Serial Number prior to 94180

• Thermostats are ELX-560-213

  Serial Number prior to 98570  (mid model upgrade)

• 3 zones + engine circulation pump PLX-809-200
• Uses 4 thermostats.   Diesel Control (Blue Dot) ELE-L08-190 Diesel High Limit (Black Dot) ELE-L08-230 Electric Control (Red Dot) ELE-010-198  Electric High Limit (White Dot) ELE-254-010
• 1650 watt electric element ELX-2E7-540
• Mixing valve  PLX-4A8-180  - Rebuild kit PLX-4A8-18R
• Radiator Cap - PLX-102-229 or with lever PLX-102-229-L

  Serial Number starting with 98571 (mid model upgrade)

• Fluid connections were changed.  See photo below.

  This model was produced until mid 1998 and was replaced by the AHE-101-000

  More Photos - Click on photo to make it larger

Prior to 98001    After 98001