Carrier 50GL-A User Manual

50GL---A Single Packaged 50 H z, CE Air Conditio n er Sy s t em with Puron (R ---410A) Refrigerant 7---14 kW (Sizes 24---48)

Owner’s Information Manual

A09042

Fig. 1 -- Unit 50GL--A

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 #)

_____________________________________________

INSTALLATION INFORMATION

Date Installed ________________________________

DEALERSHIP CONTACT INFORMATION

Company Name_______________________________

Address______________________________________

_____________________________________________

Phone Number _______________________________

Technician Name _____________________________

_____________________________________________

NOTE TO INSTALLER:

This manual must be left w ith the equipment owner.

SAFETY CONSIDERATIONS

Imprope r installation adjustment, alteration, service, maintena nce, or use can cause 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. Use quenching cloth for brazing operations. Have a fire extinguisher available. Read these instructions thoroughly and follow all warnings or cautions included in literature and attached to the unit. Consult local building codes, the current editions of the National Electrical Code (NEC) NFPA

70.

In Canada refer to the current editions of the Canadian electrical Code CSA C22.1.

Recognize safety information. This is the safety--alert symbol When you see this symbol on the unit and in instructions or 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 result in minor personal injury or product and property damage. NOTE is used to highlight suggestions which will result in enhanced installation, reliability, or operation.

Note: Installer: This manual should be leftwith the equipment user.

FIRE, EXPLOSION, ELECTRICAL SHOCK HAZARD

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

FIRE, EXPLOSION HAZARD

Failure to follow this warning could resultin personal injury, death, and/or property damage.

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

ELECTRICAL SHOCK HAZARD

Failure to follow this warning could result in personal injury and/or death.

Before performing recommended maintenance, be sure the main power switch to unit is turned off and lock--out tag is installed.

WARNING

CUT HAZARD

Failure to follow this caution may result in personal injury.

When removing access panels or performing maintenance functions insideyour 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.

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.

Starting or Shutting Unit Off

To start the unit:

1. Turn on the electrical power supply to unit.

2. Select temperature and set MODE control to desired mode.

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

your dealer as soon as possible.

1. Set system MODE control to OFF.

2. Turn off the electrical power supply to unit.

The operation of your unit is controlled by indoor thermostat. You simplyadjustthethermostatand it maintainsthe indoortemperature at the level you select. Most thermostats of cooling systems have 3 controls: a temperature controlselector, a FAN control,and a SYSTEM or MODE control. Refer to your thermostat owner’s manual for more information.

To better protect your investmentand to eliminate unnecessary service calls, familiarize yourself with the following facts:

Step 1—Cooling Mode

With the SYSTEM or MODE 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.

Step 2—Heating Mode (if installed with optional electric heat)

Your system may also be equipped with an electric heating source. On cold days and nights, place your MODE control to HEAT and your system will automatically turn on the supplemental heat in order to maintain the level of comfort you have selected.

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. Yourdealercan help you establish a standard procedure.

To assureproper functioning of the unit, flow of condenserair must not be obstructed from reaching the unit. Clearance from the top of

CAUTION

WARNING

OPERATING YOUR UNIT

MAINTENANCE AND SERVICE

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