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HEATPUMP

Indoor Outdoor Liquid Pipe Gas Pipe CFM

Refrigerant Charge

(kg/7.5m pipe length)

MDB075BR MMC075CR 1/2" 1" 2500 4.6

MDB100BR MMC100BR 5/8" 1-1/8" 3200 5.6

MDB125CR MMC125BR 5/8" 1-1/4" 4200 6.5

MDB150BR2 MMC075CR x 2 1/2" 1" 4600 4.6 x 2

MDB200BR2 MMC100BR x 2 5/8" 1-1/8" 6400 5.6 x 2

MDB250BR2 MMC125BR x 2 5/8" 1-1/4" 8000 6.5 x 2

MDB300BR3 MMC100BR x 3 5/8" 1-1/8" 9000 5.6 x 3

MDB350BR3 MMC100BR + MMC125BR x 2 5/8" 1-1/8" & 1-1/4" 10500 5.6 + 6.5 x 2

MDB400BR4 MMC100BR x 4 5/8" 1-1/8" 12000 5.6 x 4

MDB500BR4 MMC125BR x 4 5/8" 1-1/4" 15000 6.5 x 4

Remark:

With Scroll compressor and bi-flow TXV at the outdoor unit specification.

ADDITIONAL CHARGE

Based on liquid pipe size per meter length:

Liquid Pipe Size, inch Additional Charge, kg/meter

1/4” 0.02

5/16” 0.04

3/8” 0.05

1/2” 0.10

5/8” 0.17

3/4” 0.26

7/8” 0.37

Note: Refer to the table of the Recommended Maximum Pipe Length.

McQuay MMC075C User Manual

Questions and Answers: