Daikin VRV III - Page 26

• VRV Systems • Network Solution
25
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5 Functions
5 - 2 Detailed Explanation of Functions
5 - 2 - 7 Power Proportional Distribution
(1) System Components
Option setting for use of many watthour meters (“Grouping of electric power port” to be specified) 18 units (Max.) of watt hour meter for one iPU (the
1st one) and 19 units (Max.) of that for each iPU among several iPUs (the 2nd or more one) can be connected. Therefore, when 4 units of iPU are
used, 75 units (Max.) of watthour meter can be connected. (It is not recommended to install many watthour meters.)
In this case, it is also allowed to specify the option of “Grouping of electric power port”.
Normally, it is not necessary to specify it. The system connection example is as shown below. For both Pattern 1 and Pattern 2, the calculation method,
if specified, is the same.
• Pattern 1: Three watthour meters to be connected to one iPU:
• Pattern 2: Two watthour meters to be used with two units of iPU:
Power Proportional Distribution
System Components
Power Proportional Distribution Function
Setting of the period with no electric energy distributing
Data Back-Up
Wh1
'
Wh2
'
Wh3
'
Power port No.1 system Power port No.2 system Power port No.3 system
Outdoor unit
power
Outdoor unit
power
Outdoor unit
power
iPU
Power port No.1 system
Tenant 1/2
Power port No.2 system
Tenant 3/4
Power port No.3 system
Tenant 5/6
Electric energy pulse signal unit
PC
Wh4
'
PC
Wh5
'
Power port No.1 system
Tenant 1/2
Power port No.2 system
Tenant 3/4
Outdoor unit
power
Outdoor unit
power
iPU
iPU
HUB