Technical data

96
• Control systems
• intelligent Touch Manager • ED721208
Design Precautions
Calculation Condition
3
1
2
VRV
Watthour meter (For VRV outdoor units)
Watthour meter (For VRV indoor units)
Group1
DIII-NET
Remote controller
group control
iTM
(1) Remote controller group ➀
Also in the indoor unit (sub-unit) with remote controller group, set the group address for correct electric energy distributing.
(The group address for sub-unit can be set in the site set mode “30” of the remote controller.
However, after setting with “30”, if set with “00”, the sub-unit address will be deleted.)
An imperfection in case collective distribution is done with main-unit running state without setting of group address at sub-unit
Even if the remote controller group control is done, each indoor unit has different thermostat state depending on its installation place.
Therefore, the distribution result will differ depending on the decision which indoor unit is to be as main unit.
(2) In case power consumption of indoor unit to be included ➁
It is necessary to connect the watthour meter to the power supply line of the indoor unit and input its pulse to iTM.
In this case, “included power of Fan” has to be set to “Yes” in the PPD setup tool.
(3) Calculation of electric power (Crankcase heater / PCB power consumption) at stopping ➂
1. In case of calculation for crankcase heater and PCB when not in operation.
(1) The electric power consumed by crankcase heater of the outdoor unit is divided by the capacity of each indoor unit.
Note: The calculation also includes the indoor units which are not in operation. (eg.vacant)
In this case, “included power during STOP” has to be set to “Yes” in the PPD setup tool.
2. In case of not calculating for crankcase heater and PCB when not in operation.
(1) It is possible to exclude the power consumed by crankcase heater and PCB.
Therefore the power will not be added to each indoor unit.
In this case, “included power during STOP” has to be set to “No” in the PPD setup tool.