REMKO PWW Series - Manual (Page 18)

18
REMKO PWW
Control unit MAK-2
We reserve the right to make changes to dimensions and design in the interest of technical advances.
connected to a control unit.
The total capacity of the con-
nected motors must not exceed
the permissible switching capacity
of the control unit.
The thermal contacts of all motors
must be connected in series.
Note on safe operation
Earthing, multiple earthing or pro-
tection switching and mains pro-
tection must be carried out on-site
according to VDE specifications
and the regulations of the respon-
sible electricity supply company.
Only specialists may establish
electrical connections based on the
wiring diagrams in compliance with
the applicable regulations, taking
into account local regulations.
three-phase 400V,
two-speed fan
maximum switching capacity 8 kW
Surface mounting, motor protec-
tion by means of built-in thermal
contacts in the fan motor, termi-
nals for thermal contacts, room
thermostats, anti-frost thermostat
and mixed-air box servomotor.
Design
Sturdy plastic housing,
Degree of protection IP 54.
Totally-insulated according to VDE.
Fully electronic two-step control
unit with digital display.
Two modes are available, “Manu-
al“ and “Automatic“.
Operation takes place via a large
sized membrane keyboard.
In the automatic mode, the fan
speeds are controlled according to
the freely programmable tempera-
ture difference.
Day/night/temperature control in-
cluding week programme provided
as standard. Four switching times
are available for day and night
respectively.
Available for motor protection are
thermal contact terminals.
Terminals for anti-frost thermostat
and continuously variable flap ser-
vomotor are provided as standard.
Function
The mixed-air flaps can be conti-
nuously controlled via flap servo-
motor. When the unit is switched
off, the flaps assume a “CLOSED“
position.
The anti-frost thermostat also
closes the flaps and switches off
the fan.
Reconnection after a fault
After a power failure (up to
three hours) the unit restarts
automatically.
After operation of the thermal
contacts, the unit can be reset
after cooling down via the “OFF“
button.
The antifreeze sensor automatically
starts the unit in the previously
selected programme mode after a
rise of temperature.
Multiple series connection
The control unit is suitable for
multiple series connection. Several
motors in the same circuit can be
PE L1 L2 L3 N PE U1 V1 W1U2 V2 W2 X1 1 2 3 4 5 6 7 8 9 10 11 12 X2 13 14 15
TK FS TF Mischluft-
klappe
Potenzialfreier
Kontakt TK
Potenzialfreier
Kontakt FS
Potentiometer
zum Abgleich des
Temperaturfühlers
Spannungsversorgung Ventilatoranschluß
Wiring diagram