Daikin VRV IV+ Service Manual page 395

REYQ8~20+REMQ5U7Y1B
VRV IV+ Heat Recovery
ESIE18-15B – 2020.05
Branch selector box BS4~16Q-A
Notes
1 This wiring diagram applies to the BS unit only.
2 Symbols (see below).
3 For wiring for the terminal block on X2M ~ X6M (operation) , refer to the
installation manual attached to the product.
4 The factory settings of DIP switch (DS1, DS2) are as follows. For the setting
method of DIP switch (DS1, DS2), refer to 'the installation manual' and
'precaution for service' attached on the control box cover.
5 As for X15A(A1P ), remove the short circuit connector and connect the air
conditioner stop signal (optional product). For details, please refer tot he
operation manual attached to the kit.
Symbols:
Field wiring
Terminal block
Connector
Terminal
Protective earth
Legend for wiring diagram: BS4~16Q-A
A1P, A2P, A3P, A4P Printed circuit board (Control)
C1 Capacitor
DS1, DS2 DIP switch
F1U Fuse (T 3.15 A / 250 V)
PS Switching power supply
V1R Diode bridge
X1M Terminal strip (Power)
X2M, X3M, X4M, Terminal strip (Transmission)
X5M, X6M
Z1F Noise filter
Y1E, Y4E , Y7E, Electric expansion valve (Suction)
Y10E, Y13E, Y16E,
Y19E, Y22E, Y25E,
Y28E, Y31E, Y34E,
Y37E, Y40E, Y43E ,
Y46E
Y2E, Y5E, Y8E, Electric expansion valve (HP/LP Gas)
Y11E, Y14E, Y17E,
Y20E, Y23E, Y26E,
Y29E, Y32E, Y35E,
Y38E, Y41E, Y44E,
Y47E
6 Technical data
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Service manual
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