Vallox Oy FIN-32200 Loimaa Finland Tel: +358 2 7636 300 Fax: +358 2 7631 539
Internet: www.vallox.com
1.09.85E/3.01/PDF
VALLOX 252 M
EXTERNAL ELECTRICAL CONNECTIONS VALLOX 252 REMOTER MONITORING CONTROL
VALLOX 252 M External Electrical
Fan capacity control
Control voltage 24V
AC for the Min. mode
Control voltage 24V
AC for the 1/2 mode
Control voltage 24V
AC for the Max. mode
Control voltage 24V
AC for remote monitoring
Heat recover
y bypass control
Heat recover
y active
= 24V
AC
Heat recover
y deactivated
= 0V
AC
Operation mode information on
fan capacity modes
Entering operation mode information on capacity modes
Operation mode information on the Min. mode
Operation mode information on the 1/2 mode
Operation mode information on the Max. mode
Operation mode information from
the pressure difference switch
Operation mode information from Pos. 1 (discharge air duct)
Entering operation mode information for Pos. 1 and Pos. 2
Operation mode information from Pos. 2 (discharge air duct)
REMOTE MONITORING
12x0.5
ÖPVC-OZ OR SIMILAR
DAMPER MOTOR 24V
AC
FOR OUTDOOR OR
EXTRACT AIR DUCT
NOTE! When the V
ALLOX 252 M unit is equipped with a
PREHEA
TER and a POST
-HEA
TING UNIT WITH W
ATER
CIRCULA
TION, the L1 and L on the terminal block are
connected. In this case, THE PREHEA
TER DOES NOT NEED
a separate power supply
.
NOTE! When the V
ALLOX 252 M unit is equipped with a
PREHEA
TER and an ELECTRIC POST
-HEA
TING UNIT
, a separate
16A power supply is needed for THE PREHEA
TER.
DISTRIBUTION P
ANEL
POS. 2
STATUS
POS. 1
MAX.
1/2
MIN.
STATUS
NC
24VAC
MAX.
1/2
MIN.
N / 24VAC
L10
L1
L
N
-
VALLOX 252 M
