Control System
EDMMT712101
44
VAM-HVE/HVLT Series
Operations by External Input
Purpose
•
Functions
Operates Heat Reclaim Ventilator Unit by external contact signal.
Note) If this function is used, the use of standard remote controller, interlocking with air conditioner, and control by centralized
equipment or external input terminal cannot be performed.
POINT
It is possible to stop operation, change the airflow rate (high/low) and change the ventilation mode only with an external contact
signal.
Setting the switch (SS1) on the printed circuit board to “H” or “M” switches to the contact control mode.
(Be sure to make this setting before turning on the power.)
Example of control wiring
J1
J3
SS1
J2
JC
P1 P2
Heat Reclaim Ventilator Unit
(Contact on site)
Contact on site
Functions
External contact
Operation
External contact specifications
Ventilation rate
changeover
(J1) (JC)
Open
Ultra high, High
• Non-voltage normally open
contact
• Microcurrent contact (Minimum
applicable load: DC12V, 1mA
or below)
Closed
Low
Start/Stop
(J2) (JC)
Open
Stop
Closed
Operation
Ventilation mode
changeover
(J3) (JC)
Open
Heat exchange mode
Closed
Bypass mode
Switch number that needs to be changed for the system
The settings of the switch (SS1) on the printed circuit board must be made before turning on the power.
SS1
NOR
←
The unit will not work properly in this position. (Factory default position)
H
←
Used to set the “High” fan speed to the ultra-high notch
M
←
Used to set the “High” fan speed to the high notch
Essential optional accessory
NIL.
Summary of Contents for VAM Series
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Page 4: ...EDMMT712101 2 Table of Contents 17 6 Precautions for Design and Installation 181 ...
Page 56: ...Control System EDMMT712101 54 VAM HVE HVLT Series C 3P343420 1E ...
Page 138: ...Installation Manual EDMMT712101 136 VAM HVE HVLT Series 3P607378 3C ...
Page 139: ...EDMMT712101 Installation Manual VAM HVE HVLT Series 137 3P607378 3C ...
Page 141: ...EDMMT712101 Installation Manual VAM HVE HVLT Series 139 C EM20A032 ...
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Page 147: ...EDMMT712101 Details of Optional Accessories VAM HVE HVLT Series 145 3P607378 3C ...
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Page 155: ...EDMMT712101 Details of Optional Accessories VAM HVE HVLT Series 153 4P457318 1D ...
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