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9
• Ventilation • Heat reclaim ventilation
23
• Heat reclaim ventilation • VAM-FA/FB
9
Wiring diagrams
9 - 1 Wiring Diagrams - Single Phase
9$0)$
2TW24836-1C
Before obtaining access to terminal devices, all power supply circuits must be interrupted.
Clean the heat exchange elements once every two years or more often and the air filter once a year or more often. (Before cleaning, make sure
that the unit is not operating.)
To prevent electric shock hazards, provide grounding work according to the installation manual.
L - RED
N - BLU
M2F
Motor (exhaust fan motor)
Optional accessories
A1P
Printed circuit board
Q1L Q2L
Thermo switch (MF1 2 built-in)
Adapter for wiring (KRP50-2)
C1R C2R
Capacitor (M1F M2F)
R1T
Thermistor (indoor air)
Ry1
Magnetic relay (On/Off)
F1U
Fuse (250V, 10A)
R2T
Thermistor (outdoor air)
Ry2
Magnetic relay (humidifier operation)
K1R ~ K3R
Magnetic relay (M1F)
S1W
Limit switch
X9A 10A
Connector (KRP50-20)
K4R ~ K6R
Magnetic relay (M2F)
T1R
Transformer (supply 220-240V/22V)
Remote control
K7R
Magnetic relay (M1D)
X1M
Terminal (power supply)
SS1
Selector switch (main/sub)
M1D
Motor (damper motor)
X2M
Terminal (control)
Optional connector
M1F
Motor (air supply fan motor)
X11A
Connector (adapter power supply)
: Terminals
Colors:
BLK:
Black
GRN:
Green
: Connector
BLU:
Blue
RED:
Red
: Wire clamp
BRN:
Brown
WHT:
White
: Field wiring
ORN:
Orange
YLW:
Yellow
: Protective earth
Power supply
single phase
220-240/220V
50/60Hz
External output terminals
Terminals for the
input from outside
Terminals for the
centralized control
Remote control
(optional accessories)
Wiring diagram
Adapter for wiring
(optionl accessories) (KRP50-2)
Switch box
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