Carrier Variable Speed Certification Survey

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* 2. Questions 3-12 relate to GENERAL Carrier equipment and general refrigeration principles. Do you understand?

Yes

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* 3. Long line accessories are required when equivalent line length exceeds how many feet?

200

250

100

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* 4. Factory condensing units come charged for how many equivalent feet of lineset

0 ft

15 ft

25 ft

250 ft

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* 5. When installing a Heat Pump, the filter drier must be

Valved off

Unidirectional

Biflow

Turned upside down

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* 6. When installing a Liquid Line Solenoid Valve for a Heat Pump, the solenoid

Mounts within 2 ft of the outdoor unit

Mounts at the Indoor Coil

Must be a smaller pipe size

Must be a larger pipe size

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* 7. EXVs are what?

Not important

Another way of saying solenoid

Another way of saying TXV

Motor driven metering devices

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* 8. To charge by subcooling, outdoor ambient temperatures must be

Below 0

Between 65 and 105

At 0

Less than 65 or greater than 105

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* 9. To charge by subcooling, the indoor ambient temperatures must be

Between 65 and 80

At 0

Below 0

Room temperature

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* 10. If temperatures are inadequate for charging by subcooling

You can let the system run regardless of charge

You should charge by lineset length and return when temperatures are adequate

You cannot run or add refrigerant to the equipment at all

You must cover the equipment until you return

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* 11. If you were choosing to size a unit to the heating load or to the cooling load, what else must you consider

Only the Manual J calculation for the home

How much money the customer wants to spend on accessories

The ductwork limitations

How many people live in the house

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* 12. Additional refrigerant charge is listed as

1 extra pound per 10 ft

Simply based on superheat

0.6 oz/ft, but should be double checked

Simply based on subcooling

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* 13. Questions 14-23 pertain to current Infinity Systems, do you understand

Yes

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* 14. Communication wire from the air source to the outdoor unit uses

A, B, C, D

B, D

C, D

A, B, and sometimes C

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* 15. The manuals will tell you to wait 10 minutes after power down before handling the circuitry, why?

Since AC voltage flows both ways on a wire, you have to wait for the opposite direction to flow out

Not all disconnects work correctly and powering down for 10 minutes will trip a breaker if something is wrong

You don't, the factory is just making rules

The AC voltage charges capacitors at a higher voltage than your meter reads at the incoming lugs. So the capacitors need time to drain

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* 16. The PEV does what?

Prevent the system from running when the pressures are equal

Keep refrigerant pressures isolated from low to high sides

Equalizes the pressures from the low and high sides

Soft start the compressor

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* 17. The purpose of Check Out Mode is to

Establish communication to the whole system

Lock the system permanently into modes so others may be disabled

Briefly run all components to observe operation in requested modes

Establish communication between the indoor and outdoor units

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* 18. Altitude adjustments are located in which Setup control menu

In the Scheduling Menu

In the Advanced Setup Menu, sub menu AC/HP

In the Advanced Setup Menu, sub menu Furnace

In the Advanced Setup Menu, sub menu System Control

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* 19. When testing resistances of ECM or Inverter driven motor windings, you want to see what?

3 equal resistances

Less than 18k ohms

C-S plus C-R equals R-S

Exactly the ohm values listed in the manuals

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* 20. If a circuit board gets changed in a fully communicating system, you must (select all that apply)

Put the old board in another piece of equipment

Make a return visit to recalibrate the system

Complete a Full Installation through the Infinity/Evolution controller

Move the model plug to the new board

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* 21. Completing the Full Installation through the controller is an advisable course of action during many control related service calls

True

False

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* 22. If you used Check Out Mode to enable Heat Pump Heating and outside temps are over the max heating OAT, will the unit run?

Yes

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* 23. Pump down is a feature in the Infinity Control that is required, if pump down operation is desired

True

False

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* 24. Questions 25-39 pertain to the 5 stage VNA9/8 models, do you understand

Yes

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* 25. Max equivalent line length allowed is

50 ft

250 ft

100 ft

200 ft

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* 26. Long Line accessories are required at what equivalent length

No Long Line Accessories are required

200 ft

80 ft

100 ft

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* 27. This product is qualified for Low Ambient Cooling

True

False

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* 28. Minimum outdoor temp for heating is

-15

-22

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* 29. What type of compressor is used in this equipment

Rotary

Reciprocating

Semi Hermetic

Scroll

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* 30. If controlled by a conventional thermostat, the minimum outdoor temp for cooling is

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* 31. If controlled by an Infinity control, the minimum outdoor temp for cooling is

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* 32. Maximum outdoor heating temperature is

125

115

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* 33. The control panel consists of (select all that apply)

Disconnect fuses

The AOC (communicating board)

The Inverter (VFD)

Contactors

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* 34. These units contain a Discharge Temperature thermistor

True

False

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* 35. These units contain a Discharge Pressure Transducer

True

False

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* 36. The crankcase heater is a replaceable component

True

False

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* 37. All codes will always blink on the AOC board

True

False

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* 38. The SEER rating of this equipment is

Not listed

19 for AC only and 18 for Heat Pump

22 for AC only and 20 for Heat Pump

Varies on location

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* 39. This equipment can calculate Superheat and Subcooling

True

False

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* 40. Questions 41-55 pertain to the Fully Modulating VNA6/4, do you understand?

Yes

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* 41. Can this equipment be ran permanently with a conventional thermostat?

Yes

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* 42. This equipment has a Discharge Temperature Thermistor

True

False

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* 43. This equipment has a Discharge Pressure Transducer

True

False

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* 44. This equipment only comes with a Rotary Compressor

True

False

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* 45. One difference between the 5 ton and other sizes is

You must wire it backwards

It has a Braze Plate Heat Exchanger

The condenser fan is a different design

The noise is reduced

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* 46. What are the lineset length rules (select all that apply)

Liquid Line Service Valve on Heat Pumps for long line

Max Actual Length of 200 ft

Long Line Accessories required after 80 ft

Max Equivalent Length of 250 ft

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* 47. What is the SEER rating of the equipment

26 for AC only and 24 for Heat Pump

19 for AC only and 18 for Heat Pump

18 for AC only and 19 for Heat Pump

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* 48. The Bluetooth module (select all that apply)

Can only be accessed by Carrier/Bryant Dealers

Can observe operation of the equipment

Can update firmware for the outdoor board

Can change settings

Can show recent faults

Can be accessed by anyone

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* 49. How many digits are the Alert Codes

There are no digits, only descriptions

4 digits; a 2 digit Base Code and a 2 digit Malfunction or Fault code

2 digits based on blinking lights

3 digits

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* 50. Minimum outdoor temp for heating is

-22

-15

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* 51. The Maximum outdoor temp in heating is

125

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* 52. The Maximum outdoor temp in cooling is

125

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* 53. This product is qualified for Low Ambient Cooling

True

False

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* 54. The control box consist of (select all that apply)

Reactor(s)

Bluetooth Module

VFD

Noise Filter Board

PCM (Primary Control Module)

Carrier Variable Speed Certification

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* 1. Register

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* 2. Questions 3-12 relate to GENERAL Carrier equipment and general refrigeration principles. Do you understand?

Question Title

* 3. Long line accessories are required when equivalent line length exceeds how many feet?

Question Title

* 4. Factory condensing units come charged for how many equivalent feet of lineset

Question Title

* 5. When installing a Heat Pump, the filter drier must be

Question Title

* 6. When installing a Liquid Line Solenoid Valve for a Heat Pump, the solenoid

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* 7. EXVs are what?

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* 8. To charge by subcooling, outdoor ambient temperatures must be

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* 9. To charge by subcooling, the indoor ambient temperatures must be

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* 10. If temperatures are inadequate for charging by subcooling

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* 11. If you were choosing to size a unit to the heating load or to the cooling load, what else must you consider

Question Title

* 12. Additional refrigerant charge is listed as

Question Title

* 13. Questions 14-23 pertain to current Infinity Systems, do you understand

Question Title

* 14. Communication wire from the air source to the outdoor unit uses

Question Title

* 15. The manuals will tell you to wait 10 minutes after power down before handling the circuitry, why?

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* 16. The PEV does what?

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* 17. The purpose of Check Out Mode is to

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* 18. Altitude adjustments are located in which Setup control menu

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* 19. When testing resistances of ECM or Inverter driven motor windings, you want to see what?

Question Title

* 20. If a circuit board gets changed in a fully communicating system, you must (select all that apply)

Question Title

* 21. Completing the Full Installation through the controller is an advisable course of action during many control related service calls

Question Title

* 22. If you used Check Out Mode to enable Heat Pump Heating and outside temps are over the max heating OAT, will the unit run?

Question Title

* 23. Pump down is a feature in the Infinity Control that is required, if pump down operation is desired

Question Title

* 24. Questions 25-39 pertain to the 5 stage VNA9/8 models, do you understand

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* 25. Max equivalent line length allowed is

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* 26. Long Line accessories are required at what equivalent length

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* 27. This product is qualified for Low Ambient Cooling

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* 28. Minimum outdoor temp for heating is

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* 29. What type of compressor is used in this equipment

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* 30. If controlled by a conventional thermostat, the minimum outdoor temp for cooling is

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* 31. If controlled by an Infinity control, the minimum outdoor temp for cooling is

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* 32. Maximum outdoor heating temperature is

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* 33. The control panel consists of (select all that apply)

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* 34. These units contain a Discharge Temperature thermistor

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* 35. These units contain a Discharge Pressure Transducer

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* 36. The crankcase heater is a replaceable component

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* 37. All codes will always blink on the AOC board

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* 38. The SEER rating of this equipment is

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* 39. This equipment can calculate Superheat and Subcooling

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