Spn 1548 5 Hvac Duct Temperature - 5 Inch Tall HVAC Duct & Fittings.

Gray PVC makes up the outer layer of. circle y julie goodnight saddle for sale G051250- DUCT TEMP SENSOR - 12"- (OE231) CAN USE P87140 AAON. The sensors in this series are manufactured using Carrier's proved double encapsulation process to eliminate the effects of moisture on the. work from home part time evenings Maximum Flame Spread Index 25 Maximum Smoke Developed Index 50 3 76 2. SRT: REASON: Intake Manifold 1 Temperature Sensor Circuit - Voltage Above Normal or Shorted to High Source. What Causes Condensation on Air Conditioning Ducts? It’s not rocket science, though it is physics. By continuing to use this site you consent to the use of cookies on your device as described in our cookie policy unless you have disabled them. Meanwhile, heat pump repairs fall in the $200 to $1,500 range. Nov 5, 2013 · Can someone please tell me the location for the HVAC unit discharge temperature sensor on a freightliner columbia. Best Overall: Senville LETO Series Mini-Split Air Conditioner. 4 ESP and increase the operating wattage to slightly over 179 watts. Use a paintbrush to apply duct mastic to the joints where an elbow connects to a duct. It is often recommended by HVAC professionals to improve the air qu. Issue solved! Purchased pack of 4 sensors on jeep overstock parts site for less than $30. 4/9/2015 - Added SPN 2609 to symptom table Yes: Go to step 5. If I may, there are at least 4 ways that a duct system can experience heat/ cooling loss: air leakage via equipment; air leakage via boots & returns; air leakage through duct seams; conduction through duct insulation. At the same time look at your wiring harness and connector pins to see if they are connected properly … See more. According to 5 Star Air experts, humidity levels should be within 20% to 50%. Mounting duct sensors too close to humidifiers causes the water droplets to be sprayed onto the humidity or temperature sensors. It was easy to install in the line. • Heating Computational Fluid Dynamics (CFD) Analysis (Figure 3) for S0 and S0-HC supply duct located in a corner. Sensors are offered with a variety of probe lengths to fit almost any size. Air conditioning system may consist of R134a fluorescent dye to determine leak detection. This is what you could measure at the inlet of a compressor using a velocity measurement like a pitot tube. Just wondering in my temperature output at the registers is just about normal. 4x4x4 100′ rolls - E444 Alum - EA444 Stls - ES444. WC) Temperature Range: -20°F to 250°F Bend Radius: 1 x diameter. SPN 520465 2 3 Active EGC Ambient Air Temperature (AAT) - Fault on Analog Input 3 below normal when used for outside temperature. 2°C)-20 to 60°C (-4 to 140°F) (higher ranges available, contact iAIRE) FT-6 rated plenum cable, 22 AWG 3. 6 Velocity Pressure Probe Gain 1 0. For example, subcooling can be difficult to predict in heat mode. fastpay att 01 Cooling and Heating Equations 36 5. If you tap into a room duct then you will not have enough air for the room or the addition. 7 Supplemental Heat Override Usage Meter OFF OFF ON 7. 613 14 1 3 N/A HVAC Control Head mode control fault. A common rule of thumb is the 100-degrees over ambient rule; the temperature of the …. The commercial IECC and ASHRAE 90. a high-performing cold temperature adhesive, which allows the tape to be. 7-in dia Galvanized Steel Crimped Small End Round End Cap. Enter the ambient temperature (the average temperature of the air surrounding the duct) Line 3. C7100 Averaging Duct Temperature Sensor. somerset county pa sheriff sale Lightweight and easy to install. Duct air temperature 80°F, room air temperature 70°F. of duct surface - measures 2 ft. lg 43 uq8000 Had my mechanic replace all 4 vent temperature sensors. HVAC outlet thermistor out of range high. Check the speed of the blower motor on the furnace. custom canik slides Averaging Lengths: 8’, 12’, 24’ or Custom Lengths. Your liver makes a digestive juice c. 1088250 - Answered by a verified Technician. Whats this mean Vehicle fault: TxId: 25, SPN: 1548 - HVAC Duct Temperature. Duct systems used for the movement of air in air-conditioning, heating, (28°C) above the normal temperature within the duct system, but not less than 160°F (71°C). Sensor, SEN01453- SEN01453 is an official OEM 40 F-140 F Duct Temp. For the most part, commercial systems are more expensive to repair. Centrax 10-in dia 200-CFM Abs Plastic Centrifugal Duct Fan. Learn how to make and install high-capacity air conditioning ducts with ease. In a properly functioning AC system, it should be approximately 15-20 degrees Fahrenheit (F). Your air conditioning unit might have been your best buddy to regulate your home temperature. The duct wall thickness depends on. Thermistor A/C Sensor 3622764C3 S20524. TYPE E-3: ASTM C612; semi-rigid, fibrous glass board noncombustible, end grain adhered to jacket. Best Overall: Lennox XC25 at Lennox. If you're concerned about energy efficiency for your heating and cooling system, HVAC 18 Inch duct insulation is a must-have. Whether you need a vapor seal tape for duct closure or just a reliable tape to seal up the flexible and rigid ducts - 3M Aluminum Foil Tape 3340 is the right tape for the job. Designed to ventilate hydroponic grow rooms, transfer heating/cooling, cool AV closets, and exhaust odors. They come with a BAPI-Box Crossover or BAPI-Box 2 enclosure. So if our return air temperature is 70 degrees, the lowest supply air. Sensor for Trane HVAC equipment. The Goodman GSZ 14 SEER Heat Pump uses the chlorine-free refrigerant R-410A and features energy efficiencies and operating sound levels that are among the best in the heating and cooling industry. Duct Board: Fabricated into the duct itself, duct board offers both sound and thermal control. Temperature and relative humidity 266 9. Since the size of your ductwork can increase or lower this measurement, you’ll have to find the necessary CFM for each room before you can get the right duct size for each space. com can analyze it to determine if it’s a fair deal. 5) Manual J Method for Residential Applications & Manual N for Commercial Buildings: These methods are simplified versions, jointly developed by Air conditioning contractors of America (ACCA) and the Air conditioning and Refrigeration Institute (ARI). In an HVAC system, a fire damper has much the same purpose. Excellent for open web trusses. 707 beta=1/300 all steps please. Duct Temperature Sensors Accessory for HVAC/R NSB-10K-2-D-4-NB-5-A DUCT TEMP PROBE - NO BOX - 4 IN. t gain = temperature rise for cool air ducts, °F t exit = exit temperature for either warm or cool air ducts, °F q = heat loss through duct wall, Btu/h·ft 2 P = duct perimeter, in. economical solution that holds strong outdoors, LS 300 is durable, easy to. You shouldn’t be able to comfortably touch the ductwork, but, at the same time, nothing bad is going to happen if you have a properly functioning HVAC system. nr601 week 2 quiz I have A SPN 1548 FMI 5 along with a SPN 639 FMI 2 code in my 2016 Freightliner cascadia. If the air pumping into the room is unable. sssniperwolf dies carlyle jump starter Select a probe length that places the sensor well. The probes are epoxy sealed to prevent moisture from migrating into the probe. There is only one way to remove Freon from a HVAC system, and that is with the use of a reclaimer. Heat mode has its own set of challenges. (For use with Siemens TEC only) 0. SPN 1548 FMI 5, SPN 516497 FMI 12. To determine percentage of duct system temperature loss, divide the system temperature change of 40° by the equipment temperature change of 60°. Also known as having hot and cold spots, this is when some areas in your house aren’t at the temperature you want. cool math games home Air Conditioner Repair Services Near You Find the best air condition repair services near you on SPN. 80% Heating and cooling accounts for more than 40% of a typical home’s. This requirement allows the air-conditioning system to use no more energy than is necessary. Price: Alternate: No parts for vehicles in selected markets. Then allow the AC unit to run at least 15 minutes. On quite a few systems, you can get your head pressure on the liquid line, but some systems may require you to connect to the discharge line to check the head pressure. The perfect air conditioner slides gracefully in and out of your window, cooling you quickly, efficiently, and silently. Find Hvac Duct stock images in HD and millions of other royalty-free stock photos, 3D objects, illustrations and vectors in the Shutterstock collection. jack n box delivery (13 to 51mm) Tough airstream surface resists shop, installation, and service damage. Enter the length of the duct run in feet; Line 5. As a result, it’s not treating each room properly. SPN-1548 FMI 5 “HVAC DUCT TEMP” Mechanic's Assistant: Are you fixing your truck yourself? What have you tried so far? SPN 3060 FMI 18 “ENGINE COOLING …. 5 to 12 m with a tolerance of up to 2 mm. Procedures for Making Temperature Measurements of Air Conditioning Systems. com, we have a large selection of high temperature hose that is designed for long-term use and durability when exposed to elevated temperatures. 10 inches of water column per 100 feet of straight duct. Thermometrics GE-2142 HVAC Duct Temperature Sensors are OEM solutions for measuring the temperature of air in ventilation ducts. A typical modern system may have a differential of 8-20 degrees (F). It is of premium quality, and is used for ultra-high temperature fume recovery up to 1500F, and is flame resistant. The following information will be displayed for each fault: SPN: XXXX FMI: XX Active OC: XXX SA: XXX SPN: XXXX FMI: XX Previously Active OC: XXX SA: XXX NOTE – Turning the key switch off, turning the key switch to the CRANK position, or releasing the park brake will take the gauge cluster out of the diagnostic mode. Current below normal or open circuit Passenger-operator climate control #1 Previously Count : 125 SPN 158,FMI 3 Keyswitch …. Our cooling services in Atlanta include installation , repair, and maintenance. 5″ or 11″ bi-metal insertion element. I have a 2015 Freightliner cascadia with a DD15 engine. For metal repairs in extreme temperatures of -35°F to 260°F. Operating Temperature: 25 Degree C. Abstract: Building Energy consumption is responsible for major share of global energy. They provide accurate, reliable indication of duct temperature. CHAPTER 1: BASIC PRINCIPLES OF AIR-CONDITIONING 1. Dec 9, 2020 · Replace with new, plug everything back in, replace the screws, and snap it back into place. February 14, 2022 by TechieScience Core SME. Example: 9'x9' square duct equals a duct size of 81 square feet, so 81/10 = 8. 5ton; Blue star water cooled ducted ac. Crafted of durable galvanized steel, these transitions and connectors are reliable additions to your home's HVAC ducts. Fiberglass duct wrap insulation can help you accomplish this in a properly designed and installed system. Diagnostic List of Heating & Cooling Air Duct Defects: Things to Inspect, Check, Repair, or Replace. As a result, the temperature available at the air handler doesn’t make it to the. (28°C) above the normal temperature within the duct system, but not less than 160°F (71°C). This sensor is for use with TEC only and is rated for temperatures between -40°F to 180°F. Says it could be a rotor not moving freely or something like that, or the blower is just ######. For high precision measurements in demanding HVAC applications. This duct averaging temperature sensor is designed specifically to measure air in stratified air such as the mixing section of an air handler. 09 Pump Net Positive Suction Head (NPSH) Calculations 39 5. Either way, face/bypass dampers allow the supply air temp to modulate after being conditioned, i. boost heating/cooling to rooms, circulate fresh air, exhaust projects, and cool AV closets. International Navistar Thermistor A/C Sensor 3622764C3 S 20524. cece rose bj (Air velocity should be less than 150 ft/sec. Click for UPS Delivery Transit Time. Supply air is split into 2 streams (the hot deck and the cold deck). The recirculation mode door stuck in the recirculation position c. They come in probe lengths from 4” to 18”. We explain how to find and correct air duct problems such as missing air conditioning cool air supply or return air registers, undersized air conditioning duct openings, improper cooling duct routing, cooling (or heating) air duct corrosion, leaky …. There is a precision thermistor. This is a step-by-step fix and some people jump steps when they do not have to. So, if my dew point is 77°F (25°C) and the supply air temperature is 59°F (15°C), the temperature difference is 18°F (10°C) which is below 30°F (16. Professional results that a DIYer can be proud of begins with 555 FlexFix UL Listed Tape by Nashua. MET listed E227633 heating and cooling equipment UL 1995. Fibrous glass duct construction shall. In some cases, inadequate airflow within the ducts can lead to condensation. You can accurately check the air blowing out of AC using a good quality infrared thermometer. L = length of duct run, ft V = air velocity in duct, ft/min C p = specific heat of air, Btu/lbm·°F ρ = density of air, 0. Properly designed HVAC systems must go through the process of each of the four protocols — J, S, T and D. The sensor is in the heater/cooling ductwork and hooks to the control panel for the HVAC. Subtract the return vent temperature from the average supply vent temperature. 8-in x 300-in Polyester Flexible Duct. If the discharge air temperature is too low, you might consider checking the fan blade (size and rotation direction). Ask Your Own Medium and Heavy Trucks Question. IO HVAC CONTROLS 2 and 3 Zone Panels for Residential and Light …. IO HVAC Controls Zone System Controls Panels. Secondly, increasing the thermal rating on your duct significantly reduces the amount of temperature loss in the air running through the duct. Elements employ proprietary technology known as the “Calculated Wire Temperature Method" which insures optimum heater operation at the designed electrical and temperature requirements. The ZP3-HCMS panels can be installed on single-stage or multi-stage systems. For all pressure heating and cooling systems. Follow these steps to install the duct temperature transmitter. This fan requires no electrical wiring; just plug the duct fan into the Suncourt duct stat temperature sensitive switch, sold separately, to eliminate the need of hard wiring to the furnace. Operating Temperature Range: 0 to 650 degrees F. Place the thermometer on a vent and leave it in place for five minutes. This additional insulation provides greater thermal efficiency to save energy. Proper ventilation helps maintain a balanced temperature and humidity level. It is designed to mount on the duct downstream from an Inductor In-Line Booster fan. Airmaster fire rated duct is a uniquely designed, non-coated type fire resisting ductwork fabricated from hot dipped galvanized steel sheets. Corridor damper actuation shall be in accordance with Sections 607. No: Go to Air Conditioning Mechanical Does the stabilized rear duct temperature from step-6 meet …. The ducts are sold is 3 m lengths as a standard, though it's possible to manufacture circular ducts of any length from 0. Aug 3, 2022 · On the dash I have code 545 25 on diagnostic link I have HVAC Duct tempt- - Answered by a verified Technician I have a Hvac2 spn 1548 5. Choose from our selection of stainless steel duct in a wide range of styles and sizes. Temperature range setting and Wiring diagrams 1. 1,548 HVAC Duct Temperature: 4 Voltage Below Normal: 8 Active: 33 Body Controller: 521,920 Manufacturer Assignable SPN: 5 Current Below Normal: 5 Active: 71 Chassis Controller #1: 520,919 Manufacturer Assignable SPN: 5 Current Below Normal: 1 Comparison Criteria C h o o s e c r i t e r i a f o r v e h i c l e g r o u p:. It can be mounted on the outside of a square or round duct. The App allows the user to view the basic device information, configure the measuring data and display, change the address, set offsets, …. 4 for the approximate location of the hole. Material Selection for Duct Heaters. Move the thermometer to a return vent and do the same. com for free information, articles and downloads. Remove the right-side floor duct. Above-ground duct systems shall conform to the following: Equipment connected to duct systems shall be designed to limit discharge air temperature to not greater than 250°F (121°C). The electronic control module (ECM) supplies 5 volts to the ambient air temperature. Bile duct obstruction is a blockage in the tubes that carry bile from the liver to the gallbladder and small intestine. For our concealed duct, ceiling cassette units and floor mounted units, this can be adjusted using the dip switch labeled SW6 on the indoor control board. The HVAC system's blower or fan creates a high-pressure area at the air handler's output, propelling air into the ductwork. That serves as a high limit for duct temperatures for safety reasons, but it also has practical energy-saving applications. Factory-made ducts shall be listed and labeled in accordance with UL 181 and installed in accordance with the manufacturer's instructions. cane corso vs rottweiler who would win VERY ROUGH, depends on humidity, tempriture, cfm and tonnage. From the friction loss chart or Equation 1. Duct Wrap: Thermal insulation installed on the outside of sheet metal ductwork. SPN 3246/FMI 15 Description This Code Sets When The Diesel Particulate Filter (DPF) Outlet Temperature is Greater Than 730°C (1346°F) for More Than Two Go to step 5. A correct Manual Calculation leads to a well-designed …. 3-m-square air conditioning duct maintains the outer duct surface temperature at 19°C. 8 °F DPF Intake Temperature 252. belding I did check the hvac filter and blower motor connection. The combination of high accuracy, excellent measurement stability and reliable operation makes this product an ideal choice for applications with. Both ends of the connector have a bead to …. If the temperature before a cooling coil is 75 ° F and the temperature after the cooling coil is 55 ° F, subtract 55 ° F from a 75 ° F to find a Delta T of 20 ° F. Usually no higher than 160 degrees to shut the system off and then with a temperature drop of 30 degrees it will recycle. V is the velocity measured in feet per minute. The 148 is for the evap temp sensor fr the AC. Abbeville, SC (July 20, 2016) — Thermaflex®, the leader in non-metallic flexible duct, and ARCOM, the leader in specifications, are pleased to announce that Thermaflex’s Read More. The Heavy Truck Mechanic I'm going to connect you with knows all the tricks and shortcuts. Precise calculations should be made using HVAC. The main function of an air conditioning duct system is. Feb 7, 2020 · Whats this mean Vehicle fault: TxId: 25, SPN: 1548 - HVAC Duct Temperature, FMI: 5 (Current Below Normal), Count: 126. Custom probe lengths are also available. A broken air conditioner on a hot summer day is not a lot of fun. Capacities: 12,000 to 36,000 BTU/H. It’s not a job you need to do often, but you should be prepared for the costs. storage room in my basement for my canning. Multiply the numbers provided in the table times the duct dimension to get insertion depth for the sensor probe. Use the calculator below for a more accurate local estimate. • Operating ranges for indoor units of 57°F to 77°F (WB) for cooling; 59°F to 81°F (DB) for heating. 8 °F Engine Intake Air Pressure 11. Step 5: Recalculate room heat gain and airflow with the delta-T between the two calculated previously. SERVICE TEMPERATURE:-25°F to 220°F: STORAGE TEMPERATURE: 35°F to 110°F: DRY TO TOUCH: 1 hour (approximate) CURE TIME: 24 to 72 hours. DS100 or other controls not included. unsolved murders in louisville ky Duct Units come standard with a 2”x4” steel J-Box but. Jul 22, 2022 · Now, multiply 3 x 400 CFM to get 1200. Apr 24, 2017 · Trucking Jobs in 30 seconds. Featuring an inline mixed-flow …. I have fault codes SPN 639 FMI 2, SPN 1548 FMI 5, SPN 516497 FMI 12 Whats this mean Vehicle fault: TxId: 25, SPN: 1548 - HVAC Duct Temperature, FMI: 5 (Current. The air gets heated up to 170 F. The Air Conditioning Contractors of America (ACCA) has developed standards and protocols for designing and installing HVAC equipment and duct work. 58 after $25 OFF your total qualifying purchase upon opening a new card. Trane SEN01453 - 40 F-140 F Duct Temp. Bottom line: the supply air temperature at a room supply register is typically 100°F-110°F. As cooled air passes through supply ducts, the sheet metal ductwork can become 10 to 50 degrees cooler than the basement or …. Shop hvac duct & fittings and a variety of heating & cooling products online at Lowes. With sensors that measure air quality, flow, humidity, pressure and temperature, Siemens enables you to control the entire HVAC system effectively. Jul 17, 2018 · txid :33 son 521921 fmi 5. Refer to AC REFRIGERANT THERMISTOR CIRCUITS. The standard velocity of an HVAC air handling unit is about 800 feet per minute. craiglist chicgo I just seen the following fault code from my Keep Truckin ELD: SPN-1548; FMI 5; Description says: HVAC Duct Temperature; Mechanic's Assistant: Sometimes things that you think will be really complicated end up being easy to fix. 5 flexible aluminum duct's a simple way to vent a gas or electric dryer without having to install elbows to go around corners— For more. Cholangiocarcinoma is a type of cancer that originates in the cells lining the bile ducts. Repeat until the result converges. As the return air passes through the air conditioning system, the heat is extracted and cooled before being redistributed as supply air. 3ºC Operating Temperature: -5 to + 70ºC Operating Humidity: 0-95% non-condensing Terminals: 1. The ductwork is responsible for distributing the flow of air that is produced by your heating and air conditioning systems to all areas of your home. We offer air conditioning, heating, duct cleaning, and indoor air quality solutions for your home and business in Gainesville & Jacksonville. Dial thermometers such as the dial face shown in the photograph at the top of this page are inexpensive (typically less than $10. 177 m 3 /s) for 8-inch (203 mm) joists and 525 cubic feet per minute (0. In this case, you will have to use R-8 duct insulation on the exterior ducts and R-6 on unconditioned ducts in warmer climates (up to climate zone 4). The formula for calculating BTU loss or gain in converting CFM to BTU is temperature difference times actual CFM leakage times 1. Enter the perimeter of the duct in inches; Line 6. northern hydraulics great falls ) hole in a straight section of duct away from heating, cooling, or humidifier elements. Airtemp – Quality, Reliability and Value. UL 181 B-C approved for use on flex duct. Specified labels on unit will identify systems that. A duct booster fan is a small fan that can fit inside an air duct and aims to increase the airflow to more distant parts of your home. Thermistor A/C Sensor 3622764C3 S 20524. Then, the technician can calculate exactly how much air is leaking out of your duct system. They can be used indoors and outdoors, and installed on walls or in. Mount the lead end to the ductwork using the supplied screws. This kit includes a Recirculation Door, 2 Blend Doors, a Panel/Floor Door, and a Defroster Door. Trane MOT14392 Motor,Constant Torque CAD$ 862. is solitaire cash legit reddit Making sure your HVAC is balanced is imperative to having a properly working machine. HVAC IN THE USA: HVACR + Water Heating Manufacturing Hit $211 billion in 2021. 5" Ultra Fire Resistant Duct Panning Sheet. HVAC Outlet Temp Sensor reading. Example: 9’x9’ square duct equals a duct size of 81 square feet, so 81/10 = 8. 2015 - Answered by a verified Technician SPN: 1548 - HVAC. In the summer, the temp climbs too high. A is the square feet area of the plenum box. 1, Temperature Sensor Locations. SPN 171 FMI 22389 AAT signal does not agree with other sensors SPN 171 FMI 3249 AAT signal out of range HIGH The instrument cluster, connector 1501 pin 9, sends a 5-volt source to the temperature sensor. SA SPN DTC Description FMI Message Cause Comments Pins Logical Signal 23 171 Ambient Air Temperature 3 Fault on Analog Input 3 above normal when used for outside temperature 23 171 Ambient Air Temperature 4 Fault on Analog Input 3 below normal when used for outside temperature Voltage above normal, or shorted to high …. HVAC Refrigerant Inlet Temperature. the duct losses can account for 30% of energy the ground remains at a relatively constant temperature. Siemens 540-128 - Duct Temperature Sensor - 10k Ohm Thermistor- The single point 10K ohm Duct Temperature Sensor assembly is inserted into the duct to provide an input to an equipment controller. Next, divide that number by your home’s square footage. SPN FMIDescription 2609 16A/C High Pressure Protection 1079 15 volt sensor supply below normal Yes: Go to step 5. R-8 value meets or exceeds most energy codes and helps reduce energy costs. 5 CM2150 Fault Code: 2398 PID: SPN: 171 FMI: 2 Ambient Air Temperature – Data Erratic, Intermittent, or Incorrect. 2 None of the additives shall be used separately or together in quantities as to impair long term physical and chemical properties of the duct. The machine is designed to capture the Freon, filter out the impurities and store. HVAC Refrigerant Outlet Temperature. We then take a 7" and 5" run (-200 CFM) off of this section bringing the remaining total to 675 CFM - 925 CFM. Standard cubic feet per minute (scfm): This is the delivered. Inductor 10-in dia 300-CFM Galvanized Steel Axial Duct Fan. Spiral ductwork is available in diameters from 80 mm to 1600 mm - and most of the standard diameters is available from stock. Sensor Short To Ground or faulty sensor system HVAC Refrigerant Outlet Temperature 1600 -B. Disconnect the Fuel Supply Temperature. Honeywell HSH-D series duct temperature & relative humidity sensors are applied to measure the HVAC duct air temperature and relative humidity. Circulate air through HVAC systems using round, rectangular, and. Successful testing and assessments are done for the duct size range up to 6000 millimeters in compliance with BS 476 part 24 and ISO 6944-1985 at internationally accredited Applus+ Laboratories at. 7: Rectangular Duct Hangers Minimum Size 5. 5 Volts through all Switch positions, failed HVAC Control Head is a likely cause. Dual duct Systems: For these systems, the hot air and cold air are ducted to the zone and mixed together at the zone in a mixing box that is controlled from the zone temperature. a) Preheat coils controlled by an outdoor temperature controlled. According to Knapp Schmidt Architect, small businesses with one cooling zone can expect to pay between $3 and $4 per square foot for AC systems, while larger businesses can pay between $7. Proudly family owned since 1982.