Riello AARIA START Installation And Technical Service Instructions Download Page 17

INSTAllATION

17

A   High  pressure
B   Low  pressure
1   Nitrogen  cylinder
2   Pressure  regulator
3   Pressure gauge unit
4   3-way valve service connection

N2

A

B

1

2

3

4

1   3-way valve service connection

1

 

charge the circuit with nitrogen through the service con-
nection on the 3-way shut-off valve

 

0

Do not use oxygen or acetylene or other flammable or poi-
sonous gases in the refrigerating circuit, as they can cause 
explosions.

 

reach a pressure equal to 0.3 Mpa

 

wait 3 minutes.

 

check that the pressure has not dropped

 

reach a pressure equal to 1.5 Mpa

 

wait 3 minutes.

 

check that the pressure has not dropped

 

reach a pressure equal to 3 Mpa

 

adjust the reached pressure and room temperature

 

leave the circuit pressurised for 1 day

 

check that the pressure has not dropped

If the temperature has changed with respect to the noted 
value consider that the pressure varied by 0.01 Mpa for 1 °C.

If pressure has dropped, detect the leak, fix it and repeat 
the test.

To detect the leak, use a solution of water and soap and 
check all the joints and welds, if any.

Having verified the absence of leakages:

 

create a pneumatic vacuum inside the circuit

Pneumatic vacuum

To create vacuum in the circuit:

 

keep the outdoor unit shut-off valves closed

A   High  pressure
B   Low  pressure
1   Pressure gauge unit
2   Vacuum  pump
3   3-way valve service connection

A

B

1

2

3

 

connect the vacuum pump to the pressure gauge unit

 

connect the pressure gauge unit to the service connection 
on the 3-way shut-off valve

 

completely close the pressure reducing valve of the pres-
sure gauge

 

fully open the low pressure valve of the pressure gauge unit

 

let the vacuum pump work for at least 15 minutes

 

reach a pressure that is close to -0.1 Mpa

 

close the low pressure valve of the pressure gauge unit

 

switch off the vacuum pump

 

wait 5 minutes

 

check that the pressure has not risen again

If the pressure has risen again:

1   2-way  shut-off  valve
2   On-off valve cover plug
3   Hex  wrench
A   Opening by 1/4 of a turn

A

3

1

2

 

open the 2-way shut-off valve by a quarter of a turn

 

close it after 6 seconds so as to allow a small quantity of 
refrigerant into the circuit

 

detect the leak using a solution of water and soap

 

fix the leak

 

recreate the pneumatic vacuum

Take the necessary safety precautions for the system refrig-
erant.

It is forbidden to carry out welding operations with refrig-
erant inside the cooling circuit. If necessary, the refrigerant 
must be recovered and the circuit must be cleaned with ni-
trogen without oxygen.

 

0

It is forbidden to use detergents containing chlorine be-
cause it could react with the refrigerant and corrode the 
copper pipes.

Summary of Contents for AARIA START

Page 1: ...AARIA START SERIES R32 11 2017 cod Doc 0086715 rev 0 EN INSTALLATION AND TECHNICAL SERVICE INSTRUCTIONS...

Page 2: ...mps are compliant with the following European Directives Low Voltage Directive 2014 35 EU Electromagnetic Compatibility Directive 2014 30 EU RoHS Directive 2011 65 EU ErP Directive 2009 125 EC and Reg...

Page 3: ...Place of installation p 12 2 7 Recommended distances p 12 2 8 Positioning p 13 2 9 Installation on old systems or systems in need of upgrading p 14 2 10 Refrigerating connection p 14 2 11 Wiring diag...

Page 4: ...operate carefully so as to avoid damaging the gas circuit and the fin bank 9 Do not place any inflammable object spray cans within a 1 metre radius from the air expulsion 9 According to EU Regulation...

Page 5: ...board that is triggered in order to adjust the flow of refrigerant gas or to stop the unit in case of overtemperature 40 C outdoor air temperature sensor which transmits the de tected value to the el...

Page 6: ...lve 15 Terminal board for electric connec tions 16 Electric panel cover 1 2 3 4 5 6 7 8 9 10 11 12 14 15 16 13 MODEL 35 1 Upper panel 2 Fan protection grille 3 Connections cover 4 Handle for handling...

Page 7: ...xpansion valve 15 Terminal board for electric connec tions 16 Electric panel cover 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 MODEL 70 1 Upper panel 2 Fan protection grille 3 Connections cover 4 Handle fo...

Page 8: ...ed air flow 3 40 4 20 6 00 8 10 kW Absorbed power at rated air flow 0 91 1 13 1 61 2 18 kW COP 3 71 kW kW Capacity at maximum air flow 4 60 5 40 6 90 10 00 kW Absorbed power at maximum air flow 1 50 1...

Page 9: ...tics Power supply 230 1 50 V Ph Hz Compressor Compressor Rotary Type Oil FW50S Type Oil charge 0 32 0 27 0 35 0 52 l Refrigerant R32 Type Refrigerant charge 0 70 0 72 0 95 1 20 kg Fan Fan Axial Type Q...

Page 10: ...ating it During the summertime the cycle is reversed and the thermal energy is extracted from the room air which is cooled and is delivered to the outdoor air A Outdoor unit B Indoor unit 1 Compressor...

Page 11: ...nical Service in English Warranty Spare parts labels energy label etichetta gas refrigerante contact sheet It is also supplied as kit Condensate outlet hose 4 x vibration dampers screws to connect ref...

Page 12: ...ch as it can be dangerous It must be disposed of ac cording to the regulations in force 2 6 Place of installation The location of R AARIA START devices must be determined by the system s designer or b...

Page 13: ...llow for the condensate discharge 9 If the device is installed in an area that is subject to heavy snowfalls place the unit in a raised position so as to pre vent the air flow from being blocked or in...

Page 14: ...1 2 Pollici Charge connection 1 2 Pollici Liquid line connection 6 35 mm Gas line connection 9 52 12 7 mm Charge connection 12 7 mm To access the cooling connections unscrew the fastening screw push d...

Page 15: ...facing down remove the flare nut on the unit connection insert it into the connection pipe flare the tube A Pipe A mm inches mm 6 35 1 4 9 1 9 52 3 8 13 2 12 70 1 2 16 6 15 88 5 8 19 7 1 Key 2 Torque...

Page 16: ...rvice it may be required to open and close the valves A Opening B Closing 1 Service connection blanking plug 2 On off valve shaft 3 Refrigerating pipe attachment 4 On off valve cover plug 5 Hex wrench...

Page 17: ...ut off valves closed A High pressure B Low pressure 1 Pressure gauge unit 2 Vacuum pump 3 3 way valve service connection A B 1 2 3 connect the vacuum pump to the pressure gauge unit connect the pressu...

Page 18: ...9 Carefully check for absence of leakages from the closing point of the plug 9 Do not force beyond the stop point to prevent damaging the shaft and causing leakage as a consequence 9 Once the check h...

Page 19: ...sensor CS TC Defrosting sensor Outdoor air sensor HW Power supply 230V 1F 50Hz CN17 MODEL 35 1 N 3 C 2 L GR GR MODULE BOARD MAIN PCB BOARD BLOCK R W B C W S V R U COMPRESSOR M BL OR P U V W W B AC N A...

Page 20: ...pressor sensor Defrosting sensor Outdoor air sensor TC CS HW 2 12 Electrical connection AARIA START It leaves the factory completely wired and only re quires a connection to the electrical power grid...

Page 21: ...to connect to the terminal board For the sizing of the electrical power cables and safety devices use the following table Model 25 35 50 70 Electrical characteristics Power supply 230 1 50 V Ph Hz Pr...

Page 22: ...and differential protection in stalled near the equipment connect the device to a properly functioning earthing sys tem make sure that the electrical power supply system is com pliant with the current...

Page 23: ...of the above listed controls have problems turn the device off and call the Technical Service immediately 9 Do not touch the device pipes to prevent potential burns 9 Take anti static precautions in...

Page 24: ...erations MUST be carried out under the fol lowing conditions cold device device NOT supplied with electric power suitable personal protection equipment 0 0 It is forbidden to open the access doors and...

Page 25: ...scharge The unit resets automatically when the temperature drops under 110 C After 3 consecutive interventions in 30 minutes the unit resets after problem resolution 9 Fan motor malfunction After 3 co...

Page 26: ...resets after problem resolution 24 Compressor motor overcurrent The unit resets automatically 25 Overcurrent protection for single phase of the compressor The unit resets after problem resolution In...

Page 27: ...rials shall be disposed of separately so as to re cover and recycle them Refrigerant and oil must be recovered and not dispersed into the environment At the end of its ser vice life the device shall b...

Page 28: ...39 0442 630111 fax 39 0442 630371 www riello it As the manufacturer is constantly improving its products the aesthetic or dimensional features the technical data the equipment and accessories indicat...

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