Chariot Carriers Merci Installation Manual download pdf (Page 39)

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76-EN75-EN

Steps taken to recover the refrigerant

1. Operate the indoor unit in the fan mode.

2. Check that the LED displays are placed in their initial status. If not, place them in the initial status.

3. Hold down SW01 for at least 5 seconds, and check that D804 flashes slowly. (Fig. 1)

4. Press SW01 once to set the LED displays (D800 to D805) to the “refrigerant recovery LED display” shown below.

(Fig. 2)

(Fig. 1)

: ON, : OFF, : Slow flashing

(Fig. 2)

: ON, : OFF, : Rapid flashing

5. Press SW02 to set D805 to rapid flashing. (Each time SW02 is pressed, D805 is switched between rapid flashing

and OFF.) (Fig. 3)

6. Hold down SW02 for at least 5 seconds, and when D804 flashes slowly and D805 lights, the forced cooling

operation is started.

(Max. 10 minutes) (Fig. 4)

(Fig. 3)

: ON, : OFF, : Rapid flashing

(Fig. 4)

: ON, : OFF, : Slow flashing

7. After operating the system for at least 3 minutes, close the valve on the liquid side.

8. After the refrigerant has been recovered, close the valve on the gas side.

9. Hold down SW01 and SW02 simultaneously for at least 5 seconds. The LED displays are returned to the initial

status, and the cooling operation and indoor fan operation stop.

10. Turn off the power.

* If there is any reason to doubt whether the recovery was successful in the course of this operation, hold down

SW01 and SW02 simult

aneously for at least 5 seconds to return to the initial status, and then repeat the steps

for recovering the refrigerant.

LED displays indicated when step 3 is taken

D800 D801 D802 D803 D804 D805

Refrigerant recovery LED display

D800 D801 D802 D803 D804 D805

LED displays indicated when step 5 is taken

D800 D801 D802 D803 D804 D805

LED displays indicated when step 6 is taken

D800 D801 D802 D803 D804 D805

Existing piping

The following settings are required when using a pipe Ø19.1 mm as the existing piping at the gas pipe side.

Steps taken to support existing piping

1. Set the circuit breaker to the ON position to turn on the power.

2. Check that the LED displays are placed in their initial status. If not, place them in the initial status.

3. Hold down SW01 for at least 5 seconds, and check that D804 flashes slowly. (Fig. 5)

4. Press SW01 four times to set the LED displays (D800 to D805) to the “LED displays for existing piping settings”

shown below. (Fig. 6)

(Fig. 5)

: ON, : OFF, : Slow flashing

(Fig. 6)

: ON, : OFF, : Rapid flashing

5. Press SW02 to set D805 to rapid flashing. (Each time SW02 is pressed, D805 is switched between rapid flashing

and OFF.) (Fig. 7)

6. Hold down SW0

2 for at least 5 seconds, and check that D804 flashes slowly and that D805 lights. (Fig. 8)

(Fig. 7)

: ON, : OFF, : Rapid flashing

(Fig. 8)

: ON, : OFF, : Slow flashing

7. Hold down SW01 and SW02 simultaneously for at least 5 seconds to return the LED displays to the initial status.

The existing piping is now supported by taking the above steps. In this status, the heating capacity may decrease

during heating depending on the outside air temperature and indoor temperature.

* If there is any reason to doubt whether establishing support was successful in the course of this operation,

hold

down SW01 and SW02 simultaneously for at least 5 seconds to return to the initial status, and then repeat the

setting steps.

LED displays indicated when step 3 is taken

D800 D801 D802 D803 D804 D805

LED displays for existing piping settings

D800 D801 D802 D803 D804 D805

LED displays indicated when step 5 is taken

D800 D801 D802 D803 D804 D805

LED displays indicated when step 6 is taken

D800 D801 D802 D803 D804 D805

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Chariot Carriers Merci Installation Manual Page 39

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