17 Technical data
Installation and operation manual
27
VAM350~2000J8VEB
Heat reclaim ventilation unit
4P664011-1 – 2021.08
17
Technical data
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subset
of the latest technical data is available on the regional
Daikin website (publicly accessible).
▪ The
full set
of latest technical data is available on the Daikin
Business Portal (authentication required).
17.1
Wiring diagram
The wiring diagram can be found on the outside of the service cover.
Legend for wiring diagrams:
A1P
Printed circuit board
A2P
Printed circuit board assy (fan)
(VAM350~650)
A2P-A3P
Printed circuit board assy (fan)
(1000)
A2P~A5P
Printed circuit board assy (fan)
(2000)
C7
Capacitor (M1F)
F1U (A1P)
Fuse (250 V, 6.3 A, T)
F2U (A2P)
Fuse (250 V, 5 A, T) (VAM350~650)
F3U
Fuse (250 V, 6.3 A, T) (VAM800~2000)
F4U (A2P)
Fuse (250 V, 6.3 A, T) (VAM350~650)
HAP
Pilot lamp (service monitor - green)
K*R
Magnetic relay
L*R
Reactor
M1D
Motor (damper)
M2D
Motor (damper) (2000)
M1F
Supply air fan
M2F
Exhaust air fan
M3F
Motor (exhaust air fan) (top)
(2000)
M4F
Motor (supply air fan) (top)
(2000)
PS
Switching power supply
Q1DI
Field earth leak detector (≤300 mA)
R*
Resistance
R1T
Thermistor (indoor air)
R2T
Thermistor (outdoor air)
R3T
Thermistor (PTC)
S1C
Limit switch damper motor
S2C
Limit switch damper motor
(2000)
V1R
Diode bridge
X1M (A1P)
Terminal
X2M (A1P)
Terminal (outside input)
X3M
Terminal (power supply)
Z1F
Noise filter
Z*C
Noise filter (ferrite core)
Remote controller
SS1
Selector switch
Connector for option
X14A
Connector (CO
2
sensor)
X24A
Connector (outside damper)
X33A
Connector (contact printed circuit board)
X35A
Connector (power supply printed circuit
board)
Symbols:
Field wiring
Terminals
Connectors
Protective earth
Noiseless earth
Colours:
BLK
Black
BLU
Blue
BRN
Brown
GRN
Green
ORG
Orange
RED
Red
WHT
White
YLW
Yellow
Translation of text on wiring diagram
English
Translation
Notes
Notes
X35A is connected when optional
accessories are being used, see
wiring diagram of this accessory
X35A is connected when optional
accessories are being used, see
wiring diagram of this accessory
An EKVDX unit and its
corresponding VAM-J8 unit
should be connected to a
common power supply. Refer to
the installation manual of the
EKVDX unit for further details.
An EKVDX unit and its
corresponding VAM-J8 unit
should be connected to a
common power supply. Refer to
the installation manual of the
EKVDX unit for further details.
Transmission wiring
Transmission wiring
Ext. output - error state
External output - error state
Ext. output - R32 alarm
External output – R32 alarm
Caution when performing service
inside the el. compo. box
Caution when performing service
inside the electrical component
box.
Caution for ELECTRIC SHOCK
Caution for ELECTRIC SHOCK
Do not open the el. compo. box
cover for 10 minutes after the
power supply is turned off.
Do not open the electrical
component box cover for 10
minutes after the power supply is
turned off.
After opening the el. compo. box,
measure (on A1P~A5P) 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.
After opening the electrical
component box, measure (on
A1P~A5P) 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.
Measuring points for voltage
Measuring points for voltage
Printed circuit board
Printed circuit board
