AV30 PRE-INSTALLATION REQUIREMENTS | AV30 Pre-Installati on Requirements | v. 3.0
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CHILLER FILLING & STARTUP
Proceed with this step ONLY after the AV30 is fully assembled and the chiller plumbing
circuit is complete, including the blue hoses connected from the AV30 to the ball valves
on the wall.
System requirements
Use this chart to determine your recommended propylene:water ratio. If you have any doubts,
please call MTA-USA.
The total volume of your water/glycol mixture is around 80 gallons total.
Propylene Glycol Relative to Freeze Point
Propylene Glycol
Solution (%)
0% 10% 20%
30%
40%
50%
60%
Temperature (F)
°
Freezing Point
32
°
26
°
18
°
7°
(-8)
°
(-29)°
(-55)°
Fill the Chiller
1. Premix your desired ratio of propylene glycol and water in a clean, 30 gal. reservoir.
2. Make sure all valves throughout the chilling lines are open before filling
3. Power on the sump pump and fill through the top of the expansion tank on the
backside of the chiller unit.
4. Keep topping off the expansion tank, and allow it to drain down three quarters of the
tank before refilling. DO NOT allow the tank to drain completely and allow air into the
system.
5. Once the system has roughly 50 gallons, press the “SNOWFLAKE” button on the
digital control panel on the front of the unit.
6. The water will begin to cycle and push air back to the expansion tank
7. During this process the system will turn on and off numerous times(20-30) as it pushes
the air out of the lines.
8. You should receive an AEFL alarm during this process. This is normal during initial
startup.
9. You will need to reset this alarm and restart the unit by pressing the “menu” and “set”
buttons
10. To reset from AEFL, press the “menu” button until ALRN(Alarm) is displayed, then
press “set” 1 time
11. Now you should see “RST”(reset) above ALRN. Press set again to reset the alarm and
