Carrier INFINITY 48XL-A- Manuals

10 2. Avoid abrupt duct size increases and reductions. Abrupt change in duct size adversely affects air performance. IMPORTANT : Use flexible connectors between ductwork and unit to prevent transmission of vibration. Use suitable gaskets toensure weather tight and airtight seal. When electric heat i...

11 condensate connection to ensure proper drainage. Make sure thatthe outlet of the trap is at least 1 in. (25 mm) lower than the drain--pan condensate connection to prevent the pan fromoverflowing. Prime the trap with water. When using a gravel apron, make sure it slopes away from the unit.If the i...

12 Table 2 – Maximum Gas Flow Capacity* NOMINAL IRON PIPE SIZE (IN.) INTERNAL DIAMETER (IN.) LENGTH OF PIPE ft (m)† 10 (3.0) 20 (6.1) 30 (9.1) 40 (12.1) 50 (15.2) 60 (18.3) 70 (21.3) 80 (24.4) 90 (27.4) 100 (30.5) 125 (38.1) 150 (45.7) 175 (53.3) 200 (61.0) 1/2 .622 175 120 97 82 73 66 61 57 53 50 4...

13 ROUTING POWER LEADS INTO UNITUse only copper wire between disconnect and unit. The high voltage leads should be in a conduit until they enter the duct panel;conduit termination at the duct panel must be watertight. Run the high--voltage leads through the power entry knockout on the power entry si...

14 Option 2: Mounting Sensor Under the Outdoor Unit 1. The sensor should be mounted under the northeast corner of the unit. Mount the sensor on the unit in the area not exposed to sunlight. 2. Remove the Control access panel. The OAT Package is in a bag located in Controls compartment. (See Fig. 13....

23 open or shorted at any time after initial validation, Status Code 53will be displayed at amber STATUS LED.Check for faults in wiring connecting sensor to OAT terminals.Using an Ohm meter, check resistance of thermistor for a short or open condition.If thermistor is shorted or open, replace it to ...

26 CARBON MONOXIDE POISONING HAZARD Failure to follow this warning could result in personal injury and/or death.If the manifold pressure and/or gas rate is not properly adjusted on HI and LO stages, excess carbon monoxide can be produced. ! WARNING FIRE AND UNIT DAMAGE HAZARD Failure to follow this ...

28 MANIFOLD BURNER BURNER FLAME C99021 Fig. 22 -- Monoport Burner LIMIT SWITCHESNormally closed limit switch (LS) completes the control circuit. Should the leaving--air temperature rise above the maximumallowable temperature, the limit switch opens and the control circuit “breaks.” Any interruption ...

29 Table 6 – Heating Input s HEATING INPUT (BTU/HR)* NUMBER OF GAS SUPPLY PRESSURE (IN. W.C.) MANIFOLD PRESSURE (IN. W.C.) NUMBER OF ORIFICES Natural Natural High Stage Low Stage ORIFICES Min Max High Stage Low Stage 40,000 26,000 2 4.0 13.0 3.2 ∼ 3.8 1.4 ∼ 2.0 60,000 39,000 3 4.0 13.0 3.2 ∼ 3.8 1.4...

31 MAINTENANCE To ensure continuing high performance, and to minimize thepossibility of premature equipment failure, periodic maintenance must be performed on this equipment. This packaged unit shouldbe inspected at least once each year by a qualified service person. To troubleshoot unit, refer to T...

32 CompressorAccess Panel BlowerAccessPanel ControlAccessPanel A09479 Fig. 25 -- Unit Access Panels Integrated Gas UnitController(IGC) Induced DraftMotor RolloutSwitch Mounting Screw BurnerRack InducerBlowerHousing FlueCollector Box Interface FanBoard (IFB) Auto Transformerfuses used on 460volt unit...

33 Infinity Top A06035 UNIT SIZE “A” DIM. IN. (MM) 24 1 (26) 30 1 (26) 36 1 (26) 42 1 (26) 48 11/32 (9) 60 9/16 (14) Fig. 28 -- Outdoor Fan Blade Clearance Refrigerant Circuit Inspect all refrigerant tubing connections and the unit base for oilaccumulation annually. Detecting oil generally indicates...

34 Synthetic Roof Precautionary Procedure 1. Cover extended roof working area with an impermeable polyethylene (plastic) drip cloth or tarp. Cover anapproximate 10 X 10 ft (3x3 m) area. 2. Cover area in front of the unit service panel with a terry cloth shop towel to absorb lubricant spills and prev...

35 thermal protector has not re--set, the outdoor fan is turned off. Ifthe call for cooling continues, the control will energize the compressor contactor every 15 minutes. If the thermal protectorcloses (at the next 15 minute interval), check the unit will resume operation.If the thermal cutout trip...

36 AIR CONDITIONER WITH PURON REFRIGERATION SECTION QUICK--REFERENCE GUIDE Puron refrigerant operates at 50--70 percent higher pressures than R--22. Be sure that servicing equipment and replacement components are designed to operate with Puron. Puron refrigerant cylinders are rose colored. S Puron r...

37 Table 9 – Troubleshooting Chart -- Cooling SYMPTOM CAUSE REMEDY Compressor and outdoor fan will not start Power failure Call power company Fuse blown or circuit breaker tripped Replace fuse or reset circuit breaker Defective contactor, transformer, control relay, or high-- pressure, loss--of--cha...

38 Table 10—Troubleshooting Chart -- Gas Furnace Operation SYMPTOM CAUSE REMEDY Burners will not ignite Water in gas line Drain. Install drip leg. No power to unit Check power supply fuses, wiring or circuit breaker. No 24--v power supply to control circuit Check transformer. NOTE: Some transformers...