Carrier 50TZ/YZ 072 User Manual

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.

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

Summary

Safety Considerations

Rigging Procedures

Procedures for safely lifting and moving units, avoiding damage.

Installation

Unit Siting Requirements

Electrical Connections

Refrigerant Line Connections

Refrigerant Line Sizing

Factors for choosing refrigerant line diameters based on unit and distance.

Suction Line Installation

Refrigerant Charge

Refrigerant Charge Table

Sizing

Liquid Line Sizing

Pre-Start-Up Checks

Essential checks for electrical, ductwork, and refrigerant systems before unit operation.

Start-Up

Start-Up Initial Checks

Verifying operating pressures and component consumptions during initial start-up.

High Pressure Shutdown Test

Low Pressure Shutdown Test

General Maintenance