Carrier Infinity 25HNA6 Installation Instruction Download | Manualshive

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Summary of Contents for Infinity 25HNA6

Page 1: ...C for special requirements Recognize safety information This is the safety alert symbol _ When you see this symbol on the unit and in instructions or manuals be alert to the potential for personal iniury Understand these signal words DANGER WARNING and CAUTION These words are used with the safety alert symbol DANGER identifies the most serious hazards which will result in severe personal iniury or...

Page 2: ...efrigerant tubing sets metering device and filter drier listed in presale literature There can be no deviation Consult the Service Manual Air Conditioners and Heat Pumps Using Puron Refrigerant to obtain required unit changes for specific applications and for R 22 retrofit Check Equipment and Job Site Unpack Unit Move to final location Remove carton taking care not to damage unit Inspect Equipment...

Page 3: ...LSV kit part no KHALS0401LLS specifically designed for Puron refrigerant heat pumps LSV should be installed within 2 ft 0 61 m of outdoor unit with flow arrow pointing toward outdoor unit Follow the Installation Instructions included with accessory kit IMPORTANT Flow arrow must point toward outdoor unit UNIT DAMAGE HAZARD Failure to follow this caution may result in equipment damage or improper op...

Page 4: ...nity Control Winter Start Control Low Ambient not allowed with non No No communicating thermostat Standard on 25HNA6 models Standard on 25HNA6 models Standard on 25HNA6 models Compressor Start Assist Capacitor Not required on 25HNA9 models Not required on 25HNA9 models Not required on 25HNA9 and Relay since compressor always starts since compressor always starts models since compressor unloaded un...

Page 5: ...on in liquid service valve 2 Check outdoor piston size with matching number listed on unit rating plate 3 Locate plastic bag taped to unit containing adapter tube 4 Remove Teflon washer from bag and install on open end of liquid service valve 5 Remove adapter tube from bag and connect threaded nut to liquid service valve Tighten nut finger tight and then with wrench tighten an additional 1 2 turn ...

Page 6: ...ter Furnish power to crankcase heater a minimum of 24 hr before starting unit To furnish power to heater only set thermostat to OFF and close electrical disconnect to outdoor unit NOTE On 25HNA6 models starting the compressor without a minimum of 12 hours of crankcase heat prior to initial start up may result in a compressor chattering noise and possible damage to the compressor Install Accessorie...

Page 7: ...an overview of the two stage control flmctions Cooling and Heating Operation The 25HNA6 model utilizes either a standard indoor thermostat or Infinity Communication User Interface The 25HNA9 models utilize an Infinity communicating User Interface only With a call for first stage cooling the outdoor fan reversing valve and low stage compressor are energized If low stage cannot satisfy cooling deman...

Page 8: ...l board cycles the fan off and on Table 3 Outdoor Fan Motor PWM Above 55 F 12 78 C Outdoor Temp DC volts Tolerance 2 Model 25HNA924 25HNA966 25HNA948 25HNA960 Low Staae OAT_t 04 F 40 C 8 72 9 06 9 91 10 83 Hiah Staae OAT_104 F 40 9 35 10 26 11 04 11 7 Low Hiah Sta_ag__ OAT t 04 F 40 C 11 9 11 9 11 9 11 9 NOTE For 25HNA9 models in low ambient cooling the PWMoutput for both high and low stage equals...

Page 9: ...or low stage operation below 104 F 40 C Defrost This control offers 5 possible defrost interval times 30 60 90 120 nfinutes or AUTO On 25HNA6 models these are selected by dip switches on the unit control board or by the Infinity Control User Interface The A06526 Infinity Control selection overrides the control board dip switch settings On 25HNA9 the defrost interval times 30 60 90 and 120 nfinutes...

Page 10: ...tandard refrigerant line lengths 80 ft 24 38 m or less allow system to operate in cooling mode at least 15 minutes If conditions are favorable check system charge by subcooling method If any adjustment is necessary adjust charge slowly and allow system to operate for 15 minutes to stabilize before declaring a properly charged system If the indoor temperature is above 80 F 26 67 C and the outdoor t...

Page 11: ... check the refrigerant charge and indoor airflow cooling and outdoor fan operation and outdoor coil in heating Control Fault If the outdoor unit control board has failed the control will flash the appropriate fault code see Table 6 The control board should be replaced Brown Out Protection If the line voltage is less than 187v for at least 4 seconds the appropriate compressor contactor and fan rela...

Page 12: ...that converts the 24v DC signal to 24v AC DO NOT INSTALL A PLUG WITHOUT AN INTERNAL RECTIFIER Unloader Test Procedure The unloader is the compressor internal mechanism controlled by the DC solenoid that modulates between high and low stage If it is suspected that the unloader is not working the following methods may be used to verify operation 1 Operate the system and measure compressor amperage C...

Page 13: ... place with spherical nib end facing to wards the front of the control box If there is a thermistor out of range error defrost will occur at each time interval during heating operation but will terminate after 5 minutes Count the number of short and long flashes to determine the appropriate flash code Table 6 gives possible causes and actions related to each error OCT Thermistor must be secured ti...

Page 14: ...ation detected then disappears while low stage demand mal Cutout 71 exists Possible causes are internal compressor overload trip or start relay and capacitor held in circuit too long if installed High Stage Ther Compressor operation detected then disappears while high stage demand mal Cutout 72 exists Possible causes are internal compressor overload trip or start relay and capacitor held in circui...

Page 15: ... Stage Heat Pump non communicating applies to 25HNA6 Models Only THERMIDISTAT TSTAT RVS COOLING HEAT COOL STAGE 1 COMPRESSOR LO HEAT STAGE 3 FURNACE HEAT COOL STAGE 2 COMPRESSOR HI FAN _ 24 VAC HOT 24 VAC COMM I_ N A I_ RVS SENSING _ O ET sOCR__ E2 CONNEDT ON VARIABLE SPEED FURNACE _ _ HUM OUTDOOR _ SENSOR TWO STAGE HEAT PUMP A08090 Fig 11 Thermidistat Model TSTATCCPRH01 B with Variable Speed Furn...

Page 16: ...rd 11 Use hoses with 700 psig service pressure rating 12 Leak detectors should be designed to detect HFC refrigerant 13 Puron refrigerant as with other HFCs is only compatible with POE oils 14 Vacuum pumps will not remove moisture from oil 15 Do not use liquid line filter driers with rated working pressures less than 600 psig 16 Do not leave Puron refrigerant suction line filter driers in line lon...

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