Outdoor Air Processing Of Ceiling Mounted Duct; Connection Type; Outdoor Air Processing Of Ceiling Mounted Duct Connection Type; Stand-Alone Operation Is Possible As An Independent System - Daikin VAM-FA8VE Technical Data Manual

• HRV • VKM-GA(M)V1

10 Outdoor Air Processing of Ceiling Mounted Duct

Connection Type

The structure of VKM-GAMV1 model is different from other ventilation models. Points you need to note are
summarized below, which please use for your reference when selecting the model.

10.1 Stand-alone Operation is Possible as an Independent System

Because no function to control the room temperature is equipped, only the operation mode (cooling,
heating, automatic, ventilation) is displayed on the remote controller. Set temperature is not displayed.
(Automatic mode is displayed only when connected with outdoor unit of cooling/heating free type.)
In addition, you cannot change the set temperature or set direction of air flow.
Even if you attempt to operate by changing the temperature or air flow direction, only [This function is not
available] will be displayed.
You can select the ventilation mode, ventilation amount and operation switching (if a function to select
either cooling or heating has been provided) only.

10.2 Ability to Calculate Connectable Capacity

Because of an outdoor air processor, the load may increase depending on the outdoor air condition. So,
use the values in the table below when calculating the connectable capacity to an outdoor unit.
Ceiling mounted
duct connection type
VKM50GA(M)V1
VKM80GA(M)V1
VKM100GA(M)V1
Example of a system
Similar to R-407C Model, but following points are to be noted ;
[Features of VKM-GA(M)]
Because VKM-GA(M) model is equipped with a heat exchanger unit, a PC-board (corresponding multiple
type for building PC-board) for controlling the heat exchanger has been built-in in addition to a P-board for
ventilation. These two PC-boards are connected via remote controller line (P1 P2) to perform an
interlocked control. Its control system provides the same condition when 1 ventilation and 1 multiple type
for building have been remotely controlled. No air-conditioning (temperature controlling) function has been
equipped. Therefore, it is necessary to prepare separately an indoor unit for air-conditioning purpose.
BRC1A62
(BRC1D527)
remote controller
for air-conditioner
Independent system
BRC1D527
(Connection to ventilation remote
controller is not permitted.)
Corresponding
HP
1.0
1.6
2.0
RXYQ10PY1
VKM100GAMV1 × 1 unit
Heat
Element of
exchanger
total heat
unit
exchanger
Corresponding multiple
type for building P-board
P-board for ventilation
P1 P2 P1 P2
An image sketch of VKM-GA(M)
• HRV • Heat Reclaim Ventilation
Switching of ventilation
Heating
mode and ventilation
Total heat ventilation
amount
Ventilation mode
Ventilation
amount
Ability to process outdoor air (kW) Ability to calculate
Cooling Heating
4.71 (1.91) 5.58 (2.38)
7.46 (2.96) 8.79 (3.79)
9.12 (3.52) 10.69 (4.39)
( ) indicates a heat amount recovered by a total heat exchanger.
Connectable capacity of RXYQ10PY1 : 14.0 - 36.4 (kW)
Total calculated capacity of indoor unit : 7.0 + 7.0 × 4 = 35.0 (kW)
Therefore, no more capacity than this is connectable.
P71 × 4 units Indoor unit
Equivalent
A group of 1 ventilation/1 multiple type for building indoor unit
Ventilation
amount
Strong
Switching of
operation mode
Operation
switching
Diameter of
connectable
connection pipe
capacity (kW)
3.5
φ6.4 for liquid
5.6
φ12.7 for gas
7.0
2
10
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