Waterous Eclipse ES, Руководство по установке

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F-1031, Section 3028 Page 33 of 37
Electric Auto-Sync System
The Electric Auto-Sync System seldom needs adjusting after the initial setup
provided the rest of the CAFS system is well maintained.
NOTE: Do not adjust the Electric Auto-Sync components to compensate
for problems elsewhere in the CAFS system.
NOTE: Before making any adjustments, check the following items:
•
Check the oil level in the sump for proper level
•
Check the air and oil filters for their scheduled servicing
•
Check the oil change date
•
Check the compressor for overheating
•
Check the cleanliness of the oil cooler strainer
•
Check air lines for leaks
NOTE: Always start by adjusting UNLOAD mode, then FIXED and then
AUTO.
A common problem is unauthorized adjustment of the balance valve in an at-
tempt to improve performance.
If unauthorized adjustments to the Electric Auto-Sync are a problem we sug-
gest placing a seal over the adjustment points. This will let maintenance per-
sonnel know if the system has been tampered with.
M
Control Air Circuit Calibration - See Next Page for Location of Components
The Eclipse ES Air Control circuit is preset and adjusted at the factory prior in will INCREASE the pressure. Turning the screw out will DECREASE the
to shipment. In most cases, the factory settings will provide satisfactory perfor-
mance for typical CAFS and auxiliary air applications. The FIXED air operation
is factory set at 145-150 P.S.I.G. The AUTO air operation is set (or trimmed) to
match the fire pump discharge pressure (+/- 5%).
If the air control circuit requires changing or the circuit has lost its factory set-
ting, the following procedure can be used to “fine tune" the system.
1. Preset the Air Inlet Trim Valve (AITV) by closing the valve, then opening
the valve three complete turns.
2. Preset the Balance Trim Valve (BTV) to full open.
3. Start the fire pump, remaining at idle speed, and establish water flow ei-
ther through a discharge or tank recirculation.
4. Set the Auto Sync Control Panel to UNLOAD mode and close all dis-
charges.
5. Start the air compressor by placing the compressor engage switch to
“ON".
6. Read the main air pressure gauge (should read 40-50 P.S.I.G.). In the UN-
LOAD mode, this minimum pressure is always present to provide com-
pressor oil circulation.
Final Adjustments for the FIXED and AUTO Modes
FIXED Air Mode
1. Locate the Fixed Pressure Regulator. Note that the regulator has an ad-
justment screw with a lock nut.
2. Loosen the regulator's lock nut.
3. Place the controls to FIXED position on the Auto Sync Panel. The com-
pressor will build pressure to some value and hold (regulate).
4. Adjust the screw on the Fixed Pressure Regulator, while monitoring the air
pressure gauge, until the desired pressure is reached. Turning the screw
pressure.
AUTO Air Mode
1. Place the Auto Sync controls to the AUTO position with the fire pump op-
erating at 100 P.S.I.G. main discharge and minimal flow.
2. Monitor main water discharge pressure gauge and the air pressure gauge.
The pressure readings should be the same. If not, go to Step 3.
Air Inlet Trim Valve (AITV)
3. Close the trim valve in half turn increments if the air pressure is too high.
Monitor both water and air pressure gauges until the pressures match.
Once the pressures match, no further adjustments are needed and go to
Step 5. If the air pressure is too low, open the trim valve a half turn then
check water and air pressure gauges. If the air pressure is still too low,
open the trim valve a half turn. If the air pressures match, no further ad-
justments are needed and go to Step 5. However, if you air pressure is still
too low, go to Step 4.
Note that the Air Inlet Trim Valve is now four turns open from fully closed. It is
not desirable to have the trim valve open more than four turns. To extend the
trim valve's range, use the Balance Trim Valve (BTV).
4. Close the BTV one turn from the fully open position. Check the water and
air pressure gauges. If the air is still too low, again close the BTV one turn
and check the gauges. Keep repeating the process until the air pressure
matches or is slightly higher than the water pressure. The final adjustment
can be done using the AITV and Step 3.
5. Verify the piloted balance valve is performing by varying the fire pump dis-
charge pressure and monitoring the water and air pressure gauges. The
air pressure should follow and match the water pressure. If not, repeat the
final adjustment procedure.