Neptune Systems Aqua Controller Jr: This is one item that has saved me numerous times from overheating.

Here is my program for my ACJR:

• MHL-A01; // 250W Metal Halide Left
• MHR-A02; // 250W Metal Halide Right
• ML-A03; // Seio 820 Left
• PMR-A04; // Seio 820 Right
• SKM-A05; // Vertex IN-180 Skimmer
• HTR-A06; // Heater
• FNC-A07; // Fan Canopy
• RTN-A08; // Mag 7 Return

 Turn on SKM and Display Pumps at startup

• If Time > 00:00 Then SKM ON
• If Time > 00:00 Then PML ON
• If Time > 00:00 Then PMR ON

Turn on Left Halide at 5pm and off at 11pm

• If Time > 17:00 Then MHL ON
• If Time > 23:00 Then MHL OFF

Turn on Right Halide at 5pm and off at 11pm

• If Time > 17:00 Then MHR ON
• If Time > 23:00 Then MHR OFF

Control Temperature

• If Temp < 78.0 Then HTR ON
• If Temp > 78.0 Then HTR OFF

Manage Fans

• If Temp > 80.0 Then FNC ON
• If Temp < 78.5 Then FNC OFF

High Temp Shutoff

• If Temp > 83.0 Then MHL OFF
• If Temp > 83.0 Then MHR OFF
• If Temp > 84.5 Then SKM OFF
• Max Change 045 M Then MHL OFF
• Max Change 045 M Then MHR OFF

Feed Mode, shut off seios and SKM, after 15 minutes (feed interval) turn on seios, SKM stays off an extra 10 minutes.

• If Feed cycle Then PML OFF
• If Feed cycle Then PMR OFF
• If Feed cycle Then SKM OFF
• Max Change 025 M Then SKM OFF