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LARGE SPLIT AIR ‑ AIR VITALITY

SERIES Air Conditioners

VCH 20A to 90A / VIR 25A to 90A

User manual

Ref.: N-40380_EN 0411

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Summary of Contents for VCH-20A

Page 1: ...LARGE SPLIT AIR AIR VITALITY SERIES Air Conditioners VCH 20A to 90A VIR 25A to 90A User manual Ref N 40380_EN 0411 ...

Page 2: ...nections to the control board 9 1 5 2 Thermostat connections 9 1 6 Safety and equipment protection systems 10 1 7 Placing the unit out of service for a planned stoppage or breakdown 10 1 7 1 Placing the unit out of service for a planned stoppage 10 1 7 2 Placing the unit out of service for seasonal stoppage 10 1 7 3 Placing the unit out of service due to breakdown 11 1 7 4 Fault codes for the air ...

Page 3: ...1 User manual ...

Page 4: ...sistant to oil heating Compressor heater Keeps the sump oil warm for easier start up and to prevent oil from being released from the compressor Suction accumulator Connected to the compressor suction pipe this protects it from hammering by liquid Coils These are large and made of copper tubes and aluminium fins They are located inside the unit fully protected against knocks during transportation o...

Page 5: ...s the correct way exchange two phases at the bottom of the fan contactor Dryer filter Connected to the cooling circuit to protect the components from humidity and particles carried by the refrigerant Construction and rust protection features All metal parts of the structure are made of galvanised aluminium steel plate The outdoor parts are treated with oven polymerised polyester paint RAL9002 guar...

Page 6: ...ting supply accessory area are fully insulated The insulation is 5 mm thick 1 1 2 Operating diagram 1 VIR indoor unit A Air from indoors 2 VCH outdoor unit B Air to indoors 3 Indoor fan C Possibility of air to indoors optional 4 Outdoor fan 5 Filter 6 Indoor coil 7 Optional water coil heating resistor etc D Air to outdoors E Air from outdoors F Possibility of air to outdoors option al 8 Compressor...

Page 7: ...energy and a long working life The air intakes and outlets on each VIR model can be configured vertically or horizontally using the optional kit Software installed in the YKN2 Open electronic board provides electronic management for the units In addition a wide range of accessories is available to adapt the units to the specific requirements of each application The air conditioning units in the VC...

Page 8: ...stem a heat pump and as optional auxiliary electrical resistors and hot water coil Depending on the version that forces air to circulate through ducts to adjust the temperature of the building or property where it is installed The air conditioning unit has a start up and setting mechanism by means of a thermostat to manage its operations The unit should only be used for the purposes for which it w...

Page 9: ...C 1 thermostat Should the air conditioning unit become faulty the auto diagnostics system in the unit will identify the source of the fault and will activate the indicator 1 on the DPC 1 thermostat screen The bottom left of the screen will also display a two digit figure 2 to indicate the part affected See Placing the unit out of service due to breakdown see on page 11 Where the thermostat screen ...

Page 10: ...ough previously installed distribution ducts In the case of the condenser the fan pushes fresh air through the coil and then sends it back outdoors A series of filters remove dust particles and pollen etc from the air sent inside the building or property 1 4 2 Heat mode The VCH model can also reverse the cooling circuit operation so that the coils exchange functions and send warm air to the inside...

Page 11: ...or the documents on the thermostat installed with the unit for further details on the start up and adjustment mechanism 1 5 1 Thermostat connections to the control board A Thermostat connection board Board connection terminals X1 To terminal X1 of the DPC 1 thermostat B White To terminal B of the DPC 1 thermostat R Red To terminal R of the DPC 1 thermostat Y1 O B Y2 1 5 2 Thermostat connections 1 ...

Page 12: ...tection system consisting of differential circuit breakers and thermal magnetic switches not supplied by the manufacturer must be installed on site Under no circumstances is the user of the air conditioning unit exposed to live parts Likewise access to moving parts by unauthorised persons is prevented This involves placing appropriate safety locks on all of the removable covers on the unit Unit pr...

Page 13: ...d 12 22 32 High pressure switch outdoor fan thermal switch or compressor module ther mal switch depending on model 13 23 33 Low pressure switch 14 Indoor fan thermal switch 15 25 35 Repeated cold start up or suction temperature 25 C 41 Gas control 1 or resistor 1 fault 42 Gas control 2 or resistor 2 fault 43 Resistor stage 3 fault 44 Resistor stage 4 fault 45 Fault in economiser or hot water coil ...

Page 14: ...ntinues to display the indicator 1 and any fault code 2 or if the air conditioner does not start contact a Johnson Controls Inc Authorised Technical Assistance Service 1 8 Regular maintenance activities for which the user is responsible 1 8 1 Maintenance Schedule The HVAC unit is designed to require as little maintenance as possible Nevertheless to ensure the correct operation of the unit with a m...

Page 15: ...urs of operations Air filters Wash once removed from the unit sliding them out from their guide rails Indoor coil You should visually inspect the coil when performing filter maintenance The complete surface of the fins must be kept clean ATTENTION Never use water hoses inside the compartment Clean the fins using a soft brush or vacuum cleaning taking care not to damage them Condensate tray and dra...

Page 16: ...losure of access doors including the condition of the sealing strip and locks Hot water coil Where the unit is fitted with this accessory check the following at the start of the heating season The control elements System water filling Bleeding of air from the coil NOTE Check that the proportion of antifreeze is correct if necessary depending on the area and the installation 1 8 2 Maintenance respo...

Page 17: ... to this unit Contact a Johnson Controls Inc Authorised Technical Assistance Service for scheduled maintenance on this unit To discover the maintenance operations a Johnson Controls Inc Authorised Technical Assistance Service should regularly perform see Maintenance Schedule see on page 12 PRODUCT DISPOSAL According to Directive 2002 96 EC of the European Parliament and of the Council of 27 Januar...

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