708619-0 S3BN AC Commercial II.indd - Nordyne

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USER’S INFORMATIONIMPORTANTRead this owner information to become familiarwith the capabilities and use of your appliance.Keep this with literature on other applianceswhere you have easy access to it in the future.If a problem occurs, check the instructions andfollow recommendations given. If these suggestionsdon’t eliminate your problem, call yourservicing contractor .OPERATING INSTRUCTIONSTo Operate Your Air Conditioner forCooling —1. Set the thermostat system switch to COOLor AUTO and the thermostat fan switch toAUTO. (See Figure 1)2. Set the thermostat temperature to thedesired temperature level by pressing theWARMER or COOLER button. Please referto the separate detailed thermostat user’smanual for complete instructions regardingthermostat programming. The outdoor unitand indoor blower will both cycle on and offto maintain the indoor temperature at thedesired cooling level.To Operate Your Furnace for Heating —1. Set the thermostat system switch to HEATor AUTO and the thermostat fan switch toAUTO. (See Figure 1)2. Set the thermostat temperature to thedesired temperature level by pressing theWARMER or COOLER button. Please referto the separate detailed user’s manual forcomplete thermostat programming instructions.The furnace and indoor blower willcycle on and off to maintain the indoortemperature at the desired heating level.To Shut Off Your Air Conditioner —Set the thermostat system switch to OFF and thethermostat fan switch to AUTO. (See Figure 1).The system will not operate, regardless of thethermostat temperature setting.Figure 1. Typical ThermostatSet the thermostat fan switch to ON (See Figure1). The indoor blower will start immediately, andwill run continually until the fan switch is resetto AUTO.The continuous indoor blower operation can beobtained with the thermostat system switch setin any position, including OFF.The continuous indoor blower operation is typicallyused to circulate the indoor air to equalizea temperature unbalance due to a sun load,cooking, or fi replace operation.To Maintain Your Air Conditioner —CAUTION:Be certain the electrical powerto the outdoor unit and thefurnace/air handler is disconnectedbefore doing the followingrecommended maintenance.1. Regularly:a. Clean or replace the indoor air fi lter at thestart of each heating and cooling season,and when an accumulation of dust and dirtis visible on the air fi lter.b. Remove any leaves and grass clippingsfrom the coil in the outdoor unit, beingcareful not to damage the aluminum fi ns.To Operate the Indoor BlowerContinuously —2
CAUTION:Do not over-oil, or oil motors notfactory-equipped with oil tubes.The compressor is hermetically“sealed” and does not requirelubrication.c. Check for any obstructions, such as twigs,sticks, etc.2. Before Each Cooling Season:If the furnace/air handler blower motor andthe outdoor unit fan motor(s) have oil tubesat the motor bearings, apply 10 drops ofSAE No. 20 motor oil to each oil tube.3. Before Calling a Service Technician, BeCertain:a. The unit thermostat is properly set — see“To Operate Your Air Conditioner forCooling” and “To Operate Your Furnacefor Heating.”b. The unit disconnect fuses are in goodcondition, and the electrical power to theunit is turned on.1. GENERAL INFORMATIONRead the following instructions completely beforeperforming the installation.Condensing Unit Section — Each condensingunit is shipped with a refrigerant holding chargeadequate to maintain a positive pressure to keepout contaminants.NOTE: DO NOT USE ANY PORTION OF THECHARGE FOR PURGING OR LEAK TEST-ING.Liquid and Suction Lines — Refrigerant gradecopper tubing should be used when installing thesystem. Refrigerant suction line tubing shouldbe fully insulated.When condensing unit is matched with two airhandlers (two coils) or a dual circuited evaporatorcoil, refrigerant tubing should be branchedbetween both evaporator coils or circuits usingequal lengths of tubing to maintain equal evaporator/circuitperformance.Field Connections for Electrical Power Supply— All wiring must comply with current provisionsof the “National Electrical Code” (ANSI C1.) andwith applicable local codes having jurisdiction. Theminimum size of electrical conductors and circuitprotection must be in compliance with informationlisted on the outdoor unit data label.2. SAFETY CONSIDERATIONSPressures within the System — Split systemair conditioning equipment contains liquid andgaseous refrigerant under pressure. Installationand servicing of this equipment should beaccomplished by qualified, trained personnelthoroughly familiar with this type of equipment.Under no circumstances should non-qualifiedpersonnel attempt to install and/or service theequipment.Labels, Tags, Precautions — When workingwith this equipment, follow all precautions in theliterature, on tags, and on labels provided withthe equipment. Read and thoroughly understandthe instructions provided with the equipment priorto performing the installation and operationalcheckout of the equipment.Brazing Operations — Installation of equipmentmay require brazing operations. Safety codesmust be complied with. Safety equipment (e.g.;safety glasses, work gloves, fire extinguisher,etc.) must be used when performing brazingoperations.CAUTION:Ensure all electrical power to theunit is off prior to installing orservicing the equipment. Failureto do so may cause personal injuryor death.3. SITE PREPARATIONUnpacking Equipment — Remove the cardboardcarton and User’s Manual from the equipment.Take care not to damage the tubing connectionswhen removing the carton.Inspect for Damage — Inspect the equipmentfor damage prior to installing the equipment at3
Page 1: Outdoor Air ConditionerUser’s Inf
Page 5 and 6: 7. MAKING ELECTRICALCONNECTIONSWARN
Page 7 and 8: After allowing the unit to run for
Page 9 and 10: Refrigerant Charging Charts40037535
Page 11 and 12: PHYSICAL AND ELECTRICAL SPECIFICATI

708619-0 S3BN AC Commercial II.indd - Nordyne

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