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13-18-607 Page 78
SYMPTOM
POSSIBLE CAUSE
REMEDY
Excessive oil
consumption
1.
Oil separation malfunction
1.
See
“Oil Carryover” in this section.
2.
Oil leaks at fittings and gaskets
2.
Detect and correct oil leaks.
3.
Shaft seal leaking
3.
Inspect or replace shaft seal.
High discharge
air, oil
Temperature
(air, water
cooled cores)
1.
Oil mixing valve stuck on bypass
mode
1.
Check 24dcv power feed to servo.
Check ModBus connection to servo.
Check servo-to-valve coupling.
Check rotation of ball valve.
2.
Clogged oil filter
2.
Inspect and replace filter.
3.
Clogged cooler (interior)
3.
Inspect and clear cooler.
4.
Clogged oil lines
4.
Inspect and clear oil lines.
5.
Low oil level
5.
Add oil to proper level.
High discharge
air, oil
Temperature
(air cooled
cores)
1.
Dirty or clogged cooler outer
surfaces.
1.
Inspect and clean cooler outer
surfaces.
2.
Insufficient cooling air flow
2.
Verify (ductwork) back pressure does
not exceed .1
” water gauge.
High discharge
air, oil
Temperature
(water cooled
cores)
1.
Optional water temp regulating or
shut-off valve malfunction
1.
Refer to Section 6, page 53
“Heat
Exchangers
” for details.
2.
Insufficient cooling water flow
2
See Section 6 for details on adequate
cooling water flow rates.
VFD Shutdown
on Overheat
1.
Ambient temperature exceeds
45
°
C
1.
Check location ventilation and
improve if necessary.
2.
VFD air filters dirty
2.
Inspect, clean or replace elements.
Содержание AirSmart VS135A
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