Carrier PGD4 14 SEER Single and Three Phase Single Packaged Air Conditioner Owner’s Manual

Carrier PGD4 14 SEER Single and Three Phase Single Packaged Air

Conditioner

Safety Considerations

Improper installation, adjustment, alteration, service maintenance, or use can cause an explosion, fire, electrical shock, or other conditions which may cause death, personal injury, or property damage. Consult a qualified installer, service agency, or your distributor or branch for information or assistance. The qualified installer or agency must use factory-authorized kits or accessories when modifying this product. Refer to the individual instructions packaged with the kits or accessories when installing. Follow all safety codes. Wear safety glasses, protective clothing, and work gloves. Have a fire extinguisher available. Read these instructions thoroughly and follow all warnings or cautions included in the literature and attached to the unit. consult local building codes, the current editions of the National Fuel Gas Code (NFGC) NFPA 54/ANSI Z223.1, and theNational Electrical Code (NEC) NFPA 70.In Canada refer to the current editions of the National Standards of Canada CAN/CSA-B149.1 and .2 Natural Gas and Propane Installation codes, and Canadian Electrical Code CSA C22.1Recognize safety information. This is the safety alert symbol. When you see this symbol on the unit and in instructions or manuals, be alert tothe potential for personal injury. Understand these signal words: These words are used with the safety-alert symbol. DANGER identifies the most serious hazards whichwill result in severe personal injury or death. WARNING signifies hazards that could result in personal injury or death. CAUTION used to identify unsafe practices which may result in minor personal injury or product and property damage. NOTE is used to highlight suggestions that will result in enhanced installation, reliability, or operation. Most states is the USA and jurisdictions in Canada have laws that require the use of Carbon Monoxide (CO) alarms with fuel-burning products. Examples of fuel- burning products are furnaces, boilers, space heaters, generators, water heaters, stoves/ranges, clothes dryers, fireplaces, incinerators, automobiles, and other internal combustion engines. Even if there are no laws in your jurisdiction requiring a CO Alarm, it’s highly recommended that whenever any fuel-burning product is used in or around the home or business that the dwelling be equipped with a CO Alarm(s). The Consumer Product Safety Commission recommends the use of CO Alarm(s). The CO Alarm(s) must be installed, operated, and maintained according to the CO Alarm manufacturer’s instructions. For more information about Carbon Monoxide, local laws, or to purchase a CO Alarm only, please visit the following website https://www.kidde.com

Unit Introduction

This unit is a small packaged gas heat/electric cooling system that can utilize the comfort of gas heating packaged along with efficient electric air conditioning. This unit uses R-410A, the environmentally balanced refrigerant for cooling. Starting or Shutting Off Unit NOTE: Your combination heating/cooling unit is equipped with automatic direct spark ignition and power combustion blower.

To start unit gas heat:

• Refer to Fig. 2 for location of unit front access panel. Refer to Fig. 3 for the location of gas valve. Refer to Fig. 4 while proceeding with the following steps.
• Set the temperature selector on room thermostat to the lowest temperature setting and set system switch to HEAT.
•  Close the external manual gas shutoff valve.
•  Turn off the electrical supply to the unit.
  4. Remove the control access panel with a 5/16-in. nut driver. (See Fig. 2.)
  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 within 5 seconds, the ignition module will go into a Retry Mode after a period of approximately 22 seconds (following the 5-second ignition period). If the burners do not light within 15 minutes of the initial call for heat, there is a lockout.
  11. Set the temperature selector on room thermostat to desired setting.

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. Should overheating occur or the gas supply fail to shut off, shut off the external manual gas valve to the unit before shutting off the electrical supply. Do not use this unit if any part has been under water. Immediately call a qualified service technician to inspect the unit and to replace any part of the control system and any gas control which has been under water. Refer to Fig. 5 while proceeding with the following steps.

•  Set the temperature selector on room thermostat to lowest temperature setting and set system SWITCH to OFF.
•  Close the external manual shutoff valve.
•  Turn off the electrical power supply to the unit.
•  Remove the control access panel. (See Fig. 2.)
•  Move the selector switch on the internal gas valve to the OFF position.
•  Replace the control access panel

To start unit electric cooling:

• Refer to Fig. 6 while proceeding with the following steps.
•  Set the temperature selector on room thermostat to highest temperature setting and set system SWITCH to OFF.
•  Close the external manual shutoff valve, if not already closed.
•  Turn ON the electrical power supply to the unit.
•  Set system switch to COOL.
•  Set the temperature selector on room thermostat slightly below the room temperature to start unit.

To shut off unit electric cooling:

• Refer to Fig. 7 while proceeding with the following steps.
•  Set the temperature selector on room thermostat to highest temperature setting and set system SWITCH to OFF.
•  Close the external manual shutoff valve, if not already closed.
•  Turn off the electrical power supply to the unit.

Operating Your Unit

The operation of your unit is controlled by the indoor temperature control (thermostat). You simply adjust the thermostat and it maintains the indoor temperature at the level you select. Most thermostats of heating and cooling systems have 3 controls: a temperature control selector, a FAN control, and a SYSTEM or MODE control. Refer to your thermostat owner’s manual for more information. To better protect your investment and to eliminate unnecessary service calls, familiarize yourself with the following facts:

Cooling Mode
With the SYSTEM control set to COOL, your unit will run in cooling mode until the indoor temperature is lowered to the level you have selected. On extremely hot days, your unit will run for longer periods at a time and have shorter “off” periods than on moderate days.
Gas Heat Mode
With the SYSTEM or MODE control of your indoor thermostat set to HEAT, your unit will run in heating mode until room temperature is raised to the level you have selected. On cold days and nights, your system will typically run for longer periods of time and have shorter “off” periods than on moderate days.

Maintenance and Service

This section discusses maintenance that should be performed on your system. Most maintenance should be performed by your dealer. You, as the owner, may wish to handle some minor maintenance for your new unit.

Routine Maintenance (See Table 2)

Most routine maintenance should be handled by skilled, experienced personnel. Your dealer can help you establish a standard procedure. For your safety, keep the unit area clear and free of combustible materials, gasoline, and other flammable liquids and vapors.

To Start Unit Gas Heat
To Shut off Unit Gas Heat
To Start Unit Electric Cooling
To Shut-off Unit Electric Cooling

Maintenance and Care for the Equipment Owner

Clear Away Debris and Vegetation Near Unit 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 side (42 in. [1067 mm] clearance) and the duct side (12 in. [305 mm] minimum clearance). Also, ensure that the return-air duct connection (s) is physically sound, is sealed to the furnace casing, and terminates outside the space containing the furnace.

Air Filters

The air filter(s) should be checked every 3 or 4 weeks and changed or cleaned whenever it becomes dirty. Dirty filters produce excessive stress on the blower motor and can cause the motor to overheat and shut down.This unit must have air filters in place before it can be operated. These filters can be located in one of at least two places. In many applications,the installer will provide return air filter grilles mounted on the wall or ceiling of the conditioned structure. In the instance of filter grilles, the filters can simply be removed from the grille and replaced. When replacing filters, always use the same size and type of filter that was supplied originally by the installer.

Maintenance and Care for the Dealer

Filter in Unit

• The other typical application is an accessory filter rack installed inside the unit itself. The following information is given to assist in changing filters used in these internal filter racks.
• Filter kits are available as a purchased accessory. The same filter kit is included with the accessory economizers and factory-installed economizers.
• To replace or inspect filters in the accessory filter rack (See Fig. 2):
•  Remove the filter access panel using a 5/16-in. nut driver.
•  Remove the filter(s) by pulling it out of the unit. If the filter(s) is dirty, clean or replace with a new one. When installing the new filter(s), note the direction of the airflow arrows on the filter frame which should be pointing at the indoor coil.
•  Reinstall filter access panel ensuring opening is air and water tight. If you have difficulty locating your air filter(s) or have questions concerning proper filter maintenance, contact your dealer for instructions. When replacing filters, always use the same size and type of filter that was supplied originally by the installer. See Table 1 for filter sizes supplied with accessory filter rack

Table 1 – Replacement Filter Sizes

(508 x 305 x 25 mm)

30-040/060| 2 each 20 x 12 x 1

(508 x 305 x 25 mm)

36-060| 2 each 20 x 12 x 1

(508 x 305 x 25 mm)

42-060/090| 1 each 24 x 14 x 1 (610 x 356 x 25 mm),

24 x 16 x 1 (610 x 406 x 25 mm)

48-090| 1 each 24 x 14 x 1 (610 x 356 x 25 mm),

24 x 16 x 1 (610 x 406 x 25 mm)

60-090*| 1 each 24 x 16 x 1 (610 x 406 x 25 mm),

24 x 18 x 1 (610 x 457 x 25 mm)

Small Chassis

•  Remove return air duct cover at rear of unit using a 5/16-in. nut driver.
•  Remove the filter(s) by pulling it out and through the unit duct opening. If filter is dirty, replace both filters with new ones. When installing the new filters, note the direction of the airflow arrows on the filter frame, which should be pointing at the indoor coil.
•  Reinstall duct cover ensuring opening is air and watertight.

Large Chassis

•  Remove filter access door using a 5/16-in. nut driver.
•  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 Units with bent indoor coils, install 24 x 18 x 1 (610 x 457 x 25 mm) filter first and then install 24 x 16 x 1 (610 x 406 x 25) filter. When installing the new filters, note the direction of the airflow arrows on the filter frame, which should be pointing at the indoor coil.
•  Reinstall filter access door ensuring opening is air and water tight.

Condensate Drain

The drain pan and condensate drain line should be checked and cleaned at the same time the cooling coils are checked by your dealer.

Indoor and Outdoor Coils

Cleaning of the coils should only be done by qualified service personnel. Contact your dealer for the required annual maintenance.

Electrical Controls and Wiring

Electrical controls are difficult to check without proper instrumentation. If there are any discrepancies in the operating cycle, contact your local dealer and request service. Fans and Fan MotorsPeriodically check the condition of fan wheels and housings and fanmotor shaft bearings. Contact your dealer for the required annual maintenance.CompressorAll compressors are factory shipped with a normal charge of the correcttype of refrigeration grade oil. A compressor should rarely require additional oil.

Condenser (Outdoor) Fan

The fan must be kept free of all obstructions to ensure proper cooling. Contact your dealer for any required service. Combustion Air Openings and Flue/Vent HoodFor proper and safe operation, the furnace needs air for combustion and ventilation. The air openings, on the furnace, the air openings to the area in where the furnace is installed, and the spacing around the furnace must not be blocked or obstructed.The combustion area and flue/vent hood should be inspected visuallybefore each heating season (see Fig. 3). The normal accumulation of dirt,soot, rust, and scale can result in loss of efficiency and improperperformance if allowed to build up. This inspection should be done by atrained service person.

Refrigerant Circuit

The refrigerant circuit is difficult to check for leaks without the proper equipment. If inadequate cooling is suspected, contact your local dealer for service.

Unit Panels

• After performing any maintenance or service on the unit, be sure all panels are fastened securely in place to prevent rain from entering unit cabinet and to prevent disruption of the correct unit airflow pattern.
• Regular Dealer Warranty Certificate
• Your unit has a limited warranty. Be sure to read the warranty carefully to determine the coverage for your unit.
• Before you call for service check for several easily-solved problems. If insufficient heating or cooling is suspected:
• Check for sufficient airflow. Check the air filter for dirt. Check for blocked return-air or supply-air grilles. Be sure they are open and unobstructed. If these checks do not reveal the cause, call your servicing dealer.

If your unit is not operating at all, check the following list for easy solutions:

•  Check to be sure that your thermostat temperature selector is set below the indoor temperature during the cooling season or above the indoor temperature during heating season. Be sure the SYSTEM switch or MODE control is in the COOL or HEAT position and not in the OFF position.
•  If your unit still fails to operate, call your servicing dealer for troubleshooting and repairs. Specify the model and serial numbers of your unit. (Record them in this manual in the space provided.) If the dealer knows exactly which unit you have, he may be able to offer suggestions over the phone, or save valuable time through knowledgeable preparation for the service call.

In Case of Trouble
If you perform the steps above and unit performance is still unsatisfactory, shut off the unit and call your dealer.

Table 2 – Maintenance Checklist

DESCRIPTION OF MAINTENANCE

Inspect, clean, or replace air filter if filter is located indoors in return air grill.| X|
Clear away debris and vegetation near unit.| X|
Dealer specific:
Inspect cabinet and basepan for damage. Replace panels, gaskets, and other components that are damaged or severely rusted. Make sure precipitation has not entered indoor section of unit.| | X
Inspect electrical disconnect for proper function. Repair or replace as necessary.| | X
Inspect electrical wiring and connections. Tighten loose connections. Inspect and perform functional test of equipment as needed to ensure proper function. Repair or replace damaged or overheated components and wiring.| | X
Inspect temperature and pressure safety controls for damage| | X
Inspect and clean if necessary, combustion air openings and vent hood| | X
Check gas piping and shutoff valve for leaks.| | X
Check refrigerant system subcooling and/or superheat (system dependent).| | X
Inspect inside of unit. Clean if debris is present.| | X
Inspect condenser coil. Clean if dust, dirt, or debris is present. Rinse unit with fresh water (see Note 2).| | X
Inspect condenser motor and fan for damage. Make sure fan spins freely.| | X
Inspect and clean blower assembly (includes blower housing, wheel, and motor).| | X
Inspect evaporator coil. Clean if dust, dirt, or debris is present (see Note 2).| | X
Clean condensate pan and drain lines (more frequent maintenance may be required in humid climates – consult your local HVAC dealer).| | X
Inspect airflow system (ductwork). Check for leaks and repair as needed.| | X

References

• Kidde Fire Safety Products and Education | Kidde

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