Page 24
Electronic Control
Integrated (
Integrated (
700-
700-
2) Series
2) Series
3-14
#
3756780
- Revision D - July, 2005
J6
J5
J3
E2
E7 E10 E6
J2
J1
J7
J4
J5
J7
J3
J2
E2
E6
E10
E7
J1
J4
LOW VOLTAGE
J6
HIGH VOLTAGE
CONDENSER
FAN MOTOR
NEUT
115 VOLTS
60 CYCLES
L1
FREEZER
FAN
SWITCHES
FREEZER
FAN MOTOR
WHITE
BLACK
PURPLE
WHITE
PURPLE
RED
MEMBRANE SWITCH
DISPLAY
VSPEED
CONTROL
BOX
PINK W/RED
PINK W/BLACK
YELLOW W/BLACK
YELLOW W/RED
V SPEED
CONTROL
BOX
BROWN
BLACK
LT. BLUE
M
M
PIN 1
PIN 1
PIN 1
PIN 1
PIN 1
PIN 1
PIN 1
M
FREEZER
COMPRESSOR
BLUE W/BLACK STRIPE
BLUE W/BLACK STRIPE
FRZ CAB
THERMISTOR
Figure 3-17. 700TF/I-2V Signal Trace Schematic of Compressor Electrical System
3. Microprocessor
monitors speed
commands sent to
compressor con-
troller. If 4000
RPM speed com-
mand is observed
continuously and
for extended peri-
ods, SERVICE
flashes on LCD.
2. 115 volts AC supplied to
compressor controller
1. High offset temp
reached, calling
for cooling
Monitor Speed Signal of Variable Speed Compressor Controller, Displays If Service may be Needed
(700TF/I-2V)
If the microprocessor continually sends commands to operate the compressor at highest speed (4000
RPM) for extended periods, a signal is sent to the SERVICE annunciator on the LCD to flash
NOTE:
Speed commands will normally vary at 0, 1600, 1700, 1800, 2100, 2200, 2400, 2700, 3600 and 4000 RPM.
NOTE:
Disconnected wires between the controller and J3 on the control board could also cause the SERVICE
annunciator to flash. This will be covered in the Troubleshooting Guide section of this manual.
NOTE: