Daikin R410A Split Series Installation Manual download pdf (Page 18)

■English 16

Test run and final check

1) To test cooling, set for the lowest temperature. To test heating, set for the highest temperature. (Depending on the room

temperature, only heating or cooling (but not both) may be possible.)

2) After the unit is stopped, it will not start again (heating or cooling) for approximately 3 minutes.

3) During the test run, first check the operation of each unit individually. Then also check the simultaneous operation of

all indoor units.

Check both heating and cooling operation.

4) After running the unit for approximately 20 minutes, measure the temperatures at the indoor unit inlet and outlet. If the

measurements are above the values shown in the table below, then they are normal.

(When running in one room)

5) During cooling operation, frost may form on the gas shut-off valve or other parts. This is normal.

6) Operate the indoor units in accordance with the included operation manual. Check that they operate normally.

Items to check

■

ATTENTION

1) Have the customer actually operate the unit while looking at the manual included with the indoor unit. Instruct the customer

how to operate the unit correctly (particularly cleaning of the air filters, operation procedures, and temperature adjustment).

2) Even when the air conditioner is not operating, it consumes some electric power. If the customer is not going to use the unit

soon after it is installed, turn OFF the breaker to avoid wasting electricity.

3) If additional refrigerant has been charged because of long piping, list the amount added on the nameplate on the reverse side

of the shut-off valve cover.

Cooling Heating

Temperature difference

between inlet and outlet

Approx. 8°C Approx. 20°C

Check item Consequences of trouble Check

Are the indoor units installed securely? Falling, vibration, noise

Has an inspection been made to check for gas leakage? No cooling, no heating

Has complete thermal insulation been done (gas pipes, liquid

pipes, indoor portions of the drain hose extension)?

Water leakage

Is the drainage secure? Water leakage

Are the ground wire connections secure? Danger in the event of a ground fault

Are the electric wires connected correctly? No cooling, no heating

Is the wiring in accordance with the specifications? Operation failure, burning

Are the inlets/outlets of the indoor and outdoor units free of any

obstructions? Are the shut-off valves open?

No cooling, no heating

Do the marks match (room A, room B) on the wiring and piping

for each indoor unit?

No cooling, no heating

Is the priority room setting set for 2 or more rooms?

The priority room setting will not func-

tion.

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Daikin R410A Split Series Installation Manual Page 18

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