8 _ Heat pump 50Hz/R410A
Part 1 General information
4. Combination
Indoor units selection
Look up the table on combination of indoor and outdoor unit, and determine the appropriate indoor unit capacity
which satisfies the given thermal load.
For proper system operation, refer to the following:
1) At least 2 indoor units should be connected to outdoor unit.
2) Total capacity of indoor units connected should be minimum 40% of outdoor unit rated capacity.
3) Calculation method for the connectable total capacity of indoor unit sum up the capacity of indoor unit, but
high static duct type indoor unit capacity weights 1.3 times.
Indoor Unit
Model Name
-05G- -07G- -09G- -12G- -18G- -24G-
Capacity Index
(kBtu/h)
5 7 9 12 18 24
(3 phase)
Model name
13.5 14.1 16.7
11.2 14.0 15.5
12.5 16.0 17.4
Max. 7 units Max. 8 units Max. 9 units
54 63 73
A7UW42LFA0
[FM41AH U32]
A8UW48LFA0
[FM49AH U32]
A9UW56LFA0
[FM57AH U32]
Rated
capacity (kW)
Connectable
indoor units
Number of indoor units
Heating
Cooling
Maximum Total Capacity Index (kBtu/h)
Nominal Capacity(kW)
BD units selection (accessory)
Branch units selection(accessory)
PMBD3620 PMBD3630 PMBD3640
1~2 units 1~3 units 1~4 units
5~24 5~24 5~24
BD Unit
Number of Indoor Unit
Indoor Unit Capacity index (kBtu/h)
Connectable
indoor units
Y Branch Type
1 Not required
2 PMBL5620
3 PMBL1203F0
Connected number of
BD units
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