background image

I N STA L L AT I O N ,   O P E R AT I O N   A N D 

M A I N T E N A N C E   I N S T R U C T I O N S

50NZ/NF

Nominal cooling capacity 17,9 - 69,6 kW

Nominal heating capacity 18,4 - 73,0 kW

50 Hz

Vertical package air conditionners

Original document

Summary of Contents for 50NF

Page 1: ...INSTALLATION OPERATION AND MAINTENANCE INSTRUCTIONS 50NZ NF Nominal cooling capacity 17 9 69 6 kW Nominal heating capacity 18 4 73 0 kW 50 Hz Vertical package air conditionners Original document...

Page 2: ...ns 8 Checks at fans 8 Condensate drain connection 8 9 Safety elements 9 High pressure pressostat 9 Low pressure pressostat 9 Magnetothermals for line protection 9 Automatic switch in the control circu...

Page 3: ...e of its vertical construction 50NZ Series Air air packaged cooling units 50NF Series Air air packaged reversible heat pumps After their manufacture all units are charged with refrigerant and are test...

Page 4: ...14 7 13 14 Type Centrifugal Number 1 2 Motor output kW 1 1 1 5 2 2 3 0 1 5 2 2 3 0 Speed r p m 630 680 699 644 680 699 644 Indoor circuit fan Nominal air flow m3 h 4 000 4 600 6 000 7 000 9 200 12 00...

Page 5: ...location 5 TRANSPORT The unit must be lifted and fixed with care and without inclination maximum inclination 15 since it could harm its operation The unit can be handled with a forklift truck taking a...

Page 6: ...d and walls in order that the circuit makes the aspiration of the return air 7 LOCATION AND ASSEMBLING Anchorage for antivibrators A B Minimum free space for commissioning and maintenance operations E...

Page 7: ...th the control in the unit The electrical heaters requested for units already shipped will be sent in a kit and the installer will need to assemble the necessary elements for the operation of the unit...

Page 8: ...tection mesh in the discharge as per the current regulation Air ducts connections Before commissioning check the blade rotation direction and that the axis turns without strokes nor vibrations Once ru...

Page 9: ...l circuit Magnetothermal switch that protects the operation circuit against continuous surges as well as against high currents of short duration short circuits Fans and compressors protection Both the...

Page 10: ...must be emptied Possible water freezing must be avoided glycolling water or by using anti frost thermostat that triggers the circulation pump In models 120 and 160 the hot water coil assembly is carr...

Page 11: ...e way to avoid breakdowns since the analysis of these data makes early detection of anomalies possible or the provision of the necessary means available to ensure that they do not take place Possible...

Page 12: ...l and taken from a can tightly closed until the moment of the charge Note Both the oil type as well as the volume needed for each model are stated in the Technical characteristic tables in chapter 3 R...

Page 13: ...charge fan of the internal circuit Access to the indoor of the frame through this lateral panel Condensates drain pans Access Firstly put the door switch in O position Later unscrew the screws that fi...

Page 14: ...element are open c Timing of anti cycle short does not allow the starting d Open contact e Contactor coil burnt f Indoor klixon open a Check differential fuses b Verify the safety chain of the electr...

Page 15: ......

Page 16: ...Order No 10055 03 2015 Supersedes order No New Manufactured for CARRIER in Spain The manufacturer reserves the right to change the specification without prior notice Printed in the European Union...

Reviews: