Lennox Allied Air 4HP18LT- 24 Скачать руководство пользователя страница 17 | Manualshive

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506257-01

Issue 1330

Page 17 of 29

Normal Operating Pressures

Table 8

L - Liquid S- Suction

Values provided above are typical pressures. Indoor unit matchup, indoor air quality equipment, and indoor

load will case pressures to vary.

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Содержание Allied Air 4HP18LT- 24

Страница 1: ...tallation and service performed by unqualified persons can result in property damage personal injury or death WARNING Sharp metal edges can cause injury When installing the unit use care to avoid shar...

Страница 2: ...for use by qualified personnel and do not supersede any national or local codes in any way The installation must comply with all provincial state and local codes as well as the National Electrical Cod...

Страница 3: ...or 2 per 5 This will prevent ice from building up under the unit during a defrost cycle Refer to following roof mounting section for barrier construction if unit must face prevailing winter winds If...

Страница 4: ...o this section as well as the section that follows entitled Flushing Existing Line Set and Indoor Coil If this unit is being matched with an approved line set or indoor coil which was previously charg...

Страница 5: ...Connection Procedure 1 Cut ends of refrigerant lines square free from nicks or dents Debur the ends The pipe must remain round do not pinch end of line 2 Before making line set connections use dry nit...

Страница 6: ...r use either metal strapping material or anchored heavy nylon wire ties Strapping Material around vapor line only 8 8 Tape or Wire Tie Strap the vapor line to the joist or rafter at 8 intervals then s...

Страница 7: ...Refrigerant lines must not contact structure Anchored Heavy Nylon Wire Tie Wall Stud Metal Sleeve Vapor Line Wrapped in Armaflex Liquid Line Wall Stud Automotive Muffler Type Hanger Strap Liquid Line...

Страница 8: ...confirm that the entire system is completely void of refrigerant Disconnect the liquid and suction lines from the existing outdoor unit If the existing outdoor unit is equipped with manual shutoff val...

Страница 9: ...procedure 9 Close the valve on the inverted R 22 cylinder and the gauge set valves Pump the remaining refrigerant out of the recovery machine and turn the machine off 10 Use nitrogen to break the vacu...

Страница 10: ...primary leak seal To Access the Schrader Port 1 Remove the service port cap with an adjustable wrench 2 Connect gauge to the service port 3 When testing is completed replace service port cap Tighten...

Страница 11: ...tion refrigerant requirements will vary with lengths Check all joints for leaks Purge nitrogen and R410A mixture Correct any leaks and rechecks Evacuation Evacuating the system of noncondensables is c...

Страница 12: ...ld gauge center port hose to a nitrogen cylinder with pressure regulator set to 150 psig and purge the hose Open the manifold gauge valves to break the vacuum in the line set and indoor unit Close the...

Страница 13: ...efrigerant Units are factory charged with the amount of R410A refrigerant indicated on the unit rating plate This charge is based on a matching indoor coil and outdoor coil with 15 line set For varyin...

Страница 14: ...is void of refrigerant or if the outdoor ambient temperature is cool use the weigh in method to charge the unit Do this after any leaks have been repaired 1 Recover the refrigerant from the unit 2 Con...

Страница 15: ...ature from the liquid line temperture to determine the approach temperature T em p F P ressure P sig T em p F P ressure P sig T em p F P ressure P sig 32 100 8 74 214 0 116 396 0 33 102 9 75 217 4 117...

Страница 16: ...8 to perform maintenance checks Table 7 is not a procedure for charging the system Minor variations in these pressures may be due to differences in installations Significant deviations could mean that...

Страница 17: ...ue 1330 Page 17 of 29 Normal Operating Pressures Table 8 L Liquid S Suction Values provided above are typical pressures Indoor unit matchup indoor air quality equipment and indoor load will case press...

Страница 18: ...erature is below 50 F System should be left in the emergency heat mode at least 6 hours to allow the crankcase heater sufficient time to prevent compressor slugging Defrost System The defrost system i...

Страница 19: ...onds going in and out of the defrost mode when the compressor delay jumper is installed NOTE The 30 second off cycle is deactivated if the TEST pin is removed Time Delay The timed off delay is 5 minut...

Страница 20: ...flash a number of times consecutively pause and then repeat the process The number of consecutive flashes correlates to a paticular abnormal condition TRIP LED Red indicates there is a demand signal f...

Страница 21: ...or 21VAC is removed from the module TRIP andALERT LEDs flashing at the same time means control circuit voltage is too low for operation 24VAC Power Wiring The diagnostic module requires a constant nom...

Страница 22: ...ut is 24VAC When the coil is not energized the demand signal input should be less than 0 5VAC Miswired Module Codes Depending on the system configuration some ALERT flash codes may not be active The p...

Страница 23: ...perage draw at the outdoor fan motor compressor and indoor blower motor Values should be compared with those given on unit nameplate Check clean or replace indoor unit filters Check the refrigerant ch...

Страница 24: ...l such as pet urine cottonwood seeds etc Heat Pump Operation Heat pump units have several characteristics you should be aware of Heat pumps satisfy heating demand by delivering large amounts of warm a...

Страница 25: ...he auxiliary heat Indicating Light Most heat pump thermostats have an amber light which indicates when the heat pump is operating in the emergency heat mode Temperature Indicator The temperture indica...

Страница 26: ...tdoor Fan __________ Maximum Fuse or Circuit Breaker ________________________ Electical Connections Tight Indoor Filter Clean Supply Voltage Unit Off __________ Indoor Blower RPM ___________________ S...

Страница 27: ...EQUIPMENT GROUND HR1 L2 208 230 60 1 L1 K1 1 BLACK YELLOW RED RED C12 ORANGE B4 PURPLE B1 GROUND LUG GROUND L2 L1 208 230 60 1 DUAL CAPACITOR RED COMPRESSOR CONTACTOR BLACK COMPRESSOR CRANKCASE HEATE...

Страница 28: ...er is unable to provide warranty service check online at www alliedair com 3 Be prepared to furnish the following information a complete model and serial number b proof of required periodic maintenanc...

Страница 29: ...t 3 Modification change or alteration of the unit except as expressly directed in writing by Allied Air 4 Improper use accident neglect or unreasonable use or operation of the unit including operation...

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