Daikin REYQ46M7W1B [51/405] Reference material

Daikin RXY14MY1E [51/405] Reference material
2.1 Case Examples 47
ED721208 Power Proportional Distribution (PPD)
3
2. Reference Material
2.1 Case Examples
(1) A value on a wattmeter of each outdoor unit system does not correspond to PPD result.
Electric power of wattmeter A is nearly the same as that of wattmeters B + C + D.
However, the PPD result of outdoor unit system 1 (4 indoor units) does not correspond to the value on
wattmeter B.
[Reason]
An intersystem difference causes this problem.
The PPD function does not recognize how many outdoor units exist in an electric power group. It regards outdoor units
as one big unit to perform PPD calculation.
[Countermeasure]
If each outdoor unit system has a watthour meter, make a power group for each outdoor unit system.
A
Outdoor unit system 3
CB D
Outdoor unit system 2Outdoor unit system 1
iTM

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