Daikin FDMG180AV1 [43/51] Maximum allowable piping length and level difference

Field Piping ED40-437

42 FDMG-AV1(S) Series

14.Field Piping

14.1 Field Piping

14.1.1 Maximum Allowable Piping Length and Level Difference

14.1.2 Additional Refrigerant Charge

y This unit requires additional charging of refrigerant according to the length of pipe connected at the site.

The range where no charging is required. (RG71A, R100FU · 125FU, RG140A · 180A : 5 m or less.)

Take the following steps for proper charging.

y Select the amount of refrigerant which matches a length which exceeds the charge-less length from

Table 1

and 2, and add it.

Write down the amount of extra refrigerant added in accordance with the precaution plate on the rear

surface of the front plate, as this is necessary for after-sales service.

 RG71A, R100FU · 125FU

 RG140A

· 180A

Table 2 Additional charging refrigerant amount

y Contact your DAIKIN dealer when installing the unit using pipes of 3 m or less.

14.1.3 Recharging Refrigerant

 RG71A, R100FU · 125FU, RG140A · 180A

When the entire refrigerant pipe length is within 5 meters, charge the refrigerant in accordance with the

amount mentioned on the nameplate, and when the pipe length exceeds 5 meters, the charging amount is

an addition of the amount stated on the nameplate and the additional charging amount.

1PN06338-1-1

1PN01324-1A-1

3PN06106-3C-1

RG71A, R100FU · 125FU, RG140A · 180A

Max. Allowable Piping Length 50 m (Equivalent Length 70 m)

Max. Allowable Level Difference 30 m

When connected to indoor unit

Table 1 (The maximum allowable pipe length is 50 meters.)

Length of Pipe Connected (L) 5m 10m 15m 20m 25m 30m 35m 40m 45m 50m

Additional Charging Amount — 0.13 0.25 0.38 0.50 0.63 0.75 0.88 1.00 1.13

Additional charging

refrigerant amount

Piping

length (L)

= — 5m 0.025 kg/m