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TABLE 2. Refrigerant Line Set – Inches (mm)

Model Number (-xx*)

Valve Size Connections

Recommended Line Sets

Liquid Line

Suction Line

L15 Line Set Model

Line Set Length

Catalog Number

4AC14LS18P

4AC14LS24P

4AC14LS30P

3/8" (10mm)

3/4" (19mm)

L15-41-20

20 feet (6.1 m)

89J56

L15-41-30

30 feet (9.1 m)

89J57

L15-41-40

40 feet (12.2 m)

89J58

L15-41-50

50 feet (15.2 m)

89J59

4AC14L48P

4AC14LS36P

4AC14LS42P

3/8" (10mm)

7/8" (22mm)

L15-65-30

30 feet (9.1 m)

89J60

L15-65-40

40 feet (12.2 m)

89J61

L15-65-50

50 feet (15.2 m)

89J62

4AC14L60P

3/8" (10mm)

1-1/8" (29mm) **

Field-fabricated

N/A

*Applicable to all minor revision numbers unless otherwise specified.

**Some applications may require a field-provided 1-1/8" to 7/8" adapter.

Содержание 4AC14L48P

Страница 1: ...ct Specifications bulletin EHB for approved indoor component match ups These instructions are intended as a general guide and do not supersede local codes in any way Consult authorities having jurisdiction before installation NOTICE Charging information is given on the charging procedure sticker on the unit access panel For more in depth information consult the Installation and Service Procedures ...

Страница 2: ...ust gases and the chemicals contained within them may cause condensation to form on the steel cabinet and other metal components of the outdoor unit This will diminish unit performance and longevity WARNING To prevent personal injury as well as damage to panels unit or structure observe the following While installing or servicing this unit carefully stow all removed panels so that the panels will ...

Страница 3: ...nsibly Failure to follow this warning may result in personal injury or death WARNING Fire Explosion and Personal Safety hazard Failure to follow this warning could result in damage personal injury or death Never use oxygen to pressurize or purge refrigeration lines Oxygen when exposed to a spark or open flame can cause fire and or an explosion that could result in property damage personal injury o...

Страница 4: ...20 feet 6 1 m 89J56 L15 41 30 30 feet 9 1 m 89J57 L15 41 40 40 feet 12 2 m 89J58 L15 41 50 50 feet 15 2 m 89J59 4AC14L48P 4AC14LS36P 4AC14LS42P 3 8 10mm 7 8 22mm L15 65 30 30 feet 9 1 m 89J60 L15 65 40 40 feet 12 2 m 89J61 L15 65 50 50 feet 15 2 m 89J62 4AC14L60P 3 8 10mm 1 1 8 29mm Field fabricated N A N A Applicable to all minor revision numbers unless otherwise specified Some applications may r...

Страница 5: ...nnect the liquid line to the indoor unit s liquid line orifice housing LOW HIGH EXISTING INDOOR UNIT GAUGE MANIFOLD CYLINDER CONTAINING CLEAN HCFC 22 TO BE USED FOR FLUSHING Positioned to deliver liquid refrigerant LIQUID LINE SERVICE VALVE INLET DISCHARGE TANK RETURN CLOSED OPENED RECOVERY CYLINDER RECOVERY MACHINE NEW OUTDOOR UNIT VAPOR LINE SERVICE VALVE VAPOR LIQUID 1 A HCFC 22 cylinder with c...

Страница 6: ... ends The pipe must remain round Do not crimp end of the line Remove service cap and core from both the vapor and liquid line service ports 1 2 LIQUID LINE SERVICE VALVE SERVICE PORT CORE SERVICE PORT CAP SERVICE PORT CORE SERVICE PORT CAP CUT AND DEBUR LINE SET SIZE MATCHES SERVICE VALVE CONNECTION DO NOT CRIMP SERVICE VALVE CONNECTOR WHEN PIPE IS SMALLER THAN CONNECTION 3 VAPOR LINE SERVICE VALV...

Страница 7: ... cloths WHEN BRAZING LINE SET TO SERVICE VALVES POINT FLAME AWAY FROM SERVICE VALVE PREPARATION FOR NEXT STEP 7 WRAP SERVICE VALVES To help protect service valve seals during brazing wrap water saturated cloths around service valve bodies and copper tube stubs Use additionalwater saturated cloths underneath the valve body to protect the base paint 4 FLOW NITROGEN Flow regulated nitrogen at 1 to 2 ...

Страница 8: ...FOR FURTHER DETAILS SENSING LINE EQUALIZER LINE CHECK EXPANSION VALVE TEFLON RING Uncased Coil Shown Sensing bulb insulation is required if mountedexternal to the coil casing sensing bulb installation for bulb positioning STUB END TEFLON RING LIQUID LINE ASSEMBLY WITH BRASS NUT DISTRIBUTOR ASSEMBLY 3 Install one of the provided Teflon rings around the stubbed end of the check expansion valve and l...

Страница 9: ... 150 psig 1034 kPa Open the valve on the high side of the manifold gauge set in order to pressurize the line set and the indoor unit E After a few minutes open one of the service valve ports and verify that the refrigerant added to the system earlier is measurable with a leak detector F After leak testing disconnect gauges from service ports After the line set has been connected to the indoor and ...

Страница 10: ...nifold gauge valves F When the absolute pressure requirement above has been met disconnect the manifold hose from the vacuum pump and connect it to a cylinder of HFC 410A positioned to deliver liquid refrigerant Open the manifold gauge valve 1 to 2 psig in order to release the vacuum in the line set and indoor unit G Perform the following Close manifold gauge valves Shut off HFC 410A cylinder Rein...

Страница 11: ...ay result in property damage Size wiring and circuit breaker s per Product Specifications bulletin EHB and unit rating plate WARNING ELECTROSTATIC DISCHARGE ESD Precautions and Procedures Electrostatic discharge can affect electronic components Take care during unit installation and service to protect the unit s electronic controls Precautions will help to avoid control exposure to electrostatic d...

Страница 12: ...d secure with provided wire tie B Make 24VAC thermostat wire connections Locate the two wires from the contactor and make connection using field provided wire nuts Yellow to Y1 Black to C common ROUTING HIGH VOLTAGE GROUND AND CONTROL WIRING WIRE RUN LENGTH AWG INSULATION TYPE LESS THAN 100 30 METERS 18 TEMPERATURE RATING MORE THAN 100 30 METERS 16 35ºC MINIMUM HIGH VOLTAGE GROUND WIRES FIELD CONT...

Страница 13: ...ort which has a factory installed valve stem Figures 15 and 16 provide information on how to access and operate both angle and ball type service valves Torque Requirements When servicing or repairing heating ventilating and air conditioning components ensure the fasteners are appro priately tightened Table 2 lists torque values for fasteners TABLE 1 TORQUE REQUIREMENTS Parts Recommended Torque Ser...

Страница 14: ...cated on the unit access panel Detailed information is provided in the 4AC14 Installation and Service Procedures manual Homeowner Information CAUTION Beforeattemptingtoperformanyserviceormaintenance turn the electrical power to unit OFF at disconnect switch In order to ensure peak performance your system must be properly maintained Clogged filters and blocked air flow prevent your unit from operat...

Страница 15: ...ect contactor contacts for pitting or burn marks Replace as necessary 7 Check outdoor fan motor for worn bearings bushings Replace as necessary 8 Inspect and clean outdoor coils if necessary and note any damage to coils or signs of leakage Indoor Unit Air Handler or Furnace 1 Inspect component wiring for loose worn or damaged connections Confirm proper voltage plus amperage of indoor unit 2 Inspec...

Страница 16: ...pply Air Temperature Ambient Temperature Return Air Temperature System Refrigerant Charge Refer to manufacturer s information on unit or installation instructions for required subcooling and approach temperatures Subcooling A B SUBCOOLING Saturated Condensing Temperature A minus Liquid Line Temperature B Approach A B APPROACH Liquid Line Temperature A minus Outdoor Air Temperature B Indoor Coil Te...

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