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48EZ---A and 48VT---A
Comfort™ and Performance™ 13and 14SEER
Single Packaged Hybridr Heat Dual Fuel System
With Puron (R---410A) Refrigerant
Single and Three Phase
2---5 Nominal Tons (Sizes 24---60)
Owner’s Information Manual
A09034 A09033
48EZ--AWithoutEconomizer 48VT--AWithoutEconomizer
A10078
48VT--A
A10077
48EZ--AWithEconomizer 48VT--AwithEconomizer
Fig.2 -- Unit48VT--A
Fig.1 -- Unit48EZ--A
1
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NOTETOEQUIPMENTOWNER: 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 INSTALLATIONINFORMATION Model # _____________________________________ Date Installed________________________________ Serial # ______________________________________ DEALERSHIPCONTACTINFORMATION Compan
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UNITINTRODUCTION ! WARNING The 48EZ--A and 48VT--A units are small packaged gas heat/electricheat pump systems thatcan utilizeboth theefficiency FIREANDEXPLOSIONHAZARD of heat pump heating and the comfort of gas heating. The system Failure to follow this hazard warning could result in will optimize for ideal heating, depending on several factors. This personalinjury,deathand/orpropertydamage. unit uses Puron ®, the ozone friendly refrigerant, for cooling and heat pump heating. Whatto do ifyou sm
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11. Set the temperature selector on room thermostat to desired 5. Move the selector switch on the internal gas valve to the setting. OFF position. 6. Replace the control access panel. WARNING Tostartunitelectriccooling: ! Refer to Fig. 7 while proceeding with the following steps. FIREANDEXPLOSIONHAZARD 1. Set the temperature selector on room thermostat to highest temperature setting and set system SWITCH to OFF. Failure to follow this warning could result in personal 2. Close the external manual
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E N S E P O O L C MAIN ON 55 OFF STEP 1 STEP 2 STEP 3 STEP 5 STEP 4 STEP 6 STEP 7 MAIN ON 72 OFF STEP 8 STEP 9 STEP 10 A07662 Fig.5 -- To StartUnitGasHeat 5
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E E S S O O L L C C MAIN ON 55 OFF STEP 1 STEP 2 STEP 3 STEP 4 STEP 5 STEP 6 A07663 Fig.6 -- To ShutOffUnitGasHeat MAIN ON 72 90 OFF STEP 2 STEP 4 & 5 STEP 1 STEP 3 A09194 Fig.7 -- To StartUnitElectricCooling 6
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E S O L C MAIN ON 90 OFF STEP 1 STEP 2 STEP 3 A07797 Fig.8 -- To ShutOffUnitElectricCooling DefrostMode ! Whenyourheatpumpis providingheat toyour homeor officeand WARNING the outdoor temperature drops below 45 °F(7.2 °C), moisture may FIRE, EXPLOSION, ELECTRICAL SHOCK AND begin to freeze on the surface of the coil. If allowed to build up, CUTHAZARD this ice would impede airflow across the coil and reduce the amount of heat absorbed from the outside air. So, to maintain Failure to follow this war
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When installing the new filter(s), note the direction of the airflow arrows on the filter frame, which should be pointing at the indoor ! CAUTION coil. 3. Reinstall filter access panel ensuring opening is air and UNITOPERATIONHAZARD watertight. Failure to follow this caution may result in property If you have difficulty locating your air filter(s) or have questions damage. concerning proper filter maintenance, contact your dealer for Never operate your unit without filters in place. An instructi
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CondensateDrain ! The drain pan and condensate drain line should be checked and WARNING cleaned at the same time the cooling coils are checked by your dealer. FIRE,EXPLOSIONHAZARD Compressor Failure to follow this warning could result in personal injury,deathand/orpropertydamage. All compressors are factory shipped with a normal charge of the correct type and quantity of refrigeration grade oil. A compressor If your unit makes an especially loud noise when the main should rarely require addition
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SYSTEM switch or MODE control is in the COOL or HEAT and Beforeyoucallforservice... not OFF. ...check for several easily--solved problems. ( ) If your unit still fails to operate, call your servicing dealer for Ifinsufficientheating orcooling issuspected: troubleshooting and repairs. Specify the model and serial numbers ( ) Check for sufficient airflow. Check the air filter for dirt. Check of yourunit. (Recordthem inthis manualin thespace provided.)If for blocked return--air or supply--air grill
