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Installation & Operating Instructions For Air Conditioning units Manufactured By GOETTL AIR CONDITIONING , INC . P . O . Box 52029 , Phoenlx , Arlzona 85072 - 2029 B
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: : _ . " " _ : T " _ - _ " - _ T _ - _ ; ' _ : _ : ' - - , 71 ¸ - PAGE I . INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 II . DIMENSIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 III . POWER SUPPLY & WIRING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 IV . INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 V . START UP / CHECK - OUT PROCEDURE . . . . . . . . . . . . . . . . . . . . . . . . 6 Vl . ELECTRICAL OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Vll . RESISTANCE HEATERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Vlll . OPERATION AND MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 IX . WIRING DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
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iNSTAELATION ' AND OPERATING INSTRUCTION ? MANUA SC MODELS COOLING ONLY - 1 1 / 2 - S 1 / 2 TONS Please take a few minutes to read ourinstructionsbefore you installand use yourairconditioner . This will help you obtain the full value from your air conditioner . It will also help you avoid any needless service costs that result from causes we cannot control and cannot cover in our guarantee . RULES FOR INSTALLATION AND SAFE OPERATION 1 . Read these rules and the instructionscare - 4 . Refer to Section VIII for maintenance pro - cedures . fully . Failure to follow the rules and the instructions could cause a malfunction of 5 . Do notoperate thisunit at outdoortempera - the air conditioning unit resulting in injury , tures below 60 ° F on cooling . death and / or property damage . 6 . The components of an air conditioner may 2 . Check your local codes and utility start - have sharp edges or protrusions which can dan : Is . The installation must comply with cut you . The tubing and compressor con - their rules . tain high pressure refrigerant . They must . Shut off the electric power before making hot be exposed to high temperature or be connections on the unit or removing panels punctured . When installing or servicingthe . for servicing . ( There may be more than one air conditioner , be extremely careful to disconnect ) . avoid injury . The importance of proper installationcannot be overemphasized . The best designed unitwillappear to operate poorly if installed improperly . Unlike the small appliance where quality of operation can usually be determined as it leaves the factory , the performance of an air conditioner depends , to a large extent , on its installation . Problems always occur if the installer does not take precautions in the following areas : Wire Size Inadequate wire sizes can cause an excessive voltage drop , causing the compressor and fan motors to operate at undesirably low voltage rates . Duct Size Inadequate duct size , elbows , distributors or registers can restrict air flow . Duct Openings - Improperly sealed duct sections can cause considerable loss in cooling capacity due to air leakages . Duct Insulation - Inadequate duct insulationin attic space will cause heat gain in the system . Refrigerant Gtmrge - Unit is precharged , but should a change be necessary , it should be verified againstthe operating system pressures , temperatures , and current draws as specified in the catalog . These air conditioners have proven their reliability over several decades . Years of research , engineering and onlythe highestqualitycomponent parts andworkmanshiphave gone intothese units to make them the most reliableinthe industry . Before a model is released for production , it undergoes a ; battery of tests in environmentaltest roomswith conditions of up to 120 ° F desert temperatures . = t - 1 -
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when installedinan unconditionedarea . Where It is very important that the ducts for a self - contained system be properly sized , installed , the supply duct is exposed to the outdoor sealed , and insulated for the best performance temperatures , vapor barrier material should be used . All duct work should be installed in ofthe system . It is recommended that boththe accordance with ASHRAE or NAHB . supply and the return duct be insulated ( 2 " ) SC MODELS Model A B C D E F G H J K L , 181F1 43 1 / 4 323 / 8 24 20 141 / 2 6 1 1 6 _ s 1112 21 / 2 245F2 49 1 / 4 33 3 / 4 30 21 14 1 / 2 6 7 1 63 _ 11 / 2 21 / 2 305F2 49 1 / 4 33 3 / 4 30 21 14 1 / 2 6 7 1 63 / 8 11 / 2 21 / 2 365F1 49 _ / 4 - - 33 3 / 4 30 21 201 / 2 6 1 1 63 / 8 11 / 2 21 / 2 425F 491 / 4 333 / 4 30 21 17 93 / 8 1 lJ8 1 6 _ 1 I / 2 21 / 2 485F 573 / 4 443 / 8 301 / 4 32 16114 10 1 114 1 63 / 16 2 23 / 4 605F 573 / 4 44us 301 / 4 32 161 / 4 10 1 1 / 4 1 63 / 16 2 23 / 4 662A 573 / 4 443 / 8 341 / 4 _ 231 / 2 7 1 1 5 lJ8 1 3 / 4 23 / 4 " See Rg . 2 - 2 -
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I . . L Page 9 shows a typical wiring diagram for the at the " L " terminals of contractor , through various units . However , each unit willhave its knockout in side of unit . These connections appropriate widng diagram attached to the must be tight and electrically secure . A fused access panel of the wiring control section . All disconnect must be installed at the unit loca - wiring and fusing must comply with local tion . When the unit is outdoors , the fused and national electrical code requirements . disconnect must be weather tight . The fuse ( s ) The 24 volt control circuit connections are should be dual element type . Fuse and made at the right side of the panel ( See figs . 1 ampacity ratings are listed in the table below and 2 ) . The main power connections are made and also on the rating plate on the unit . CAUTION : Unit must always be grounded Witha suitable ground connection . ELECTRICAL DATA AT 230V I Ph 48,0 60.0 72.5 88.0 104,0 129.0 169.0 147,0 Locked Rotor Amps 3Ph " 7 " / ' . O . 88.0 99.0 123,0 150.0 Compressor 1Ph 9.0 11.5 13.5 16.0 17.9 23.7 25,0 30,8 Rated Load Amps _ 3Ph " 10.3 12,5 13,5 18.0 17.3 Full Load 1Ph 1,3 1.3 1.3 2,0 1.9 1.9 1.8 3.1 Outdoor Mofor Amps _ 3Ph * 2,0 1.9 1,9 1,8 3.1 FullLoad 1Ph 1,2 1.3 1,4 2,4 3.1 3.3 4,0 5.1 Indoor Motor . - _ _ . - Amps _ 3Ph " 2,4 3.1 3.3 " 4.0 5.1 1 Ph 20,0 25.0 30,0 40.0 45.0 55.0 60.0 60.0 Ma _ nurnFuseSize . Am _ 3Ph " 25,0 30.0 35.0 45.0 45.0 1 Ph 13.8 17.0 19,8 24,4 27.4 34.9 37.0 47.0 M _ nimum Cb'cuit Ampacity m 3Ph " 17.3 20.6 22.1 28.3 29.8 . t - 3 -
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ROOF " MOUNTED UNIT i I WALLS TYPICAL ROOF MOUNTED INSTALLATION with rubber , cork or spring mounts . These This system is a completely serf - contained mounts are to help eliminate vibration and cooling unitwith all components inone cabinet . noise . Groundinstallationis basicallythe same Itis shipped completely charged withthe proper for both self - contained units and split - system amount of refrigerant . The unit is ready for outdoor units . Locate the unit on a concrete operation after connecting duct work , conden - slab or blocks not connected to the buildings sate drain and power supply . An adhesive foundation . Allow adequate clearance for ser - backed soft - foam weather strip or caulking must be attached on the horizontal channel vice and air intake and discharge . The unit must be level inorder to assure proper conden - batween the supply and return air openings as sate drainage , and the gravityflow condensate shown on page 5 . A condensate = p " trap must line should be a minimum of 3 / 4 inch I . D . be installed for every unit as shown also on diameter and be properly graded . page 5 . The actual amount of total refrigerant charge for each installation may have to ! } e . adjusted to LOCATION . _ _ . , . _ insure that unit performance characteristics Normally , the unit is installed outdoors either ( compressor electrical current draw , suction and discharge pressures ) are consistent with on the roof or ground , where practical . In those given in the application tables for the normal roof installation , the unit is placed on an angle iron frame and isolated from the frame applicable ambient conditions . - 4 -
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_ ' _ _ _ ls _ extm _ ly important thata condensate " P , i _ _ condensate trap will prevent the hot and humid - _ tW be installedi in the drain _ line below the outside air from being drawn into the _ ndi - bottom of the unit , as shown in the sketch tioned space through the drain line , thus below . reducing cooling and dehumidification of the unit . Apart from ensudng proper drainage , the SUPPLY SOFT - FOAM WEATHER STRIP ÷ RETURN AIR P " TRAP SYSTEM DRAIN TRAP - 5 -
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mometer be placed inthe return air and one PREUMINARY START - UP placed in the a _ rsupply . After allinsulating I . If power to unit has been disconnected for ofductwork and adjustments of air registers any extended period of time , restore power are complete , a temperature difference of twelve ( 12 ) hours prior to start - up proce - 15 ° to 20 ° is considered satisfactory . dure . 5 . When the above Steps are completed , a check of voltage and amperage should be made of all motors . These readings should COOUNG CYCLE CHECK - OUT be within 10 % of the performance ratings PROCEDURE given for the spodfic ambients . 1 . With thermostat calling for cooling and set 6 . Suction and discharge pressures should 10 ° below room temperature , engage dis - also be checked to ensure that they agree connect switch ( es ) to start system . reasonably well with the pressures shown 2 . Check the voltage at the compressor motor in the catalog for the prevailing ambient connections . If the voltage is 5 % below or conditions . Also , a suction superheat tern - 10 % above the rated voltage or there is a perature of 20 ° F plus or minus 5 ° F is com - mon for these units when the outdoor am - difference greater than 3 % between phases , shut down the system and call the blent is approximately 95 ° F . This shouldbe power company . A failure to do so may used as a gauge in determining that the cause damage to the equipment . system is not overcharged or has lostsome of its charge . 3 . After the unit is in operation , it will take about 30 minutes running time to Stabilize 7 . Finally , the thermostat should be checked the system . out to assure proper operation . Literature packed with the thermostat and sub - base 4 . In order to check for a properly working will provide information for this check out . system , it is recommended that a ther - trol . When the thermostat calls for " COOL - With the disconnect on " ON " position , voltage ING " , current from the " R " terminal is switched is supplied to the primary of the control trans - former and crankcase heater . The control on to the " Y " terminal causing the compressor 0 transformer reduces the voltage from 230 or contactor to be energized . The main contactor 208 to 24 volts for the low voltage and the closes the contacts inthe high voltage circuit . thermostat circuit . With a single - stage cool / The completion of thiscircuit will start both the single - stage beaLthermostat set in the cooling outdoor fan motor and the compressor . position , current is supplied from one side of The indoor fan relay which is intemally wired the 24 volt secondary of the controltransformer from " G " to " Y " inthethermostatsub - base is also tothe " R " terminalof the thermostat . The other side of this transformer connects to the main energized and startsthe indoor fan motor . The system will operate normallyand begin to cool . contractor coil through the high pressure con - | - 6 -
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Resistance heatersare available as an op - are needed , as a differentthermostator sub tional field - installed accessory for air condi - base may be required . tioners . Consult factory if resistance heaters . 1 . Be sure the filter is clean . Inspect every 30 Your new air conditioner compressor is days of operation ; if obstructed , clean or equipped with a Permanent Split Capacitor replace filter at once . DO NOT RUN WITH - motor . Therefore , ALWAYS WAIT AT OUT A FILTER . LEAST THREE MINUTES AFTER SHUT - TING UNIT OFF BEFORE TRYING TO 2 . Always let the thermostat control the RESTART . If the unit is started before the operation of the system . Never try to = sec - refdgerant pressures have a chance to bal - ond guess " the thermostat , or tamper with ance , the compressor motor may tdp on its it . Just set the thermostat at the comfort ovedoad , or , invery rare cases , blow a fuse . level desired AND LEAVE IT ALONE . If it Under any normal operation , this will not gets too chilly , just turn the thermostat happen . It is most likely to happen if a up a degree at a time untilthe desired level thermostat is chattering , or if the unit is is achieved . Don'tturn the thermostat back started too quickly . Do not be alarmed if and forth . thishappens . Justletthe pressures balance 3 . Air conditioners cannot cool off a house as out and then start the unit . fast as a furnace heats it . It pulls the . It is a good practice when there is a power temperature down slowly . Therefore , do outage , especially dudng severe thunder notturn on and expect immediate action . It storms , to switchoff your unitat the thermo - may take a day or so to pull down a hot , stat until the electdcal power has been moist house when the unit is first installed , permanently restored . This could prolong especially after it has been = soaked " in 100 - the life of your compressor . 110 ° ambient for days . 4 . Keep both the evaporator and condenser IMPORTANT - READ CAREFULLY coil surfaces clean . Accumulation of dirt will restrict the air flow and reduce the . Your new air conditioner contains a special performance of your unit . compressor warming electrical circuit to keep the compressor warm dudng long off 5 . Keep condensate drain lines clear and periods . Do not be alarmed ifthis creates a clean . All blower fan motors are factory light = humming " sound while the unit is not lubricated and require no attention . The running . The " hum " may or may not occur . compressor is hermetically sealed , requir - ing no attention . Whenever the power has been discon - 6 . Your new air conditioner is mounted out - nected from the unit for longer than twelve doors . Iti _ _ - od practice to treat it just as hours , be sure to turn the power back on you would your automobile if it was ex - twelve hours before starting the unit . This posed to the elements constantly ; an occa - will give the compressor warming circuit a sional coat ofwax willgive added protection chance to operate and protect the com - against the elements . pressor from damage . J - 7 -
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HOWTO GET THE MAXIMUM PLEASURE _ ture is about the same but there is discomfort . FROM YOUR AIR CONDmONER This is because the humidityis high . Indoors , the air should be beth cool and rela - In order that you may fully enjoy the comfort tively dry for comfort . Therefore , the cooling your Air Conditioner can bring you , an under - unit has been designed to remove beth heat standing of the basic principles involved are and moisture . outlined in the following paragraphs . THERMOSTAT SETrlNG : HEATING LOAD : Forcooling , a temperature of 75 to 78 degrees Any residential cooling system is the reverse of is preferred by most people . You may select a a heating system . Family livinghabits that help lower temperature setting if you wish and you the heating system hurt the cooling system . will probably have that temperature a good The heat pump , fumace , or boiler delivers heat portionofthe time . But do not be disappointed into the rooms and the heat that is created and condemn the equipment ifthe temperature within the house from electric lights , cooking , getsa few degrees warmer during hotweather . the TV set , etc . helps to heat the rooms - Set the thermostat at the temperature agree - therefore , that much less heat is required from able to the family and leave it there . the boiler , furnace , or heat pump . Do not be concerned if , in the evening , when Cooling is just the reverse . The cooling the outside temperature dropsbelowthe inside equipment removes heat and humidity . Any temperature , your air conditioning system is extra heat released into the rooms from these stillrunning . The entire structure of your house same sources will make the room air warmer has been soaking up heat from the sun all day and place an extra burden upon the equip - long . After the sun has set there is still a ment . tremendous amount of heat in the walls , ceil - ing , roof , furnishings , etc . , that must be dis - Let's take the heat caused by cooking . For posed of before the air conditioner stops run - example , four top burners of a gas range can ning . Outdoor temperatures can drop rapidly produce more heat than a three horsepower air after sundown , while the house and its fur - conditioner can remove . It is much more nishings continue to give off heat for several practical and economical to ventilate this con - hours . centrate heat and moisture load than it is to dispose of itthreugh your air conditioner . Here is a general rule . INDOOR BLOWER OPERATION Whenever you plan to have youroven or To improvethe efficiency ofthe unit , the blower range top burners on for more than few is operated on atime delay . Depending on the minutes dudng hot weather , close off outside ambient , the blower could delay start - the kitchen from the rest of the house , ing up for 5 to 15 seconds even though the open a window or outside door , and turn thermostat calls for cooling . When the ther - on your kitchen ventilator . mostat is satisfied , the blower could keep on runningfor 1 / 2 to 1 - 1 / 2 minutes longer . Do not You can also - effectively reduce the load on be alarmed if you do not hear - tim blower yourcoolingsystem by keepingwindowshades , running immediately after the unit is switched on . blinds , ordrapes closed or byinstallingawnings or canopies . Your unit is an Air Conditioner . It is producing There are days when the temperature is rela - cooled air . The cooling which is accomplished tively high , yet it is comfortable because the air by means of remote controls , is completely is dry . This is because the relative humidityis automatic , and requires no attention after set - low . There are other days when the tempera - ting to the comfort level you desire . I * - 8 -
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CT3 " - GOETTL AIR CONDITIONING , INC . P . O . Box 52029 • Phoenix , Arizona 85072 - 2029 613360 Rev . 9 / 96 2.5M
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