Bosch ACS 753 User Manual

ACS 753, ACS 763, ACS 863 Service Manual
SP00D00609 2018-03-26Robert Bosch GmbH
33
Diagnostics and Testing
Input Test
The input test displays the current state of
the measurable parts of the unit such as the
amount of refrigerant, temperatures, and the
various pressures present within the unit. The
values shown are absolute and indicate what is
happening within the unit at any given moment
during operation. The values are observable
only and cannot be changed or deleted. They
can indicate whether a sensor or device is
operating within the required limits for proper
unit operation.
1. From the Service Menu, scroll to Input Test.
2. Select OK icon. The following displays:
Placeholders X and Y represent numbers
displayed during this test. A list of the sensors
and devices and what the values represent
follows:
OUTPUT TEST
Tank liquid solenoid S22
Fan
Vacuum Pump
Compressor
Beacon
Alert Beeper
3. As the tests are highlighted, select
ON/OFF icon. The state will change from 0
to 1. There should be a click heard as the
solenoids are energized, the motors of the
fan, vacuum pump, and compressor should
start, the beacon, if installed will ash once,
and the beeper will sound.
4. When the test is complete, select BACK
icon to return to the Service Menu.
INPUT TEST
Sensor or
Device
Value
Format
Property
ISV Weight X.XXXYY ISV Weight
PAG Weight X.XXXYY PAG Weight
POE Weight X.XXXYY POE Weight
Dye Weight X.XXXYY Dye Weight
Drain Weight X.XXXYY Drain Weight
LS Press X.XYYY Low-Side Pressure
AC Press X.XYYY Accumulator
Pressure
ISV Press X.XYYY ISV Pressure
ISV Temp X.X
0
Y ISV Temperature
Amb Temp X.X
0
Y Ambient Temperature
HP Sw X High-Pressure Switch
Overll X ISV Liquid Quantity
Air Flow XXXXrpm Fan Air Flow
3. Scroll through the sensors or devices to
observe their values. When nished, select
BACK icon to return to the Service Menu.
Calibrateairow
The air ow inside the unit must be present at
the correct volume to make sure enough air
is present to prevent the buildup of refrigerant
and to keep the compressor temperature below
its upper limit.
1. From the Service Menu, scroll to Calibrate
airow.
2. Select OK icon. The following displays:
3. Check :
• Unit is with covers.
• Fun is clean and running.
4. Select OK icon, and wait unit is performing
calibration automatically.

Bosch ACS 753 Specifications

General

Brand	Bosch
Model	ACS 753
Category	Air Conditioner
Language	English