Rheem RKNL-B User Manual

USER’S INFORMATIONMANUAL

FOR YOUR COMBINATIONGAS HEATING/ ELECTRIC COOLING AIR CONDITIONINGUNIT

! WARNING

FIRE OR EXPLOSION HAZARD

Failure to follow safety warnings exactly could result in serious injury, death or property damage.

—Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance.

—WHAT TO DO IF YOU SMELL GAS

•Do not try to light any appliance.

•Do not touch any electrical switch; do not use any phone in your building.

•Leave the building immediately.

•Immediately call your gas supplier from a neighbor’s phone. Follow the gas supplier’s instructions.

•If you cannot reach your gas supplier,call the fire department.

—INSTALLATIONAND SERVICE MUST BE PERFORMED BY A QUALIFIED INSTALLER, SERVICE AGENCY OR THE GAS SUPPLIER.

IMPORTANT: READ THESE INSTRUCTIONS THOROUGHLY BEFORE ATTEMPTING TO OPERATE THIS FURNACE.

ST-A1111-03

71/2 THRU 121/2 TON MODELS

DO NOT DESTROY.

PLEASE READ CAREFULLY AND KEEP IN A SAFE PLACE FOR FUTURE REFERENCE BY A SERVICEMAN OR USER OF THIS APPLIANCE.

92-20802-102-00

INTRODUCTION

!Recognize this symbol as an indication of Important Safety Information!

This manual contains the operating instructions for your combination gas/electric year-round air conditioner. There are precautions that should be taken to maximize satisfaction from this air conditioner.

IMPORTANT: COMPLETELY READ ALL INSTRUCTIONS PRIOR TO ATTEMPTING TO OPERATE OR MAINTAIN THE PRODUCT.

This unit has been designed to give you many years of efficient, dependable comfort. With regular maintenance, your unit will operate satisfactorily year after year. Please read this manual to familiarize yourself with operation, maintenance and safety procedures.

SAFETY

Carefully follow these safety rules:

1.The area around the unit must be kept clear and free of all combustible materials including gasoline and other flammable vapors and liquids.

2.Do not block the combustion air inlets or the exhaust air outlet openings.

3.Do not operate the unit without all panels and doors securely in place.

! WARNING

SHOULD OVERHEATING OCCUR OR THE GAS SUPPLY FAIL TO SHUT OFF, SHUT OFF THE MANUAL GAS VALVE TO THE APPLIANCE BEFORE SHUTTING OFF THE ELECTRICAL SUPPLY.FAILURE TO DO SO CAN RESULT IN AN EXPLOSION OR FIRE CAUSING PROPERTY DAMAGE, SEVERE PERSONAL INJURY OR DEATH!

4.Any additions, changes or conversions required in order for the unit to satisfactorily meet the application needs should be made by a qualified installer, service agency or the gas supplier, using factory specified or approved parts. Read your WARRANTY. Contact the WARRANTOR for conversion information. The unit was equipped at the factory for use on NATURAL GAS ONLY. Conversion to LP GAS requires a special kit supplied by the WARRANTOR.

! WARNING

OBSTRUCTION OF THE AIR VENT ON AN LP TANK REGULATOR CAN CAUSE EXPLOSION OR FIRE RESULTING IN SERIOUS PERSONAL INJURY, DEATH OR PROPERTY DAMAGE. PERIODICALLY INSPECT AND CLEAN THE AIR VENT SCREEN TO PREVENT ANY OBSTRUCTION. KEEP PROTECTIVE REGULATOR COVER IN PLACE, AS EXPOSURE TO THE ELEMENTS CAN CAUSE ICE BUILDUP AND REGULATOR FAILURE.

5.A gas burner needs an adequate supply of combustion and ventilation air for proper and safe operation. Do not block or obstruct air openings on the unit. Do not place anything around the unit that could block the flow of fresh air to the unit.

6.Do not use this unit if any part has been under water. Immediately call a qualified installer, service agency or the gas supplier to inspect the unit and to replace any part of the control system or any gas control that has been under water.

! WARNING

DO NOT ALLOW DEBRIS SUCH AS LEAVES, GRASS, WEEDS, SHRUBS, VINES OR SNOW ACCUMULATE IN THE AREA SURROUNDING THE UNIT, PARTICULARLY IN THE VICINITY OF THE VENT, AIR INTAKE AND A/C CONDENSER FINS. DOING SO CAN RESULT IN INADEQUATE UNIT PERFORMANCE OR CREATE A FIRE HAZARD RESULTING IN PROPERTY DAMAGE, PERSONAL INJURY OR DEATH.

7.The combustion air inlet/exhaust outlet hood and surrounding area are very hot when operating in heating mode. Do not allow children to play on or around the unit.

SYSTEM OPERATION INFORMATION

Advice to the Customer

1.Keep the filter clean. Your system will operate more efficiently and provide better conditioned air.

2.Arrange your furniture and drapes so that the supply and return air registers and grilles are unobstructed.

3.Close doors and windows. This will reduce the cooling load on your system for a more economical operation.

4.Avoid excessive use of exhaust fans.

5.Window shades and awnings will reduce the cooling load.

6.Do not permit the heat generated by television, lamps or radios to influence the thermostat operation.

7.Except for the mounting platform, keep all combustible articles three feet from the unit and exhaust system.

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8.Unless you plan to remove panels to service the unit, do not disconnect the main power to your unit. This is a safety precaution for the protection of the compressor. Otherwise, use the thermostat switches to shut the system off.

9.For extended periods of inoperation, set the thermostat system switch in the “OFF” position and fan switch in the “AUTO” position.

10.Do not allow the unit to become a play stand for children.

11.IMPORTANT: Replace all blower doors and compartment cover after servicing the unit. Do not operate the unit without all panels and doors securely in place.

12.Do not allow snow or other debris to accumulate in the vicinity of the appliance.

THERMOSTAT

OPERATION

For cooling, position the system switch to “Cool” and the fan switch to “Auto.” If constant fan operation is desired, place the fan switch in the “On” position.

When heating is desired, position the system switch to “HEAT” and place the fan switch in the “Auto” position.

During the heating season, the operation of the warm air furnace is automatic. Your installing dealer has provided a wall mounted thermostat which is sensitive to the change in the temperature of the air moving around the thermostat. When the temperature of the air within the heated space surrounding the thermostat decreases, the thermostat switch functions to initiate the ignition sequence and open the gas valve.

The spark ignitor located on the main burner tray will safely ignite the gas (natural or LP) leaving the main burner ports. After approximately 45 seconds of burner operation, the blower control will start the blower. Warm air should now gently circulate from the supply diffusers throughout the dwelling and return to the furnace through return air grille(s).

When the temperature of the circulating air reaches the temperature setting of the thermostat, the gas valve will reclose, the heat exchanger will cool, and the blower will shut off after 90 seconds.

In the cooling mode, the compressor and circulation air motor are energized upon a call for cooling. When the thermostat is satisfied or turned to the “OFF” position, the compressor is de-energized, but the circulation air blower continues to operate for approximately 60 seconds to extract the residual cooling left in the cooling coil.

We suggest that you experiment with constant air circulation during the heating and cooling cycles. To achieve this style of operation, place the fan switch on the thermostat subbase to the “on” position. You may enjoy the comfort associated with the continuous air movement, constant air filtration, and the near even temperature from floor to ceiling.

With continuous air circulation, some condensation on the cooling coil can reevaporate at the end of each cycle and cause a buildup of humidity prior to the next cooling cycle.

SELECTION OF ROOM TEMPERATURE

It is most important to select the comfort temperature you desire for either heating or cooling by use of the thermostat temperature selector.

DO NOT PLAY WITH THE THERMOSTAT. SET IT AND FORGET IT.

If the temperature selection procedure is new to you, ask your installing contractor to familiarize you with the operation of the thermostat.

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