2024 Ductless Service Training Day 2 Test

No matter where you read the current fault code (indoor, outdoor or wall control) the fault code will always be the same?

Some fault codes may be indicated by flashing LED’s on the indoor or outdoor boards?

To properly charge a unit you must know the __________.

The 601, 701 and 801 controls are

A 24 volt interface is used _______________

A wireless control is used for __________________

The new service codes are _______________

The second digit of the Error code shows ____________

A function code will

The most common fault on start up is ________________

Standard wiring between the indoor and the outdoor is ________.

If there is high electromagnetic interference (EMF) causing communication issues you should

If you need to splice the communication wires you may

Communication is carried on which wires?

An external drain safety should break?

Communication voltage is?

Induced current on the S (3) wire is due to?

Which indoor units have a display board?

Ductless outdoor units have

Static pressure can be set on the _____________

Anti cold air function is to _______________

As shipped from the factory, in cool mode the indoor fan in auto selection

All of the outdoor units have

On the 24 volt interface a code reading 20 means_______.

The term ductless system means

The Debugger tool can be used to ramp the compressor up and down when attached to the outdoor unit?

The debugger tool can be used to simulate the indoor or outdoor unit to verify communication faults?

The The Debugger tool connects to

With the Debugger tool do you need an indoor unit connected to operate the outdoor unit?

Induced voltage on the S wire as low as 6 volts can interfere with communication.

The most frustrating codes to diagnose are

The speed of the compressor is controlled by

Multi-head ductless ________________

Using the wireless remote in the service menu you can program the blower from running continuously during the off cycle in cool mode

With the ducted unit it is preferred to set static pressure by

Using the System Enquiry function from the Multi-zone outdoor unit you can tell if you have your communication wiring matched to the correct piping?

On a 1-1 indoor coil freeze up fault is the same as refrigerant leak detection?

On a multi-zone any unit not calling will close its EEV

When the unit is in protection mode, the unit will ___________.

Compressor discharge protection starts at

High compressor discharge temperature is most likely caused by

The condenser fan speed is controlled by the

If the compressor temperature is between 215 and 229 degrees the compressor will

Where would you install a liquid line filter drier in a ductless system?

The Check Point function on a multi-head

On a multi-head outdoor unit the display normally

When using the check point function you can see

When using the check point function you can see

Using the check point function what would be the most useful point to check?

When using the Debugger Tool you