Lennox HPXA16 series Скачать руководство пользователя страница 22 | Manualshive

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Page 22

VII−DIAGRAM / OPERATING SEQUENCE

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Содержание HPXA16 series

Страница 1: ...ice equipment rated for R 410A WARNING Improper installation adjustment alteration service or maintenance can cause property damage person al injury or loss of life Installation and service must be pe...

Страница 2: ...230V 1ph 208 230V 1ph 208 230V 1ph 3 Maximum overcurrent protection amps 20 35 45 60 2 Minimum circuit ampacity 13 7 22 1 28 2 33 8 Compressor Rated load amps 10 3 16 7 21 2 25 7 p Locked rotor amps...

Страница 3: ...NG SCROLL DISCHARGE SUCTION CROSS SECTION OF SCROLLS TIPS SEALED BY DISCHARGE PRESSURE DISCHARGE PRESSURE The counterclockwise orbiting scroll draws gas into the out er crescent shaped gas pocket crea...

Страница 4: ...operate on first stage until demand is satisfied or the indoor temperature reaches the thermostat set point calling for second stage Second stage high capacity is achieved by blocking the bypass port...

Страница 5: ...tch Procedure 1 Turn main power OFF to outdoor unit 2 Adjust room thermostat set point above heating op eration on heat pump or below cooling operation the room temperature 5 F 3 Remove control access...

Страница 6: ...ltage at the female connector end of the full wave rectifier plug The DC voltage reading should be 1 5 to 3 volts lower than the input voltage to the plug wire leads EX Input voltage is 24VAC output v...

Страница 7: ...y will allow moisture to en ter the bearing resulting in motor failure See figure 9 FIGURE 8 A SEE TABLE 2 FAN GUARD Condenser fan and motor Wiring Drip loop TABLE 2 HPXA16 UNIT A DIM 1 8 024 036 1 1...

Страница 8: ...ss re frigerant condensed liquid from the indoor coil is trapped by the compensator The vapor line is cooler than the liquid line so liquid migrates from the liquid line to the compensa tor tank where...

Страница 9: ...s for a fifth time during the current Y1 Input the control will enter a lockout condi tion The 5 strike pressure switch lockout condition can be reset by cycling OFF the 24 volt power to the control b...

Страница 10: ...d recognizes five temperature sensor range faults during a single Y1 compressor demand it re verts to a lockout mode and displays the appropriate code The board detects open sensor or out of tem perat...

Страница 11: ...ast defrost cycle while the coil tempera ture remains below 35 F 2 C the demand defrost control will initiate a defrost cycle Actuation When the reversing valve is de energized the Y1 circuit is energ...

Страница 12: ...r will check for ambient and coil faults open or shorted 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...

Страница 13: ...nection to sys tem have secure connections to system to prevent refrigerant leaks or errors in pressure and temperature measurements SLOW Flash ON Discharge Line Tempera ture Fault This code detects s...

Страница 14: ...The reversing valve is energized during cooling de mand and during defrost III REFRIGERANT SYSTEM Field refrigerant piping consists of liquid and vapor lines from the outdoor unit sweat connections U...

Страница 15: ...for liquid line size 3 Replace stem cap and tighten it firmly Tighten finger tight then tighten an additional 1 6 turn To Close Service Valve 1 Remove stem cap with an adjustable wrench 2 Using servic...

Страница 16: ...he vapor valve service port Normally the high pres sure hose is connected to the liquid line port however connecting it to the vapor port better protects the man ifold gauge set from high pressure dam...

Страница 17: ...in the heating season one of the following proce dures must be followed to ensure proper system charge Weighing in the Charge TXV Systems Outdoor Temp 65 F 18 C If the system is void of refrigerant o...

Страница 18: ...d indicate that the system is overcharged Pressures lower than those listed indicate that the system is undercharged Verify adjusted charge using the approach method Approach Method 4 Use the same dig...

Страница 19: ...Vapor 65 18 3 222 143 244 136 232 134 249 126 75 23 9 256 145 282 139 266 136 289 134 85 29 4 302 145 325 142 309 139 330 140 95 35 0 349 147 377 144 359 142 378 143 105 40 6 403 149 428 146 410 144 4...

Страница 20: ...5 506 5 43 125 0 74 214 0 105 340 5 136 512 9 44 127 3 75 217 4 106 345 3 137 519 3 45 129 7 76 220 9 107 350 1 138 525 8 46 132 2 77 224 4 108 355 0 139 532 4 47 134 6 78 228 0 109 360 0 140 539 0 48...

Страница 21: ...m POE oil VI MAINTENANCE WARNING Electric shock hazard Can cause inju ry or death Before attempting to per form any service or maintenance turn the electrical power to unit OFF at dis connect switch e...

Страница 22: ...Page 22 VII DIAGRAM OPERATING SEQUENCE...

Страница 23: ...ost board sends 24 volts through Y1 OUT signal to the K1 compressor contactor coil 3 The defrost board sends 24 volts through Y2 OUT to the L34 compressor solenoid plug The 2 wire com pressor solenoid...

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