Contents

Owners Information Manual
- A05194
- Fig. 1 Unit 50ZPC, 50ZPD
  - Safety Considerations
  - To Start Unit:
    - 1. Turn on the electrical power supply to the unit.
    - 2. Select temperature and set system switch to desired mode.
  - To Shut Off Unit:
    - 1. Set the temperature switch to OFF.
    - 2. Turn off the electrical power supply to unit.
    - Cooling Mode
    - Supplemental Heat
  - Routine Maintenance
    - To assure proper functioning of the unit, flow of condenser air must not be obstructed from reaching the unit. Clearance from the top of the unit is 48 in. (1219 mm). Clearance of at least 36 in. (914 mm) is required on sides except the power entry s...
    - Maintenance and Care for the Equipment Owner
      - 1. TURN OFF ELECTRICAL POWER TO YOUR UNIT BEFORE SERVICING OR PERFORMING MAINTENANCE.
      - 2. When removing access panels or performing maintenance functions inside your unit, be aware of sharp sheet metal parts and screws. Although special care is taken to reduce sharp edges to a minimum, be extremely careful when handling parts or reachi...
    - Air Filters
      - Table 1 Indoor Air Filter Data
    - Fans and Fan Motors
    - Indoor and Outdoor Coils
    - Condensate Drain
    - Compressor
    - Condenser Fan
    - Electrical Controls and Wiring
    - Refrigerant Circuit
    - Unit Panels
  - Regular Dealer Maintenance (Also refer to Table 2)
    - 1. Inspection and, if required, cleaning of the indoor coil condensate drain.
    - 2. Inspection and, if required, cleaning of the evaporator drain pan.
    - 3. Inspection and cleaning of blower wheel housing and motor.
    - 4. Inspection of all supply-air and return-air ducts for leaks, obstructions, and insulation integrity. Any problems found should be resolved at this time.
    - 5. Inspection of the unit base to ensure that no cracks, gaps, etc., exist which may cause a hazardous condition.
    - 6. Inspection of the unit casing for signs of deterioration.
    - 7. Inspection of all electrical wiring and components to ensure proper connection.
    - 8. Inspection for leaks in the refrigerant circuit. Pressure-check to determine appropriate refrigerant charge.
    - 9. Operational check of the unit to determine working conditions. Repair or adjustment should be made at this time.
    - Warranty Certificate
    - Before you call for service...
    - In Case of Trouble
      - Table 2 Maintenance Checklist

Carrier 50ZPC Owner's Manual

Pages 4

Year 2020

Language(s)

of 4

Carrier 50ZPC Specification

The Carrier 50ZPC is a high-efficiency rooftop packaged heat pump designed for commercial applications, providing reliable heating and cooling solutions. It features a compact, all-in-one design that simplifies installation and maintenance, making it suitable for a wide range of building types. The unit is equipped with advanced scroll compressors, which offer enhanced reliability and improved energy efficiency. These compressors reduce energy consumption, ensuring the 50ZPC meets stringent energy standards while delivering optimal performance.

The system incorporates a high-efficiency, environmentally friendly R-410A refrigerant that enhances its cooling capacity and ensures compliance with modern environmental regulations. The unit's design includes durable, corrosion-resistant materials that extend its lifespan and minimize maintenance requirements. Additionally, it features a state-of-the-art control system that provides precise temperature management and easy integration with building management systems. This allows for improved operational efficiency and user-friendly interface options.

The Carrier 50ZPC offers a range of capacities to accommodate various space requirements, making it adaptable to different commercial environments. Its quiet operation and space-saving footprint are ideal for urban settings where noise and space constraints are critical considerations. The heat pump's design includes easy access panels and straightforward component layout, facilitating convenient servicing and reducing downtime during maintenance procedures. Overall, the Carrier 50ZPC represents a robust solution for commercial heating and cooling needs, combining energy efficiency with reliable performance to support sustainable building operations.

Carrier 50ZPC F.A.Q.

What are the basic steps to operate the Carrier 50ZPC unit?

To operate the Carrier 50ZPC, ensure the power supply is connected, set the desired temperature on the thermostat, and switch the unit on using the main control panel.

How can I troubleshoot the Carrier 50ZPC if it doesn't start?

First, check the power supply and circuit breakers. Ensure the thermostat is set to the correct mode. If the unit still doesn't start, inspect for any error codes and refer to the manual for specific troubleshooting steps.

What is the recommended maintenance schedule for the Carrier 50ZPC?

The recommended maintenance schedule includes monthly filter checks, quarterly inspection of electrical connections, and annual professional service for a comprehensive system check.

How do I clean the air filters on the Carrier 50ZPC?

Turn off the unit, open the access panel, remove the filters, and clean them with mild detergent and water. Allow the filters to dry completely before reinstalling them.

What should I do if the Carrier 50ZPC is leaking water?

Check for blockages in the condensate drain line and ensure it is clear. Inspect the drain pan for cracks. If the problem persists, contact a professional technician.

How can I improve the efficiency of my Carrier 50ZPC unit?

Ensure regular maintenance is performed, such as cleaning filters and coils. Seal any leaks in ductwork and consider upgrading insulation to improve efficiency.

What does it mean if my Carrier 50ZPC displays an error code?

An error code indicates a specific issue within the unit. Refer to the user manual to identify the code and follow the recommended troubleshooting steps.

Can I install the Carrier 50ZPC by myself?

It is recommended to have a professional HVAC technician install the unit to ensure it is set up correctly and safely.

How do I reset the Carrier 50ZPC after a power outage?

To reset the unit, turn off the thermostat, switch off power to the unit, wait for a few minutes, then restore power and turn the thermostat back on.

What are common causes of unusual noises from the Carrier 50ZPC?

Unusual noises can be caused by loose components, debris in the fan, or issues with the blower motor. Inspect these areas and tighten or clean as necessary.