Contents

Owners Information Manual
- A170030
- Fig. 1 Unit PDD4
Safety Considerations
- NOTE: Installer: This manual should be left with the equipment user.
  - 1. Do not turn off the electrical power to unit without first turning off the gas supply.
  - 2. Before attempting to start the gas heating section, familiarize yourself with all the procedures that must be followed.
Unit Introduction
- Starting or Shutting Off Unit
- NOTE: Your combination heating/cooling unit is equipped with an automatic direct spark ignition and power combustion blower.
  - 1. Set the temperature selector on room thermostat to the lowest temperature setting and set system switch to Emergency Heat.
  - 2. Close the external manual gas shutoff valve.
  - 3. Turn off the electrical supply to the unit.
  - 4. Remove the control access panel with a 5/16-in. nut driver. (See Fig. 2.)
  - Fig. 2 Unit Access Panels
    - 5. Move the selector switch on the internal gas valve to the OFF position and wait 5 minutes.
    - 6. Move the selector switch on the internal gas valve to the ON position.
    - 7. Replace the control access panel.
    - 8. Turn on the electrical supply to unit.
    - 9. Open the external manual gas shutoff valve.
    - 10. Set the temperature selector on room thermostat slightly above room temperature to start unit. The induced-draft combustion air fan will start. Main gas valve will open and main burners should ignite within 5 seconds. If the burner does not light...
    - 11. Set the temperature selector on room thermostat to desired setting.
      - 1. If the main burners fail to light, or the blower fails to start, shut down gas heating section and call your dealer for service.
      - 2. Never attempt to manually light the main burners on unit with a match, lighter, or any other flame. If the electric sparking device fails to light the main burners, refer to the following shutdown procedures, then call your dealer as soon as possible
  - Fig. 3 Gas Heating/Electric Cooling Unit with Access Panel Removed
  - To shut off unit gas heat:
- NOTE: If the unit is being shut down because of a malfunction, call your dealer as soon as possible.
  - 1. Set the temperature selector on room thermostat to lowest temperature setting and set system SWITCH to OFF.
  - 2. Close the external manual shutoff valve.
  - 3. Turn off the electrical power supply to the unit.
  - 4. Remove the control access panel. (See Fig. 2.)
  - 5. Move the selector switch on the internal gas valve to the OFF position.
  - 6. Replace the control access panel.
  - A07662
  - Fig. 4 To Start Unit Gas Heat
    - A07663
  - Fig. 5 To Shut Off Unit Gas Heat
    - A09194
  - Fig. 6 To Start Unit Electric Cooling
    - A07797
  - Fig. 7 To Shut Off Unit Electric Cooling
    - To start unit electric cooling:
      - 1. Set the temperature selector on room thermostat to highest temperature setting and set system SWITCH to OFF.
      - 2. Close the external manual shutoff valve, if not already closed.
      - 3. Turn ON the electrical power supply to the unit.
      - 4. Set system switch to COOL.
      - 5. Set the temperature selector on room thermostat slightly below the room temperature to start unit.
    - To shut off unit electric cooling:
      - 1. Set the temperature selector on room thermostat to highest temperature setting and set system SWITCH to OFF.
      - 2. Close the external manual shutoff valve, if not already closed.
      - 3. Turn off the electrical power supply to the unit.
- NOTE: Heat Pump heating mode procedure is similar to electric cooling mode except thermostat mode is HEAT and thermostat must operate on first stage heating above the balance point that has been determined by the Dealer.
Operating Your Unit
- 1. During heat pump heating, increasing the thermostat setting more than 2F (1.1C) may cause the supplemental gas heat to be turned on for a short period of time to satisfy the thermostat. Needless use of the supplementary heat reduces potential ...
- 2. Ice or frost tends to form on the coil during winter heating operation. Your heat pump 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. Do not be alarmed!
- Cooling Mode
- Heat Pump Heating Mode
- Gas Heat Mode
- Defrost Mode
- Emergency Heat Mode
Maintenance and Service
- Routine Maintenance
- Maintenance and Care for the Equipment Owner
  - 1. Turn off gas supply first, then all electrical power to your unit and install lock--out tag 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 Replacement Filter Sizes
      - 1. Remove the filter access panel 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.
      - 3. Reinstall filter access panel ensuring opening is air and watertight.
- Replacing or inspecting filters in units with economizers
  - Small Chassis (See Fig. 8)
    - 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.
    - 3. Reinstall duct cover ensuring opening is air and watertight.
  - Large Chassis (See Fig. 9)
    - 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.
    - Fig. 8 Small Chassis Filter Access
    - Fig. 9 Large Chassis Filter Access
  - Fans and Fan Motors
  - Indoor and Outdoor Coils
  - Condensate Drain
  - Compressor
  - Condenser (Outdoor) Fan
- Electrical Controls and Wiring
- Refrigerant Circuit
- Unit Panels
- Combustion Area and Vent System
  - Regular Dealer Maintenance (Also refer to (Table 2))
    - 1. Inspection of all flue product passages-including the burners, heat exchanger, and flue collector box, Mare sure the burner flames are blue in color and in proper adjustment. Refer to Fig. 10 for burner flame.
    - 2. Inspection of all combustion-and ventilation-air passages and openings.
    - 3. Close inspection of all gas pipes leading to and inside of your unit.
    - 4. Inspection and, if required, cleaning of the outdoor and indoor coils.
    - 5. Inspection and, if required, cleaning of the indoor coil condensate drain pan.
    - 6. Inspection and cleaning of blower wheel housing and motor.
    - 7. Inspection of all supply-air and return-air ducts for leaks, obstructions, and insulation integrity. Any problems found should be resolved at this time.
    - 8. Inspection of the unit base to ensure that no cracks, gaps, etc., exist which may cause a hazardous condition.
    - 9. Inspection of the unit casing for signs of deterioration.
    - 10. Inspection of all electrical wiring and components to assure proper connection.
    - 11. Inspection for leaks in the refrigerant circuit. Pressure and temperature check to determine appropriate refrigerant charge.
    - 12. 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
    - Fig. 10 Monoport Burner
    - Table 2 Maintenance Checklist

Tempstar PDD4 V13.4 Owner's Manual

Tempstar PDD4 V13.4 Dual Fuel System manual cover

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Tempstar PDD4 V13.4 Dual Fuel System Specification

The Tempstar PDD4 V13.4 Dual Fuel System is a sophisticated climate control solution designed to optimize energy efficiency and comfort in residential settings. This system seamlessly integrates a heat pump with a gas furnace, allowing for flexible operation based on the ambient temperature and energy costs. The heat pump operates efficiently in moderate conditions, while the gas furnace provides reliable heating during colder temperatures, ensuring year-round comfort and cost-effective performance.

The PDD4 V13.4 is equipped with advanced inverter technology, which modulates the compressor speed to maintain consistent indoor temperatures with minimal energy consumption. This system features a high Seasonal Energy Efficiency Ratio (SEER) and Heating Seasonal Performance Factor (HSPF), reflecting its superior efficiency ratings. The unit is designed with a variable-speed blower motor, enhancing air circulation and reducing energy usage.

Additionally, the Tempstar PDD4 V13.4 incorporates a high-efficiency gas furnace with an Annual Fuel Utilization Efficiency (AFUE) rating that ensures maximum heat output with minimal fuel consumption. The dual fuel capability is managed by an intelligent control system that automatically switches between electric and gas heating based on real-time assessments of outdoor conditions and energy prices.

Built with durable materials and a corrosion-resistant finish, the system is engineered for longevity and resilience against harsh weather conditions. It features advanced diagnostics and connectivity options for easy monitoring and maintenance. The Tempstar PDD4 V13.4 Dual Fuel System represents a commitment to sustainable technology, offering a comprehensive heating and cooling solution that balances environmental responsibility with optimal indoor comfort.

Tempstar PDD4 V13.4 Dual Fuel System F.A.Q.

How do I switch between gas and electric modes on the Tempstar PDD4 V13.4 Dual Fuel System?

To switch between gas and electric modes, you need to access the system's control panel. Navigate to the settings menu and select the 'Fuel Mode' option. From there, you can toggle between gas and electric modes depending on your energy preference and availability.

What should I do if the Tempstar PDD4 V13.4 is not heating adequately?

First, check if the thermostat is set to the desired temperature. Ensure that the filters are clean and the vents are not obstructed. If the issue persists, inspect the fuel supply lines for blockages and verify that the blower fan is functioning. If necessary, contact a certified technician for further diagnosis.

How often should the air filter be replaced in the Tempstar PDD4 V13.4 system?

It is recommended to inspect the air filter every month and replace it every 3 months or as needed, depending on usage and environmental conditions. Regular replacement ensures optimal airflow and system efficiency.

What maintenance tasks should be performed seasonally on the Tempstar PDD4 V13.4?

Seasonal maintenance includes checking and cleaning the air filter, inspecting the thermostat for accuracy, ensuring that electrical connections are secure, and cleaning the outdoor unit to remove debris. Additionally, schedule a professional inspection for a comprehensive system check.

How can I reset the Tempstar PDD4 V13.4 system after a power outage?

To reset the system after a power outage, turn off the power to the unit at the circuit breaker. Wait for about 5 minutes before turning the power back on. This allows the system's internal components to reset.

What should I do if there is a gas odor near the Tempstar PDD4 V13.4 unit?

If you detect a gas odor, evacuate the area immediately and contact your gas provider. Do not attempt to operate any electrical switches or appliances. A professional should inspect and address any gas leaks to ensure safety.

Why is my Tempstar PDD4 V13.4 system making unusual noises?

Unusual noises may indicate loose components, debris in the blower fan, or issues with the motor bearings. Inspect the system for visible issues and tighten any loose parts. If the noise continues, contact a technician for a thorough inspection.

Can I install a smart thermostat with the Tempstar PDD4 V13.4 system?

Yes, you can install a smart thermostat compatible with dual fuel systems. Ensure that the chosen thermostat supports dual fuel configurations and follow the manufacturer's installation instructions for optimal integration.

What are the benefits of using the dual fuel capability of the Tempstar PDD4 V13.4 system?

The dual fuel capability allows for efficient energy use by switching between gas and electric power, depending on demand and cost efficiency. This flexibility can lead to energy savings and improved comfort levels throughout the year.

How do I check the refrigerant levels in the Tempstar PDD4 V13.4 system?

Checking refrigerant levels should be done by a certified technician, as it requires specialized tools and knowledge. Regular maintenance checks will ensure that refrigerant levels are optimal for efficient operation.