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13. Clogging status indicator
The CRD-H Series is equipped with a clogging status indicator. This section
explains how to read the indicator, how to make the initial setting, and how
to change the indicator's mount position.
(1)
Reading the clogging status indicator
As shown in Fig. 1, the float
position should be checked
when the power is turned ON.
The upper part of the float is
red and the bottom part is
green. When the filter is in
good condition (not clogged),
the float's green part is visible.
When clogged, the red part is
visible.
(2) Initial setting
The initial setting described here assumes that the Mistresa is in a
standard operating condition (3m or less from the suction duct, with no
after-filter installed at the discharge side). Depending on the customers
piping configuration and installed accessories, the following initial
settings may be required.
①
Loosen the Fig. 1 nut.
②
Adjust the Fig. 1 bolt as follows:
When an after-filter is installed …… Loosen the bolt
1/4 of a turn
.
When the distance from the suction side is greater than 3m
…… Tighten the bolt
1/4 of a turn
.
If other special piping exists …… Tighten or loosen the bolt until
the float sinks (drops), then
loosen the bolt 2 turns
from that position.
③
Secure the bolt, then tighten the nut. (Both the bolt and nut have
right-hand threads.)
Fig.1 Structural diagram
Bolt
Nut
"Filter NG (clogged)"
float position
"Filter OK"
float position
Protective elbow
or when the initial setting
(
bolt's position is unknown
)
