Guidelines When Connecting The Electrical Wiring; System Configuration; About Control Systems - Daikin VAM350J7VEB Installer And User Reference Manual

n m l k
J3 J2 J1 JC
X5A X6A X12A X11A
o
p
NOR.
NOR.
H M
SS1
q
a Power supply
b Terminals
c Damper
d Damper (only models 1500+2000 bottom unit)
e External damper (field supply)
f Fan communications
g KRP2A51 (option)
h Controller
i Central control
j External input
k Outdoor air thermistor
l Indoor air thermistor
m Damper (only models 1500+2000 bottom unit)
n Damper
o BRP4A50A (optional accessory)
p CO₂ sensor
q Factory setting (No operation if setting is changed)
NOTICE
Factory settings: Do NOT change the switch settings when
a controller is connected. SS1 is a setting switch to operate
the unit without controller. Changing the switch setting
when a controller is connected will stop the unit from
operating normally. Keep the switch on the PCB in the
factory setting position.
7

System configuration

7.1

About control systems

Purposes and applications
Basic method to operate the heat reclaim ventilation
unit
VAM350~2000J7VEB
Heat reclaim ventilation unit
4P487293-1A – 2018.05
j
i h
J3 J2 J1 JC F2 F1 P2 P1
F2 F1 N/P2 P/P1
H M
SS1
g
f
e
d
c
b
L N
X27A
F1U 6.3A
a
Description of the system
Independent system control system
6.5.5 Guidelines when connecting the electrical
wiring
Keep the following in mind:
▪ If stranded conductor wires are used, install a round crimp-style
terminal on the end of the wire. Place the round crimp-style
terminal on the wire up to the covered part and fasten the terminal
with the appropriate tool.
b a
a Stranded conductor wire
b Round crimp-style terminal
▪ Use the following methods for installing wires:
Wire type
Single-core wire
A
a Curled single-core wire
b Screw
c Flat washer
c b
Stranded conductor
wire with round
crimp-style terminal
a Terminal
b Screw
c Flat washer
O Allowed
X NOT allowed
Controller
Central Unified ON/ Schedule timer Controller for
controller OFF controller
— — —
7 System configuration
Installation method
c b
AA´
A´
c
a a
a b c
B
B
a
Controller for Operation/stop
heat reclaim air conditioner
ventilation unit
◯ ◯ ◯
Installer and user reference guide
21