34 • dap4 User Manual
Setpoints
Temp Setpoint:
72
°
F
Temp Deadband
2
°
F
Stage-to-stage: 0.3
°
F
Superheat:
6.0
°
F
EEV – Electronic Expansion Valve
When unit has electronic expansion valve the following screen will be displayed (values are for
reference only):
Compressor Settings
Type:
Dual Primary
Control:
Return Temp
Electronic Valve:
Dual
HP Lockout:
None
Delay btw stages:
60s
NOTE: This screen only appears when the “Electronic Valve” is selected as “One” or “Two” in
Menu J - Factory Setting - Compressor Settings screen.
Super Heat:
The current value of refrigerant super heat
Suction Temp:
The current value of refrigerant suction temperature
Suction Pres:
The current value of refrigerant suction pressure
Move the cursor to the title block by pressing the ENTER key stepping through all the inputs.
To return to the main Menu press the Esc key or to view the following screen press the DOWN
key.
Super Heat setpoint can be changed on Menu B - Setpoint. Recommend to consult with factory
before changing this setting.
HP Lock-out Logic:
Optional High pressure lock-out setting on Menu J - Factory Settings in compressor settings
screen is selected to Max 2/Hr (two resets per Hour) or 3/Hr (3 resets per Hour), the compressor
control signals will be terminated after 2 or 3 times of HP reset. It is requires to press and hold
silence button while HP alarm message shows on LCD to reset the circuit. Optional auto reset
high pressure cut-out is recommended to use in this logic. Default setting is “None” with standard
manual reset switch.
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