Chapter 3 Installation
23
3.3 Drainage Work
(Not necessary with LU cabinet)
Drainage work is needed to drain water from the humidifying tray
and
condensation formed in the test area out of the cabinet.
CAUTION
•
If collecting drainage in a container, check water
level to make sure it does not overflow.
•
To prevent backflow into the cabinet, do not share
the drainage line with other equipment. Also, leave
the water tank supply/drain hose and drain hose
ends open to the atmosphere.
•
If the water tank supply/drain hose and drain pipe are
raised more than 100mm off the ground, drainage
will flow back into the test area.
Gravity drainage is used with temperature (and humidity) cabinets, so
keep the drain hoses sloped downward to prevent pockets from
forming in the line and run them into a pit.
Water tank nipple
Connect a hose here to fill or drain the
water tank.
Drain pipe
Drains water from the test area, including overflow
from the humidifying tray, and condensation from
dew tray.
Humidifying tray drain nipple
Connect a hose here to drain the humidifying
tray during temperature tests or humidifier
cleaning.
Power cable with grounding line
Water supply/drain hoses
9 mm ID with snap-on socket
head
Fig. 3.2 Cabinet rear connections
Note
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