3-3
IMPORTANT NOTE
It is suggested that a licensed electrician perform the wiring needs for this application to ensure the electrical connections are made in accordance
with the NEC and local codes and standards.
FS1 Specifications:
Compressor Specifications
a. 10 Amp Max @ 110 VAC
a. 120 VAC
b. 0.5 gpm minimum actuation flow
b. 1/16 HP
c. 110˚ F maximum temperature
c. 0.05 KW
d. 1575 RPM (@ 60Hz)
GAST LOA-P109-AA Compressor Set-Up:
1. Screw assembly ARVTA-1X into the 1/4” threaded hole on top of air release tank in the tank head. Attach the 3/8” polyethylene tubing to the top of the
air release valve. To be able to do so remove the red cap and slip tubing over the threaded boss of the air release valve. The ARTVA-1X assembly can be
found in its own box in the aeration tank shipping box. This tubing needs to be run to a waste drain to accommodate water that may be expelled during
the venting cycles. It is recommended to keep the tubing as short as possible to ensure proper performance in venting air and water correctly. Ensure the
air release valve is open by examining the side of the air release valve (see Figure 3). It should always remain open.
WARNING
To reduce the risk of physical injury:
•
Do not operate system with air release valve (ARVTA-1X) in the closed position.
2. The air release fitting requires adjustment before the system is operational. Your water system operating pressure range
needs to be determined to allow for adjustment of the air release valve. This can be performed by observing the pressure
gauge on your pressure tank while the well pump is running. If you are on a municipal, community or constant pressure /
variable speed pump observe the pressure in the water system on the water line.
3. Locate and install the MAXRETRO kit into the quick connect check valve on the air release tank prior to adjusting the air
release valve mounted on the air compressor, see Figure 4. If you’re replacing the compressor on an older style system with
threaded nut fittings, cut the 1/4” polyethylene tubing about 2 inches above the nut. Care needs to be taken to ensure the
tubing is cut square and clean. Remove the 1/4” polyethylene from the MAXRETRO kit and slide the union connector onto the
1/4” polyethylene tubing left in the threaded nut, see Figure 4.
NOTE: Relive any pressure from the aeration tank before cutting the tubing.
4. Connect the GAST LOA-P109-AA Compressor to either the pressure switch or flow switch; please note the compressor is rated for 110 VAC, minimum
15 amps, 60 cycles. Be sure the plug is installed in the Compressor Assembly as shown in Figure 4 during this step. Start the GAST LOA-P109-AA
Compressor. by running water down stream of the pressure tank or flow switch. Open the brass air release mechanism on the side of the compressor.
Control the setting by turning the adjustment nut in or out to set the operating pressure of the GAST LOA-P109-AA Compressor. The correct adjustment
would be when the pressure gauge maintains a pressure of 10 to 15 pounds less than the shut off pressure of the water system. Once the adjustment
is correct, lock the setting by tightening the second nut on the air release mechanism to secure the setting.
5. Once the air release mechanism is adjusted, turn off the GAST LOA-P109-AA Compressor, relieve pressure on the air release tank by opening the air
release valve. Remove the plug from the quick release elbow on the air compressor and the MAXRETRO fitting on air release tank. Connect the 1/4”
polyethylene tubing between the two quick connect fittings. Ensure the tubing is seated correctly into the quick connect fittings. The MAXRETRO will
need to stay in place if you are replacing the compressor on an older style system. In this case, just remove the plug from the MAXRETRO kit.
6. Pressurize the water system and check for leaks, correct
as needed.
Please visit GAST’s website @ www.gastmfg.com for their in-
struction manual and additional information
(http://www.gastmfg.com/pdf/OM/saa_soa_RP_OM.pdf)
Figure 3
Figure 4
AIR RELEASE FITTING
PLUG
AERATION TANK
ARVTA-1X
AIR RELEASE VALVE
MAXRETRO
QUICK CONNECT
CHECK VALVE
QUICK CONNECT
FITTING
