BINDER MK 115 - Manual (Page 78)

MKF + MKFT (E3.1) 07/2014 page 78/114
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 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 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. The correct water supply can be
monitored at the internal water can, where the water is intermediately stored also if a water pipe is con-
nected. The correct filling level is automatically maintained at ½ to ¾ of the maximum level.
Manual fresh water supply via internal freshwater can
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 water can is sufficient for for a period, which may last be-
tween one and several days, depending on the humidity demand (entered humidity set-point and number
of door openings). Fill the can up to the maximum level mark only. The cover of the water inlet valve must
be screwed on the freshwater connection “IN” (18) (chap. 4.2.2).
Wastewater
The condensation water from the interior and excess freshwater (by manual excess filling or in case of
fault) is collected in an internal can with a volume of approx. 1.5 liters. It is pumped off via the wastewater
pipe.
Dehumidifying system
When switch Humidity ON / OFF (4) (located on the lateral control panel) is in position ON, the alternating
climate chamber MKF / MKFT dehumidifies as needed in order to reach the entered humidity set-point
inside the Control range of temperature and relative humidity (Figure 19).
Dehumidification occurs in case of need by means of a defined dew point undershoot of several evapora-
tors of the refrigeration system. The condensate which forms is carried away as wastewater.
With temperature set-points outside the control range (hatched area in Figure 19), humidification and
dehumidification are automatically turned off. If the humidity system is turned off while there are descend-
ing temperature curves, then operation of the refrigeration system may cause dehumidification of the
charging material.
With humidity set-points outside the control range (hatched area in Figure 19), or with entry of set-point 0
% r.H., the humidification and dehumidification system is turned off even if the humidity switch is in posi-
tion ON.
For error indications concerning water supply and humidity system, see chap.13.1 and 19