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The Microprocessor Control provides a protected TECHNICIAN MODE
to manipulate several parameters not accessible by the typical operator.
This mode also permits viewing of the factory settings to aid in
troubleshooting of the dryer. Below is a list of parameters that can be
accessed and manipulated by the technician in the TECHNICIAN
MODE:
Parameter
NO-LOSS DRAIN VALVE
ENABLE
CRANKCASE HEATER
DELAY
AUTO RESTART ENABLE
In TECHNICIAN MODE, the following parameters can be viewed but
not changed:
Parameter
CONFIGURATION (# of
sensors)
OPERATING MODE
REFRIGERANT
CONDENSER TYPE
OPERATING
TEMPERATURE
DIFFERENTIAL
SHORT CYCLE DELAY
HIGH PRESSURE CUTOUT
HIGH PRESSURE CUTOUT
DELAY
LOW PRESSURE CUTOUT
LOW PRESSURE CUTOUT
DELAY
HIGH TEMPERATURE
ALARM
LOW TEMPERATURE
ALARM
LOW TEMPERATURE
ALARM DELAY
DISCHARGE PRESSURE
TRANSDUCER
SUCTION PRESSURE
TRANSDUCER
SUCTION TEMPERATURE
PROBE
FAN 1 ON PRESSURE
FAN 1 OFF PRESSURE
FAN 2 ON PRESSURE
FAN 2 OFF PRESSURE
ALARM LIST
14
All manuals and user guides at all-guides.com
10.0 TECHNICIAN MODE
Display
Set Point
DRAIN ENABLE
ON (or OFF)
CCH DLY
8 (or 0,2,4,12 hours)
AUTO RESTART
N (or Y)
Display
Set Point
CONFIG #:
1 or 2 or 4 or 8
OP MODE:
HS or NC
REFRIG:
404
COND:
AC OR WC
T OP DIFF:
4
SHT CYC DLY:
3
HPCO:
See Table-1
HPCO DLY:
10
LPCO:
See Table-1
LPCO DLY:
00:10
HITEMP ALRM:
55
LOWTEMP
30
ALRM:
LOTEMP DLY:
2:00
Pd TRANS
Y (N)
Ps TRANS
Y (N)
Ts Probe
Y (N)
FAN1 ON:
See Table-1
FAN1 OFF:
See Table-1
FAN2 ON:
See Table-1
FAN2 OFF:
See Table-1
BEGIN ALARM
N/A
LIST
Nirvana Cycling Refrigerated Dryer Models 2000-2400
http://air.ingersollrand.com
A
10.1 ENTERING TECHNICIAN MODE
WARNING
TECHNICIAN MODE should only be entered by qualified service
personnel. Altering the set points in TECHNICIAN MODE will have a
significant effect on the operation of the dryer. Incorrect set points may
damage dryer and cause potential serious injury.
To enter the TECHNICIAN MODE, perform the following keystrokes:
2
3
Pressing the "2" and "3" buttons simultaneously enters the
TECHNICIAN MODE.
SELECT
DRAIN ENABLE: OFF
DISPLAY
Depressing SELECT DISPLAY scrolls through the available
parameters. The first three parameters viewed are adjustable in
TECHNICIAN MODE.
The
DRAIN
ENABLE
parameter
Microprocessor Control shall control an electronic no-loss drain valve. A
value of "ON" will permit the Microprocessor Control to control the drain
valve. A value of "OFF" will disable this feature. Ingersoll Rand dryers
are equipped with a no air loss drain as standard equipment. As such,
DRAIN ENABLE must remain "OFF":
SELECT
CCH DELAY: 8
DISPLAY
Depressing the SELECT DISPLAY button advances to the
next adjustable parameter for the Crankcase Heater Delay.
This parameter must not be altered unless instructed by
Ingersoll Rand Service personnel.
A
NOTICE
The Crankcase Heater Delay set point must not be altered unless
directed by Ingersoll Rand Service Personnel. Improperly altering the
set point may result in damage to the dryer. Contact Ingersoll Rand
Compressed Air Solutions before altering the default set point.
TECH SET MODE
determines
whether
the
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