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24VNA6: Installation Instructions

Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.

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* unlikely to clear on its own; see Service Manual for troubleshooting steps

FINAL CHECKS

IMPORTANT: 

Before leaving job, be sure to do the following:

1. Ensure that all wiring is routed away from tubing and sheet metal

edges to prevent rub-through or wire pinching. 

2. Ensure that all wiring  and  tubing  is  secure  in  unit  before adding

panels and covers. Securely fasten all panels and covers. 

3. Tighten service valve stem caps to 1/12-turn past finger tight.
4. Leave  Users  Manual  with  owner.  Explain  system  operation  and

periodic maintenance requirements outlined in manual. 

5. Fill out Dealer Installation Checklist and place in customer file.

CARE AND MAINTENANCE

For  continuing high performance and  to minimize  possible  equipment

failure, periodic maintenance must be performed on this equipment.
Frequency of maintenance may vary depending upon geographic areas,

such as coastal applications. See Owner's Manual for information.

Table 8 – Malfunction Lockout Durations

Code

Title

Time

24-58 5V PCM External Power Out of Range

Duration of Event

25-61 Invalid Model Plug Malfunction

Duration of Event

25-62 Model Plug Missing Malfunction

Duration of Event

25-63 VFD Model Mismatch

Permanent*

28-71 Fuse 1 Open Malfunction

Permanent*

28-72 Fuse 2 Open Malfunction

Permanent*

31-58 Compressor High Pressure Limit 

Malfunction

4 hours

32-55 Compressor Low Pressure Limit Lockout

4 hours

32-59 Low Pressure Disable

Permanent*

33-55 Compressor Low Discharge Limit Lockout

4 hours

34-58 Compressor High Temperature Limit 

Malfunction

4 hours

35-58 Compressor High Compression Limit 

Malfunction

4 hours

36-55 Compressor Low Compression Limit 

Lockout

4 hours

38-53 Compressor Starting Malfunction

4 hours

38-54 Compressor No Pump

30 minutes

38-71 VFD Estimator Malfunction

4 hours

39-53 Fan Start Malfunction

4 hours

39-55 Unexpected Fan Shutdown Malfunction

4 hours

39-58 Fan Motor Malfunction

4 hours

53-41 OST Open / Low Temp

Duration of Event

53-42 OST Shorted / High Temp

Duration of Event

57-41 P1 Open Malfunction

Duration of Event

57-42 P1 Shorted Malfunction

Duration of Event

57-43 P1 Sensor Malfunction

Permanent*

58-41 P2 Open Malfunction

Duration of Event

58-42 P2 Shorted Malfunction

Duration of Event

58-43 P2 Sensor Malfunction

Permanent*

61-41 Reversing Valve Solenoid Open

Duration of Event

64-41 EXV-H Phase Open

Duration of Event

64-44 EXV-H Power Short to Ground

Duration of Event

64-45 EXV-H Phase Short to Ground

Duration of Event

65-41 EXV-VI Phase Open

Duration of Event

65-44 EXV-VI Power Short to Ground

Duration of Event

65-45 EXV-VI Phase Short to Ground

Duration of Event

66-41 VFD Control Relay Coil Open

Duration of Event

66-42 VFD Control Relay Coil Shorted

Duration of Event

81-53 PFC Malfunction

4 hours

81-54 Unbalanced PFCM Malfunction

4 hours

81-58 VFD System Wiring Error

4 hours

82-53 VFD Reset with Power Dropout Malfunction

4 hours

82-55 VFD Shutdown with Power Dropout 

Malfunction

4 hours

82-56 Low Voltage Shutdown Malfunction

4 hours

82-57 Line Over Voltage Malfunction

4 hours

83-55 Compressor Current Limit 3 Lockout

4 hours

83-56 Compressor Current Limit 4 Lockout

4 hours

83-57 Compressor Underspeed Shutdown

1 hours

84-58 VFD Overtemp Malfunction

4 hours

85-53 DC Under Voltage Malfunction

4 hours

85-54 DC Over Voltage Malfunction

4 hours

86-46 VFD Communication Malfunction

1 hour

87-53 VFD Initialization Malfunction

4 hours

88-55 Unexpected VFD Reset Malfunction

4 hours

88-71 VFD Internal Malfunction - Current Sensor

4 hours

88-73 VFD Internal Malfunction - DC Link Sensor

4 hours

88-74 VFD Internal Malfunction - PFCM Sensor A

4 hours

88-75 VFD Internal Malfunction - PFCM Sensor B

4 hours

88-76 VFD Internal Malfunction - Line Volt Sensor

4 hours

88-78 VFD Internal Malfunction - DC Discharge

4 hours

Table 8 – Malfunction Lockout Durations (Continued)

Code

Title

Time

Summary of Contents for 24VNA6 Series

Page 1: ...thin 24VNA6 11 Step13 System Functions and Major Components 12 Primary Control Module 12 Utility Interface With Infinity Control 12 Infinity Control Green Communications COMM Light 12 Amber Status Lig...

Page 2: ...ration with enough bends to provide 10 ft 3 05 m of total line set length outside the dwelling 3 Ensure that vapor and liquid tube diameters are appropriate for unit capacity 4 Run refrigerant tubes a...

Page 3: ...t and Job Site Unpack Unit Move to final location Remove carton taking care not to damage unit This unit employs one louver spacer on each of the four sides to prevent louver movement during operation...

Page 4: ...ant piping arrangements with equivalent lengths of greater than 80 ft 24 38 m and or when elevation difference between indoor and outdoor unit is greater than 20 ft 6 10 m follow the piping configurat...

Page 5: ...stallation CAUTION UNIT DAMAGE HAZARD Failure to follow this caution may result in equipment damage or improper operation If ANY refrigerant tubing is buried provide a 6 in 152 4 mm vertical rise at s...

Page 6: ...lves see Table 1 Sweat Connections Use refrigerant grade tubing Service valves are closed from factory and ready for brazing After wrapping service valve with a wet cloth braze sweat connections using...

Page 7: ...nate transferred noise If further communication issues exist consider using shielded low voltage wires and only connect shielding to C terminal at end nearest indoor coil Final Wiring Check IMPORTANT...

Page 8: ...Do not attempt to operate the system in heating or cooling mode at this time Mode OFF Vapor and liquid line service valves should be fully closed 2 If the outdoor ambient temperature is between 65 F...

Page 9: ...e text line set and vapor line to choose line set length and vapor line diameter see Fig 17 and Fig 18 After complete press next to advance to next screen 12 If this is a new install i e the ODU is fa...

Page 10: ...ice and without obligations 10 A200035 Fig 17 Select Line Set Length Vapor Line Diameter A200036 Fig 18 Adjust Line Set Length Vapor Line Diameter that is Installed A200037 Fig 19 Charging Mode Select...

Page 11: ...or and outdoor unit prior to servicing unit A200040 Fig 22 Pump Down Setup Screen A200041 Fig 23 Pump Down Status Screen Evacuation and Recovery of Refrigerant from within 24VNA6 Because the 5 ton uni...

Page 12: ...he user interface UI displays the operation mode and fault codes as specified in the troubleshooting section See Table 7 for codes and definitions NOTE Only one code will be displayed on the outdoor u...

Page 13: ...any time specifications and designs without notice and without obligations 13 A200049 Fig 26 Variable Speed Control Board with optional Utility Relay A200044 Fig 27 Primary Control Board Status LED Ye...

Page 14: ...an air cooled device that communicates with the PCM and drives the compressor to the demanded RPM The VFD provides DC voltage to the fan motor and sends a fan RPM signal to the electronics on the fan...

Page 15: ...temporarily Pressure Switch Protection The outdoor unit is equipped with high pressure switch If this switch opens the VFD will lose line power and the compressor and fan motor will not operate The hi...

Page 16: ...ting Locations Failed Thermistor Default Operation Factory defaults have been provided in the event of failure of outdoor air thermistor OAT and or outdoor coil thermistor OCT If the OAT sensor should...

Page 17: ...lash and first long flash is 1 0 second Time between code repeating is 2 5 seconds with LED OFF Codes are easily read from user interface UI or the 5x7 LED display on the PCM EXAMPLE 3 short flashes f...

Page 18: ...ommon C COM Humidify HUM Outdoor Air Temp OAT Remote Room Sensor RRS OAT RRS Com SRTN Outdoor Sensor Humidifier Solenoid Valve Remote Room Sensor Y1 J1 Jumper on Control Board Jumper Wire Required for...

Page 19: ...High Temperature Limit 35 11 58 Compressor High Compression Limit 36 15 55 Compressor Low Compression Limit 38 13 53 Compressor Starting Error 54 Compressor No Pump 18 High Differential Pressure Start...

Page 20: ...pressor Underspeed Shutdown 84 11 58 VFD Heat Sink Overtemp Shutdown 85 13 53 DC Under Voltage Shutdown 14 54 DC Over Voltage Shutdown 86 06 46 VFD Communication Error 87 13 53 VFD Initialization Erro...

Page 21: ...8 71 VFD Estimator Malfunction 4 hours 39 53 Fan Start Malfunction 4 hours 39 55 Unexpected Fan Shutdown Malfunction 4 hours 39 58 Fan Motor Malfunction 4 hours 53 41 OST Open Low Temp Duration of Eve...

Page 22: ...nal residential HVAC training resources that help strengthen careers and businesses We believe in providing high quality learning experiences both online and in the classroom Access My Learning Center...

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