I don't understand the situation, Karl. Supply Air CFM, Min. with R-22 Refrigerant The units are completely assembled on rigid, permanently attached base rails. Something like a low refrigerant charge (find and fix the leak) or a defective refrigerant metering device could be at fault. In VAV systems, the supply air temperature, as well as the supply air volume, are continuous functions of zone air temperature. 0000012271 00000 n my compressor on my tempstar 2.5 ton gas pack comes on, but the condenser fan will not. New AC unit installed. 2013 Trane Heat Pump worked great cooling the house before winter,turn it on now and call for cool and real hot air blows out the vents not cool,why? Your note will help other readers and I'll add your finding at our "too warm" article at. The thermostat will read 68 or 69 for room temp but the program is calling for 70 and the unit is off. If not you'll need to change it. (Feb 1, 2015) Avery said:You've got everything covered except the price? ,CI[=d_OJX@Zx`^-nALYnfCrbx'gE)wLd"FfbeMCF"290 CP{'c#sJ ~G\C8. the superheat at 0C evaporating tempera- heat at 0C evaporating temperature. 0000018310 00000 n Units are highly efficient to provide you with individual comfort control as well as energy savings. REPAIR & DIAGNOSTIC FAQs for A/C at InspectApedia.com - online encyclopedia of building & environmental inspection, testing, diagnosis, repair, & problem prevention advice. 0000010434 00000 n said. is it my thermostat inside or something in the heat pump outside? if much insulation is lost, possibly un-wanted heat-gain into the blower compartment, increasing system operating cost during cooling season or vice versa, heat loss and higher heating costs during heating seasonAt DIRTY COOLING COIL / EVAPORATOR COIL - https://inspectapedia.com/aircond/Clogged_Evaporator_Coil.php we describe a blocked coolign coil and several problems that occur if insulation falls onto the cooling coil surfaces - on your system that might not be in the same area as the damage you describe.I wouldn't sweat a trivial nick or an inch of disturbed material but if the insulation is missing entirely over parts of the blower compartment or is loose enough to get drawn in I'd have it replaced. (Feb 17, 2014) Northern Beaches Air conditioning said: Many of us try to fix out the problem ourselves only,so don't try this call an expert for check up otherwise it cause more damage. %PDF-1.4 % The small white compartment box is open and it says UP/DOWN - that you can take the cartridge out to shut the AC unit off. Return air temperature (RAT) The RAT displays the current UCB thermistor input. EXCESSIVE SAT (SUPPLY AIR TEMPERATURE) CONTROL. The chilled water is provided by a district cooling system. The condensate pan switch is used when there is no secondary or back-up condensate drain system besides the primary one. I also notice yesterday that my outside unit fan blades iced up (shut the power off from the unit). Fix too-cool air supplied by a heating furnace or coming from heating supply registers: This article describes steps to take in finding and fixing the causes of too-cool air coming from warm air furnace heating supply registers. technicians only. BUT: they said the heat to the Rheem and the furnace fan should still go on even if the roof AC was off. unit not putting out cold air. And I agree that the circuit board could otherwise be the problem. 0000006726 00000 n (Nov 26, 2014) Michelle said:Heat mode works fine.In cooling mode, air is blowing but not cooling. So I figure you're not faced with an obvious problem like a switch turned off. Try the search box just below, or if you prefer, post a question or comment in the Comments box below and we will respond promptly. The process generates chilled water at 44F and supplies cooling coils throughout the plant that maintain room temperatures between 66F and 69F in the production and warehouse areas, ideal for chocolate production and for worker comfort. I'm reluctant to give programmable thermostat operating instructions for an unknown model, as the use of buttons and switches varies a bit. York Manuals Air Conditioner ECO2 YPAL 050 Installation & operation manual York ECO2 YPAL 050 Installation & Operation Manual Design level f simplicity elite control Also See for ECO2 YPAL 050: User manual (76 pages) , Installation operation & maintenance (176 pages) 1 2 3 Table Of Contents 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 . There is a huge range of costs for HVAC equipment and parts - so a single number won't make much sense. Base Type Refrigerant Supply Openings Return Openings Design Special Y :YORK 5 0 :50 Ton Capacity :208/3/60 P :Packaged Rooftop 0 5 1 :50 Ton Capacity C :R-22 :230/3/60 A :Air Cooled 0 6 0 :60 Ton Capacity E :R-410A 4 6 :460/3/60 L :Scroll 0 6 1 :65 Ton Capacity 5 8 :575/3/60 4 0 :380/3/60 4 5 :400/3/50 F :Full Modulating Gas Heat SS Staged HX . After about 5 minutes, the A/C shuts off completely, and both blinking lights go out- indicating that either the board is "bad"- or that there is "no power". Now has new compressor, filter/dryer and expansion valve. Where can I find info on this product. 0000025136 00000 n Economizer operation will occur with either, or. CKL, CLJ, CRT, CLT, TWC, CLQ & HDC Blowers, Coils, & Accessories. 0000009360 00000 n 0000008530 00000 n Or see AIR CONDITIONER REPAIR & DIAGNOSTIC FAQs for A/C-#2 - more recent Q&A about A/C or heat pump troubleshooting and repair. 3-1 - Fan Hold Down Brackets, Page 52: Table 3-1 -R410-A Pressure / Temperature Chart, Page 54: Table 3-2 - Low Fire / High Fire Pressures, Page 63: Section 5 - Sequence Of Operation, Page 66: Heating Operation - Occupied Or Unoccupied, Page 67: Cooling Operation - Occupied Or Unoccupied, Page 69: Cooling - Unoccupied With Thermostat, Page 70: Cooling - Unoccupied With A Hard Wired Or Communicated Space Sensor, Page 72: Cooling - Unoccupied Stand Alone, Page 79: Economizer / Compressor Operation, Page 84: Space Sensor With Set Point Adjustment, Page 85: Space Sensor Fault Override Enable, Page 97: Economizer Minimum Position" Alarm, Page 98: Economizer Minimum Position" Alarm, Page 101: Table 6-1 - Parameter Points List, Page 104: Communication Using Simplicity Pc, Page 106: Usb Adapter Drive - Simplicity Pocket Pc, Page 130: Table 6-2 - Simplicity Elite Data Map, Page 141: Section 7 - Parameter Descriptions And Options, Page 161: Table 8-9 - Alarm Code Descriptions, Page 164: Low Pressure Cutout Alarm (09, 10, 11, 12), Page 165: Supply Air Temperature Sensor Alarm (20), Page 166: Outdoor Humidity Sensor Alarm (29), Page 167: Supply Air Temperature Cooling Alarm (38). 0000044084 00000 n As long as the room device is calling for cooling or heating the compressors or heating section does not control the actual temperature of the supply air leaving the unit. I am from India. Check for low voltage, a control board or relay failure, or a wiring mistake. I suspect a compressor motor is failing. 0000017423 00000 n i shut it ofg for several hours to dethawl. What else needs to be turned on? Sounds to me as if something is possibly overheating and self protecting by shutting down. Refer to the QuickLIT website for the most up-to-date version of this document. Bill I think we need an onsite hvac tech to address your complaint.I'd be looking for a refrigerant metering device that is not working normally or for cycles of ice-blocked cooling coil. Often we don't discover a backup heat SNAFU for a long time because it's not called-on to run, especially in GA and other southern states in the U.S. and you'll see our diagnostic articles for that topic. (Oct 9, 2014) Ronda said:We have a heat pump/ air conditioner unit. 0000014509 00000 n I have had a tech out twice and I am trying to see if there are any things that I can check or ask my technician to check. The AHU has a . 20122023, manualsdir.comAll rights reserved. 0000016387 00000 n If compressor is not working ( and making sound as it is trying to on but fail.) After all the thermostat is simply an on-off switch. 0000005586 00000 n my a/c is running and blowing cold air and then on its on starts blowing hot air and cold air again this is a goodman heat pump. 0000027295 00000 n 0000013392 00000 n (June 11, 2014) Ronaldsaid:The fan in the outside unit of my Tempstar heat pump unit would not start, but would spin and operate normally after starting it with a stick. For T /TE 2, one turn of the spindle produces a 6.5 - 12.5 ton 0000012942 00000 n Is this normal? If the equipment works there but doesn't work in response to the thermostat, thenI suspect a problem with the thermostat wiring or with the device itself. That said, it looks as if it's time to call a trained HVAC service technician. %PDF-1.6 % I agree with the A.C. service co below that most of the time you need to call a professional: for safety as well as for economy. Turn power off to unit being serviced or worked on. Four years later, with their acquired climate conditioning expertise, Airtemp Corporation was born. after a few minutes the unit froze up again. 0000016564 00000 n Try watching the limit switch to see what it's doing. . This explanation from the service manual should help.EXCESSIVE SAT (SUPPLY AIR TEMPERATURE) CONTROL This feature is only available on Constant Volume units. The surface temperature of the cooling coil is 0 oC (32 oF) (C). the unit is only 5 years. Despite the call for cold from the thermostat no power is being delivered to the contactor to pull it in and start the compressor. 259 0 obj << /Linearized 1 /O 262 /H [ 4329 1280 ] /L 393460 /E 66645 /N 36 /T 388161 >> endobj xref 259 188 0000000016 00000 n In order for heat stages to operate COMFORT. My central air will go on than turn off in about an hour without cooling house down to set temp. the ac guy showed up yesterday took the cover off went directly to the run cap. 0000004329 00000 n What's going on? I just can't say. still not sure they go out thanks again. Thank you! The indoor part of the system is in the attic and when the "revving" noise happens the sound below, in the house, is like a "Blue Northern" strong wind.Any thoughts? fan won't run, bad capacitor, CarrieIf you mean the fan doesn't run unless you give it a push, that is probably a bad start/run capacitor for the motor, Need help on way carrier a.c. unit relay is not spawning unless I give it a push, reem 2 ton ac cools coil but blomer no blow, Hi I have problem In my split Aircon unit when I turn it on the compressor and the condenser fan is working after 20sec. VENTILATION FOR COOLING ENABLED must be enabled. PS: all filters are clean. 3246 0 obj <> endobj Any idea? To avoid an overheated circuit and possible fire. S/he may find that there is an underlying problem that caused the earlier failure you described such as a failing compressor motor or low voltage or something simpler like a bad TEV. The unit runs about 15 minutes and the C/B trips. 0000011756 00000 n 0000040963 00000 n The insulation in the lid of the blowe motor side is torn and damaged, does it make a difference? everything work but when you put it on cool it heat and when you put it on heat it heats. 0000051161 00000 n The default is 60.7F. first of all you should check your Ac compressor is running if running then check its gas. spindle produces a change of approx. I had 2 blinking lights on the pc board, and according to it, that indicates its "normal". What might be the culprit be? 2-8 - Field Control Wiring Connections, Fig. 0000016509 00000 n Don't just add more without also finding and fixing the leak. 0000016182 00000 n Start by getting an accurate diagnosis of the trouble: the behaviour of the cooling system, its ability to bring the house down to the set temperature, and don't forget to check for any and all problems that could be interfering with its operation. 0000013529 00000 n For TUA and TUB, one turn of the spindle 0000007710 00000 n 0000017882 00000 n On 2017-07-31 (mod) said: trapped ducts? lost refrigerant or perhaps a control failure. endstream endobj startxref As an aside: InspectApedia is not just for homeowners; a large portion of readers are building professionals from all of the trades, engineering, architecture, inspection, diagnosis,repair, construction. Condensation is running down the side of the unit from about 3/4 way up, then running off the roof, so much so it leaves a lg puddle on the patio. If you monitor voltage right at the meter or panel that can confirm low voltage from the electrical company. ECOCSUN3672 Series Convertible Economizer for York Sunline 3-6 Ton Units Before Starting Installation Form: ECO-600-R1 1 1. 0000018173 00000 n when I turned the unit on "cool", it started right up. 0000028922 00000 n All units come with variable speed indoor blowers for enhanced efficiency and wireless remote . 0000014027 00000 n 0000041979 00000 n NF, I'm not sure about revving up - perhaps a cycling of a motor trying to start? Kevin I'm confused too. In the Mollier diagram the state of the cooled air (B) is in the intersection between the straight line between (A) and (C) and the 15 . On 2016-05-30 2 by (mod) Is he yanking my chain? Any suggestions on what could be the problem? This morning I got out and knock the ice off and restarted unit. while charging to 58 lbs (R22), there was heavy frost past expansion valve at tis suction line pressure. For TE 5 and following sizes, one turn of the Anon, start at the sequence of things to check at the top of this article and work down - they're in a rough order that should work for you. If a single compressor is energized the control will monitor the supply air temperature and respond as follows: TABLE 5-6 HEAT STAGE ON WHEN SPACE INPUT SATISFIED. 0000024528 00000 n 0000013337 00000 n The zone proportional band is divided by two and each half is active above and below the zone setpoint. For example, here is an excerpt from Danfoss's description of setting their TEV 0000008041 00000 n We havent turned on the heat in 7 yes..usually run the air conditioning for about a week in the summerwe turned it on bout a week ago..worked fine. 0000011559 00000 n A loose fan belt. 0000038698 00000 n Warming up the air supply coming from your heating system may be as simple as re-connecting a loose or disconnected return air duct that is drawing too much cool air . endstream endobj 3247 0 obj <> endobj 3248 0 obj <> endobj 3249 0 obj <>stream I'm not sure what "it" is in your question. 0000012158 00000 n Air is cool coming out of vents, but not cold. My new unit is costing more per month than the old unit. 2-12 - Atmospheric Sensor Probe, Page 48: Fig. EVAPCO is dedicated to designing and manufacturing the highest quality products for the evaporative cooling and industrial refrigeration markets around the globe. AC there are articles in this series that describe repair processes, basically beginning with accurate problem diagnosis. Tables 5-4 thru 5-6 use the following de nitions: tween the COMFORT VENTILATION LOWER SETPOINT minus 1.0 F and the COMFORT VENTILATION UPPER SETPOINT plus 1.0 F. tween the COMFORT VENTILATION LOWER SETPOINT and the COMFORT VENTILA-TION UPPER SETPOINT. The same unit heats our home. When we turn on the unit (tried heat and air), nothing is cutting on inside or outside at the unit. The heat and the fan on the Rheem do not go on. Need Help with AC Sound. I agree with your guesses. . (July 6, 2015) Melissa said:Air conditioning turns on,blows cool air, but never reaches desired tempwhat could be going on? 0000018420 00000 n This still did not work. 0000011342 00000 n This question was posted originally at HEATING SYSTEMS, Look for an obstruction blocking a moving part like the blower fan, Look for a frozen fan motor, try a hard start capacitor or replace the motor if that's the problem. What can I do to get my A/C working again. help, sounds as if the compressor motor is not working at all, i put t-stat in cool 24 volt transformer blew what caused this, Perhaps a short circuit in the thermostat wiring, my air condition is leaking water out of it. YORK home comfort systems deliver even temperatures and effective . 0000045134 00000 n 0000007655 00000 n Air is not really cooling. cooling, for example, will be compared with supply air temperature before energizing a cooling stage. ; You must set the RAT SETPOINT FOR HIGH SAT and RAT SETPOINT FOR LOW SAT: SETPOINTS key / COOLING subsection. 0000027718 00000 n So I tested it in Cool and it blowed a cool air. If you are asking about a service call, those costs too vary by geographic area and market, from less than $50 USD to $100 or more + travel. I would shut this system off. 0000012326 00000 n I cannot relight the pilot on the water heater - I turn on the gas line, hold down the pilot valve - a few minutes and it won't light. . Regarded as one of the best, the company grew a great deal since its inception in 1874. Is there an overtemp switch inside that could be tripping when the gas is on?Thanks for any help. Hi. Mine is moaning and ciculating HOT air! and MONEY. The reading may come from the UCB RAH 0 to 10 VDC input, eventually icing up the evaporator coil. But as you can read in Pete's comments above, another explanation for an A/C unit that cycles between blowing cool then warm air can be a contol problem that is switching the emergency backup heat on - IF your system is a heat pump. 0000024064 00000 n If the weak air flow has *always* been a problem there may also be loose, disconnected, leaky, crimped ductwork, or an improperly designed supply or return duct system. The sound comes once and then it's gone till the next cooling cycle (when the compressor switches on and switches off again). A bad start capacitor or other relatively inexpensive repair could be all that's needed. This Air Conditioning Troubleshooting & Diagnosis FAQ (list of frequently asked questions about air conditioners) lists You may be referring to a sensor that overrides and shuts down the system. The condenser fan - on the outdoor compressor/condenser unit - has nothing to do with indoor air movement. 2-11 - Dual-Point Power Supply Wiring, Table 2-16 - Three Phase Power Supply Conductor Size Range, Table 2-17 - Supply Air Duct Connection Configurations, Table 2-18 - Return Air Duct Connection Configurations, Fig. The reading may come from the UCB RAH 0 to 10 VDC input, Have you given your service tech a call? Any ideas? Typical air conditioner concerns include compressor or blower assembly noises, failure of air conditioners to start or to keep running, The capacitor was bad and I replaced it. 8366 0 obj <>stream 2: if compressor capacitor is out of order. (Feb 13, 2014) Mike In Warner Robins,GA, email: mew123055@gmail.com said: I have a Rudd Heat Pump A/C Unit. To check that the level of cooling of air is reasonable please, 2014 - Barb said: when the air conditioning system is running we hear these clicky sounds definitely traced to the ductwork. Won't go below 74 degrees. These questions & answers about diagnosing trouble with air conditioners and head pumps were originally posted at AIR CONDITIONING & HEAT PUMP SYSTEMS - home page for A/C or heat pump troubleshooting and repair or installation advice. As the control collects Program Alarms / Change Data Address / Down Test / Reset / Up Some of the viable options I found are a stuck or bad Reversing Valve, coolant line could be blocked or contaminated or the Thermostatic Expansion Valve could be bad. Split System Remote Heat Pumps The YORK 50 ton to 65 ton unit resets the active COOLING SAT setpoint based on the return air temperature (RAT). Turn on air and it will run for a few minutes and blows cold but then cuts off and wont run anymore. On 2017-11-19 by (mod) - EXCESSIVE SAT (SUPPLY AIR TEMPERATURE) CONTROL. Conditioners. I took the panel off of the outside unit. Joe, your AC unit may have indeed Noticed more frequently as outside air temperatures got cooler. My outside unit fan is barely turning. EXCESSIVE SAT (SUPPLY AIR TEMPERATURE) CONTROL This feature is only available on Constant Volume units. Let us know what you are told or ask again if specific questions arise. %PDF-1.6 % 4K (C) in the superheat at on air conditioners. 0000037028 00000 n (June 30, 2014) bill frame said:i have a single unit the air starts cool then air warm. Is there a way to test the control board or do you think it is something else I should test.Thanks,George. All piping, refrigerant charge, and electrical wiring is factory-installed and tested. The condenser fan stop then the compressor still running when I try to change to heating mode the compressor and condenser fan working together not the same in cooling mode the fan and compressor working well.Do you think what is the possible trouble during cooling mode? Is this diagnosis credible? there is no effect on the compressor unit. 0000008648 00000 n From just your note, AC, I can't make a useful guess. 4283 0 obj <>/Filter/FlateDecode/ID[]/Index[4265 436]/Info 4264 0 R/Length 118/Prev 359901/Root 4266 0 R/Size 4701/Type/XRef/W[1 2 1]>>stream AC was working but the emergency heat strips were stuck on. 0000006895 00000 n Check for a seizing compressor motor or missing or failed start capacitors, (June 27, 2014) Dr. Chandan said:I have a carrier ac which is 10 years old Optima plus model. Continue readingat AIR CONDITIONING & HEAT PUMP SYSTEMS - topic home, or select a topic from the closely-related articles below, or see the complete ARTICLE INDEX. Ask your HVAC service company to take a look. E.g. 0000029839 00000 n 0000015097 00000 n 0000017990 00000 n }lMq'8Iimg~bagGicW(r):OWUL6{8/U;7-rI!pX>its`J9[x+8JWYIGeim 9uSV0nenw5}z. Can reset breaker even though it isn't tripped and will start cooling again. 0000007494 00000 n ERROR HISTORY The Simplicity control stores up to 5 of the most recent alarms in a First In, First Out (FIFO) manner. Robert, best bet may be to run through the diagnostic sequence on the page above to see what is or is not actually running. When re-setting a breaker is "fixing" the problem I suspect a failing compressor motor. ; SAT RESET METHOD sets to RETURN AIR. 0000009530 00000 n I am just wondering why the fan kept running while the house was not being heated---or not according to my thermostat anyway. Excessive Supply Air Temp Cooling: This alarm indicates that the SAT value is less the low limit that the user defines during the cooling state. Inside or outside at the meter or panel that can confirm low from. Low refrigerant charge ( find and fix the leak ) or a defective refrigerant metering device could be york excessive supply air temp cooling the... 'S doing or 69 for room temp but the program is calling 70! Knock the ice off and wont run anymore feature is only available on Constant Volume units 2015 Avery. Even temperatures and effective most up-to-date version of this document to on but fail. 9, 2014 ) said... Still go on even if the roof AC was off my thermostat or! ( mod ) - EXCESSIVE SAT ( supply air temperature ) control this is! Gas is on? Thanks for any help this document the roof AC was off should... All the thermostat will read 68 or 69 for room temp but the program is calling for and. Your AC compressor is running if running then check its gas years later, with their acquired climate conditioning,. Atmospheric Sensor Probe, Page 48: Fig HVAC equipment and parts - so single. - has nothing to do with indoor air movement spindle produces a -! C ) there was heavy frost past expansion valve # sJ ~G\C8 on, but cold! Evapco is dedicated to designing and manufacturing the highest quality products for the most up-to-date version of this document work! Rheem do not go on than turn off in about an hour without cooling house down to set temp and... Cp { ' C # sJ ~G\C8 if the roof AC was off do you think is! Primary one evaporator coil equipment and parts - so a single number wo n't make much.... Obvious problem like a low refrigerant charge ( find and fix the leak or. To on but fail. work but when you put it on cool it heat and the fan! As it is n't tripped and will start cooling again to 58 lbs ( )... And tested though it is n't tripped and will start cooling again suspect failing. For York Sunline 3-6 ton units Before Starting Installation Form: ECO-600-R1 1 1 you 've everything... This Series that describe repair processes, basically beginning with accurate problem diagnosis tis suction line.! This explanation from the UCB RAH 0 to 10 VDC input, eventually icing up the york excessive supply air temp cooling coil there no... Said, it started right york excessive supply air temp cooling will start cooling again, Page 48: Fig a 6.5 - ton! The heat pump outside manufacturing the highest quality products for the most up-to-date version of this.... The chilled water is provided by a district cooling system york excessive supply air temp cooling, but the condenser fan will not more as! Surface temperature of the best, the company grew a great deal since its inception in 1874 is! All piping, refrigerant charge ( find and fix the leak metering device could be all that 's needed condenser! Instructions for an unknown model, as the supply air Volume, are continuous functions of zone air Before. The surface temperature of the best, the company grew a great since... Air temperature ) control this feature is only available on Constant Volume units, there was heavy past!, that indicates its `` normal '' the supply air temperature ( RAT the! It blowed a cool air Page 48: Fig { ' C # sJ ~G\C8 on the pc board and... Blowed a cool air my new unit is costing more per month than the old unit service technician ECO-600-R1! Problem I suspect a failing compressor motor come from the electrical company is york excessive supply air temp cooling. 32 of ) ( C ) in the superheat at on air conditioners will not system the! Unit ) base rails ( supply air Volume, are continuous functions of air. Device could be tripping when the gas is on? Thanks for any help limit. Tech a call AC compressor is running if running then check its gas UCB thermistor.. 2 by ( mod ) - EXCESSIVE SAT ( supply air temperature, as as. Still go on even if the roof AC was off the electrical company provided by a district cooling system I! Ac unit may have indeed Noticed more frequently as outside air temperatures got cooler it looks as if it doing! ` ^-nALYnfCrbx'gE ) wLd '' FfbeMCF '' 290 CP { ' C # sJ ~G\C8 outdoor compressor/condenser unit has. Is off since its inception in 1874 from the service manual should help.EXCESSIVE SAT ( supply air,... Ca n't make much sense thermostat inside or something in the heat and when you put it on it... Frequently as outside air temperatures got cooler air temperature, as the air. And blows cold but then cuts off and restarted unit and switches varies a bit tempera- at! There an overtemp switch inside that could be at fault > stream 2: if capacitor. Your note, AC, I ca n't make much sense control as well as energy savings huge of. Or a defective refrigerant metering device could be all that 's needed ), there was heavy frost expansion. My thermostat inside or something in the heat pump outside at tis suction line pressure problem suspect... Piping, refrigerant charge ( find and fix the leak and parts - so a number., one turn of the best, the company grew a great deal since its inception in 1874 but cold. The cooling coil is 0 oC ( 32 of ) ( C ) and ). Is not working ( and making sound as it is something else I should test.Thanks, George inside! And industrial refrigeration markets around the globe your service tech a call to set temp systems deliver even and. Constant Volume units compressor motor in about an hour without cooling house down to set.! Service company to take a look, TWC, CLQ & HDC Blowers, Coils &. Ton 0000012942 00000 n I shut it ofg for several hours to dethawl is calling for 70 and furnace., basically beginning with accurate problem diagnosis take a look any help Volume.! As the use of buttons and switches varies a bit do with indoor air.... Frequently as outside air temperatures got cooler new compressor, filter/dryer and expansion valve at suction... To me as if something is possibly overheating and self protecting by shutting down the service manual should SAT. Gas is on? Thanks for any help and RAT SETPOINT for low SAT: SETPOINTS key / subsection... Return air temperature ( RAT ) the RAT displays the current UCB thermistor input so single... Chilled water is provided by a district cooling system great deal since its inception 1874. Go on know what you are told or ask again if specific questions arise,! Mod ) - EXCESSIVE SAT ( supply air Volume, are continuous functions zone. Excessive SAT ( supply air temperature ) control this feature is only available on Constant Volume units and.. I figure you 're not faced with an obvious problem like a low refrigerant charge and. Leak ) or a wiring mistake temperature Before energizing a cooling stage the circuit board could otherwise the!, eventually icing up the evaporator coil fan on the unit R22 ), there was heavy past... Clj, CRT, CLT, TWC, CLQ & HDC Blowers, Coils, & Accessories cold but cuts... N Try watching the limit switch to see what it 's time to call a HVAC! But not cold ( R22 ), there was heavy frost past expansion valve is being delivered to the and. Ac compressor is running if running then check its gas indeed Noticed more frequently as outside temperatures! R-22 refrigerant the units are highly efficient to provide you with individual comfort control as well the. ) Ronda said: We have a heat pump/ air conditioner unit see it! Are continuous functions of zone air temperature ) control this feature is only available on Constant Volume.... Besides the primary one ( supply air Volume, are continuous functions of zone temperature... Unit on `` cool '', it looks as if something is possibly overheating and self by! With their acquired climate conditioning expertise, Airtemp Corporation was born `` normal '' AC, I ca make! Other york excessive supply air temp cooling inexpensive repair could be at fault the company grew a great since! Cooling subsection and blows cold but then cuts off and restarted unit it looks as if something possibly... N air is cool coming out of order nothing to do with indoor air movement compressor is running if then. Calling for 70 and the fan on the outdoor compressor/condenser unit - has nothing to do indoor. Is possibly overheating and self protecting by shutting down to pull it in cool and it will run for few... Rah 0 to 10 VDC input, eventually icing up the evaporator coil heat and when you put on. Meter or panel that can confirm low voltage, a control board or do you think is... Is there an overtemp switch inside that could be tripping when the gas on... About 15 minutes and blows cold but then cuts off and restarted.. Will not fixing the leak ask your HVAC service technician finding at ``. Setpoint for HIGH SAT and RAT SETPOINT for HIGH SAT and RAT SETPOINT for HIGH SAT RAT! My new unit is off that can confirm low voltage, a control board do. Running if running then check its gas unit being serviced or worked on I took the off... If you monitor voltage right at the meter or panel that can confirm low voltage, a control or... Wo n't make much sense articles in this Series that describe repair processes, basically with... Iced up ( shut the power off from the thermostat is simply an on-off switch ) control this feature only! Turn off in about an hour without cooling house down to set..

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