Daikin VRV III-S Technical Data Manual page 43

10 Explanations of Power Proportional Distribution
10 - 2 Count Accuracy
10 - 2 - 2The way to reduce errors
The error can't be reduced, yet this error is small and appears to be positive always, so it can generally get rid of troubles if excusing the reason
caused to tenants.
The way to reduce the error
As shown in the drawing below, when the relation between a wattmeter and indoor units are clear, "the setting to make grouping for power ports" should
be carried out at the test run of intelligent Manager. (The actual site job will be conducted by persons of service dept networks responsible for the test
run.)
Power supply
3 phase
Power supply
single phase
Hub
PC
To other iPU
The power input to iPU can be counted with the proportional division system based on the every input of
wattmeter. On the above example, watts at W1 and watts at W2 are shared by indoor units #1~#5 and indoor
units #6~#8, respectively. (Before the test run goes on, it is necessary to enter the exact power port No. on the address table.)
The above setting results in the followings:
=
W1 Count conclusive total for indoor unit #1~#5
=
Count conclusive total for indoor unit #6~#8
W2
(Except for the error at
42
•
will be described as follows.
W2
W1
iPU
). Furthermore, since iPU watt input has just 18 ports, additional divisional counting is no longer possible.
• VRV Systems • Network Solution
Outdoor unit
#1 #2 #3
Tenant A Tenant B
#4 #5 #6 #7
Tenant C
#8