Unit Maintenance

!WARNING:

To avoid risk of electrical shock, personal injury, or death, disconnect all electrical power to the unit before performing any maintenance or service. The unit may have more than one electrical supply.

Refrigerant Charging — The Q4 packaged heat pumps are fully charged at the factory . The system refrigerant charge can be checked and adjusted through the service ports provided in the front panel. Use only gauge lines which have a “Schrader” depression device present to actuate the valve. Refrigerant charging must be done by qualified personnel familiar with safe and environmentally responsible refrigerant handling procedures.

!WARNING:

The Q4 Single Packaged Heat Pumps are shipped fully charged and ready for installation. When a system is installed according to these instructions, no refrigerant charging is required. If repairs make it necessary for evacuation and charging, it should only be done by qualified, trained personnel thoroughly familiar with this equipment. Some local codes require licensed installation/service personnel to service this type of equipment. Under no circumstances should the owner attempt to install and/or service this equipment. Failure to comply with this warning could result in property damage, personal injury, or death.

!CAUTION:

Use care when removing parts from this unit. Personal injury can result from sharp metal edges present in all equipment of sheet metal construction.

Routine Maintenance — Proper maintenance is important to achieve optimum performance from the heat pump. The ability to properly perform maintenance on this equipment requires certain mechanical skills and tools. If you do not possess these skills, contact your dealer for maintenance. Consult your local dealer about the availability of maintenance contracts. At a minimum, routine maintenance should include the following:

1.Inspect and clean or replace air filters at the beginning of each heating and cooling season, or more frequently if required.

2.Inspect the condensate drain and outdoor coil at the beginning of each cooling season. Remove any debris. Clean the outdoor coil and louvers as necessary using a mild detergent and water. Rinse thoroughly with water.

3.Inspect the electrical connections for tightness at the beginning of each heating and cooling season. Service as necessary.

!CAUTION:

The unit should never be operated without a filter in the return air system. Replace disposable filters with the same type and size.