Carrier 17/19EX To Prevent Accidental Start-Up

RLA by manually overr idi ng the guide vane target val ue on the LID and setting the chilled
water set point to a low val ue. Do not exce ed 105% of th e nameplate RLA.
3. When a steady motor current value in the desired range is met, compare the compressor
motor amps value on the Status01 screen to the actual amps shown o n the ammeter on the
starter. Adjust the am ps v alu e on the LID to the actual value se en at the starter if there is a
difference. Highlight the amps value then press SELECT. Press INCREASE or DECREASE
to bring the value to tha t in dicated on the ammeter. Pr es s E NT ER when equal.
4. Make sure that the targ et guide vane position is rele ased into AUTOMATIC mode .
To Prevent Accidental Start-Up
The PIC can be set up so that sta rt-up of the unit is more di ff ic u lt than just pressing the
LOCAL or CCN softkeys during machine service or when necessary. By accessing the
Status01 screen, a nd highlighting the c hiller Start/Sto p line, the value can be overridden to st op
by pressing SELECT and then the STOP and ENTER softkeys. ‘‘SUPVSR’’ will appear after the
value. When attempting to restart, remember to release the override. The default machine
message line will also state that the St art/Stop has been set to ‘‘Start’’ or ‘‘Sto p’’ when the value
is overridden.