OMM 1130-2 63
WGZ Unit (R22,R407C,R410A) TGZ Unit (Refrig = 134a)
TGZ Unit in Cooling Mode . TGZ Unit in Heat Mode.
TGZ Unit Heat Mode.
Two f
our-digit passwords provide OPERATOR and MANAGER levels of access to changeable
parameters. The passwords are preprogrammed into the controller. Either password must be entered
using the ENTER PASSWORD (12) screen before a protected setting can be changed. The operator
password is 0100. The manager level is 2001.
This screen can be accessed either through the SET OTHER menu or by simply pressing the ENTER key
while on one of the SET screens. The controller will automatically go from the screen with the setting
change to this screen. After the correct password has been entered, the controller will automatically
return to the original set screen.
Once a password has been entered, it remains valid for 15 minutes after the last key-press.
Set Compressor Setpoints
This menu sets the anti-recycle timers. Stop-Start is the time required before starting a compressor after it
has stopped. Start-Start is the time required before starting a compressor after the last time it has started.
It is recommended that the default values of 5 minutes and 15 minutes not be changed.
InterStageUp is the time delay since the last stage change before a compressor can stage on, default is 120
sec.
InterStageDn is the time delay since the last stage change before a compressor can stage off normally (not
by an alarm). Default is 30 sec. It is recommended that these settings not be changed.