McQuay MCI16036CCU216A, Technical Manual

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R410A 60Hz 16 SEER Universal Outdoor Series Technical Manual
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3. Additional Refrigerant Charge
Caution
● Refrigerant cannot be charged until field wiring has been completed.
● Refrigerant may only be charged after performing the leak test and the vacuum pumping.
● When charging a system, care shall be taken that its maximum permissible charge is never exceeded, in view
of the danger of liquid hammer.
● Charging with an unsuitable substance may cause explosions and accidents, so always ensure that the
appropriate refrigerant is charged.
● Refrigerant containers shall be opened slowly.
● Always use protective gloves and protect your eyes when charging refrigerant.
The outdoor unit is factory charged with refrigerant. Calculate the added refrigerant according to the diameter
and the length of the liquid side pipe of the outdoor unit/indoor unit
R(g) D(mm)
L(m)
φ6.35 Φ9.52 Φ12.7
Less than 5m (One-way)
— — —
Added Refrigerant When 20g/m×(L-5) 40g/m×(L-5) 60g/m×(L-5)