Waterous Eclipse ES TC20 Operation And Maintenance Download Page 9

 

 F-1031, Section 2119 

Page 9 of 24 

After engaging the fire pump, ensure that the water pres-
sure rises on the panel mounted master pressure gauge. 

1. 

Place the Auto Sync control in the “UNLOAD” po-
sition and check master air pressure gauge reads 

“0” PSI. 

2.  Engage  the  air  compressor  by  moving  the  com-

pressor switch to the “ON” position. 

3. 

Move the Auto Sync control to the “FIXED” posi-
tion. Air pressure  will rise to the preset pressure 
setting on the air compressor, approximately 150 
PSI (10 bar) with the engine throttled-up.  

 

Air Source Hazard.  
May cause serious personally injury or death.

 

Do not use the compressed air foam unit as an air 
source for any self-contained breathing apparatus 
(SCBA) or any breathing air supply. 

4. 

For lower operating pressures: 

Move the Auto 

Sync controls to the AUTO position and  use the 
engine throttle to control the air pressure. 

5.  Connect the air discharge hose to the fitting on the 

pump  operator’s  panel  and  open  the  air  supply 
valve. 

Compressed Air Foam Operations

 

To shut down compressed air foam operations, follow the 
instructions below: 

1.  Close air valve(s) to the discharge(s). 

2.  Turn off foam proportioner. 

3.  Flow clear water through discharge hose(s) until 

no bubbles are present. 

4.  Close discharge valve(s). 

5.  Place the Auto/Sync control in the 

“UNLOAD” po-

sition. 

6. 

Move the air compressor switch to the “OFF” po-
sition. 

After the compressor is disengaged, the system will vent 
itself, creating an audible hiss as compressed air is evac-
uated from the pressure vessel/sump. 

The Eclipse

 ES air compressor is equipped with a com-

pressor overheat  auto shut down. This auto shut down is 
present to protect the compressor system from severe 
damage if such an event should occur. 

Compressor Overheat

 

If high oil temperature (250

 and above) is detected in the 

compressor, the compressor clutch will disengage, the 

compressor will stop

 and the Compressor Overheat light 

will illuminate. 

The water pump and foam proportioning 

systems will continue to operate and are not affected by 
the compressor shut down.

 To re-start perform the follow-

ing: 

1.  Correct the fault, check oil level, cooling lines, re-

circulation line (if operating from tank), etc. 

2.  Reset auto shut down circuit by: 

3. 

a.Placing the Auto Sync Control to “Unload”. 

4.  b.Move  the  compressor  engage  switch  to  the 

“OFF” position. 

The compressor can now be restarted by following the 
standard instruction found in the “Operation” section. If for 
any reason the fault has not been corrected when turning 

the compressor engage switch “ON”, the auto shut down 
will activate immediately and the Compressor Overheat 
light will illuminate. 

 

 

Pressure Hazard.  
May cause serious personally injury.

 

Discharge outlets that are capped, hose lines that are 
valved and charged and the air compressor sump 
may contain compressed air. Relieve all pressure be-
fore attempting to remove any caps, fittings, nozzles 
or to perform maintenance to prevent serious injury. 

Excessive heat build-up and oil system contamination are 
the most common causes of compressor system prob-
lems and premature wear. With proper operation and 
maintenance, the compressor system should far outlast 
the vehicle it is mounted on. Adherence to the following 
guidelines will prevent potentially costly damage.  

1.  There is a sight gauge provided on the oil reser-

voir/sump tank. The oil level should be at approx-
imately half-way up the window. Check the oil on 
level  ground,  prior  to  system  start  up  (system 
holds  approximately  2  to  3  gallons  of  oil).  If  the 
system has recently been run, wait 10 minutes af-
ter shut-down for the oil to stabilize before check-
ing  the  oil  level.  The  compressor  uses  a  non-
foaming  hydraulic  oil.  This  oil  is  classified  by  an 
ISO standard as ISO 68 viscosity and is sold un-
der  various  trade  names.  Many  are  sold  as  an 

“anti-wear”  hydraulic  oil  and  are  available  from 
auto parts or lubricating oil suppliers. 

 

 WARNING

!

 WARNING

!

Shut Down Procedure 

Compressor Auto Shut Down (Overheat) 

Service and Maintenance 

Summary of Contents for Eclipse ES TC20

Page 1: ...hut Down Procedure 9 Compressed Air Foam Operations 9 Compressed Auto Shut Down 9 Service and Maintenance 9 Poly Chain Replacement and Adjustment 10 Calibration Control Air Circuit 12 Troubleshooting...

Page 2: ...and nozzle used for air discharge will be come hot due to the hot air flowing through it Wear protective gloves Also be prepared for noz zle reaction when air discharge and nozzle are opened Air Sourc...

Page 3: ...has a siphon tube that picks up the recovered oil for return to the air compressor The compressor s air output is controlled by a modulating inlet valve The inlet valve is opened and closed by the Au...

Page 4: ...Belt 19 Compressor Oil Sump 5 Belt Adjustment Hardware 19A Safety Relief Valve 6 Air Inlet Valve 20 Oil Temperature Gauge 7 Auto Balancing Valve 21 Oil Temperature Sensor 8 Air Clutch Solenoid 22 Oil...

Page 5: ...of 0 2 and 0 3 are typically ade quate to produce compressed air foam that is formed in a hoseline and used on Class A combustibles Higher set tings will result in a drier appearing foam Lower settin...

Page 6: ...olution from another discharge while pumping com pressed air foam from yet another or varying foam con sistencies expansion ratios from different discharges simultaneously NOTE Monitor compressor inst...

Page 7: ...ler is running the FOAM LED will be lit The FOAM LED will blink when the motor control output is active The LED will be lit and not blink during the initial pump delay or when the system is on but no...

Page 8: ...position 3 Move the Auto Sync control to the AUTO posi tion The air pressure should rise to within plus or minus 5 of the water discharge pressure The Auto Sync system will balance the air and water p...

Page 9: ...Overheat light will illuminate The water pump and foam proportioning systems will continue to operate and are not affected by the compressor shut down To re start perform the follow ing 1 Correct the...

Page 10: ...amage or excessive wear semi annually or more frequently as dictated by the amount of use Belt tension may be checked by applying a 10 12 lb load to the belt mid span between drive and driven sprocket...

Page 11: ...nment in which the unit operates will determine the frequency of air filter replacement In any situation replace at least annually 12 Replace the air oil separator cartridge every 24 months or if the...

Page 12: ...d regulator is performing by varying the compressor speed and monitoring the air pressure gauge The pressure should remain steady at the fixed pressure setting With the final adjustments to the FIXED...

Page 13: ...ge and correct as needed Air inlet trim valve out of adjustment Reference Control Air Circuit Calibration In structions on Page 12 Debris in air inlet trim valve AITV Clean debris from air inlet trim...

Page 14: ...Eclipse Excessive oil consumption Reservoirs overfilled with oil Check oil level while on a level surface Reduce level to middle of the sight glass Flowing in excess of 200 CFM Reduce RPM and flow CA...

Page 15: ...requires repair Water in compressors oil air Leaking oil cooler Isolate the heat exchanger and check for leaks Replace if necessary Typical cause is freez ing Discharge air check valve s malfunctionin...

Page 16: ...wing the interaction of the control air system compo nents in each mode as well as explanations of the work ings of specific components The status of the control air circuit is also described when the...

Page 17: ...ar If the compressor discharge air pressure is above 40 50 psi 2 8 3 4 bar then the control air closes the air inlet valve This causes the control air pressure to drop below 40 50 psi 2 8 3 4 bar the...

Page 18: ...si 10 3 bar When the discharge air pres sure is below the set point 150 psi 10 3 bar then the fixed air regulator closes Now the control air pres sure is not high enough to keep the air inlet valve cl...

Page 19: ...high enough to keep the air inlet valve closed The air inlet valve opens allowing air into the compressor raising the control air pressure above 100 psi 8 6 bar The balance valve opens and closes as n...

Page 20: ...t or have any influence They are basically bypassed The auto sync solenoids are also bypassed and it doesn t matter whether they are opened or closed They have no influence on shutdown Pressure Hazard...

Page 21: ...flow at the compressor discharge To stop the compressor pressure increase or restrict the compressor air flow the air inlet valve needs to close The air inlet valve will close when the control air pr...

Page 22: ...egulator operate in the air control circuit when in the FIXED or AUTO modes Fixed Mode The regulator basically operates as de scribed above If the compressor discharge pressure is above the fixed air...

Page 23: ...Bal ance Valve Open The balance valve can be calibrated or biased via the BTV See control air control circuit cali bration in the maintenance manual How does the balance valve operate in the air cont...

Page 24: ...he CIAP is always 14 5 psia or less and the CDAP is 40 psig or greater minimum pressure valve setting allowing the shuttle valve to stay closed The figure on the right shows the shuttle valve in an op...

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