| RE | Z-180001 to Z-489999 | 1998 |
| RLX | ZQ-180001 to ZQ-489999 | 1998 |
| SE | Y-180001 to Y-489999 | 1998 |
| SLX | YQ-180001 to YQ-489999 | 1998 |
Note: This is the main circuit board located in the control box. The two "Add-On" relays (34321) are for the heater and the heater interlock and are sold separately.
