It looks like you are lost! TRANE XL13c (4TCX3) features: Architecturally integrated design complements the beauty of your home. Exclusive components like a Spine Fin™ coil, Weather Beater Top, and the Vortica™ Blower will deliver the sustained performance you expect season after season. Ultra quiet operation delivers comfort without disrupting your home environment. Every Trane Packaged Unit is packed with high-quality components. Each helps ensure that time after time, your unit will provide total comfort your family can rely on. Convertible to either horizontal or vertical airflow State-of-the-art airflow system featuring the Vortica™ blower for quiet and efficient operation TRANE XR13m (TCK) features: The XR13m’s SEER (Seasonal Energy Efficiency Ratio) rating of 13.00 makes it a good solution for home comfort and energy efficiency. The rugged, flexible design is made for long-lasting performance and allows for both rooftop and ground-level placement.

Trane Climatuff™ Compressor provides consistent, quiet performance for maximum comfort. Every Trane air conditioner is packed with high-quality components. Heavy gauge steel coil guard Baked on powder paint finish over a galvanized steel cabinet Climatuff™ Compressor for reliable operation TRANE XR13h (TCH) features: With a rating of up to 13.75 SEER, the XR13h is an energy-efficient choice for home cooling. Adaptable design lets you choose either rooftop or ground-level installation. An enhanced fan system allows for quiet operation and high efficiency. Every Trane air conditioner (type) is packed with high-quality components. TRANE XB13c (4TCC3) features: Delivers the most reliable indoor comfort in an attractive and rugged cabinet. Powerful airflow system is capable of delivering comfort to every corner of your home. Rugged, all steel cabinet Safe and reliable spark ignition system State-of-the-art airflow system featuring the Vortica™ blower for quiet and efficient operation

This page about troubleshooting Trane air conditioning controls will discuss Trane's microelectronic controls and zone sensors. This is the UCP board and zone sensor (wall thermostat) I've worked on in Trane package units in the 10 to 20 ton range. According to their operation and troubleshooting manual "MICRO-M-2D 18-HH60E2-4", these controls are used on units from 3 to 25 tons.freon for ac window unit We'll start with the thermostat, which Trane calls a zone sensor.auto glass repair reno nevada It looks pretty much like a standard solid state thermostat, but you can't replace it with a standard thermostat,2.5 ton ac unit and furnace and the troubleshooting procedure will explain why. Test 1 when troubleshooting Trane air conditioning controls:

Turn the unit off, open the zone sensor, and check for the following readings between terminals 1 and 2: Test 2 when troubleshooting Trane air conditioning controls: Look for 100 to 900 ohms between terminals 2 and 3, and 100 to 900 ohms between terminals 2 and 5. Look for the following resistances between terminals 2 and 4. As you can see, this zone sensor provides the controller with resistances, not open or closed switch contacts, which is why a normal thermostat won't work as a replacement. These first three tests are as far as I've ever had to go when troubleshooting Trane air conditioning controls to find a failed zone sensor. The booklet mentioned above has a lot more detailed information about troubleshooting procedures for Trane's zone sensors, and for the UCP board. If you work on many of these units, this booklet will help a lot. If you're troubleshooting Trane air conditioning controls and need to test the UCP board: First, verify that the LED in the lower left corner of the board is on and steady.

Jump accross the two top terminals of the LTB. These are the test terminals. The LED will blink to indicate the unit is in test, And this first test brings on the evaporator fan. Jumper the test terminals again, and the Economizer will operate, if installed. Jumper the test terminals again, and the first cooling stage will run. Jumper the test terminals again, and the second cooling stage will run. Jumper the test terminals again, and the first heat stage will operate. Jumper again, and the second heat stage will operate if installed. Jumper again, and the third heat stage will operate if installed. Jumper again, and the defrost cycle will operate if installed. Jumper again, and emergency heat will operate if installed. Jumper again, and the unit will go into normal operation, and the LED will stay on steady. If the board cycles through all installed stages normally, it is good. I've seen Trane's boards go bad, but all except one were due to direct exposure to rain and moisture.

The most unusual problem I've seen regarding troubleshooting Trane air conditioning controls, was a low voltage control relay with a bad set of contacts on the UCP board. The relay would energize and deliver control voltage to a voltage tester, but the contacts would drop the voltage if there was a load like a contactor in the circuit. In an emergency, if you're troubleshooting Trane air conditioning controls on a unit with a failed zone sensor, need to get it running, and don't have one available for replacement, you can use the OAS thermistor. Look under the control panel, on the right corner post. There is a thermistor mounted there. Cut the two splice caps in its leads, and isolate the cut wires in the control box by putting a wire nut on each one. Slide the thermistor down and out of its grommet. Install the thermistor in the return air flow, and wire it to terminals one and two on the LTB. These are the second and third terminals down on the left row.

The unit will run in default mode, which I understand is set for 74° cooling, 71° heating. I'm not sure about the heating setting. The booklet isn't clear about it, and I've never had to do this during a heating season. This is the warning note from the booklet: This is for temporary operation only! Economizer, condenser fan cycling, and evaporator defrost functions are disabled. The evaporator will freeze during low ambient cooling. Do You Know Some "Inside Info" About Other Types of Trane Controls? Do you have a lot of experience working on Trane heating and air conditioning controls?Would you like to share your expertise, and write an article about some of the tips you've picked up from Trane service manuals and your practical hands-on experience?We'd like to help you share your knowledge with other technicians and equipment owners world-wide, by including your article as a page on this site. Write the Title for your Trane Controls article in this space.