Carrier 48ES User Manual

48ES Single---Packa ged Gas Heat/Electric Cooling

with Puron

(R---410A) Refrigerant

Owner’s Information Ma nual

Fig. 1 -- Unit 48ES

NOTE TO EQUIPMENT OWNER:

For your convenience, please record the model and serial numbers of your new equipment in the spaces provided. This information, along with the installation data and dealer contact information, will be helpful should your system require maintenance or service.

UNIT INFORMATION

Model # _____________________________________

Serial # ______________________________________

ACCESSORIES (List type and model #)

_____________________________________________

NOTE TO INSTALLER:

This manual must be left with the equipment owner.

INSTALLATION INFORMATION

Date Installed ________________________________

DEALERSHIP CONTACT INFORMATION

Company Name_______________________________

Address______________________________________

_____________________________________________

Phone Number _______________________________

Technician Name _____________________________

_____________________________________________

SAFETY CONSIDERATIONS

Installation and servicing of this equipment can be hazardous due to mechanical and electrical components. Only trained and qualified personnel should install, repair, or service this equipment.

Untrained personnel can perform basicmaintenance functions such as cleaning and replacing air filters. All other operations must be performed by trained service personnel. When working on this equipment, observe precautions in the literature, on tags, and on labels attached to or shipped with the unit and other safety precautions that may apply.

UNIT INTRODUCTION

This 48ES 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 PuronE, the ozone friendly refrigerant for cooling.

Starting or Shutting Off Unit

To start the unit:

1. Turn on the electrical power supply and gas to unit.

Follow all safety codes. Installation must be in compliance with local and national building codes. Wear safety glasses, protective clothing, and work gloves. Have fire extinguisher available. Read these instructions thoroughly and follow all warnings or cautions included in literature and attached to the unit.

Recognize safety information. This is the safety--alert symbol Whenyou see this symbolon the unitand in instructionsor manuals, be alert to the potential for personal injury.

Understand these signal words; DANGER, WARNING, and CAUTION. These words are used with the safety--alert symbol. DANGER identifies the most serious hazards which will result in severe personal injury or death. WARNING signifies hazards which could result in personal injury or death.CAUTION is used to identify unsafe practices which may resultin minor personal injury or product and propertydamage. NOTE isusedtohighlight suggestionswhich

will result in enhanced installation, reliability, or operation.

Note: Installer: This manual should be left with the equipment user.

CAUTION

FORYOURSAFETY

Failure to follow this caution may result in personal injury.

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

2. Select desired temperature on thermostrat and set SYSTEM switch or MODE control to desired mode.

To shut off unit:

Note: If the unit is being shut down because of a malfunction, call

your dealer as soon as possible.

1. Set system SWITCH or MODE control to OFF.

2. Turnoff the electrical power, install lock--out tag and shut off gas supply to unit.

OPERATING YOUR UNIT

The operation of your unit is controlled by the indoor temperature control. You simply adjust the thermostat and it maintains the indoor temperatureat thelevelyou select.Mostthermostatsof heating and cooling systems have 3 controls: a temperaturecontrolselector, a FAN control, and a SYSTEM or MODE control. Refer to your thermostat owner’s manual for more information.

To better protectyour investment and to eliminate unnecessary service calls, familiarize yourself with the following facts:

Step 1—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.

FIRE,EXPLOSION,ELECTRICAL SHOCK HAZARD

Failure to follow this warning could result in personal injury, death or property damage.

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 which has been under water.

ELECTRICAL SHOCK HAZARD

Failure to follow this warning could result in personal injury, death or property damage.

When removing access panels or performing maintenance functions inside your unit, be awareof 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 reaching into the unit.

WARNING

Step 2—Gas Heat Mode

With the SYSTEM or MODE control of your idoor thermostat set to HEAT, your unit willrun in heating mode untilroom temperature is raised to the level you have selected. Of couse, your system will run for longer periods to maintain a comfortable environment on cooler days and nights than on moderate ones.

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

All routine maintenance should be handled by skilled, experienced personnel. Yourdealer can help you establish a standard procedure.

For your safety,keepthe unit area clearand freeof combustiblematerials, gasoline, and other flammable liquids and vapors.

To assure properfunctioning of the unit, flow of condenserairmust 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. clearance) (1067mm)and the duct side(12 in. minimum clearance)(305mm).

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