
VIR 60A
VIR 75A
VIR 90A
0.75
1.5
1.5
2.2
3
4
400.3.50
IP
55
Motor rpm
1 400
Turbine diameter
mm
320
320 (x 2)
320 (x 2)
320 (x 2)
380 (x 2)
380 (x 2)
Turbine width
mm
320
240 (x 2)
320 (x 2)
320 (x 2)
380 (x 2)
380 (x 2)
Pipes. depth x height
1
1
1
1
1
1
4 x 21
4 x 25
4 x 29
4 x 29
5 x 32
5 x 32
1.40
1.76
1.76
Pipes. diameter
Surface
EU3 filters
VIR 40A
V.ph.Hz
Amount
Indoor coil
VIR 25A
3/8"
m²
Amount
Dimensions
0.57
0.84
1.40
3
3
3
3
365 x 543 x 24
447 x 616 x 24
640 x 715 x 24
547 x 789 x 24
Height
mm
760
825
925
925
1 000
1 000
Width
mm
1 470
1 850
2 350
2 350
2 760
2 760
Depth
mm
1 020
1 020
1 020
1 020
1 120
1 120
Nett
kg
128
173
223
223
310
312
Gross
kg
152
198
250
250
340
342
Installation Instructions
Inspection
Upon reception, inspect the goods and notify the carrier and
the insurance company, in writing, of any possible damage.
Environmental protection
Packing
Packing is made of recyclable material. Its elimination should
be carried out in accordance with local regulations on selective collection of residual material.
Refrigerant
During installation and maintenance, keep in mind that
HFC-410A with POE oil is used.
Contains greenhouse effect fluorine gas covered by the
Kyoto Protocol.
For the type of gas and amount per system, please see the
identification plaque.
GWP (Global Warming Potential): 2088.
Elimination of the unit
Upon disassembly of the unit, the components should be
recuperated ecologically. The cooling circuit is full of refrigerant that should be recuperated and returned to the gas
manufacturer for recycling.
Oil will remain in the hermetic compressor and, therefore,
must be returned with the circuit sealed.
The air conditioning unit will be deposited in an area determined by the local authorities for its selective recuperation.
If, for any reason, this position need be changed sporadically,
they will remain in that position a strictly necessary period
of time only.
Warning signs
The following signs indicate the existence of potentially dangerous conditions for users or maintenance service personnel. Whenever found on the unit, take the meaning of each
one into account.
This symbol indicates an electrical risk or
danger.
Caution: The unit is equipped with a
remote control system and can start up
automatically.
Before accessing the interior of the unit,
disconnect the power supply so as to avoid
any contact with the fan turbine in motion.
Caution: Fan in operation.
Safety
Installation and maintenance servicing of this air conditioning system should be carried out by qualified and expert
personnel only.
Maintenance servicing, such as cleaning coils and air filters,
should be carried out regularly to maintain optimum performance of the units.
Caution: It is obligatory to read the instructions prior to any handling.
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Caution: Do not touch hot surfaces.
Attention: Pulley and belt drive.
This unit should be installed and used in compliance with:
- Low voltage electro technical regulations.
- Safety regulations for cooling plants and installations.
- Pressure device regulations.
- Basic building regulations.
- Local regulations.
Attention: Possible gas leak due to inadequate handling.
Transportation
The units should always be transported in vertical position
so as to avoid oil dripping from the compressor.
Locate the unit preferably near a wall leading to the exterior so
as to make installation, maintenance and draining easier.
Location of VCH 20 to 90A outdoor units
The location of these units should be chosen anticipating a
permanent access for maintenance servicing, either through
the side panels or the rear panel.
The outdoor unit can be installed directly in exteriors. If
installed in interiors, basements, attics, etc., the outdoor air
and extraction ducts must be connected.
When installing in interiors, keep in mind that in the summer
operating cycle, the outdoor coil condenses a large amount
of water that must be evacuated through the drain.
The possibility of an obstruction of the drain by foreign elements, dust or dirt.
Areas where it snows regularly. If the unit is installed outdoors and at ground level, it should be raised on supports
so as to avoid accumulations of snow obstructing air flow.
These supports should be above the height the snow reaches
normally. It is convenient to install anti-snow grids.
Clearances
When installing each unit, clearances should be left for:
a) Air intake and discharge of the outdoor unit.
b) Connection of the drain pipes and wiring.
c) Air ducts.
d) Maintenance servicing.
e) Power supply connections.
VCH
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Location of VIR 25 to 90A indoor units
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Fastening the indoor unit to the ceiling
When fastening, make sure it is completely horizontal, or
very slightly tilted towards the drain, so as to avoid possible
condensed water leaks (use a bubble level).
It is extremely important to be very careful with the support
of the indoor unit on the ceiling.
Make sure the ceiling is strong enough to support the weight
of the unit.
Before hanging, check the strength of each suspension bolt
installed.
Outdoor unit air ducts
1.-Connect the ducts, isolating them from the unit by means
of a flexible hose, preferably of non-flammable material, so
as to avoid the transmission of vibrations of the unit. If the
ducts are made of flexible material, they do not transmit
vibrations.
compressor, connecting same electrically as per the diagrams herein.
Drain connections, VIR 25 to 90A indoor unit
It is necessary to connect a condensed water drain pipe to
the evaporating unit.
Install the drain pipe through a siphon.
Leave a minimum level difference of 25 mm. between
the height of the unit connection and the line after the siphon.
An access must be left so as to fill the siphon with water at
the beginning of each season.
The drain line must have a minimum slope of 2 cm. per each
metre in length.
Insulate the condensed water drain pipe so as to avoid leaks
and damaging the floor.
Drain pipe insulation
2.-On units VCH 45A, 60A, 75A and 90A, two different ducts
must be installed, one for each fan up to the discharge,
to avoid the recirculation of air.
Insulate the condensed water drain pipe so as to avoid leaks
and damaging the floor.
Make sure water evacuation is being carried out correctly.
3.-If the outdoor air coil air discharge is carried out through
the ducts, it is convenient to have the first 1-meter section
made of galvanized sheeting so as to avoid deterioration
due to a possible creeping of drops.
Interconnecting units
Indoor unit air ducts
1.-Connect the ducts, isolating them from the unit by means
of a flexible hose, preferably of non-flammable material,
so as to avoid the transmission of vibrations of the
unit.
If the ducts are made of flexible material, they do not
transmit vibrations.
2.-It is recommendable to install a damper at each by-pass
of the discharge duct for the purpose of carrying out a
correct balance of the system.
3.-Leave easy access for cleaning and changing the air
filters.
The installation of a unit comprises:
- Assembly of the unit.
- Connection of refrigerant pipes.
- Wiring of the unit.
When installing Split units, make sure the cooling circuit is
completely sealed after assembly, for the purpose of avoiding leaks.
This will contribute to achieving maximum performance with
minimum consumption, and will avoid serious damage to the
unit. Furthermore, this is an ecological precaution.
Installation of interconnecting pipes
The length of the interconnecting pipes of the units should
be as short as possible.
The maximum admissible distances to the circuit and the
standard pipe diameter are indicated in the tables and
graphs below (without changing the pipe outlet diameter of
the units).
Drain connections, VCH 20 to 90A outdoor
When there are horizontal sections of over 20 metres, it is
unit
convenient to have the suction line tilt 2% in the direction of
Install the drain pipes of each tray through a siphon.
The drain line must have a minimum slope of 2 cm. per each
metre in length.
The unit connections are made of copper piping with an
exterior diameter of 28.5.
Attention:
When the heat pump is operating at outdoor temperatures
of less than 5° C, the drain pipe could be obstructed due to
freezing.
So, if installed in exteriors, it is convenient to take this possibility into account, installing an electric heater at the drain
connection and around the antivibratory elements of the
the compressor.
- The maximum allowable flow in any section is 15 m/s.
- With the limitations indicated and without changing the
diameter of the outgoing unit pipes, no siphons are needed.
- The liquid should have a minimum of 1° C of subcooling at
the intake of the expansion valve, so as to avoid accumulation of gas in the ascending liquid lines before entering the
expansion system.
- For interconnecting lines of over 25 metres, oil should be
added (30 gr/m. of length).
Layout 1 (Outdoor unit up)
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Pipes to be used
When installing the pipes that join the two units, take special
care in checking that the pipes used are kept clean and dry
prior to installation.
It is advisable to take the following recommendations into
account:
- Use cooling quality copper pipes only (K or L type,
S/ASTMB88).
- Do not work outside when raining.
- The ends of the pipes should remain closed throughout
the installation.
- Do not leave the filter-dryers nor the compressor out in the
open.
- When welding, use low melting point rods. These should
contain 5% silver minimum.
- While welding and as long as the pipe remains hot, maintain
a current of dry nitrogen so as to avoid rust and scaling
inside the pipe. This could cause contamination and obstructions.
- Do not use strippers at the copper-copper joints.
- Connection to the units should be carried out by using the
flaring method.
Insulation of refrigerant pipes
L: Total piping length (vertical + horizontal sections)
in course and in one only direction.
H: Vertical distance between units.
A: Cooling liquid line.
B: Cooling gas line.
Layout 2 (Indoor unit up)
Draining and drying
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Since the interconnecting distribution pipes to the coil are
installed in the outdoor unit, both the larger and the smaller
diameter pipes are on the relative low pressure side of the
system.
Consequently, to avoid condensed water from the pipes
dripping on the floor, both must be insulated with adequate
insulation. The thickness of same should be at least 8 mm.
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Air does not act as refrigerant because it cannot be liquefied
by the compressor.
The air and humidity that remain in the cooling system have
undesirable effects, such as those listed below. Consequently,
they should be eliminated completely.
- High pressure increases.
- Consumed power increases.
- The performance of the unit decreases.
- The water contained in the air can freeze and block the
capillaries.
- Water can cause the corrosion of certain parts of the circuit
and the deterioration of the compressor.
Process
In each circuit:
1- Connect a vacuum pump and a service pressure
gauge.
2- Carry out a vacuum of up to 50 microns, minimum.
3- Check for leaks.
L: Total piping length (vertical + horizontal sections)
in course and in one only direction.
H: Vertical distance between units.
A: Cooling liquid line.
B: Cooling gas line.
10
Refrigerant charge
The refrigerant charge is calculated with a pipe length of
7.5 meters.
See the refrigerant charge in the table below, by models
and size.
Refrigerant charge and pipe diameters
Nominal charge
R-410A
(Kg.)
Number of
circuits
Gas line diameter
Liquid line diameter
Additional charge, grs.
(per metre)
L
Maximum length
in straight
sections of interconnecting
pipes (m)
VCH 20A/VIR 25A
8.5
1
1 1/8" (28.5 mm)
1/2" (12.7 mm)
112
50 *
60
VCH 25A/VIR 25A
8.5
1
1 1/8" (28.5 mm)
1/2" (12.7 mm)
112
50 *
60
VCH 30A/VIR 40A
12
1
1 1/8" (28.5 mm)
5/8" (15.87 mm)
170
50
60
VCH 40A/VIR 40A
12
1
1 1/8" (28.5 mm)
5/8" (15.87 mm)
170
50
60
VCH 45A/VIR 45A
9.5 x 2
2
1 1/8" (28.5 mm)
1/2" (12.7 mm)
112
50
60
VCH 60A/VIR 60A
10.5 x 2
2
1 1/8" (28.5 mm)
5/8" (15.87 mm)
170
50
60
VCH 75A/VIR 75A
15 x 2
2
1 3/8" (35 mm)
7/8" (22 mm)
333
50
60
VCH 90A/VIR 90A
16 x 2
2
1 3/8" (35 mm)
7/8" (22 mm)
333
50
60
Model
LE
Maximum equivalent length
of interconnecting pipes
(m)
* Starting from a total of 20 m. in length of straight sections (horizontal and vertical) of interconnecting pipes between units, a minimum 7-litre suction
accumulator should be installed in the gas line (of larger diameter).
Maximum length (L): This is the sum of the lengths of all
horizontal and vertical straight sections in one single direction (liquid or gas).
Maximum equivalent length (LE): This is the sum of the
lengths of all straight sections of the interconnecting pipes
(liquid or gas) in one single direction, plus the equivalent
length of the accessories (basically elbows and bends). The
equivalent length due to elbows and bends can be seen in
the following table:
Example:
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90° bend (long radius)
3/8"
0.3
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0.4
0.3
5/8"
0.5
0.4
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Accessory equivalent lengths in meters
Ext. pipe diameter
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3/4"
0.5
0.4
7/8"
0.6
0.5
1 - 1/8"
0.7
0.6
1 - 3/8"
1
0.7
1 - 5/8"
1.2
0.8
L= 2 + 3 + 3 + 6 + 4 + 7 + 6 + = 31
31 < therefore, 50% is correct
To calculate the equivalent length of the interconnecting pipes we use,
just as we would for the pressure drop, the data of one of the liquid lines;
that is to say 1/2" outer diameter. As we see in the diagram, there are
4 elbows with an equivalent length of 0.5 m. (as per table) and 2 bends
of 0.4 (as per table). Therefore, to make sure that the pipe equivalent
length is not over the admissible maximum, we have:
LE = 2 + 3 + 6 + 4 + 7 + 6 + 4 (0.5) + 2 (0.4) = 22.8 m.
33.8 < therefore, 60 % is correct
Note: The elbows and 45° bends (used in siphons, for example) have half
the equivalent length of the 90° bends.
11
Adjusting the refrigerant charge
For lengths over or under 7.5 m., the nominal charge should
be increased or decreased by the grams indicated in the
corresponding table, depending upon whether the length of
the liquid line has been increased or decreased.
Check to see whether the refrigerant is correct by measuring
overheating. In normal summer conditions between 5 and
10° K is correct.
electronic control board will not be powered and the unit will
not operate. In this case, interchange two of the main power
supply intake of the unit.
Service valves
Thermostat connection
Connection of the indoor fan VIR 25A to 90A
Should the phase sequence (R-S-T) be correct but the indoor
fan turns in the opposite direction, interchange two phases
at the bottom of the fan contactor.
To connect the thermostat to the control board use a screened
10 x 0.22 communication cable.
Setting the electronic board
For start-up and once the accessories are installed, power
the units. To have the electronic board respond in accordance
with the accessories installed, press the "test" key for about
two seconds, until the red LED goes off.
Selecting cool only operation
There are 3/8" suction and discharge service valves that are
useful for a quick and correct total drain.
Checking for leaks
Once the charging through the 1/4" nozzles located in the
circuit is complete, check for leaks.
Application of R-410A refrigerant
Due to the characteristics of the refrigerant, its evaporation,
condensation and discharge temperature, its high operating
pressure in the units, and the specific requirements needed
for efficient operation (free of humidity and dirt), it is obligatory
to have a specialized group of technicians, with a certificate
of aptitude, handle the refrigerant.
Wiring
Electrical connections
The established national regulations must be followed at
all times.
Each unit is supplied with a circuit board to which the power
supply is connected by means of a fuse main switch or an
automatic switch.
This circuit board includes a phase detector to insure the
electric sequence is R-S-T. Should this not be the case, the
12
To set the VCH outdoor unit in cool only mode set, on the
YKlon A1 board, microswitch (S1) No. 5 to position ON. It is
necessary to turn the board power supply of to read out the
new configuration.
Rotational direction of the Scroll compressors
The Scroll compressors and the fans operate correctly in one
single rotational direction. When turning the unit on, make
sure the rotational direction is correct.
If it is not correct:
- The compressor does not compress.
- It makes a strange noise.
- The consumption of amperage is reduced.
- Excessive overheating.
All motors are factory wired to rotate in the correct direction.
WARNING
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 tightly.
Do not power or operate the unit until all pipes and electrical connections are made. Make sure the power supply
is connected correctly to the units, as shown in the wiring
diagrams.
Limits of use
Model
20
Voltage limits
Summer
cycle
Heat
pump
Winter
cycle
25
30
40
Min./Max.
45
60
75
90
342 / 457
WB ° C
min./max.
15 / 23
15 / 23
15 / 23
14 / 23
14 / 23
14 / 23
14 / 23
14 / 23
DB ° C
min./max.
20 / 32
20 / 32
20 / 32
20 / 32
20 / 32
20 / 32
20 / 32
20 / 32
Outdoor temperature (1) (2)
DB ° C
min./max.
10 / 50
10 / 50
10 / 48
10 / 50
10 / 50
10 / 50
10 / 50
10 / 50
Incoming air temperature to
indoor coil (3)
DB ° C
min./max.
10 / 27
10 / 27
10 / 27
10 / 27
10 / 27
10 / 27
10 / 27
10 / 27
Outdoor temperature (4)
DB ° C
min./max.
-20 / 20
-20 / 20
-20 / 20
-20 / 20
-20 / 20
-20 / 20
-20 / 20
-20 / 20
Incoming air temperature to
indoor coil
Notes: WB = wet bulb. DB = dry bulb.
(1) With the condensation control option the limit is -10° C. (2) With nominal indoor and outdoor flows. (3) The units can operate for a short period of
time at an indoor temperature of 10° C. (4) Below -10° C, the emergency electric heater or the hot water coil (optional) remain operative.
YKlon control board
Failures are indicated by the red LED of the board (V3) by
means of communications with the DPC 1 thermostat and
the activation of the K5 relay with the output of the 24 VAC
R phase at terminal AL of connector J2.
For further information please see the Technical Information
of the YKlon control board.
The equipment is controlled by means of a resident software
in the main board. This system operates in accordance with
the position of the microswitches on the main board. The
control algorithm also varies in accordance with the accessories detected by the board and installed on the unit.
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13
Power supply and interconnecting wiring diagram
Power supply
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Electrical characteristics
Outdoor units
Fan
Outdoor fan motor
Out. - Ind.
Compressor
Model
Power
supply
V.ph.Hz
Nominal Starting
amperage amperaA
ge A
Total
Total
Total maTotal
Power
nominal nominal
ximum maximum Automatic
supply
power amperage power amperage switch (K
cable
(Equi(Equip(Equi(Equip- curve) (1)
Nominal
section
pment)
ment)
pment)
ment)
A
amperage
mm² (2)
kW
A
kW
A
A
Indoor fan motor
Power
supply
V.ph.Hz.
kW
Nominal
amperage
A
kW
VCH 20A
400.3.50
8.5
74
400.3.50
1.5
2.5
0.75
1.8
6.7
13
9
17
20
4
VCH 25A
400.3.50
11.8
111
400.3.50
1.5
2.5
0.75
1.8
8.3
16
11
20
25
4
VCH 30A
400.3.50
15
118
400.3.50
3
4.9
1.5
2.7
12
22
17
29
32
6
VCH 40A
400.3.50
19.3
140
400.3.50
3
4.9
1.5
2.7
14
27
19
33
40
10
VCH 45A
400.3.50
2 x 12
95
400.3.50 2 x 2.2
2 x 3.4
1.5
3.1
17
33
24
44
50
10
VCH 60A
400.3.50
2 x 15
118
400.3.50 2 x 2.2
2 x 4.4
2.2
4.6
23
43
31
55
63
16
VCH 75A
400.3.50
2 x 19
140
400.3.50
2x4
2 x 7.9
3
4.7
32
59
39
76
80
25
VCH 90A
400.3.50
2 x 25
198
400.3.50
2x4
2 x 7.9
4
7.0
39
72
49
86
100
35
Important: The dimensioning of the automatic switch and power supply lines is orientative and should be corrected in accordance with the site conditions. distance between
units and legislation in force.
Notes: 1.- K curve (DIN. VDE 0660-104). 2.- Based on copper conductors.
14
Electrical characteristics
Indoor units
Model
Power supply
V.ph.Hz
Nominal power
(kW)
Nominal amperage
A
Starting amperage
A
Power supply cable
section
mm2
VIR 25A
400.3.50
0.75
1.8
8
4 x 1.5
VIR 40A
400.3.50
1.5
2.7
17
4 x 1.5
VIR 45A
400.3.50
1.5
3.1
17
4 x 1.5
VIR 60A
400.3.50
2.2
4.6
22
4 x 1.5
VIR 75A
400.3.50
3
4.7
36
4 x 1.5
VIR 90A
400.3.50
4
7
42
4 x 2.5
Important: The dimensioning of the power supply lines is orientative and should be corrected in accordance with the site conditions, distance between
units and legislation in force.
Prior to approving the installation
Make sure that:
- Voltage is always between 198
and 254 V in 230 V units, and 342
- 436 in 400 V units.
- The recommended power supply
cable section is at least a minimum.
- The need of regular cleaning
of the air filters has been notified.
- The condensed water drain is perfect and there are no leaks in the
water circuit.
- The guarantee card has been
filled out.
- Maintenance instructions have
been given, or a periodical
check-up contract has been
signed.
- The user has received operating
instructions.
- The rotational direction of the
fans is correct.
15
Maintenance of the units
sure not to damage them. Since the units are exposed to
the outdoor environment, it may be necessary to use water
and an detergent for cleaning. In this case, always apply
from inside to the exterior, and up and down.
- Outdoor air intake: If the unit includes any of the accessories, such as an economizer or a return fan, the dampers
should be serviced by checking correct operation of their
components (shafts, fins, motor).
- Refrigerant circuit: At the beginning of each cooling and
heating season, check carefully: Operating pressures,
control elements, temperature variations, and carry out
any other checks needed.
- Mechanical and electrical operation: Also at the beginning of each season, check the amperage of all motors,
the conditions of electrical connections and the operation
of the safety controls.
The bearings of both the indoor as well as the outdoor fan
motors are of the permanent lubrication type and require
no maintenance.
- Integrity of the structure and components of the unit:
Check the conditions of the outdoor structure and components of the unit, the non-existence of impacts or dents
and correct fastening of the bolts.
Check correct closing of the access doors, including the
conditions of the sealing gaskets and the locks.
- Hot water coil: If the equipment is equipped with this
accessory: At the beginning of the heating season, check
the operation of the control elements, the water in the
system and the purging of air in the coil. Depending upon
the area and installation, and if necessary, make sure the
proportion of antifreeze is correct.
To assure proper operation of the units with minimum electric
consumption and a long operating life, a regular maintenance
schedule should be established.
The following table recommends the frequency of the usual
maintenance operations, although it may be necessary to
vary these, depending upon the operating and ambient
conditions of each unit.
Qualified technical personnel only should carry out maintenance operations, updating the log of all maintenance.
Attention: Prior to accessing the interior of the units disconnect all power supplies.
- Outdoor and indoor fan belts: Check belt conditions and
tension. If replaced with new belts, these should be of the
same type and gauge as the originals, and tension should
be checked within the next 24 hours of operation.
- Air filters: Slide them out of the units on their guide rails
and wash.
- Indoor coil: A visual inspection is recommended when
servicing the filters. The entire surface of the fins must be
kept free of dirt. If it requires cleaning, use a soft brush or a
vacuum cleaner, making sure not to damage the fins. Never
use water hoses in the interior of the compartment.
- Condensed water tray and siphon: Eliminate all dirt and
residues. Make sure the water drain and the siphon are not
obstructed. Make sure the water is evacuated correctly.
Prime the siphon (fill with water) if necessary.
- Outdoor coils: Eliminate all dirt and residues found on
the surface of both sides of the coils. Clean the surface
of the fins with a soft brush or a vacuum cleaner, making
Frequency
1 month
Belts (indoor/outdoor fans)
Air filters
2 months
Annually
X
X
Indoor coil (evaporator)
X
Water tray and siphon
X
Outdoor coils (condenser)
X
Outdoor air intake (accessory)
6 months
X
Refrigerant circuit
X
Mechanical and electrical operation
X
Structure and components integrity
X
Hot water coil (accessory)
X
16
Technical characteristics
General dimensions mm.
VCH 20A and 25A
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General dimensions mm.
VCH 30A and 40A
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General dimensions mm.
VCH 45A and 60A
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General dimensions mm.
VCH 75A and 90A
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General dimensions mm.
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General dimensions mm.
VIR 45A and 60A
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Cooling diagram
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23
Nominal performances
Outdoor unit
Indoor unit
Summer
Winter
Model
Air flow m³/h
Model
Air flow m³/h
Cooling
capacity W
Consumption (W)
E.E.R.
Heating
capacity W
Consumption (W)
C.O.P.
VCH 20A
6 235
VIR 25A
4 590
16 800
5 900
2.85
21 500
5 680
3.79
VCH 25A
6 235
VIR 25A
4 590
20 600
7 480
2.75
23 200
6 840
3.39
VCH 30A
11 975
VIR 40A
7 500
28 700
10 250
2.80
32 300
9 950
3.25
VCH 40A
11 975
VIR 40A
7 500
32 400
12 810
2.53
39 300
12 870
3.05
VCH 45A
17 250
VIR 45A
9 000
43 500
14 810
2.94
47 400
13 750
3.45
VCH 60A
20 340
VIR 60A
10 500
54 100
20 860
2.60
53 000
20 000
2.80
VCH 75A
25 200
VIR 75A
13 700
76 100
29 210
2.61
77 700
27 560
2.82
VCH 90A
25 200
VIR 90A
16 000
87 300
34 920
2.50
89 900
33 190
2.71
Test conditions
Summer
Voltage
400
Interconnecting
pipes length
Winter
Outdoor temp. °C
7.5 metre
Indoor temp. °C
WB
DB
WB
DB
WB
DB
WB
35
24
27
19
7
6
20
12
Correcting factors for the heating capacities
Correcting factors for cooling capacities
Cooling capacity correcting factors for flows that differ from
the nominal flows of the indoor coil.
80
90
100
110
120
130
Total capacity
0.960
0.980
1
1.016
1.032
1.046
Sensible capacity
0.945
0.973
1
1.038
1.075
1.118
Comp. absorbed
power
0.980
0.990
1
1.009
1.017
1.025
Correction of the real temperature of air intake to the outdoor
coil for flows that differ from the nominal values.
Flow %
Correction in °C on real
temperature of air going
to the outdoor coil
24
70
5
Indoor temp. °C
DB
Correcting factors
Flow %
Outdoor temp. °C
80
3
90
1.5
100
0
110
-1
120
-2
Outdoor unit air temperature °C WB
Indoor unit air
intake temperature °C DB
14
10
6
0
-8
23
1.20
1.04
0.96
0.77
0.58
20
1.25
1.10
1.00
0.80
0.69
17
1.30
1.13
1.04
0.83
0.63
Correction of the real temperature of intake air to the outdoor
unit for flows that differ from the nominal values.
Flow %
70
80
90
100
110
120
130
Correction in °C on
real temperature
of air intake to the
outdoor unit
-2
-1.5
-0.5
0
0.5
1
1.2
130
-2.5
Capacity correcting factors in accordance with the length and height between units
Heating capacity
Cooling capacity
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H = Vertical distance between the indoor and outdoor units.
LE = Equivalent length of pipes between the indoor and outdoor units. Consider one line only.
H = (>0), or (<0). Position of the indoor unit with regard to the outdoor unit.
Sound level (Nominal flow and static pressure available)
OUTDOOR. Sound spectrum per dB (A) octave band
Models
125 Hz
250 Hz
500 Hz
1 000 Hz
2 000 Hz
4 000 Hz
8 000 Hz
Power sound
level
dB (A)
8 000 Hz
Power sound
level
dB (A)
VCH 20A
VCH 25A
VCH 30A
VCH 40A
VCH 45A
VCH 60A
VCH 75A
VCH 90A
INDOOR. Sound spectrum per dB (A) octave band
Models
125 Hz
250 Hz
500 Hz
1 000 Hz
2 000 Hz
4 000 Hz
VIR 25A
VIR 40A
VIR 45A
VIR 60A
VIR 75A
VIR 90A
* Our reverberation chamber does not allow us to measure the sound pressure level at 63 Hz, and therefore the determination of the NC (Noise Criteria
ISO) will be carried out as of 125 Hz.
In the case of having to deduct the sound pressure value to 63 Hz, add between 0 and 10 dB to the pressure obtained at 125 Hz.
25
Sensible cooling capacities
Sensible capacity (W)
Model
Dry outdoor
air temperature °C (DB)
25
VCH 20A
VIR 25A
35
45
25
VCH 25A
VIR 25A
35
45
25
VCH 30A
VIR 40A
35
45
25
VCH 40A
VIR 40A
35
45
26
Humid intake
air temperature °C (WB)
Total capacity
Dry intake air temperature to coil °C (DB)
Compressor
absorbed
power
22
24
27
29
W
W
W
W
W
kW
22
20 160
5 996
8 828
13 076
15 912
4.08
19.5
18 144
9 552
12 384
16 632
18 144
4.28
17
16 800
13 294
16 126
16 800
16 800
4.47
22
18 648
5 501
8 333
12 581
15 413
4.62
19.5
16 800
9 069
11 901
16 149
16 800
4.86
17
15 456
12 106
14 938
15 456
15 456
5.10
22
16 800
4 948
7 780
12 028
14 860
5.35
19.5
15 120
8 517
11 349
15 120
15 120
5.59
17
13 776
12 109
13 776
13 776
13 776
5.83
22
24 720
7 532
10 364
14 612
17 448
5.38
19.5
22 248
11 061
13 893
18 141
20 978
5.63
17
20 600
14 829
17 661
20 600
20 600
5.89
22
22 866
6 900
9 732
13 980
16 812
6.08
19.5
20 600
10 449
13 281
17 529
20 361
6.40
17
18 952
13 352
16 184
18 952
18 952
6.72
22
20 600
6 198
9 030
13 278
16 110
7.04
19.5
18 540
9 750
12 582
16 830
18 540
7.36
17
16 892
13 331
16 163
16 892
16 892
7.68
22
34 440
10 361
14 738
21 303
25 686
6.64
19.5
30 996
15 838
20 215
26 781
30 996
6.95
17
28 700
21 641
26 018
28 700
28 700
7.27
22
31 857
9 499
13 876
20 441
24 818
7.51
19.5
28 700
15 000
19 377
25 943
28 700
7.90
17
26 404
18 997
23 374
26 404
26 404
8.30
22
28 700
8 539
12 916
19 481
23 858
8.69
19.5
25 830
14 043
18 420
24 985
25 830
9.09
17
23 534
19 587
23 534
23 534
23 534
9.48
22
38 880
11 872
16 249
22 815
27 198
8.82
19.5
34 992
17 323
21 700
28 265
32 650
9.24
17
32 400
23 149
27 526
32 400
32 400
9.66
22
35 964
10 875
15 252
21 817
26 194
9.98
19.5
32 400
16 356
20 733
27 298
31 675
10.50
17
29 808
20 142
24 519
29 808
29 808
11.03
22
32 400
9 767
14 144
20 709
25 086
11.55
19.5
29 160
15 254
19 631
26 196
29 160
12.08
17
26 568
20 786
25 163
26 568
26 568
12.60
Sensible cooling capacities
Sensible capacity (W)
Model
Dry outdoor
air temperature °C (DB)
25
VCH 45A
VIR 45A
35
45
25
VCH 60A
VIR 60A
35
45
25
VCH 75A
VIR 75A
35
45
25
VCH 90A
VIR 90A
35
45
Humid intake
air temperature °C (WB)
Total capacity
Dry intake air temperature to coil °C (DB)
Compressor
absorbed
power
22
24
27
29
W
W
W
W
W
kW
22
52 080
15 976
21 638
30 131
35 801
10
19.5
46 872
23 015
28 677
37 170
42 841
10.47
17
43 400
30 560
36 222
43 400
43 400
10.95
22
48 174
14 630
20 292
28 785
34 447
11.31
19.5
43 400
21 711
27 373
35 866
41 527
11.90
17
39 928
27 766
33 428
39 928
39 928
12.50
22
43 400
13 135
18 797
27 290
32 951
13.09
19.5
39 060
20 225
25 887
34 380
39 060
13.69
17
35 588
27 376
33 038
35 588
35 588
14.28
22
64 200
19 879
26 398
36 176
42 704
13.44
19.5
57 780
27 952
34 471
44 249
50 779
14.08
17
53 500
36 659
43 178
52 956
53 500
14.72
22
59 385
18 194
24 712
34 490
41 009
15.20
19.5
53 500
26 322
32 841
42 619
49 138
16.00
17
49 220
32 905
39 424
49 202
49 220
16.80
22
53 500
16 324
22 842
32 620
39 139
17.60
19.5
48 150
24 467
30 986
40 764
47 282
18.40
17
43 870
32 686
39 205
43 870
43 870
19.20
22
91 320
28 477
37 304
50 546
59 387
17.89
19.5
82 188
39 375
48 203
61 445
70 288
18.74
17
76 100
51 185
60 013
73 255
76 100
19.60
22
84 471
26 051
34 879
48 120
56 948
20.24
19.5
76 100
37 032
45 860
59 101
67 929
21.30
17
70 012
46 954
55 782
69 024
70 012
22.37
22
76 100
23 362
32 190
45 431
54 259
23.43
19.5
68 490
34 367
43 195
56 436
65 264
24.50
17
62 402
45 481
54 309
62 402
62 402
25.56
22
104 760
32 625
42 844
58 172
68 407
22.34
19.5
94 284
45 249
55 468
70 797
81 034
23.41
17
87 300
58 916
69 135
84 464
87 300
24.47
22
96 903
29 848
40 067
55 396
65 615
25.27
19.5
87 300
42 566
52 785
68 114
78 333
26.60
17
80 316
53 753
63 973
79 301
80 316
27.93
22
87 300
26 769
36 989
52 317
62 536
29.26
19.5
78 570
39 514
49 733
65 062
75 281
30.59
17
71 586
52 384
62 603
71 586
71 586
31.92
27
Nominal flows
The cooling and heating capacities of the corresponding taNominal flow
Model
bles are valid for the following nominal flows. For other flows,
apply the correcting factors of the corresponding table.
Minimum flow
Indoor fan nominal
available
pressure
Maximum flow
m3/h
m3/s
m3/h
m3/s
m3/h
m3/s
Pa
VIR 25A
4 590
1.3
3 600
1
5 500
1.5
117
VIR 40A
7 500
2.1
6 000
1.7
8 300
2.3
118
VIR 45A
9 000
2.5
7 200
2
12 600
3.5
130
VIR 60A
10 500
2.9
8 400
2.3
12 600
3.5
137
VIR 75A
13 700
3.8
11 000
3.1
17 500
4.9
125
VIR 90A
16 000
4.4
12 800
3.6
17 500
4.9
175
Performances of indoor fan assembly: Standard and with High Speed Drive
Available static pressure (Pa)/Consumed power (W)
Flow m3/h
Unit
VIR 25
Fan assembly
Code
3 600
3 900
4 590
4 250
4 900
5 200
5 500
Pa
W
Pa
W
Pa
W
Pa
W
Pa
W
Pa
W
Pa
W
-
Standard
-
172
720
156
790
137
825
117
895
92
965
-
-
-
H.S.D.
611991087
267
900
253
980
-
-
-
-
-
-
-
-
-
-
H.S.D.M.
611991088
267
900
253
980
238
1 040
222
1 100
200
1 160
180
1 220
158
1 290
Unit
Fan assembly
Code
VIR 40
Standard
H.S.D.
611991089
6 000
Pa
W
153 1 070
242 1 280
6 500
Pa
W
150 1 100
241 1 340
7 000
Pa
W
137 1 200
233 1 460
Flow m3/h
7 500
Pa
W
118 1 305
217 1 585
7 800
Pa
W
105 1 355
206 1 655
8 000
Pa
W
98
1 390
200 1 700
8 300
Pa
W
85
1 440
188 1 760
10 500
Pa
W
141 2 030
12 000
Pa
W
65
2 400
12 600
Pa
W
52
2 570
Flow m3/h
Unit
Fan assembly
Code
VIR 45
Standard
H.S.D.
H.S.D.M.
Unit
9 000
Pa
W
130 1 490
188 1 720
188 1 720
611991091
611991090
7 200
Pa
W
150 1 375
203 1 575
203 1 575
7 800
Pa
W
146 1 405
201 1 615
201 1 615
8 400
Pa
W
141 1 430
197 1 650
197 1 650
Fan assembly
Code
8 400
9 100
9 800
Pa
W
Pa
W
Pa
W
Pa
W
Pa
W
Pa
W
Pa
W
Standard
-
178
1 475
175
1 600
160
1 750
137
1 920
122
2 065
90
2 270
50
2 450
H.S.D.
611991092
277
1 865
276
2 010
266
2 170
246
2 360
-
-
-
-
-
-
H.S.D.M.
611991093
277
1 865
276
2 010
266
2 170
246
2 360
234
2 510
206
2 700
172
2 940
Flow m3/h
VIR 60
10 500
11 100
11 800
12 600
Flow m3/h
Unit
VIR 75
Fan assembly
Code
11 000
12 000
12 900
13 700
15 000
16 300
17 500
Pa
W
Pa
W
Pa
W
Pa
W
Pa
W
Pa
W
Pa
W
97
2 450
65
2 775
28
3 000
Standard
-
170
1 660
156
1 830
140
2 010
125
2 170
H.S.D.
611991091
289
2 150
282
2 380
271
2 640
260
2 830
-
-
-
-
-
-
H.S.D.M.
611991094
289
2 150
282
2 380
271
2 640
260
2 830
235
3 200
207
3 600
175
3 930
Flow m3/h
Unit
VIR 90
Fan assembly
Code
12 800
15 000
16 000
16 500
17 000
17 500
W
Pa
W
Pa
W
Pa
W
Pa
W
Pa
W
Pa
W
Standard
-
240
2 570
222
2 910
200
3 150
175
3 420
161
3 575
146
3 730
131
3 900
H.S.D.
611991095
399
3 350
388
3 770
374
4 090
-
-
-
-
-
-
-
-
H.S.D.M.
611991096
399
3 350
388
3 770
374
4 090
354
4 450
342
4 630
328
4 830
313
5 000
H.S.D.: High Speed Drive.
H.S.D.M.: High Speed Drive with motor included.
28
14 000
Pa
Indoor fan High Speed Drive
H.S.D. and H.S.D.M. configuration for VIR units
Fan pulley
Motor pulley
Motor
Automatic switch
Code
Prim.
dia.
Type
Shaft
dia.
Prim. dia.
Type
Shaft
dia.
Power
(kW)
Amount
Adjustment (1)
(A)
Code
H.S.D. VIR 25
611991087
125
SPZ (x 2)
25
-
-
-
-
-
-
-
H.S.D.M. VIR 25
611991088
140
SPZ (x 2)
25
95
SPZ (x 2)
24
1.1
1
3
-
H.S.D. VIR 40
611991089
150
SPZ (x 2)
25
-
-
-
-
-
-
-
H.S.D. VIR 45/75 611991091
160
SPZ (x 2)
25
-
-
-
-
-
-
-
H.S.D.M. VIR 45
611991090
160
SPZ (x 2)
25
100
SPZ (x 2)
28
3
1
6
006776702
H.S.D. VIR 60
611991092
140
SPZ (x 2)
25
-
-
-
-
-
-
-
H.S.D.M. VIR 60
611991093
140
SPZ (x 2)
25
95
SPZ (x 2)
28
3
1
6
-
H.S.D.M. VIR 75
611991094
160
SPZ (x 2)
25
-
-
-
4
1
9.5
006776704
H.S.D. VIR 90
611991095
160
SPZ (x 3)
25
-
-
-
-
-
-
-
H.S.D.M. VIR 90
611991096
160
SPZ (x 3)
25
-
-
-
5.5
1
12.5
006776705
Description
H.S.D.: High Speed Drive.
H.S.D.M.: High Speed Drive with motor included.
(1) Important: Adjustment is orientative and should be adapted to the conditions of the installation.
H.S.D. and H.S.D.M. codes for VIR units
Description
Code
VIR 25
611991087
X
611991089
High Speed
Drive
VIR 40
VIR 45
VIR 60
VIR 75
X
611991091
X
611991092
X
X
611991095
611991088
611991090
High Speed
Drive with motor
included
611991093
611991094
611991096
VIR 90
X
X
X
X
X
X
29
Outdoor fan services
Available static pressure
Air flow
Absorbed power
Model
VCH 20A
VCH 25A
VCH 30A
VCH 40A
VCH 45A
VCH 60A
VCH 75A
VCH 90A
30
mm WG
Pa
m3/h
m3/s
W
0
0
7 055
1.96
1 090
4
39
6 420
1.78
985
5.1
50
6 235
1.73
955
7.96
78
5 715
1.59
905
12.03
118
4 990
1.38
785
16
157
3 580
0.99
685
0
0
12 700
3.54
2 900
2.04
20
12 500
3.47
2 800
4
39
12 175
3.38
2 750
5.1
50
11 975
3.33
2 700
7.96
78
11 460
3.18
2 660
12.03
118
10 470
2.91
2 350
13.97
137
9 880
2.74
2 225
16
157
9 200
2.56
2 065
0
0
18 340
5.09
3 860
5.10
50
17 250
4.79
3 540
10.20
100
15 860
4.41
3 140
15.30
150
13 480
3.74
2 600
17.35
170
12 390
3.44
2 370
17.86
175
12 000
3.33
2 290
0
0
21 250
5.90
5 910
5.10
50
20 340
5.65
5 610
6.02
59
20 170
5.60
5 550
10.20
100
19 280
5.36
5 220
15.30
150
17 780
4.94
4 680
20.41
200
16 040
4.46
4 090
25.51
250
13 630
3.79
3 360
30.61
300
9 660
2.68
2 560
0
0
25 650
7.13
8 400
5.10
50
25 200
7.00
8 240
15.30
150
24 100
6.69
7 830
22.96
225
22 670
6.30
7 300
25.51
250
22 020
6.12
7 010
30.61
300
19 840
5.51
6 080
35.71
350
17 320
4.81
5 100
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31
32
83
82
81
PHASE
CONTROL
104
1
1
NOTE:
6
5
M
3~
4
3
6
5
E4
1
2
3
M
3~
4
5
6
OUTDOOR
FAN-2
M5
VENTILADOR
EXTERIOR-2
(19)
KM5
E5
14 22
13 21
4
2
N
X3..
THE COMPONENTS INCLUDED IN THESE BOXES ARE NOT
SUPPLIED BY THE MANUFACTURER.
OUTDOOR
FAN-1
M4
VENTILADOR
EXTERIOR-1
2
1
6
5
4
3
2
1
3
1
-INDOOR FAN "M3" IS TO BE CONNECTED AT JOB SITE.
SEE ELECTRICAL CHARACTERISTICS TABLE.
E3
(13)
KM4
14 22
13 21
F5
(16)
F9
2A
L
X3..
LOS COMPONENTES INCLUIDOS EN ESTOS RECUADROS
NO SON SUMINISTRADOS POR EL FABRICANTE
INDOOR
FAN
1
M3
VENTILADOR
INTERIOR
M
3~
4
3
6
5
4
3
2
1
9,4
9,4
5,1
-EL VENTILADOR INTERIOR "M3" SE CONECTARA EN OBRA.
VER TABLA DE CARACTERISTICAS.
E2
(11)
2
1
14 22
13 21
F4
(9)
9,4
9,4
4,2
303
NOTA:
COMPRESSOR-2
6
COMPRESSOR-1
M
3~
4
M2
COMPRESOR-2
E1
(17)
2
M1
COMPRESOR-1
M
3~
6
KM3
6
5
4
3
2
1
116
4
105
117
2
106
118
5
110
122
3
4
111
123
1
6
112
2
F3
(8)
113
KM2
109
5
114
124
5
108
3
115
128
3
107
1
119
129
1
F2
*
120
130
CONTROL
FASES
103
5
8,7
32
( ) IF THE UNIT IS SWITCH ON AND GREEN LED V2 FROM A1 BOARD IS
SWITCH OFF CHECK PHASE SECUENSE L1, L2, L3
121
6
6
32
5,1
F5 (A)
REG.
1
302
(10)
102
3
32
5,1
25
4,2
F4 (A)
REG.
125
4
5 x 35
100
32
3,8
16
126
KM1
101
1
5 x 25
80
25
F3 (A)
REG.
F2(A)
127
2
EO
5 x 16
63
16
F1(A)
(05)
300
F1
X1... L1 L2 L3 N
*
5 x 10
50
Q2 (A) SECCIÓN
SECTION "B" mm2
(04)
( ) SI LA UNIDAD TIENE TENSIÓN Y EL LED VERDE V2 DE LA PLACA A1
ESTA APAGADO, VERIFICAR QUE LA SECUENCIA DE FASES L1, L2,
L3 SEA CORRECTA
VCH-90A
VCH-75A
VCH-60A
VCH-45A
MODEL
(03)
301
FC
(10)
L1 L2 L3 N
INSTALAR EN OBRA
INSTALL AT JOB SITE
(02)
R1
KM1
(10)
22
RESISTENCIA CARTER 2
CRANKCASE HEATER 2
I-2576-1a (1/2)
VCH-45, 60, 75, 90A
400.3.50
R2
22
21
21
KM2
(17)
3
2
304
L1 L2 L3
Q2
Sección "B" mm 2 Cu
Q1
L1 L2 L3 N
400V, 3~ , 50Hz, N, PE
(01)
305
( )
*
(00)
4
b
a
Electric diagram, VCH 45, 60, 75, 90A, 400.3.50
RESISTENCIA CARTER 1
CRANKCASE HEATER 1
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33
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Configuration of switches
Cooling capacities (VCH only)
If the outdoor VCH unit is used with a different indoor unit
other than the VIR range, this can be selected from the fol-
lowing table. This coupling is recommended only for use of
the cool only model (see cool only operation, page 12). Keep
in mind that the indoor unit will need an expansion valve.
Cooling capacities
Model
Compressor
Amount
Saturated suction temperature
(°C)
Temperature of air intake to outdoor coil
25
30
35
40
45
-5
0
VCH 20A
1
+5
+7
+10
-5
0
VCH 25A
1
+5
+7
+10
-5
0
VCH 30A
1
+5
+7
+10
-5
0
VCH 40A
1
+5
+7
+10
-5
0
VCH 45A
2
+5
+7
+10
-5
0
VCH 60A
2
+5
+7
+10
-5
0
VCH 75A
2
+5
+7
+10
-5
0
VCH 90A
2
+5
+7
+10
Cooling capacities at 25° C of suction gas without subcooling.
35
Accessories and Options
Indoor unit accessories
Model
VIR
25A
40A
45A
60A
75A
90A
15 kW
O
O
30 kW
O
O
30 kW
O
O
40 kW
O
O
A
A
O
O
A
A
Internal electric heater
10 kW
O
Internal electric heater
15 kW
O
Internal electric heater
10 kW
O
Internal electric heater
20 kW
O
Internal electric heater
Internal electric heater
Internal electric heater
Internal electric heater
50-m. connecting cable
A
Hot water coil (20 m.)
O
A
Hot water coil (20 m.)
A
A
O
O
O
Hot water coil (20 m.)
Hot water coil (20 m.)
Vertical conversion kit for model
A
Vertical conversion kit for model
A
Vertical conversion kit for model
A
A
Vertical conversion kit for model
H.S.D. / H.S.D.M.
Economiser (20 m.)
O
A
O
A
O
A
O
A
O
A
O
A
Communication cable (economiser
or water coil) 50 m.**
A
A
A
A
A
A
O
O
O
O
40A
45A
60A
75A
90A
O/A
O/A
O/A
O/A
O
O
O
O
O/A
O/A
O/A
O/A
O
O
O
O
Fan soft start
Outdoor unit
accessories
Model
VCH
20A
25A
30A
Vertical conversion kit
A
A
A
A
Head pressure control LAK-1*
O
O
O
O
O/A
O/A
O/A
O/A
O
O
Head pressure control LAK-2*
Tray heater - 1
Tray heater - 2
Fan soft start
Weight of VIR accessories
Models
VIR 25
VIR 40
VIR 45/60
VIR 75/90
Economiser
kg
54
69
78
90
Electric heater
kg
15
18
20
29
Hot water coil
kg
16
20
37
43
Extra weight for Cu/Cu coil
kg
14
19
38
56
VCH 20/25
VCH 30/40
VCH 45/60
VCH 75/90
Weight of VCH accessories
Models
Head pressure control
kg
16
18
22
28
Extra weight for Cu/Cu coil
kg
31
47
75
109
* Without protection against outdoor conditions.
(O) Optional: Factory fitted.
(A) Accessory: Supplied separately.
Note: An electric heater and a hot water coil cannot be installed in the same machine.
**Note: If the indoor unit is equipped with an economiser and a hot water coil, only a 50-m. cable is needed.
36
Hot Water Coil
General information
This hot water coil (optional) is factory-installed; it includes
the control board, cables and all material needed for connection at job site.
Located inside the VIR unit and fastened to the coil with the
anchor points supplied.
Technical specifications
- 3-way valve: Bronze body.
- Electric actuator: 0-10 V, 24 VAC proportional control.
- Control board.
- Temperature probe for water intake, B17.
- Temperature probe for air impulse, B16.
- Manual air purger.
- Operating connection cables between the control panel of
the outdoor unit (VCH) and the water coil (length, 20 m.).
As an option, a connection kit for 50 m.
This accessory includes the following components:
- Coil: With steel sheet frame, copper tubing and aluminium
fins.
Location of components
VIR - 25A
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1 3-way valve
2 Actuator
3 Water intake probe, B17
4 Air impulse probe, B16
5 Water coil control
6 Automatic air purger
7 Water connecting pipe intake
8 Water connecting pipe outlet
37
VIR - 45/60
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VIR - 75/90
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1 3-way valve
2 Actuator
3 Water intake probe, B17
4 Air impulse probe, B16
5 Water coil control
6 Automatic air purger
7 Water connecting pipe intake
8 Water connecting pipe outlet
38
Installation
As all components are factory-fitted, at the job site it is necessary to merely connect the 3-way valve intake and output
to the how water line.
Turn main power supply to the unit off. See Figs. 1, 2, 3, 4
and wiring diagram for coil connection details.
Commissioning
1. Remove the access panel to the 3-way valve, side panel
motor side.
2. The water intake and outlet connections are carried out
from the front (remove the valve actuator [ref. 2] for welding and reinstall afterwards.
Attention: It is recommendable to install manual valves
on the intake and outlet lines, so as to be able to isolate
the unit from the general installation if necessary.
3. Hot water coil control board.
The control board, the water intake probe and the air
impulse probe are factory-installed. The wiring of the
valve actuator has also been completed as per the wiring
diagram.
When installing at the job site, connect the telephone
cable between the hot water coil accessory board (J15
or J16) and the YKlon board or the board of the second
compressor located in the outdoor unit (VCH).
Also connect the 24 VAC power supply hose supplied.
Attention: It is recommendable to install the impulse
probe (B16) in the impulse duct at one meter from the
indoor unit (VIR), for improved display and readout.
VIR Unit
Once the water intake and outlet connections are completed, turn the power supply to the machine on.
Make sure the green LED (V1) on the coil control board
(A6) is flashing (accessory board configured).
Should this not be the case, carry out a search and configuration of accessories by pressing the test button on
the Yklon board (A1) for over three seconds, until the red
LED goes on. Once this search and configuration process begins, the red LED goes on and stays on until this
operation is completed. Once it goes off, make sure the
green LED (V1) on the coil board is flashing to indicate
the accessory has been configured.
4. Check valve actuator operation.
A potentiometer, P1, on the coil control board allows
modulating the 3-way valve manually to check its operation.
The actuator will go back to its operating position after 30
seconds.
5. Jumper S2 (ENTALP) selection
By defect, factory-set to open, selects the priority of the
compressors in heat pump models. If closed, selects
operating priority of the hot water coil over the compressors. Adequate for installations with very economical hot
water.
6. Water pump operation relay output.
The control board has a relay (K1) that, through connector
J14, gives output to a volt-free contact for the operation
of an installation water pump.
Hot water coil control board
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Led
V1
V1
V1
V2
V2
Status
Off
On
Flashing
On
Flashing
Indication
Board is not connected
Board is not in service
Normal operation
Favourable condition
Antifreeze protection
39
Electric actuators, proportional control
Attention:
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 tightly.
VA - 7472 - 9001 (VIR - 25A and 40A)
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40
Allows generating heat, if conditions are favourable, by modulating the valves in accordance with the impulse probe, in an
attempt to reach a maximum temperature of 50° C.
Up to four stages of the hot water coil can be controlled to
start in accordance with the demand manager, and are limited
by the impulse temperature (30, 40, 45 and 50° C).
Favourable conditions are understood as water temperature
being over 30° C 5’ after the valve opens. Once the system
is in operation, constantly check to make sure conditions
remain favourable.
Should unfavourable conditions be detected, and there is a
call, 20’ will be timed and conditions will be checked again.
If opening is over 20%, water pump relay K1 is activated. If
opening is below 5%, this relay is deactivated.
If conditions are favourable, the yellow LED (V2) will be on
permanently. If not, it will be off.
When water temperature is below 3° C, the pump is activated and the valve opens 100% to protect the hot water coil
against the risk of freezing, and this condition is maintained
until the water temperature rises above 6° C. This protection
is in operation as long as the fan is off, even if the machine
is off or in lockout. As long as the antifreeze protection is in
operation, the yellow LED (V2) flashes. As long as the hot
water coil heating is in operation, the indoor fan is also on.
There is a minimum air impulse temperature protection of
15° C when this accessory is installed. In this way, we avoid
the discomfort that can be created when there is a very high
renewal percentage with low outdoor temperatures and the
indoor fan in continuous mode. If there is a call for cool, the
water coil valve closes.
The VA-7472-9001 (VIIR-25A and 40A) valve actuator is
powered by 24 VAC by means of the red and black cables.
The control signal is from 0 to 10 VAC between the blue and
white cables. With 0 VAC the valve is closed (by-pass) and
with 10 VDC the valve is open 100%.
The actuator has 6 input selection jumpers to coincide with
the operating range desired.
Jumper 1.
Selection of the anti-sticking function. The actuator carries out a complete cycle of open and closed valve every
24 hours. Then it goes back to the position indicated by
the control. By factory default, function activated.
Jumper 2 and 3.
Selection of input voltage. Jumper at 2 and 3 (0 to
10 VDC). Jumper at 2 (5 to 10 VDC). No jumper at 2 and 3
(0 to 5 VDC). By factory default, position 2 and 3 with
jumper (0 to 10 VDC).
Jumper 4.
No function. By factory default, with jumper.
Jumper 5.
Configures the direct/inverse action jumper so that the
valve shaft goes in the desired direction. By factory default,
without jumper, inverse action (A).
Jumper 6.
No function. By factory default, with jumper.
Actuator selection jumpers
VA - 7472 - 9001 (VIR - 25A and 40A)
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long (stroke length of over 1/2 inch) stroke selection
jumper. By default, factory-set to long position (L).
Jumper 3.
Configures the direct/inverse action jumper so that the
valve shaft goes in the desired direction. By default, factory-set to lower position, inverse action (A1).
Jumper 4.
Configures the failure position jumper. If the signal is lost in
the actuator (connection closed), the actuator, by default,
will go to the established position. Factory-set to closed
position.
Actuator selection jumpers
VA - 7152 - 1001 (VIR - 45A and 90A)
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The VA-7151-1001 (VIIR-45A and 90A) valve actuator is
powered by 24 VAC between terminals 1 and 2. The control
signal is from 0 to 10 VAC between terminals 3 and 4. With
0 VAC the valve is closed (by-pass) and with 10 VDC the
valve is open 100%.
The actuator has 4 input selection jumpers to coincide with
the operating range desired (Fig. 5).
Jumper 1.
Selection of input voltage: Upper jumper (0 to 10 VDC),
centre jumper (0 to 5 VDC) and bottom jumper
(5 to 10 VDC). By default, factory-set to upper position
(0 to 10 VDC).
Jumper 2.
Configures the short (stroke lengths of 1/2 inch or less),
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Fig.5
Physical data
For models
VIR 25A
VIR 40A
VIR 45A and 60A
VIR 75A and 90A
Depth pipes
2
2
2
2
Height pipes
16
19
20
22
3/8"
3/8"
1/2"
1/2"
1 069
1 312
1 895
2 155
0.49
0.70
1.32
1.64
1 1/8"
1 1/8"
1 3/8"
1 3/8"
16
20
37
43
Diameter pipes
Length fins
Front area
m2
Intake/output connections
diameter (weld)
Weight
kg
41
Data with water, without GLYCOL
Water temperature (intake - outlet)
Water
volume in
circuit (L)
Unit
VIR 25A
3.7
VIR 40A
VIR 45A
VIR 60A
5
11.5
11.5
VIR 75A
14
VIR 90A
14
Air flow
m3/h
90 - 70
80 - 60
D air temp. Heat. cap.
°K
kW
70 - 50
H2O flow
m3/h
D air temp.
°K
22.3
0.94
18.1
21.6
25.6
1.08
16.5
20.5
27.4
1.15
15.7
2.02
23
36.6
1.55
17.8
53.9
2.27
21
41.7
1.76
16.2
25
56.2
2.38
20.5
43.2
1.84
15.8
37.6
76.7
3.24
31
59.2
2.52
23.9
34.7
88.1
3.74
28.6
68.0
2.88
22
5.58
30.3
107.8
4.57
24.9
83.6
3.53
19.3
H2O flow
m3/h
D air temp. Heat. cap.
°K
kW
Heat. cap.
kW
H2O flow
m3/h
Min. 3 600
36.1
1.51
29.3
29.2
1.22
23.7
Nom. 4 530
41.4
1.76
26.8
33.5
1.40
Max. 5 100
44.4
1.87
25.4
35.9
1.51
Min. 6 000
58.0
2.45
28.2
47.4
Nom. 7 500
65.9
2.77
25.7
Max. 8 000
68.4
2.88
Min. 7 200
93.2
3.96
Nom. 9 000
107.0
4.50
Max. 12 600
131.4
Min. 8 400
102.6
4.36
35.6
84.4
3.60
29.3
65.1
2.77
22.6
Nom. 10 500
117.7
4.97
32.6
96.8
4.10
26.9
74.7
3.17
20.7
Max. 12 600
131.4
5.58
30.3
107.8
4.57
24.9
83.6
3.53
19.3
Min. 11 000
133.6
5.69
35.3
110.0
4.64
29
85.9
3.64
22.7
Nom. 13 700
152.8
6.48
32.4
125.7
5.33
26.7
98.6
4.21
20.9
Max. 16 800
172.0
7.27
29.8
141.5
6.01
24.5
110.8
4.72
19.2
Min. 12 800
146.4
6.19
33.3
120.6
5.11
27.4
94.0
4.00
21.4
Nom. 16 000
167.1
7.06
30.4
137.5
5.83
25
107.7
4.57
19.6
Max. 16 800
172.0
7.27
29.8
141.5
6.01
24.5
110.8
4.72
19.2
- Incoming air to the coil, 18° C
Hydraulic circuit flow/pressure characteristics, hot water coil VIR 25A to 90A
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Air circuit pressure drop
42
Machine
Nominal air flow m³/h
Pressure drop in water coil (Pa)
VIR - 25A
4 590
30
VIR - 40A
7 500
50
VIR - 45A
9 000
32
VIR - 60A
10 500
32
VIR - 75A
13 700
38
VIR - 90A
16 000
41
Wiring diagram VIR 45/90
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43
Internal Electric Heaters for VIR 25A to
90A
The internal electric heaters are designed to provide backup
or complementary heat in the VIR units. On and off cycles
are governed by the air conditioning equipment control system. They are to be fitted on to the internal supports of the
indoor unit.
Technical specifications
These internal electric heaters include the following components:
- Galvanised sheet casing and supports.
- Exposed nickel-chrome wire electric resistances mounted
on steatite supports.
- Control board of auxiliary heater A3 (A3 and A4 in 2 stages).
- Power supply contactor with a 24 V coil.
- Two thermal protectors located at the top of the heater. The
first, with automatic reset, disconnects the heater when a
temperature of 77° C is reached.
The second, accessible from the outside the unit and with
manual reset, disconnects the heater when a temperature
of 138° C is reached.
The 2-stage heaters are quipped with four thermal protectors, two per stage.
- Interlocking with the heat relay of the indoor fan. The unit
control system does not allow the heater to be in operation
in the case of a failure of the indoor fan heat relay.
- Quick connector for interconnecting the unit control panel
and the heater (length 20 m). There is a kit for 50 m connections (option).
Assembly and general dimensions mm.
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General dimensions mm.
VIR 25A
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A
B
C
VIR 45A and 60A
1 160
630
116
VIR 75A and 90A
1 380
700
136
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Assembly and general dimensions mm
Electric box of the VCH unit
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Location of connecting elements and the accessory control of the internal heater, VIR
VIR 25A to 60A
1 STAGE
VIR 40A to 90A
2 STAGES
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46
General characteristics
Automatic
switch (1)
Q1
Power supply
cable section (2)
Front surface
Pressure
drop (3)
A
mm2
m2
Pa
1
20
2.5
0.53
2.9
1
25
4
0.53
2.9
15
1
20
2.5
0.74
4.9
20
30
2
40
6
0.74
4.9
400.3.50
15
22
1
25
4
0.98
7.1
VIR 45 and 60A
400.3.50
30
46
2
50
10
0.98
7.1
VIR 75 and 90A
400.3.50
30
46
2
50
10
0.16
7.1
VIR 75 and 90A
400.3.50
40
60
2
80
25
0.16
7.1
Power supply
Power
Consumption
V.ph.Hz
kW
A
VIR 25A
400.3.50
10
15
VIR 25A
400.3.50
15
22
VIR 40A
400.3.50
10
VIR 40A
400.3.50
VIR 45 and 60A
Heater model
Stages
Notes: 1.- K curve (DIN, VDE 0660-104). 2.- Based on copper conductors. 3.- Considered the nominal air flow of the indoor section.
Dimensions with packing and weights
Heater model
Dimensions with packing mm.
Weight
kg
VIR 25A
Height
720
Width
1 650
Depth
180
VIR 40A
720
1 650
180
18
VIR 45 and 60A
720
1 650
180
20
VIR 75 and 90A
720
1 650
180
29
Installation
Install the electric heater in the VIR unit as follows:
1) In all cases, the established national regulations
should be followed.
2) Disconnect the power supply to the air conditioning
unit.
3) Install the magnetothermal and differential switches
for the heater in accordance with the table of General
Characteristics and the Wiring Diagrams.
4) Remove the access panels of the VCH units.
5) Unpack the accessory, opening the top of the box. Make
sure the heater assembly has not been damaged during
transportation. Check the ceramic insulation and that the
heater wires are not in contact with any metal parts.
6) Remove the side covers of the VIR unit and fit the
electric heater on the two internal vertical supports of
the coil, making the tab coincide with the drilled hole
(VIR 25A and 40A). On models VIR 45A to 90A, fit the
electric heater on the tray guide and fasten the fan
with the side sheets and to the tray guides, with the
self-threading screws supplied. Make sure the reset
push button of the F9 (F9 and F11 in 2-stage) thermal
protector is accessible and at the top.
See Assembly and General Dimensions diagram.
7) Mount the control support on the side of the unit, or
within the electrical box, depending upon the VIR unit,
and fasten with the screws provided.
8) Install the A3 board (A3 and A4 in 2-stages) in the
electric box of the VCH unit. Then connect hoses W1,
W2 (W1, W2, W3 and W4 in 2-stages), included with
this accessory, between the X2 connecting strip and
the VCH control board to the VIR unit. Connect the
power supply cables to connecting strip X1 of the VIR
unit (automatic switch 12 or automatic switch F21 in
2-stages). See wiring diagram in accordance with the
corresponding model.
9)
10)
11)
12)
13)
15
The installer should complete the electric circuit of the
heater by fitting an air flow switch F14 (F14 and F15 in
2-stage) at the most convenient point of the ducts to
make sure the heater operates only when there is sufficient air flow.
Connect power supply to the VCH/VIR units and the
heater.
For configuration of the accessory, press the test button
on control board A1 for over 2 seconds, until the red
LED goes on. Configuration is finalized once the LED
goes off.
Check operation of the heater by selecting the Emergency Heat mode at the ambient thermostat of the air
conditioning unit.
Assemble the covers of the VCH/VIR units.
Note: Should the system respond incorrectly, see the Operation section of the VCH/VIR Installation Instructions. This
section details the control functions of the A1 electronic
board with regard to the heater, as well as its configuration,
identification of incidents, etc.
Loose cables can cause overheating of the terminals or incorrect
operation of the unit. Fire hazards may also exist. Therefore, make
sure all cables are connected tightly.
47
Wiring diagram
Heater 10, 15kW, 400.3.50 /
VIR 25A, 40A, 45A and 60A
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48
Wiring diagram
Heater 20, 30, 40kW, 400.3.50 /
VIR 40A, 45A, 60A, 75A and 90A
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49
Vertical air discharge for VIR 25A to 90A
The VIR 25A to VIR 90A units require a conversion that
includes:
Upper panel 5 , front panels 6 (one only on model 25A),
belts and front fan supports 7 .
1.-Remove the top 1 , front 2 and side 3 panels, as
well as the fan front supports 4 and the fan itself.
2.-Orient and fasten the fan to the top support 5 , along
with the conversion kit, keeping the 20 mm. projection out
the mouth of the fan on the panel surface.
3.-Once the fan is fastened to the top panel 5 , install same
on the unit.
4.-Fit angles 7 to the unit and fasten the fan to these angles.
5.-If the conversion kit includes new belts, install these between the motor and fan pulleys.
6.-Install the blind front panels 6 (one only on VIR 25A)
included in the kit.
7.-Lastly, install the standard panels 3 .
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1 Horizontal discharge top panel
2 Horizontal discharge front panels
3 Side panels
4 Front fan supports
5 Vertical discharge top panel
6 Vertical discharge front panels
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7 Vertical angles
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VIR 25A (1 turbine)
VIR 40A
VIR 45A/60A
VIR 75A/90A
50
A
1 365
1 747
2 247
2 660
B
822
822
807
928
C
484
443.5
571
664.5
D
397
313
396
475
E
234
313
381
F
439
439
424
483
G
343
343
343
405
Vertical air discharge conversion for VCH 20A,
25A, 30A and 40A
This Kit allows converting the standard horizontal air discharge, in outdoor units VCH 20A to 40A, to a vertical discharge. The conversion process is as follows:
1.-Remove and discard the upper panel 1 and the grids
2 (Fig. 1).
2.-Remove the fan, standard motor assembly on support "A"
(Fig. 2).
3.-Change the motor and its support, the fastening rod, the
support and screws to B in the 8 diameter drilled holes
proportioned at the limits indicated, making sure the pul-
leys are aligned (the centre of the tensor will be at about
20 mm. from the face of the fan) (Fig. 3).
4.-Fasten the fan to the tabs "C" and supports "D" of the
upper panel 3 , before or after mounting same on the
machine, with the new self-threading screws included in
the Kit (Fig. 3).
5.-Install the upper panel 3 and the plenum cover 4
(Fig. 4).
6.-If the machine is to be used without ducts, install, in the
fan mouths, the protecting grids supplied with the Kit (selfthreading screws are included for assembly).
General dimensions mm.
Fig.1
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51
General dimensions mm.
Fig.4
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Model
E
F
G
H
I
J
K
L
M
VCH 20A and 25A
793
1 364
273
1 063
211
342
258
290
151
VCH 30A and 40A
781
1 741
328
1 440
310
405
311
341
71
52
Vertical air discharge conversion for VCH 45A,
60A, 75A and 90A
This Kit allows converting the standard horizontal air discharge, in outdoor units VCH 45A to 90A, to a vertical discharge. The conversion process is as follows:
1.-Remove and discard the upper panel 1 and the grids 2
(Fig. 1).
2.-Remove the fan, standard motor assembly on support "A"
(Fig. 2).
3.-Change the motors and their supports, the fastening rods,
the support and nuts to B in the 8 diameter drilled holes
proportioned at the limits indicated, making sure the pul-
leys are aligned (the centre of the tensor will be at about
20 mm. from the face of the fan) (Fig. 3).
4.-Fasten the fan to the tabs "C" and supports "D" of the
upper panel 3 , before or after mounting same on the
machine, with the new self-threading screws included in
the Kit (Fig. 3).
5.-Install the upper panel 3 and the plenum cover 4
(Fig. 4).
6.-If the machine is to be used without ducts, install, in the
fan mouths, the protecting grids supplied with the Kit
(self-threading screws are included for assembly).
General dimensions mm.
Fig.1
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Fig.3
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53
General dimensions mm.
Fig.4
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Model
E
F
G
H
I
J
K
L
M
N
VCH 45A and 60A
781
2 240
394
1 990
281
479
562
439
21
408
VCH 75A and 90A
898
2 660
394
2 410
45
475
759
500
30
412
54
Condensation Control VCH 20 to 90A
This option controls the head pressure in the summer cycle
by varying air flow in the outdoor coils. This air flow variation
keeps the head pressure constant when outdoor temperatures are low.
Operation
By means of the pressure detected by the control unit
through the analogical pressure switches installed in the
cooling circuit, and carrying out the appropriate calculations
in accordance with the settings, this control unit gives off an
analogical signal that positions the opening of the dampers
in such a way that the previously programmed head pressure
is maintained.
Programming and adjustment
Keys and display (description of the control unit)
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key:
8)
- In standby mode, displays pressure switch 2 value.
- In programming mode, it is used to move on to the previous parameter and to decrease the values of same.
Necessary settings
- 1 compressor unit:
VCH 20 to 40
Parameter
St1
CØØ
PØ1
CØ3
CØ4
CØ5
C1Ø
C13
C14
C15
C16
C19
C30
Value
26
3
2
Ø
Ø%
1ØØ%
Ø
6
Ø
Ø.Ø
44.8
Ø
4
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- 2-compressor unit:
VCH 45 to 90
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1)
2)
3)
4)
5)
6)
7)
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Display:
- Displays the value of the pressure switches.
- Displays the code of the alarms produced.
Decimal LED:
- Is lit when the value has a decimal part.
OUT LED:
- Is lit constantly when the 0v output is different.
- Flashes when the output is at the maximum programmed
value.
AUX LED:
- Is lit or flashes, depending upon the operating mode
selected.
SEL key ���
- Displays and/or selects the set point value.
- If pressed along with the ���� key for 5 seconds, ØØ
appears on the display. Using the
keys, select
the access code to access the main programming mode,
parameters "Cxx".
�������� key:
- If pressed for 5 seconds, the basic programming mode
is accessed, parameters "Pxx".
- If an alarm is produced, pressing once deactivates the
acoustic signal. If pressed a second time, the alarm is
reset.
key:
- In standby mode, displays pressure switch 1 value.
- In programming mode, it is used to move on to the next
parameter and to increase the values of same.
Parameter
St1
CØØ
PØ1
CØ3
CØ4
CØ5
C1Ø
C13
C14
C15
C16
C19
C30
Value
26
3
2
Ø
Ø%
1ØØ%
Ø
6
Ø
Ø.Ø
44.8
2
4
Programming sequence
1.-Press ��� for 2 or more seconds, until "St1" appears
on the display. After displaying "St1" for one second, the
present "St1" value will appear.
2.-By means of the
keys, change this value to the
value indicated in the above tables.
3.-Press ��� to confirm the new value. "St2" will appear on
the display, but it should not be programmed. Press ���
once again to exit the programming mode.
4.-To program CØØ, press ��� and ���� simultaneously for
5 seconds, until " ØØ " appears on the display.
5.-By means of the
and
keys, enter the password "77"
to access the "Cxx" parameters. Press ��� to confirm.
6.-Use the
and
keys to move through the different
"Cxx" parameters, until reaching "CØØ ".
7.-Press ��� to view current value.
8.-By means of the
and
keys, set the values indicated
in the above tables, as required.
55
9.-Press ��� to confirm the change.
10.- Press �������� to save the changes and exit the programming mode.
11.- To program "PØ1", press �������� for 5 seconds, until
"PØ1" appears on the display.
12.- Press ��� to access the current value.
13.- Use the
and
keys to modify the value in accordance with the above tables.
14.- Press ��� to confirm the change.
15.- Press �������� to save these values and exit the programming mode.
16.- To program the remaining "Cxx" parameters, press ���
and �������� simultaneously for 5 seconds, until "ØØ"
appears on the display. Enter the password "77" and
press SEL to confirm.
17.- By means of the
and
keys, move through the
different "Cxx" parameters, and then use ��� to access
and validate the values and the
and
keys to
modify these parameters in accordance with the above
tables.
Horizontal air discharge assembly
0.- Check to see the packing is not damaged. Unblock the
motor and make sure the slits open and close correctly
by applying force.
1.- Disconnect power supply to the unit.
2.- Discard the 2 " " supports and the 2 " " gaskets
provided for the vertical air discharge version.
3.- Install the lower support supplied, as in the figure. Fasten the support with the self-threading screws of the
accessory.
4.- Lean the dampers on the previously fitted support, with
the motor at the point nearest the control panel.
5.- Install the top support and fasten it to the chassis of the
unit by means of the drilled holes and the self-threading
screws supplied.
6.- Fasten the dampers to the lower and top supports with
the self-threading screws supplied.
7.- Install the side gaskets as shown in the figure.
8.- Open the control unit panels, as well as the right rear
panel (compressor zone).
9.- Install control CP1 and the relays RL1 and RL2 (on
VCH-45/90A only) on the DIN guide on connecting strip
X1.
10.- Move contactors KM1 and KM2 (compressors) so as
to attach the side auxiliary contacts supplied.
11.- Screw the pressure switches on to the upper inputs that
are not connected to the corresponding high cooling
circuits. But first unscrew and remove the plugs that
protect same.
12.- Connect the pressure switch hoses and fasten them by
means of the clamps supplied, along with the existing
wiring cables.
13.- Insert the pressure switch hoses through the hole indicated on the electric box diagram, using the 19 mm. Ø
wall hole guide supplied.
14.- Connect the pressure switch hoses to the control unit
(for 2-compressor hoses only).
15.- Remove the damper motor cover, insert the damper
hoses and connect as indicated on the corresponding
56
diagram.
16.- Drill a 22 mm. Ø hole on the left side front panel (next
to damper motor) and insert the guide. Insert the motor
hose.
17.- Then insert the motor hose through the guide at the
base of the electric box and connect the cables.
18.- Connect all cables supplied, in accordance with the
corresponding wiring diagram.
19.- Turn main power supply on and program the control
unit.
20.- Close all panels.
Vertical air discharge assembly
0.-
1.-
2.-
3.-
4.-
5.-
6.-
7.-
8.-
9.-
10.-
11.-
12.-
13.-
14.-
15.-
16.-
Check to see the packing is not damaged. Unblock the
motor and make sure the slits open and close correctly
by applying force.
Disconnect power supply to the unit.
Discard the top support " " and the bottom support
" " or " ", as per models, provided for the horizontal
air discharge version.
Install the " " type vertical discharge supports at the
points indicated in the vertical discharge assembly
diagram, by means of the self-threading screws supplied. On models VCH 20 to 60, both " " supports
are fastened on the roof. On models VCH 75 to 90, the
" " support for the coil side is fastened on the roof, and
on the panel side it is fastened on the vertical surface
of the longitudinal reinforcement of the roof.
Lean the dampers on the previously fitted supports,
with the motor at the point nearest the control panel.
Fasten the damper to the supports with the self-threading screws supplied.
Fasten the vertical discharge gaskets to the supports
with the self-threading screws supplied.
Open the control unit panels, as well as the right rear
panel (compressor zone).
Install control CP1 and the relays RL1 and RL2 (on
VCH-45/90A only) on the DIN guide on connecting
strip X1.
Move contactors KM1 and KM2 (compressors) so as
to attach the side auxiliary contacts supplied.
Screw the pressure switches on to the upper inputs that
are not connected to the high cooling circuits. But first
unscrew and remove the plugs that protect same.
Connect the pressure switch hoses and fasten them by
means of the clamps supplied, along with the existing
wiring cables.
Insert the pressure switch hoses through the hole
indicated on the electric box diagram, using the
19 mm. Ø wall hole guide supplied.
Connect the pressure switch hoses to the control unit
(for 2-compressor hoses only).
Remove the damper motor cover, insert the damper
hoses and connect as indicated on the corresponding
diagram.
Drill the 22 mm. Ø hole on the left side front panel (next
to damper motor) and insert the wall hole guide for the
damper hose. Insert the motor hose.
Then insert the motor hose through the guide at the
base of the electric box and connect the cables.
17.- Connect all cables supplied, in accordance with the
corresponding wiring diagram.
18.-Turn main power supply on and program the control
unit.
19.- Close all panels.
Checking
1.-Program the thermostat in the winter cycle, start the compressors and make sure the dampers open completely.
2.-Turn the unit off and program the thermostat in the summer cycle.
3.-Start the compressors and check to be sure that when
the pressure begins to rise above the programmed
26 bar, the dampers begin to close.
Once this pressure is reached, the dampers open to a
specific position, depending upon the outdoor temperature. With a very low outdoor temperature, the dampers
should be fully closed.
Location of components
Horizontal air discharge
VCH 20 to 90A
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57
Vertical air discharge
VCH 20 - 90A
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Machine
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A
D
VCH-20 to 25A
115
363
VCH-30 to 40A
60
363
VCH-45 to 60A
20
463
VCH-75 to 90A
29
463
58
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VCH-20A to 40A
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VCH-45 to 90A
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59
VCH-20A to 40A
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SECTION
1
1
1
1
1
1
1
1
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CABLE
COLOUR
Red
White
White
Brown
Brown
Brown
Red
White
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DIAGRAM
FROM
X2-R
X2-B
CP1-5
CP1-15
KM1-43
RL1-14
X2-4
RL1-A2
VCH-45A to 90A
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CABLE
LENGTH
200
200
80
600
350
300
300
300
TO
CP1-1
CP1-2
KM1-44
RL1-11
CP1-16
RLI-A1
X2-B
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1
2
3
4
5
6
7
8
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Nº CABLE
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1
2
3
4
5
6
7
8
9
10
11
12
13
60
�
CABLE
COLOUR
Red
White
White
Brown
Brown
Brown
Brown
Brown
Brown
Red
White
Red
White
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Nº CABLE
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SECTION
1
1
1
1
1
1
1
1
1
1
1
1
1
FROM
X2-R
X2-B
CP1-5
CP1-15
KM2-44
KM1-43
KM2-43
RL1-11
RL2-11
X2-14
RL1-A2
X2-24
RL2-A2
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DIAGRAM
TO
CP1-1
CP1-2
KM2-44
KM1-44
KM2-43
RL1-14
RL2-14
CP1-16
RL1-A1
X2-B
RL2-A1
X2-B
CABLE
LENGTH
250
250
80
900
250
250
900
100
220
500
500
500
500
Wiring diagrams
11
43
4
RL1
12
A1
KM1
RL1
44
A2
White
Red
B
White
White
15
R
B
CP1
16
RL1 - 4-way valve relay
CP1 - Proportional control
MC1 - Damper motor
SP1 - Pressure probe, circ. 1
1
White
Red
2
4
5
6
7
9
10
CP1 parameters
White
St1 - 26
C00 - 3
P01 - 2
C03 - 0
C04 - 0%
C05 - 100%
C10 - 0
C13 - 6
C14 - 0
C15 - 0.0
C16 - 44.8
C19 - 0
C30 - 4
Black
Black
White
SP1
R
B
Brown
Grey
2
5
1
MC1
Damper motor MC1
Microswitches MC1 (damper motor)
(*)
ON
OFF
1
I-2603a
LAK VCH-20A to 40A
2
(*) The position of the damper in standby (0v set point between 1 and 5 of MC1)
should be open. With signal (0-10 Vdc), the damper should close.
Set switch 2 to ON/OFF to carry out this logic.
61
Wiring diagrams
11
43
43
44
44
24
Red
A1
RL1
Red
A1
RL2
A2
A2
White
B
CP1
16
White
B
RL1 and RL2 - 4-way valve relays
CP1 - Proportional control
MC1 - Damper motor
SP1 - Pressure probe, circ. 1
SP2 - Pressure probe, circ. 2
1
White
B
14
White
15
Red
RL2
12
White
R
12
11
KM2
KM1
RL1
2
4
5
6
7
9
10
White
Black
Black
St1 - 26
C00 - 3
P01 - 2
C03 - 0
C04 - 0%
C05 - 100%
C10 - 0
C13 - 6
C14 - 0
C15 - 0.0
C16 - 44.8
C19 - 2
C30 - 4
Black
White
CP1 parameters
White
SP1
R
B
Brown
Grey
2
5
1
MC1
Damper motor MC1
SP2
Microswitches MC1 (damper motor)
(*)
ON
OFF
1
2
(*) The position of the damper in standby (0v set point between 1 and 5 of MC1)
should be open. With signal (0-10 Vdc), the damper should close.
Set switch 2 to ON/OFF to carry out this logic.
62
I-2604a
LAK VCH-45A to 90A
Tray Heater
This flexible cable heater can be used in cold climates to
avoid the forming of ice and the subsequent obstruction at
the tray drain of the heat pumps.
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This accessory includes:
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Models VCH 20 to 40A
- 1 Flexible cable heater with a thermostat.
- 2 m. of 50 mm. self-adhesive aluminium tape.
- Connecting hose
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Models VCH 45 to 90A
- 2 Flexible cable heaters with a thermostat.
- 4 m. of 50 mm. self-adhesive aluminium tape.
- Connecting hose
Installation
Heater characteristics:
Current: 230.1.50
Total power: 80 W
Total length: 3 m.
Active heater length: 2 m. (contact with the coil)
Extreme cool: 1 m. (open-air cable and connecting strip
connection).
Heater activation temperature: Indoor ambient 4° C.
VCH 20 and 40A
1- With the power supply turned off, remove the front and
side panels.
2- Fasten the end with the thermostat to the side corner on
the inside.
To fasten said end, use the self-adhesive aluminium tape
strip that is inserted.
3- Locate the cable heater over the tray.
4- Fasten the cable heater to the tray with the self-adhesive
aluminium tape supplied. Avoid covering the tray drain.
5- Connect the two terminal cables of the heater to terminals
L1 and N (230.1.50) on the connecting strip.
VCH 45 and 90A
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63
Economiser
These instructions provide the necessary information for correct installation, at the job site, of the economiser dampers.
The economiser is located in the return section of the VIR
indoor unit (see Fig. 1).
The control board, cables and all material necessary for
installation are supplied with this accessory.
Technical specifications
This accessory includes the return and outdoor air dampers
and a drive motor with a return spring modulated by temperature control (enthalpy probes optional).
This accessory is comprised of:
- Damper assembly, with motor, for outdoor air.
- Damper assembly, with motor, for return air.
- Control board, plastic partitions and protecting cover.
- Temperature sensors for return and outdoor air and air
impulsion.
- Wiring assembly, ready for connection to unit wiring.
- A set of panels and supports.
- Screws and wall hole guides for assembly.
Installation
Turn main power supply to the unit off by means of main
switch Q1.
Prior to installing the economiser it is indispensable to know
how the outdoor air duct will be connected at the job site.
There are two possibilities: Top or bottom duct (Figs. 1 and
2).
Install the economiser as follows:
1. Assembly of outdoor air intake by means of top duct
(standard configuration). The outdoor air damper will be at
the top, and the economiser cabinet should be confronted
with the frame of the corresponding VIR unit filter. To
fasten, use the screws, nuts and washers supplied. The
panels must be removed first so to insert the screws.
2. Assembly of the outdoor air intake at the bottom duct.
Remove the side supports and fit them on the opposite
side. Then turn the unit fully around, as shown in the
figure. For coupling to the VIR indoor unit, proceed as in
the standard configuration.
3. Position of the of dampers. The stand-by position of the
dampers is: outdoor air closed and return air, open. Check
the position of the dampers.
4. Connection of the economiser control board wiring.
Connect the economiser hose cables as shown on the
wiring diagram: power supply cables (J17, 580 and 581),
accessory communication cable (J16, 700), motor cables
(R-red, C-black, 0-10V-grey), return probe (J13-black),
outdoor probe (J3-white) and impulse probe (J6-yellow).
5. Assembly of return, outdoor and impulse air temperature
sensors. Depending upon the assembly of the dampers,
it is advisable to install the sensor supports as well as the
return (B15), outdoor (B17) and impulse (B16) air temperature sensors at a minimum distance of at least 1 m.
64
from the mouth of the duct connected to the machine.
6. Assembly of enthalpy probe, Ref. C7400A (option not applicable). The enthalpy probes are an optional accessory
that cannot be installed with the VIR unit economiser.
7. J19, J20 and ENTALP jumper selection.
- J19 jumper: Open by default, selects economiser operation. If closed, selects motor-driven damper operation.
- J20 jumper: Open by default, selects outdoor damper
closed with high temperature/smoke alarm. If closed, selects outdoor damper open with high temperature/smoke
alarm.
- ENTALP jumper, S2: Open by default, selects operation
without enthalpy probes.
8. Configuration of economiser control board and adjustment
of minimum opening.
Once this accessory is fitted, along with the necessary
elements, the unit is powered on once again.
Make sure the green LED (V1) of the economiser control
board (A4) is on permanently.
To carry out a search and configuration of accessories,
press the test button on the Yklon board (A1) located on
the outdoor machine for over three seconds, until the red
LED goes on. Once this search and configuration process begins, the red LED goes on and stays on until this
operation is over. Once it goes off, make sure the green
LED (V1) of the economiser board is flashing to indicate
the accessory has been configured.
A potentiometer, P1, on the economiser board allows
modulating the damper manually to check its operation.
The damper will go back to its operating position after
30 seconds.
As long as the indoor fan is on, the damper will be open
proportionally to renew air circulation. Factory set default
value is 10%. This minimum percentage can be set by
means of potentiometer P1, or through the communication
network. To set it with the potentiometer, set the minimum
value until the minimum opening is reached, and then
press configuration button SW1 for 3 seconds to store
this value.
9. Air quality probe (optional).
The air quality probe is equipped with a VOC (volatile
organic compounds) sensor that compares the VOC
concentration in the air with the sensor set point. If this
concentration is greater, the probe activates outlet Y1 by
means of a relay.
The 230 VAC outlet signal between Y1 and N connects
to the 230 VAC to 5VDC conversion board. This board is
to be fitted next to the economiser control board and the
5 VDC signal cable should be connected to J18 on the
economiser board.
If the room thermostat temperature set point is satisfied
and there is a call for air quality, the damper opens to
minimum programmed renovation and the indoor fan turns
on. Then the damper opening is increased in accordance
with the maximum (30° C) and minimum (12° C) impulse
temperatures. If the air quality call signal disappears, or
if the thermostat calls for air quality, or if the thermostat
Caution:
Air quality probe
Allows generating cold air by modulating the outdoor air intake damper. If conditions are favourable, the yellow LED V2
will be on and the damper will adjust to achieve an impulse
temperature of 12° C. Favourable conditions in temperature
mode are understood as an outdoor temperature of below
20° C and, at the same time, below the return temperature.
The yellow LED on the board will be off when conditions are
not favourable.
Whenever the indoor fan is in operation, the outdoor damper
is open proportionally to renew the air in the room. (By default,
10% adjustable value.)
In winter cycle, if the thermostat calls for heat but no heat
phase can be activated due to a failure, the outdoor damper
will remain closed with the indoor fan in operation.
Should the indoor fan fail and this is detected by the Yklon
board, the outdoor air damper closes completely.
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calls for cool or heat, the damper goes back to minimum
renovation. If there is no call from the thermostat and
the indoor fan is in auto mode, the fan turns off and the
dampers close.
The probe can select three levels of air quality, depending
upon the position of the jumper:
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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 tightly.
Operation
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65
Economiser
General dimensions mm.
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Economiser
Weight
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
VIR 25A
54
729
566
1 109
408
159
162
95
63
205
699
140
130
605
40
55
VIR 40A
69
729
639
1 352
408
159
162
131
100
227
898
212
196
605
40
55
VIR 45A / 60A
78
809
739
1 935
508
164
137
101
130
218
1 499
213
112
685
40
55
VIR 75A / 90A
90
729
812
2 205
508
79
142
138
166
228
1 724
260
202
605
40
55
66
Economiser assembly, standard configuration
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The outdoor air damper is at the top. Confront the economiser with the frame of the
corresponding VIR unit. To fasten use the screws, nuts and washers 1 supplied.
To install said screws 1 , first remove the side panels 2 .
Outdoor air at the bottom
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Remove supports 3 from the economiser and fit them on the opposite side,
as shown in the figure. Then turn the unit fully around. For coupling to the VIR
indoor unit, proceed as in the standard configuration.
67
Return, outdoor and impulse air sensor
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Economiser control board
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Led
V1
V1
V1
V2
68
Status
Off
On
Flashing
On
Indication
Board is not connected
Board is not in service
Normal operation
Favourable condition
Wiring diagram
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69
Static starter (Soft Start)
The RSHR4012BV20 starter is a compact control unit with
a motor with AC semiconductors, designed for soft starting
and stopping of three-phase motors for centrifugal fans, with
a rated operational current of up to 12A (5.5 kW). The soft
starts and stops are carried out by means of the voltage
control unit of the motor. It is equipped with internal electro-
magnetic relays that plot the semiconductors during active
operation when the ramps are activated. The starting time,
the stopping time and the initial torque are adjusted by means
of independent potentiometers. The LEDs indicate the status
of the controller. The starter is equipped with a trigger and is
designed to be mounted on a DIN rail.
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Status indicating LEDs
Electrical interconnections
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Operating diagram
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All data subject to change without notice.
70
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