Great Lakes Air Products ERF SERIES Manual del usuario - Página 7

Navegue en línea o descargue pdf Manual del usuario para Secadora Great Lakes Air Products ERF SERIES. Great Lakes Air Products ERF SERIES 9 páginas. Refrigeration compressed air dryer erf series non-cycling

TROUBLESHOOTING

Sec Symptom
Water downstream of
A
dryer.
B
Drain System Failure
with no condensate
discharge on test
initiation.
C
Drain System Failure
with continuous
condensate or air
discharge.
D
High pressure drop
across dryer
E
E1
Power on indicator
does not illuminate
E2
Refrigeration
compressor cycles on
and off
Great Lakes Air Products ERF Series Refrigeration Dryers
Effective for equipment manufactured 01/01/2010
Possible Cause(s)
1. Residual free moisture
remaining in downstream
piping
2. Air By-pass system is
open
3. Ambient temperature
surrounding downstream
piping is below the dryer's
dewpoint.
4. Free water (liquid) is
entering the dryer
5. Condensate is not being
drained
6. Dryer is overloaded
resulting in high dewpoint
7. Refrigeration system is not
functioning.
8. Suction pressure not in
operating range
1. Drain strainer is clogged
2. Solenoid valve or
electronic timer failure
1. Solenoid valve diaphragm
rupture or orifice path
blocked open
1. Inlet flow exceeds
maximum capacity
2. Freezing of moisture in
evaporator is restricting
inlet air flow
Refrigeration System Fault
1. Power failure, Line fuses
blown, or disconnect
open.
1. Ambient Conditions are
above or below minimum
or maximum ranges.
2. Air-Cooled Units,
Dirty condenser
3. Water-Cooled Units,
High fluid temperature or
low fluid flow.
Page 7 of 8
Corrective Action
Drain low spots in system and purge with
dry air
Verify valve positions and correct valve
positions
Insulate and/or heat trace piping exposed
to low ambient temperatures or dry air to a
lower dewpoint.
Dryers are designed to handle saturated
air not condensed liquid. Install a separator
and coalescing filter upstream of dryer.
See section B
See capacity charts to determine correct
load
See section E
Contact Service Department for authorized
technician to perform adjustments.
Depressurize dryer and replace or clean
drain strainer.
Replace drain solenoid and or timer
assembly
Clean or replace internal diaphragm
assembly.
Check inlet flow vs. rated capacity
If refrigerant suction pressure is out of
standard operating range, contact a
qualified refrigeration service technician or
the manufacturers service department.
Have an electrician check electrical feed
and connection integrity.
Verify range and rectify ambient
conditions.
Clean condenser as per required
maintenance.
Check fluid temperature, bring in
range and check for free fluid flow
through condenser. If problem
persists contact a qualified
refrigeration service technician or
the manufacturers service
department.