Hitachi PC-ARF Technical Catalogue page 155

4 Individual remote controls
PC-ART
All fresh mode (Econofresh)
This function is able to open the outdoor air damper.
The setting condition is showing below.
Setting Condition All fresh control
00 Not available
01 Available
02 Available
E2 Increasing Air Supply Volume (KPI) / Enthalpy Sensor (Econofresh)
Increasing Air Supply Volume (KPI)
This function is used to increase the supply air volume with the one-step high tap of the fan motor for supply air during
operation of the total heat exchanger, make the room pressure higher than the surrounded room with the increased sup-
ply air volume and prevent the polluted air and smell from entering into the room.
The setting air flow mode by remote control switch and the actual air flow of the total heat exchanger when setting this
function are as shown below.
Setting Air Flow Mode by Remote Control Switch
Enthalpy Sensor (Econofresh)
This function is used to set the enthalpy sensor input.
The setting condition is showing next
Setting Condition
00
01
N O T E
In case that the setting air flow mode by the remote control switch is "HIGH", the air flow of the total heat exchanger is "HIGH" even when this function is set.
E3 Not Prepared
E4 Pre-cooling and Pre-heating Period (KPI) / Gas sensor (Econofresh)
Pre-cooling and Pre-heating Period (KPI)
This function is used to delay the start-up of the total heat exchanger operation. The setting condition and the delaying
period of operation start-up are as shown below.
Setting Condition
Gas sensor (Econofresh)
This function is used to set the gas sensor input.
The setting condition is showing below
Setting Condition
00
01
02
E5 Not Prepared
139
TCGB0106 rev.0 - 12/2014
LOW
MED
HIGH
Enthalpy Sensor
Not available
Available
Delaying Period of Operation Start-Up
00
01
02
Gas Sensor
Not available
Available
Available
Contents of parts
The outdoor damper is fully closed.
The outdoor damper is fully open.
The outdoor damper is fully open.
Air Flow of Total Heat Exchanger
MED
HIGH
HIGH
Contents of parts
The enthalpy sensor is not available
The enthalpy sensor is available
0 minutes
30 minutes
60 minutes
Contents of parts
The gas sensor input is not available
The gas sensor input is available
The gas sensor input is available
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