50-200 EVAPORATOR FOR CHLORINE
WT.050.200.001.UA.IM.0814
53
EVOQUA
W3T98237
Table 4.1 - Troubleshooting (Cont'd)
Symptom
Probable Cause
Corrective Action
Group 6
High Temperature Panel Light On.
High Temperature Alarm** (If
Provided) Activates.
Heat Exchanger Off.
(Alarm and Panel Light May
Switch On and Off Periodically
Due to the Cooling and Reheating
of the Water About the Switch
Setpoint.)
High tank water temperature as a
result of:
(a) Temperature control on circuit
board fails or is incorrectly wired.
(b) Temperature control sensor
in probe housing fails or is incor-
rectly wired.
NOTE: A false alarm condition
would exist if the high tempera-
ture alarm switch is not set to
200°F or a temperature alarm
switch fails.
(a) Replace faulty equipment or
correct wiring.
(b) Replace faulty equipment or
correct wiring.
Replace temperature switch as-
sembly.
Group 7
Low Water Level Panel Light On.
Low Water Level Alarm** (If Pro-
vided) Activates.
Heat Exchanger and Circulator
Off.
GPRV* (Or VR-CU) Closed.
Water Level in Sight Glass Low or
Not Visible at All.
Possible Additional Symptom:
Low Water Temperature Alarm**
(If Provided) and Panel Light
Activate.
Low water level condition as a
result of any of the following:
(a) Water supply blocked or failed.
(b) Solenoid valve clogged or
faulty.
(c) Leak(s) in tank or piping.
(d) Drain valve is open or leaking.
(e) Control for automatic water re-
fill fails or water level probes are
incorrectly wired.
(a) Clean out piping. Restore supply.
(b) Clean or replace faulty valve.
(c) Correct leak(s).
(d) Close or replace valve.
(e) Replace faulty controls or
check wiring.
*GPRV - Gas Pressure Reducing Valve; VR-CU - Vacuum Regulator-Check Unit
**Alarms will not activate if customer power fails.
Содержание Wallace&Tiernan 50-200 Series
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