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50TZ/YZ 072
Carrier 50TZ/YZ 072 User Manual
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1
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.
2
Table of Contents
Table of Contents
2
Start-Up Check List
3
Physical Data
3
Electrical Data
3
Dimensions
6
Service Area
27
Coordinates for the Centre of Gravity
28
Weight Distribution
29
Air Discharge
30
Fan Performances
31
Safety Considerations
33
Installation
33
Siting the Unit
33
Rigging
33
Ductwork
33
Condensate and Rainwater Drainage
34
Electrical Connections
34
Electrical Connection between Units
34
Thermostat Connection
34
Refrigerant Line Connections
35
Refrigerant Line Selection
35
Checks before Start-Up
36
Refrigerant Charge
36
Gas Tightness Testing and Dehydration
36
Start-Up
37
Refrigerant System Description
37
Compressor Replacement
37
Description of Unit Safety Devices
37
Operating Limits
38
Control Sequence
38
Options/Accessories
38
General Maintenance
38
Service
38
Lubrication
38
Servicing Recommendations
39
Transformation to Split System
39
Final Recommendations
39
Troubleshooting Chart
40
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Carrier 50TZ/YZ 072 Specifications
General
HSPF
Up to 9.5
Cooling Capacity
72000 BTU/h
Voltage
208/230 V
Operating Voltage
208/230 V
Phase
3
Heating Capacity
72000 BTU/h
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