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50TZ/YZ
38FZ/BZ-40TZ/BZ

Single-Package Cooling Units
and Heat Pumps

Installation, operation and maintenance instructions

Carrier is participating in 
the Eurovent Certification
Programme. Products are 
as listed in the Eurovent
Directory of Certified 
Products.

Summary of Contents for 38FZ/BZ 024

Page 1: ...gle Package Cooling Units and Heat Pumps Installation operation and maintenance instructions Carrier is participating in the Eurovent Certification Programme Products are as listed in the Eurovent Dir...

Page 2: ...rical connection between units 34 Thermostat connection 34 REFRIGERANT LINE CONNECTIONS 35 Refrigerant line selection 35 Checks before start up 36 Page REFRIGERANT CHARGE 36 Gas tightness testing and...

Page 3: ...C Entering air temp o C Leaving air temp o C Leaving air temp o C Pressure drop air kPa Pressure drop air kPa Discharge air pressure Pa Discharge air pressure Pa Fan motor input Ph 1 Volts Fan motor i...

Page 4: ...s not include the connection lines Based on an outdoor air dry bulb temperature of 35 C and a dewpoint suction temperature of 7 C Table 2 Physical data 50YZ 024 036 042 048 060 072 084 Nominal cooling...

Page 5: ...size 024 230 V which is single phase The fan power supply is single phase except for sizes 072 and 084 which are three phase Based on an outdoor air dry bulb temperature of 35 C and a dewpoint suction...

Page 6: ...e Evaporator access panel Compressor access panel Control box access panel Evaporator air inlet Evaporator air outlet Condenser air inlet Condenser air outlet Drain 3 4 MPT Unit supports Cable entry M...

Page 7: ...e Evaporator access panel Compressor access panel Control box access panel Evaporator air inlet Evaporator air outlet Condenser air inlet Condenser air outlet Drain 3 4 MPT Unit supports Cable entry M...

Page 8: ...e Evaporator access panel Compressor access panel Control box access panel Evaporator air inlet Evaporator air outlet Condenser air inlet Condenser air outlet Drain 3 4 MPT Unit supports Cable entry M...

Page 9: ...8 Evaporator access panel Compressor access panel Control box access panel Evaporator air inlet Evaporator air outlet Condenser air inlet Condenser air outlet Drain 3 4 MPT Unit supports Cable entry M...

Page 10: ...ce Evaporator access panel Compressor access panel Control box access panel Evaporator air inlet Evaporator air outlet Condenser air inlet Condenser air outlet Drain 3 4 MPT Unit supports Cable entry...

Page 11: ...ce Evaporator access panel Compressor access panel Control box access panel Evaporator air inlet Evaporator air outlet Condenser air inlet Condenser air outlet Drain 3 4 MPT Unit supports Cable entry...

Page 12: ...ce Evaporator access panel Compressor access panel Control box access panel Evaporator air inlet Evaporator air outlet Condenser air inlet Condenser air outlet Drain 3 4 MPT Unit supports Cable entry...

Page 13: ...e Condenser air outlet Drain 3 4 MPT Unit supports Cable entry Main disconnect switch Compressor access panel Control box access panel Suction line 5 8 Liquid line 3 8 Condenser air inlet Note Standar...

Page 14: ...e Compressor access panel Control box access panel Suction line 5 8 Liquid line 3 8 Condenser air inlet Condenser air outlet Drain 3 4 MPT Unit supports Cable entry Main disconnect switch Note Standar...

Page 15: ...uction line 5 8 Liquid line 3 8 Condenser air inlet When designing an installation always use up to date drawings available from your local Carrier office Fig 10 Dimensions mm 38FZ BZ 042 Note Standar...

Page 16: ...Condenser air outlet Drain 3 4 MPT Unit supports Cable entry Main disconnect switch When designing an installation always use up to date drawings available from your local Carrier office Note Standar...

Page 17: ...Condenser air outlet Drain 3 4 MPT Unit supports Cable entry Main disconnect switch When designing an installation always use up to date drawings available from your local Carrier office Note Standar...

Page 18: ...Condenser air outlet Drain 3 4 MPT Unit supports Cable entry Main disconnect switch When designing an installation always use up to date drawings available from your local Carrier office Note Standar...

Page 19: ...Condenser air outlet Drain 3 4 MPT Unit supports Cable entry Main disconnect switch When designing an installation always use up to date drawings available from your local Carrier office Note Standar...

Page 20: ...ondenser air outlet Drain 3 4 MPT Unit supports Cable entry When designing an installation always use up to date drawings available from your local Carrier office Note Standard air supply and return V...

Page 21: ...panel Suction line 5 8 Liquid line 3 8 Condenser air inlet When designing an installation always use up to date drawings available from your local Carrier office Note Standard air supply and return P...

Page 22: ...panel Suction line 5 8 Liquid line 3 8 Condenser air inlet When designing an installation always use up to date drawings available from your local Carrier office Note Standard air supply and return P...

Page 23: ...panel Suction line 5 8 Liquid line 3 8 Condenser air inlet When designing an installation always use up to date drawings available from your local Carrier office Note Standard air supply and return V...

Page 24: ...panel Suction line 5 8 Liquid line 3 8 Condenser air inlet When designing an installation always use up to date drawings available from your local Carrier office Note Standard air supply and return V...

Page 25: ...panel Suction line 5 8 Liquid line 3 8 Condenser air inlet When designing an installation always use up to date drawings available from your local Carrier office Note Standard air supply and return V...

Page 26: ...ss panel Suction line 5 8 Liquid line 3 8 Condenser air inlet When designing an installation always use up to date drawings available from your local Carrier office Note Standard air supply and return...

Page 27: ...es A 800 mm B 500 mm C 600 mm D 500 mm NOTE For size 50TZ YZ 060 D 600 mm Fig 23 Service area mm 38FZ BZ all sizes A 800 mm B 500 mm C 500 mm Fig 24 Service area mm 40TZ BZ all sizes A 600 mm B 500 mm...

Page 28: ...0 600 610 Measured from point 38FZ BZ all sizes Fig 27 Centre of gravity approx 40TZ BZ all sizes 40TZ BZ 024 036 042 048 060 072 084 XG mm 290 300 308 310 310 430 460 YG mm 223 238 240 232 235 275 27...

Page 29: ...36 Support 38FZ points 024 036 042 048 060 072 084 18 22 27 32 36 43 54 15 18 20 23 27 37 48 43 50 52 65 69 77 91 34 40 41 45 48 55 68 Control box Air Filter Fig 28 Weight distribution kg approx 50TZ...

Page 30: ...Remove supply air panel and access panel h Exchange the position of panels and See Figs 31 and 32 S Standard NOTE In the 50TZ YZ 060 and 40BZ 060 units the standard indoor air discharge is through th...

Page 31: ...t tica disponible Pa 1 2 2 1 50TZ YZ 036 outdoor fan 38BZ FZ 036 Available static pressure Pa Air flow l s Power input W 50TZ YZ042 ventilador exterior 38BZ FZ042 0 20 40 60 80 100 120 700 750 800 850...

Page 32: ...20 40 60 80 100 120 140 160 180 1300 1400 1500 1600 1700 1800 Caudal de aire l s 1150 1200 1250 1300 1350 1400 1450 1500 1550 1600 Consumo W Presi n est tica disponible Pa 50TZ YZ084 ventilador interi...

Page 33: ...rees with the specification on the unit nameplate Siting the unit Check the following points The location must be able to support the unit operating weight see Tables 1 and 2 Allow sufficient space fo...

Page 34: ...ctured in accordance with the wiring diagram accompanying the unit Follow the instructions supplied with the control for thermostat assembly and handling The general rules below should be taken into a...

Page 35: ...nt lines the following must be kept in mind Depending on the unit arrangement Fig 35 Refrigerant lines option A Suction line A siphon at the base of the vertical pipe run and inter mediate siphons eve...

Page 36: ...electrical power source agrees with the unit nameplate rating Make sure that compressors float freely on the mounting springs WARNING The compressors are mounted on vibration isolators Do not loosen o...

Page 37: ...Tables 3 and 4 Refrigerant system description The refrigerant circuit incorporates the following primary elements Refrigerant air heat exchanger made of high quality copper tubes and pretreated alumin...

Page 38: ...n maximum performance from the unit special attention should be paid to the following points Electrical connections The supply voltage should be within the limits permitted by the compressor Ensure th...

Page 39: ...door unit Similarly locate the welded joint of the liquid line sections Separate both lines suction and liquid lines by unsoldering them After completing this operation plug the ends of both lines to...

Page 40: ...ssor Replace compressor Unit starts and stops frequently Defective compressor contactor Replace contactor Defective compressor Replace compressor Refrigerant losses Check and add the necessary quantit...

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