37MGHAQ: Installation Instructions
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
9
For releasable charge limited system:
SAFETY SHUT-OFF VALVES are used in some multiple outdoor units,
as shown in the following table, for the purposes of limiting the releasable
charge, which are activated by a leak detection system.
Releasable charge (m
rel
) of system should be calculated based on internal
volume of all indoor units and connecting pipes. Each indoor units
correspond to a releasable charge as following table, add them up based
on the combination of indoor units, and then add to the basic releasable
charge of 7.2oz (0.45kg), you will get the total releasable charge of
system.
NOTE: The calculation is based on the standard connection pipe
length of 24.6ft/7.5m for each indoor units, an extra
releasable charge should be added for per meter exceeding
24.6ft/7.5m.
Table 2 — Models - Indoor Units — Releasable Charge
PERSONAL INJURY AND PROPERTY DAMAGE HAZARD
SAFETY SHUT-OFF VALVES default to fully closed position when the
appliance is de-energized, so refrigerant will not be completely released
even when it was dismantled. Ensure the complete release of refrigerant
through one of following methods before repairing the machine.
• Method 1: Release refrigerant while the machine is powered on.
• Method 2: Manually open the safety shut-off valve using a magnetic
ring.
WARNING
IDU TYPE IDU MODEL
RELEASABLE
CHARGE, OZ (G)
IDU TYPE IDU MODEL
RELEASABLE
CHARGE (G)
High Wall
45MPHAQ06XA3 16.3 (463)
Ducted
45MBDAQ06XA3 12.3 (350)
45MPHAQ09XA3 16.3 (463) 45MBDAQ12XA3 12.3 (350)
45MPHAQ12XA3 16.3 (463) 45MBDAQ18XA3 17.3 (491)
45MPHAQ18XA3 27.8 (789)
High Static
Ducted
45MBDAQ12XH3 11.5 (325)
High Wall
Performance
45MAHAQ06XA3 13.9 (394) 45MBDAQ18XH3 15.8 (448)
45MAHAQ09XA3 13.9 (394) 45MBDAQ24XH3 24.1 (684)
45MAHAQ12XA3 13.9 (394)
Console
45MBFAQ09XA3 14.2 (403)
45MAHAQ18XA3 17 (482) 45MBFAQ12XA3 14.2 (403)
45MAHAQ24XA3 36.2 (1025) 45MBFAQ16XA3 14.9 (423)
45MAHAQ30XA3 36.2 (1025) 45MCFAQ18XA3 16 (455)
45MAHAQ33XA3 36.2 (1025) 45MCFAQ24XA3 29.5 (836)
45MAHAQ36XA3 36.2 (1025)
Air Handler
45MBAAQ18XB3 24.2 (685)
Cassette
45MBCAQ12XA3 17.4 (494) 45MBAAQ24XB3 32.5 (921)
45MBCAQ18XA3 18.1 (513) 45MBAAQ30XB3 47.8 (1355)
45MBCAQ24XA3 29.6 (838) 45MBAAQ36XB3 47.8 (1355)
1 way cassette
45MCCAQ06XA3 16.6 (470)
45MCCAQ12XA3 16.6 (470)
45MCCAQ18XA3 16.9 (490)
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