Contents

Owners Information Manual
- A170030
- Fig. 1 Unit PHD4 and WPH4
  - Safety Considerations
  - Operating Your Unit
    - 1. During heating, increasing the desired temperature setting more than 2F (1.1C) may cause the supplemental heaters to be turned on for a short period of time to satisfy the demand. Needless use of the supplementary heat reduces potential energy...
    - 2. Ice or frost tends to form on the coil during winter heating operation. Your unit is designed to automatically melt the ice. When in this defrost cycle, it is normal for steam or fog to rise from the outdoor unit, and for water to drain from the o...
    - To start the unit:
      - 1. Turn on the electrical power supply to unit.
      - 2. Set MODE control to desired mode and select temperature.
    - To shut off unit:
      - 1. Set system MODE control to OFF.
      - 2. Turn off the electrical power supply to unit.
    - Cooling Mode
    - Heating Mode
    - Supplemental Heat
    - Defrost Mode
    - Emergency Heating Mode
  - Maintenance and Service
    - Routine Maintenance
    - Maintenance and Care for the Equipment Owner
      - 1. TURN OFF ELECTRICAL POWER TO YOUR UNIT BEFORE SERVICING OR PERFORMING MAINTENANCE AND INSTALL A LOCK-OUT TAG. THERE MAY BE MORE THAN ONE DISCONNECT SWITCH.
      - 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 Replacement Filter Sizes
        
        1. Remove the filter access panel (See Fig. 3) using a 5/16-in. nut driver.
        
        2. Remove the filter(s) by pulling it out of the unit. If the filter(s) is dirty, clean or replace with a new one.
      - Fig. 2 Accessory Filter Rack Access Panel
      - Fig. 3 Small Chassis Filter Access
    - Replacing or inspecting filters in units with economizers
      - 1. Remove return air duct cover at rear of unit using a 5/16-in. nut driver.
      - 2. Remove the filter(s) by pulling it out and through the unit duct opening. If filter is dirty, replace both filters with new ones.
      - Fig. 4 Large Chassis Filter Access
        
        3. Reinstall duct cover ensuring opening is air and water tight.
        
        1. Remove filter access door using a 5/16-in. nut driver.
        
        2. Remove the filter(s) by pulling it out and through the unit filter access door. If filter is dirty, replace both filters with new ones.
        
        3. Reinstall filter access door ensuring opening is air and watertight.
    - Fans and Fan Motor
    - 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 outdoor and indoor coils.
      - 2. Inspection and, if required, cleaning of the indoor coil drain pan.
      - 3. Inspection and cleaning of blower wheel housing and motor.
      - 4. Inspection of all supply 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 assure proper connection.
      - 8. Inspection for leaks in the refrigerant circuit. Pressure and temperature 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

Tempstar PHD4 Owner's Manual

Pages 6

Year 0

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Tempstar PHD4 Heat Pump Specification

The Tempstar PHD4 Heat Pump is an efficient and reliable heating and cooling solution designed to deliver optimal indoor comfort. This model features a high-efficiency scroll compressor that enhances performance and ensures quiet operation, making it suitable for residential use. It operates with a SEER (Seasonal Energy Efficiency Ratio) rating of up to 17 and an HSPF (Heating Seasonal Performance Factor) rating up to 9.5, which provides energy efficiency that can lead to reduced utility bills. The unit supports a two-stage operation, allowing for better temperature control and humidity management, which contributes to increased comfort levels in varying weather conditions.

The PHD4 comes equipped with a durable powder-coated galvanized steel cabinet designed to withstand harsh weather, ensuring longevity and reliability. It includes an advanced electronic control system that provides precise temperature regulation and diagnostics to facilitate easier maintenance. The heat pump is compatible with various thermostats, including smart thermostats, for user convenience and enhanced energy management.

Additionally, it utilizes environmentally friendly R-410A refrigerant, aligning with current environmental standards and reducing its ecological footprint. The model also offers sound-reducing features, such as an aerodynamic fan blade and a high-density foam compressor sound blanket, to minimize noise during operation. The Tempstar PHD4 Heat Pump is available in multiple sizes to accommodate different home requirements and is backed by a competitive warranty that covers parts and compressor, ensuring peace of mind for homeowners.

Tempstar PHD4 Heat Pump F.A.Q.

How do I reset the Tempstar PHD4 Heat Pump after a power outage?

To reset your Tempstar PHD4 Heat Pump after a power outage, locate the circuit breaker for the heat pump in your electrical panel. Turn it off for about 5 minutes, then switch it back on. This should reset the system.

What is the recommended maintenance schedule for the Tempstar PHD4 Heat Pump?

It is recommended to have a professional inspect and service your Tempstar PHD4 Heat Pump at least once a year. Regular maintenance includes checking the refrigerant levels, inspecting the electrical components, and cleaning or replacing the air filters every 1-3 months.

Why is my Tempstar PHD4 Heat Pump not heating properly?

If your Tempstar PHD4 Heat Pump is not heating properly, check if the thermostat is set correctly. Ensure that the air filters are clean and that there are no obstructions in the airflow. If the problem persists, it might be a refrigerant issue or compressor malfunction, which requires professional inspection.

How can I improve the efficiency of my Tempstar PHD4 Heat Pump?

To improve the efficiency of your Tempstar PHD4 Heat Pump, make sure to regularly clean or replace air filters, seal any duct leaks, and ensure proper insulation in your home. Additionally, consider using a programmable thermostat to optimize usage.

What should I do if my Tempstar PHD4 Heat Pump is making unusual noises?

Unusual noises from your Tempstar PHD4 Heat Pump could indicate loose components, debris in the fan, or issues with the compressor. Turn off the unit and inspect for any visible issues. If the noise persists, contact a professional technician for a thorough inspection.

How often should I replace the air filters in my Tempstar PHD4 Heat Pump?

Air filters in your Tempstar PHD4 Heat Pump should be checked monthly and replaced every 1-3 months, depending on usage and environmental factors such as pet hair or dust levels.

Can I install a Tempstar PHD4 Heat Pump myself, or should I hire a professional?

It is highly recommended to hire a professional for the installation of your Tempstar PHD4 Heat Pump. Proper installation is crucial for efficiency, safety, and warranty compliance.

What type of refrigerant is used in the Tempstar PHD4 Heat Pump?

The Tempstar PHD4 Heat Pump typically uses R-410A refrigerant, which is an environmentally friendly option compared to older refrigerants. Always verify with the user manual or manufacturer for the specific model.

How do I switch my Tempstar PHD4 Heat Pump between heating and cooling modes?

To switch between heating and cooling modes on your Tempstar PHD4 Heat Pump, adjust the settings on your thermostat. If using a programmable or smart thermostat, follow the device-specific instructions for mode switching.

What should I do if my Tempstar PHD4 Heat Pump is not turning on?

If your Tempstar PHD4 Heat Pump is not turning on, check the thermostat settings, ensure the unit is receiving power, and inspect the circuit breaker. If it still does not turn on, there may be an issue with the wiring or internal components, which requires professional assistance.