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Page 24

506636−01

WHEN TO CHARGE?

Warm weather best

Can charge in colder weather

CHARGE METHOD?

Determine by:

Metering device type

Outdoor ambient temperature

REQUIREMENTS:

Sufficient heat load in structure

Indoor temperature between 70-80ºF
(21−26ºC)

Manifold gauge set connected to unit

Thermometers:
−

to measure outdoor ambient temperature

−

to measure liquid line temperature

−

to measure suction line temperature

TXV

FIXED

ORIFICE

APPROACH OR

SUBCOOLING

WEIGH-IN

SUPERHEAT

START: Determine how refrigerant is metered

39ºF

(3.8ºC) and

Below

Which indoor

metering

device?

WEIGH-IN

64ºF

(17.7ºC) and

Below

40ºF

(4.4ºC) and

Above

DETERMINING CHARGE METHOD

65ºF

(18.3ºC) and

Above

Figure 19. Determining Charge Method

Содержание XC13 Series

Страница 1: ...low the brazing technique illustrated starting on page 12 to avoid damaging the service valve s internal seals INSTALLATION INSTRUCTIONS Elite Series XC14 Units AIR CONDITIONER 506636 01 07 11 Superse...

Страница 2: ...ove XC14 024 230 35 889 30 1 2 775 35 889 13 7 8 352 7 3 4 197 3 1 4 83 27 1 8 689 3 5 8 92 4 1 2 114 20 5 8 524 XC14 030 230 39 991 XC14 036 230 39 991 XC14 042 230 31 787 XC14 041 230 39 991 XC14 04...

Страница 3: ...SUCTION LINE MUFFLER HIGH PRESSURE SWITCH S4 COMPRESSOR HARNESS GROUND LUG SINGLE POLE CONTACTOR 1POLE K1 1 DUAL RUN CAPACITOR C12 CONTROL PANEL PLUMBING AND SWITCHES COMPONENTS COMPRESSOR DISCHARGE...

Страница 4: ...loss during shipping and handling Using an Allen wrench rated at less than 50Rc risks rounding or breaking off the wrench or stripping the valve stem recess See the Lennox Service and Application Note...

Страница 5: ...2 1 12 TURN To Access Service Port A service port cap protects the service port core from contamination and serves as the primary leak seal 1 Remove service port cap with an appropriately sized wrench...

Страница 6: ...ssure ratio meets a certain value or when the suction pressure is as high as 20 psig Compressor suction pressures should never be allowed to go into a vacuum Prolonged operation at low suction pressur...

Страница 7: ...ss has a very high level of sound transmission For proper placement of unit in relation to a window see the provided illustration in figure 5 detail A PLACING UNIT ON SLAB When installing unit at grad...

Страница 8: ...wo 2 degrees or two inches per five feet 50 mm per 1 5 m away from building structure MOUNTING SLAB BUILDING STRUCTURE GROUND LEVEL Outside Unit Placement Slab Mounting at Ground Level SAME FASTENERS...

Страница 9: ...ERED PANEL REMOVAL Remove the louvered panels as follows 1 Remove two screws allowing the panel to swing open slightly 2 Hold the panel firmly throughout this procedure Rotate bottom corner of panel a...

Страница 10: ...nnox L15 sweat non flare series line set or field fabricated refrigerant line sizes as listed in table 2 NOTE When installing refrigerant lines longer than 50 feet see the Lennox Refrigerant Piping De...

Страница 11: ...R RAFTER AT 8 FEET 2 43 METERS INTERVALS THEN STRAP THE LIQUID LINE TO THE VAPOR LINE FLOOR JOIST OR ROOF RAFTER REFRIGERANT LINE SET INSTALLING HORIZONTAL RUNS NOTE Similar installation practices sho...

Страница 12: ...razing alloys and flux contain materials which are hazardous to your health Avoid breathing vapors or fumes from brazing operations Perform operations only in well ventilated areas Wear gloves and pro...

Страница 13: ...FROM SERVICE VALVE Flow regulated nitrogen at 1 to 2 psig through the low side refrigeration gauge set into the liquid line service port valve and out of the suction vapor line service port valve CUT...

Страница 14: ...structions for the next step in preparing the unit WHEN BRAZING LINE SET TO SERVICE VALVES POINT FLAME AWAY FROM SERVICE VALVE PREPARATION FOR NEXT STEP 7 WARNING 1 FIRE PERSONAL INJURY OR PROPERTY DA...

Страница 15: ...on valve and the two Teflon rings H Use a field provided fitting to temporary reconnect the liquid line to the indoor unit s liquid line orifice housing LOW HIGH EXISTING INDOOR UNIT GAUGE MANIFOLD IN...

Страница 16: ...LINE ASSEMBLY WITH BRASS NUT DISTRIBUTOR ASSEMBLY A Remove the field provided fitting that temporary reconnected the liquid line to the indoor unit s distributor assembly B Install one of the provided...

Страница 17: ...nder of HFC 410A refrigerant to the center port of the manifold gauge set Open the valve on the HFC 410A cylinder vapor only B Open the high pressure side of the manifold to allow HFC 410A into the li...

Страница 18: ...d indoor unit until the absolute pressure does not rise above 500 microns 29 9 inches of mercury within a 20 minute period after shutting off the vacuum pump and closing the manifold gauge valves F Wh...

Страница 19: ...Refer to the unit nameplate for minimum circuit ampacity and maximum fuse or circuit breaker HACR per NEC Install power wiring and properly sized disconnect switch NOTE Units are approved for use onl...

Страница 20: ...s XC13 XC13 XC13 XC13 XC13 XC13 XC13 Figure 14 24VAC Control Wiring Diagrams Field Installed HIGH PRESSURE SWITCH S4 CRANKCASE THERMOSTAT S40 CRANKCASE HEATER HR1 DUAL RUN CAPACITOR C12 FAN MOTOR B4 C...

Страница 21: ...TECTION SWITCH S5 OR S173 HIGH PRESSURE SWITCH S4 CRANKCASE THERMOSTAT S40 CRANKCASE HEATER HR1 DUAL RUN CAPACITOR C12 FAN MOTOR B4 COMPRESSOR B1 CONTACTOR K1 GROUND LUG Figure 16 Typical Factory Wiri...

Страница 22: ...Page 22 506636 01 Figure 17 Typical Unit Wiring Diagram...

Страница 23: ...ly at the disconnect switch The voltage must be within the range listed on the unit s nameplate If not do not start the equipment until you have consulted with the power company and the voltage condit...

Страница 24: ...anifold gauge set connected to unit Thermometers to measure outdoor ambient temperature to measure liquid line temperature to measure suction line temperature TXV FIXED ORIFICE APPROACH OR SUBCOOLING...

Страница 25: ...14 13 12 11 10 70 19 19 18 18 17 17 16 15 15 14 13 12 11 10 57 58 59 60 61 62 63 64 65 66 67 68 69 70 Temp of air entering indoor coil F INDOOR COIL DRY BULB DRY BULB WET BULB B TDrop 19 A Dry bulb We...

Страница 26: ...igh in or remove refrigerant based upon line length SC Subcooling Values F 1 0 C 0 6 BLOCK OUTDOOR COIL sometimes necessary with lower temperatures Use cardboard or plastic sheet to restrict the airfl...

Страница 27: ...heat SH VAP _____ SAT ______ SH ______ 11 Record the wet bulb temperature air entering indoor coil WB _______ 12 Record outdoor ambient temperature 13 Compare results with table to the left If value i...

Страница 28: ...9 395 151 421 152 406 149 420 146 418 145 110 43 426 150 420 148 422 148 446 151 424 153 447 153 430 150 447 148 444 146 115 46 457 153 447 150 449 150 480 152 453 155 476 154 460 152 473 150 471 147...

Страница 29: ...coil Consult your installing contractor for proper intervals procedures for your geographic area or service contract INDOOR UNIT 1 Clean or change filters 2 Adjust blower speed for cooling Measure the...

Страница 30: ...ner manual for instructions on how to operate your thermostat Preservice Check If your system fails to operate check the following before calling for service Verify room thermostat settings are correc...

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