8
CONNECTION TO POWER MAINS
DISCONNECT THE UNIT FROM POWER SUPPLY PRIOR TO ANY ELECTRIC INSTALLATION
OPERATIONS.
INSTALLATION SHALL ONLY BE PERFORMED BY A PROFESSIONAL ELECTRICIAN AFTER
CAREFUL STUDY OF THE PRESENT USER’S MANUAL.
THE RATED ELECTRICAL PARAMETERS ARE STATED ON THE RATING PLATE.
ANY TAMPERING WITH THE INTERNAL CONNECTIONS IS PROHIBITED AND WILL VOID
THE WARRANTY.
Heater connection to the air handling unit
The connection must be completed prior to connection of
the heater and the air handling unit to power mains!
The electric heater an the air handling unit must be connected
via the cable with the prewired connectors DB-9F.
Heater connection to power mains
Connect the heater to ac single-phase 230 V / 50 (60) Hz
power mains using a pre-wired power cable with a Euro Plug
XP.
8
9
External connector DB-9F
Heating
signal
Deactivated
1
2
3
4
5
6
TK-50
TK-90
7
to the unit
Design.
Name
Type
TK-50
Contacts of manual reset thermal switch with
response tempe50 °C
N0
TK-90
Contacts of manual reset thermal switch with
response tempe90 °C
N0
Heating
signal
Heater control triac input signal
VAC
230 VAC
ELECTRIC SHOCK HAZARD
1
2
3
PE N
L
Po
w
er input
230 V
AC
MAINTENANCE
DISCONNECT THE UNIT FROM POWER SUPPLY BEFORE ANY MAINTENANCE OPERATION
WITH THE UNIT.
AVOID WATER SPLASHES ON THE UNIT! DO NOT USE AGGRESSIVE SOLVENTS AND
SHARP OBJECT FOR CLEANING.
The heater maintenance includes:
•
Inspection of screw connections as well as rivet and welded
joints.
•
Inspection of tightening of ground screw clamps and electric
connections.
•
Inspection of the wire terminal connections.
•
Cleaning of the electric heating elements of dust and dirt.
V115EN-01.indd 8
16.09.2015 12:01:55
