4
Introduction
Application Case 3: Two Pipes Heat Pump System.
IU changeover
Cooling/Heating
WM changeover
Cooling/Heating
High /Low pressure gas pipe
Liquid pipe
Total Capacity Ratio 50%~150%
Indoor Unit 50%~150%
Water Module 0%~60%
NOTE:
(1) The function setting of “H4” must be set to 2 on the
outdoor unit PCB.
(2) The function setting of “n3” must be set to correct value
equal to the quantity of water module connected on the
outdoor unit PCB.
For operation temperature range, please refer to page i.
The following indoor units can be combined with the outdoor unit.
Table.1.1 Indoor Unit Type List
Type Picture
Nominal Power (kBtu/h)
05 07 09 12 14 15 17 18 19 22 24 27 30 38 48 54
Ceiling
Ducted
Type(High
Static
Pressure)
Low-Height
Ceiling
Ducted Type
(DC)
4-Way
Cassette
Type
Mini 4-Way
Cassette
Type
Wall-Mounted
Type
: Available
● The number of connectable indoor units with the outdoor unit is as follows. Comply with the condition as follows when
installing the unit.
● A maximum total capacity of 150% and a minimum total capacity of 50% can be obtained by combination of the indoor
units when compared with the nominal outdoor unit capacity.
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