TLV COSPECT M-COS-16, Инструкция по эксплуатации

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172-65188M-08 (
M-COS 3,16,21
Pressure Reducing Valve) 24 Jun 2015
34
Troubleshooting Chart (continued)
Problem Symptom Cause Remedy
Hunting or chattering
occurs
(continued) Chattering never
stops Condensate is
contained, or the trap
is blocked Check the trap
Check the piping
The selected model is
inappropriate for the
service conditions
(specifications) Check the model
selection, replace
the
M-COS
if
necessary
Abnormal noises Makes a high-
pitched noise There is too high a
reduction ratio, the
flow is too great, or
there is a high-speed
open/close valve
nearby Use two-stage
reduction
Check the flow rate,
use a larger size valve
Install the valve as far
away as possible
Faulty steam trap Steam is blowing There is a build-up of
dirt on the trap valve
seat or at the float
base Clean
The body is installed
tilted Check the piping
The float is deformed Check for water
hammer; replace
with a new float
There is vibration in
the piping Secure the piping
No condensate is
discharged The primary pressure
exceeds the trap
valve seat maximum
working pressure Adjust primary
pressure
Water is inside the
float Replace with a new
float
The outlet piping is
clogged Check the piping;
clean
The trap valve seat is
clogged Clean or replace with
a new trap valve seat
Power supply LED
does not light even
after turning ON the
power switch Wiring is arranged
incorrectly Rearrange wiring
Fuse is burnt-out Replace fuse
Pressure indication
is abnormal Faulty connection
with pressure sensor,
or break in the wiring Rearrange wiring
Pressure indication
is abnormal Adjustment for
controller and
pressure sensor are
not made properly Readjust zero/span
(gain)
Motor remains
inoperative even
after pressure setting
switch is turned ON The pressure lock
switch is turned ON Turn OFF the
pressure lock switch
Maximum allowable
pressure switch is ON Release the
maximum allowable
pressure switch
Wiring to actuator is
incorrect Rearrange wiring