Lennox Elite XP14018 Скачать руководство пользователя страница 13

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Page 13

III − REFRIGERANT SYSTEM

Refer to figure 16 and 17 for refrigerant flow in the heat-
ing and cooling modes. The reversing valve is energized
during cooling demand and during defrost.

FIGURE 16

XP14 COOLING CYCLE (SHOWING MANIFOLD GAUGE CONNECTIONS)

OUTDOOR

COIL

EXPANSION/CHECK

VALVE

BIFLOW

FILTER / DRIER

HFC−410A

DRUM

LOW

PRESSURE

HIGH

PRESSURE

COMPRESSOR

REVERSING VALVE

VAPOR

LINE

VALVE

MUFFLER

NOTE − ARROWS INDICATE DIRECTION OF REFRIGERANT FLOW

SERVICE

PORT

SUCTION

EXPANSION/CHECK

VALVE

INDOOR UNIT

OUTDOOR UNIT

LIQUID LINE

SERVICE

PORT

GAUGE MANIFOLD

INTERNAL

COMPRESSOR

LIMIT

DISTRIBUTOR

INDOOR

COIL

COIL SENSOR

FIGURE 17

XP14 HEATING CYCLE (SHOWING MANIFOLD GAUGE CONNECTIONS)

OUTDOOR

COIL

EXPANSION/CHECK

VALVE

BIFLOW

FILTER / DRIER

HFC−410A

DRUM

LOW

PRESSURE

HIGH

PRESSURE

COMPRESSOR

REVERSING VALVE

VAPOR

LINE

VALVE

MUFFLER

NOTE − ARROWS INDICATE DIRECTION OF REFRIGERANT FLOW

SERVICE

PORT

SUCTION

EXPANSION/CHECK

VALVE

INDOOR UNIT

OUTDOOR UNIT

LIQUID LINE

SERVICE

PORT

GAUGE MANIFOLD

INTERNAL

COMPRESSOR

LIMIT

DISTRIBUTOR

INDOOR

COIL

COIL SENSOR

Содержание Elite XP14018

Страница 1: ...ated for HFC 410A WARNING Warranty will be voided if covered equipment is re moved from original installation site Warranty will not cover damage or defect resulting from Flood wind lightning or insta...

Страница 2: ...t protection amps 20 30 30 30 40 50 60 3 Minimum circuit ampacity 11 9 17 5 17 0 19 4 24 2 29 34 8 Compressor Rated Load Amps 8 97 13 46 13 1 14 1 17 94 21 79 26 41 p Locked Rotor Amps 48 58 64 77 112...

Страница 3: ...OR FAN COMPRESSOR HIGH PRESSURE SWITCH REVERSING VALVE FILTER DRIER CONTROL BOX EXPANSION VALVE VAPOR LINE SERVICE VALVE LIQUID LINE SERVICE VALVE A Control Box Figure 2 XP14 units are not equipped wi...

Страница 4: ...g con ditions during the defrost cycle and 90 seconds after the termina tion of defrost when the average ambient sensor temperature is below 15 F 9 C for 90 seconds following the start up of the compr...

Страница 5: ...cted as being open shorted or out of the temperature range of the sensor the control will not perform demand de frost operation The control will revert to time temperature defrost operation and will d...

Страница 6: ...l attempt to self calibrate after this and all other de frost cycle s Calibration success depends on stable system tempera tures during the 20 minute calibration period If the control fails to calibra...

Страница 7: ...horted If a fault exists the unit will remain in Heat Mode and no further test mode operation will be executed until the test short is removed and re applied If no fault exists and ambient temperature...

Страница 8: ...Valve ON W1 line ON Monitor coil temperature and time in defrost mode HOW DID DEFROST TERMINATE Coil temperature was above 35 F 2 C for 4 min of the 14 min de frost OR reached defrost termination tem...

Страница 9: ...hat control has internal component failure Cycle 24 volt power to control If code does not clear replace control FAULT LOCKOUT CODES Each fault adds 1 strike to that code s counter 5 strikes per code...

Страница 10: ...ll is a simple compression concept centered around the unique spiral shape of the scroll and its inherent properties Figure 11 shows the basic scroll form Two identical scrolls are mated together form...

Страница 11: ...nventional Lennox cleanup practices must be used Due to its efficiency the scroll compressor is capable of draw ing a much deeper vacuum than reciprocating compres sors Deep vacuum operation can cause...

Страница 12: ...pole single throw high pressure switch is located in the liquid line This switch shuts off the compres sor when liquid line pressure rises above the factory setting The switch is normally closed and i...

Страница 13: ...ON OF REFRIGERANT FLOW SERVICE PORT SUCTION EXPANSION CHECK VALVE INDOOR UNIT OUTDOOR UNIT LIQUID LINE SERVICE PORT GAUGE MANIFOLD INTERNAL COMPRESSOR LIMIT DISTRIBUTOR INDOOR COIL COIL SENSOR FIGURE...

Страница 14: ...ustable wrench 2 Use a service wrench with a hex head extension to back the stem out counterclockwise as far as it will go NOTE Use a 3 16 hex head extension for 3 8 line sizes or a 5 16 extension for...

Страница 15: ...10A cylinder 4 Connect a cylinder of nitrogen with a pressure regulat ing valve to the center port of the manifold gauge set 5 Connect the manifold gauge set high pressure hose to the vapor valve serv...

Страница 16: ...nute period after shutting off the vacuum pump and closing the manifold gauge valves 9 When the absolute pressure requirement above has been met disconnect the manifold hose from the vacu um pump and...

Страница 17: ...within 3 DT 80 24 24 24 23 23 22 22 22 20 19 18 17 16 15 78 23 23 23 22 22 21 21 20 19 18 17 16 15 14 76 22 22 22 21 21 20 19 19 18 17 16 15 14 13 74 21 21 21 20 19 19 18 17 16 16 15 14 13 12 72 20 20...

Страница 18: ...387 146 397 145 369 146 374 142 384 146 401 143 105 41 402 148 412 147 424 147 394 147 399 143 411 148 426 145 110 38 430 149 441 148 454 150 421 148 428 145 439 149 452 146 115 45 465 150 471 151 48...

Страница 19: ...PUMP Subcool Target Cooling Heating 5 F 1 F Add charge INDOOR HEAT MATCH UP PUMP Subcool Target Cooling Heating 5 F 1 F Add charge XP14 018 lb oz XP14 030 cont d lb oz XP14 042 cont d lb oz CBX27UH 0...

Страница 20: ...OE oils used with HFC 410A refrig erant absorb moisture very quickly It is very impor tant that the refrigerant system be kept closed as much as possible DO NOT remove line set caps or service valve s...

Страница 21: ...cooling the unit should be gauged and refrigerant charge checked Refer to section on refrigerant charging in this instruction 1 Clean and inspect condenser coil Coil may be flushed with a water hose a...

Страница 22: ...Page 22 VII WIRING DIAGRAM AND SEQUENCE OF OPERATION XP14 UNIT DIAGRAM 5 1 2 3 4 6...

Страница 23: ...l thermostat wiring de energizes terminal O by heat ing mode selection de energizing the reversing valve L1 See steps 1 2 and 3 End of FIRST STAGE HEAT See steps 4 5 and 6 DEFROST MODE Whena defrost c...

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