• Heat reclaim ventilation • VAM-FA/FB
1
9
• Ventilation • Heat reclaim ventilation
24
9
Wiring diagrams
9 - 1 Wiring Diagrams - Single Phase
VAM350-650FB
3D080682A
NOTES
1
In case you use the central remote control, connect it to the unit in accordance with the attached manual.
2
When connecting the input wires from outside, fresh-up or on/off control operation can be selected. (Contact with a minimum applicable load of 12V DC, 1mA)
3
For details of connection see the attached manual of the option kit.
4
SS1 (A1P) has already been set to “nor.” at factory set. The unit will not run if the setting is changed.
1 Do not open the EL. Compo. box cover for 10 minutes
after the power supply is turned off.
2 After opening the EL. Compo. box, measure the points
shown at the right with a tester and confirm that the
voltage of the capacitor in the main circuit is less than
DC50V
A1P
Printed circuit board
Q1DI
Field earth leak detector
(Max. 300 mA)
REMOTE CONTROL
C1
Capacitor (M1F)
SS1
Selector switch
F1U
Fuse T, 6.3A, 250V (A1P)
R1T
Thermistor (Indoor air)
CONNECTOR FOR OPTION (See note 3)
F1U
Fuse T, 5A, 250V (A1P)
R2T
Thermistor (Outdoor air)
X14A
Connector (CO
2
sensor)
HAP
Pilot lamp (Service monitor - green)
R3T
Thermistor (PTC)
X24A
Connector (Outside damper)
K1R
Magnetic relay
S1C
Limit switch damper motor
X26A
Connector (Filter sign)
K2R
Magnetic relay
X1M
Terminal (A1P)
X33A
Connector (Contact PCB)
L1R
Reactor
X2M
Terminal (Outside input) (A1P)
X35A
Connector (Appendices PCB)
M1F
Motor (Supply air fan)
X3M
Terminal (Power supply)
X38A
Connector (Multi tenant)
M2F
Motor (Exhaust air fan)
V1R
Diode bridge
X41A
Connector (Humidity sensor 1)
M1D
Motor (Damper)
Z1F
Noise filter
X42A
Connector (Humidity sensor 2)
PS
Switching power supply (A1P)
: Live
: Connection
Colors:
Black
White
: Neutral
: Relay connector
Blue
Yellow
: Field wiring
: Protective earth (screw)
Orange
Green
: Terminal strip
: Noiseless earth
Red
: Connector
Printed circuit board
See note 1
Control box
Wired remote control
(opt. accessory)
Indoor
220-240V/220V
~
50/60Hz
Measuring points
for voltage
Caution when performing service
inside the EL. Compo. box
WARNING
Caution for ELECTRIC SHOCK