US
ER
G
ENER
A
L
S
PE
CI
A
LI
S
T PER
S
O
NNEL
31
EN
EN
KWL Hygrobox KWL HB.. EH/WW
Installation and Operating Instructions
Connection diagram Parallel connection
with thermostatic valve:
This connection
variant is best for the coordination and
control of the system. The heat output of
the aux. heater battery is automatically
coordinated with the integrated heater
battery through the thermostatic valve*,
which allows the highest possible eva-
poration performance depending on the
available supply line temperature.
The “thermostat sensor*” must be
installed in the supply air duct, approx.
50 cm downstream of the aux. heater
battery.
Vorlauf
Rücklauf
Lufteintritt
Heiz-
system
*
Connection diagram Series connection
(with bypass):
This connection variant
has the advantage that the heat output
of the heater battery cannot be separa-
tely controlled. If the heat output of the
aux. heater battery is too high, the mixer
will close, and the heat output of the
integrated heater battery will reduce, as
well as the humidification performance.
The heat output of the two heater batte-
ries can be coordinated by installing a
bypass line with control valve.
Vorlauf
*
Rücklauf
Lufteintritt
Heiz-
system
externer Temperaturfühler
On-site
Air inlet
Air inlet
Return line
Return line
Supply line
Supply line
Heating
system
Heating
system
External temperature sensor
