4-46
OPTIONAL FUNCTION
(4.4 Remote Control Switch)
(26) Increasing Supply Air Volume (Total Heat Exchange Model)
This function is utilized 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 supply 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.
NOTE:
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.
(27) With Humidifier (Only Indication) (Total Heat Exchange Model)
This function is utilized to control the total heat exchanger with the humidifier. However, in case of
the total heat exchanger of SET-FREE, the humidifier is not attached. Do not set this function.
When this function is not set, the control of the humidifier is not performed.
(28) Precooling/Preheating Period (Total Heat Exchange Model)
This function is utilized 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.
(29) Not Prepared
(30) Automatic OFF Timer Setting
This function is utilized to set the OFF timer function automatically when the unit is started by the
remote control switch. During operation with the automatic OFF timer setting function, the
cancellation of the OFF timer and the changing of the setting period for OFF timer can not be
performed. However, the OFF timer function is canceled when the unit is stopped.
When the unit is operated again after stoppage, the setting period for OFF timer is the period set by
the optional setting.
The setting condition and the setting period for OFF timer are as shown below.
Air Flow of Total Heat Exchanger
MED
HIGH
HIGH
Setting Air Flow Mode by Remote Control Switch
LOW
MED
HIGH
Delaying Period of Operation Start-Up
0 minutes
30 minutes
60 minutes
Setting Condition
00
01
02
Setting Period for OFF Timer
Function Invalid
1 hour
2 hours
3 hours
~
22 hours
23 hours
24 hours
~
22
23
00
01
02
03
24
Setting Condition
NOTE:
This function is canceled when connecting with the CS-NET, and 7-day Timer, controlled by Remote
Control.
(31) Remote Control Main-Sub Setting
This function is utilized when two remote control switches are installted in one system.
Set one remote control switch to “Main”, another remote control switch to “Sub”.
