Product manual

22
Diagnostic Initialization Message (ZX MT and LT Units)
When the unit is initially powered on, the diagnostic module will show the following signal.
(1 second)-
>
- Power On
- Unit Identification Code
- Software Version No.
(3 second)-
>
(3 seconds)-
>
“F”-With OD Fan Speed Control; “-”- W/O OD Fan Speed Control
“L”- ZXL; “-” - ZX
E2 control board dip switch setting
The E2 control board has 2 dip switches (2-bit and 3-bit) and 1 rotary switch. The rotary switch and the 2-bit dip switch are used in
combination to select the compressor used on the unit. The selected compressor relates to the over-current-limit for the specified unit.
The 3-bit dip switch is used if the customer chooses to use the E2 control for evaporator fan control.
Fig 12 shows the dip switches and rotary switch in the E2 control board.
2-Bit Dip Switch
3-Bit Dip Switch
Rotary Switch
E2 Control Board
Figure 12