Contents

Home Owners Information
- A Note about Safety
- Thermostat
  - Heating Mode
  - Cooling Mode
  - Temperature Control
  - Fan Control
- Important Heat Pump Facts
- Operation under Extreme Conditions
  - Do Not Operate Above 66F (19C) in Heating Mode
  - Do Not Block Floor, Wall or Ceiling Vents
- What To Do If Your System Does Not Work
  - 1. Check thermostat settings. If you desire heat, make sure to select a temperature above the actual room temperature, and set the system selector switch to HEAT. If you desire cooling, make sure to select a temperature below the actual room temperat...
  - 2. Inspect your return air filter. Replace a dirty filter or clean a reusable type filter.
  - 3. Check circuit breakers and/or fuses. Reset breakers or replace fuses as necessary.
  - 4. Inspect the coils and fins on the outdoor unit. Clean away any obstructions (grass clippings, leaves, dirt, dust, or lint). Check that branches, twigs, or other debris are not obstructing the fan blade.
  - If your system still does not operate, contact your servicing dealer.
- Regular Maintenance Requirements
  - Air Filter
  - Condensate Drain
  - Outdoor Unit Coils
  - Painted Surfaces
  - Sea Coast Coil Maintenance (when applicable)
- Table 1 Maintenance Checklist

Tempstar N4H4 Owner's Manual

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Tempstar N4H4 Heat Pump Specification

The Tempstar N4H4 Heat Pump is designed to provide efficient and reliable heating and cooling solutions for residential applications. This model is part of Tempstar's Performance Series, known for its balance of performance, durability, and energy efficiency. The N4H4 features a single-stage compressor that optimizes energy use while ensuring consistent indoor comfort. It offers a SEER (Seasonal Energy Efficiency Ratio) rating of up to 14, making it a suitable choice for homeowners looking to maintain moderate energy costs.

The heat pump is equipped with a durable cabinet made of galvanized steel with a baked-on powder coat finish, offering protection against weather and corrosion. The N4H4 utilizes an environmentally friendly R-410A refrigerant, which helps reduce ozone depletion potential. Its quiet operation is achieved through a sound-reducing compressor blanket, ensuring minimal noise disruption.

The N4H4 is compatible with a range of thermostats, including Wi-Fi-enabled models, allowing for modern control options. The unit is designed for easy installation and maintenance, featuring a control panel with convenient access to electrical and refrigerant connections. It also includes a filter drier, which helps in the removal of moisture and contaminants from the refrigerant system, enhancing longevity and performance.

Safety features include high and low-pressure switches that protect the system from abnormal conditions, ensuring dependable operation. The Tempstar N4H4 Heat Pump is available in various capacities to suit different home sizes and heating/cooling needs, making it a versatile option for many residential settings. It is backed by a manufacturer's warranty, providing peace of mind with coverage for parts and performance.

Tempstar N4H4 Heat Pump F.A.Q.

How do I perform a basic maintenance check on my Tempstar N4H4 Heat Pump?

To perform a basic maintenance check on your Tempstar N4H4 Heat Pump, ensure the unit is turned off. Clean or replace the air filters, inspect the outdoor coil for debris, and check the condensate drain for obstructions. Additionally, ensure that the thermostat is functioning correctly and schedule an annual professional maintenance check.

What should I do if my Tempstar N4H4 Heat Pump is not heating properly?

If your Tempstar N4H4 Heat Pump is not heating properly, check the thermostat settings to ensure it is set to 'heat' mode. Verify that the air filter is clean and the outdoor unit is free of debris. If the problem persists, inspect the circuit breakers and contact a professional technician for assistance.

How can I improve the energy efficiency of my Tempstar N4H4 Heat Pump?

To improve the energy efficiency of your Tempstar N4H4 Heat Pump, regularly clean or replace air filters, seal any duct leaks, and ensure proper insulation. Additionally, maintain a consistent thermostat setting and schedule regular professional maintenance checks.

Why is my Tempstar N4H4 Heat Pump making unusual noises?

Unusual noises in your Tempstar N4H4 Heat Pump could be due to loose components, debris in the fan blades, or a faulty motor. Turn off the unit and inspect for visible issues. If the noise persists, contact a professional technician to diagnose and resolve the problem.

What are the ideal thermostat settings for my Tempstar N4H4 Heat Pump during winter?

During winter, set your Tempstar N4H4 Heat Pump thermostat to around 68°F while you're home and lower it while you're away or asleep. Use a programmable thermostat to automatically adjust the settings for optimal energy savings and comfort.

How often should I replace the air filters in my Tempstar N4H4 Heat Pump?

The air filters in your Tempstar N4H4 Heat Pump should be checked monthly and replaced every 1-3 months, depending on usage and air quality. Regular replacement ensures efficient operation and maintains good indoor air quality.

What does it mean if my Tempstar N4H4 Heat Pump is short cycling?

Short cycling in your Tempstar N4H4 Heat Pump occurs when the system turns on and off quickly. This can be caused by incorrect thermostat settings, clogged air filters, or refrigerant issues. Check and address these areas or consult a technician for further diagnosis.

How do I reset my Tempstar N4H4 Heat Pump after a power outage?

To reset your Tempstar N4H4 Heat Pump after a power outage, turn off the thermostat and the circuit breaker for the heat pump. Wait for about 5 minutes before turning the circuit breaker back on, followed by the thermostat. This should reset the system.

What should I do if my Tempstar N4H4 Heat Pump is leaking water?

If your Tempstar N4H4 Heat Pump is leaking water, check the condensate drain for blockages and ensure that the drain pan is not cracked. Clean the drain line with a mixture of bleach and water. If the issue continues, contact a professional technician.

How do I troubleshoot a Tempstar N4H4 Heat Pump that won't turn on?

If your Tempstar N4H4 Heat Pump won't turn on, check the thermostat settings and ensure the unit is receiving power by checking the circuit breaker and fuses. Inspect the air filter and outdoor unit for obstructions. If the problem persists, contact a certified technician.