Binder KBF P 240-UL, Translation Of Original Operation Manual

Page: 138 / 189

KBF P + KBF LQC + KBWF (E6) 11/2016 page 138/189
18.1 Function of the humidifying and dehumidifying system
Humidifying system
The humidifying and dehumidifying system is located in the humidity generation module. In a cylindrical
container with a volume of about 2 liters an electrical resistance heating evaporates water. The water con-
tent is kept exactly at the boiling point, and thus steam can be immediately generated in sufficient quantity
for rapid humidity increases or for compensation of humidity losses, e.g. by door openings. Condensation
forming on the outer walls of the useable volume is led through a water drain in the outer chamber into the
wastewater can which is pumped off automatically to the wastewater pipe when required.
Freshwater
You can supply the chamber with freshwater via a water pipe or by manually filling a freshwater can (op-
tion, chap. 21.9). You can mount the can on the rear of the chamber or place it next to the chamber.
In order to ensure accurate humidifying, observe the following points with regard to the
freshwater supply:
•
Supply pressure 1 to 10 bar when connecting to a water pipe
•
Water type: deionized (demineralized) water
•
To ensure humidification during 24 hours even at high humidity set-points with manual wa-
ter supply, we recommend filling the freshwater can (option) at the end of each day.
•
Water intake temperature NOT below +5 °C / 41 °F and not exceeding 40 °C / 104 °F .
BINDER GmbH is NOT responsible for the water quality provided by the customer.
Any problems and malfunctions that might arise following use of water of deviating quality is
excluded from liability by BINDER GmbH.
Automatic fresh water supply via water pipe
With this type of supply, the humidity system is continuously functional.
Manual fresh water supply via freshwater can (option, chap. 21.9)
With this type of supply, the humidity system is functional only if the water can is sufficiently filled. Check
the filling level daily. The water reserve in the can is sufficient for a period, which may last between one
and several days, depending on the humidity demand (entered humidity set-point and number of door
openings).
Waste water
The condensation water from the interior is collected in an internal can with a volume of approx. 0.5 liters.
It is pumped off via the waste water pipe.
Dehumidifying system
When the humidity system is activated, the chamber dehumidifies as needed in order to reach the entered
humidity set-point inside the control range of temperature and relative humidity.
Dehumidification occurs in case of need by means of defined dew point undershoot of several evaporators
of the refrigeration system. The condensate which forms is carried away as waste water.
If the humidity system is turned off while there are descending temperature curves, then operation of the
refrigeration system may cause dehumidification of the charging material.
For error indications concerning water supply and humidity system, see chap. 12.1.4 and 24.