62-11640
3–10
Test 5 - Engine High Speed
The engine switches to high speed. The control system
verifies that engine is in the high speed range and the
engine load is displayed. If the engine is not operating
in the high speed range, the P00175 - “CHECK HIGH
SPEED RPM” alarm will be activated.
Test 6 - Engine Low Speed
The engine switches back to low speed and the engine
load is displayed. The control system verifies that
engine returns to the low speed range within 10 sec-
onds. If not, the P00174 - “CHECK LOW SPEED RPM”
alarm will be activated.
Test 7 - Electric Heater Amperage Check
Each heater will be energized individually and checked
for proper current draw. An alarm will be activated for
any heater not drawing amperage in the expected
range.
P00187
−
“CHECK HEATER 1 CIRCUIT”
P00188
−
“CHECK HEATER 2 CIRCUIT”
Test 8 - Evaporator Fan Motor
The evaporator motor contactor will be energized and
the motor checked for proper current draw. An alarm
will be activated, P00189
−
“CHECK EVAPORATOR
FAN MOTOR” if the evaporator fan motor is not draw-
ing amperage in the expected range.
Test 9 - Condenser Fan Motors
The condenser fan motor contactors will be energized
and the motors checked for proper current draw. An
alarm will be activated, P00190
−
“CHECK CON-
DENSER FAN MOTOR” or P11000
−
“CHECK CON-
DENSER FAN MOTOR 2” if a condenser fan motor is
not drawing amperage in the expected range.
Test 10 - Check Suction Modulation Valve (CSMV)
This test is run to ensure that the CSMV is opening and
closing properly. If suction pressure doesn’t change as
expected with CSMV closed, then the P00180 -
“CHECK SUCTION MOD VALVE” alarm will be dis-
played.
Test 11 - Evaporator Expansion Valve (EVXV)
This test is an operational check of the EVXV. If evapo-
rator outlet pressure doesn’t change as expected with
the EVXV closed then the P00177
−
“CHECK EVXV
SUPERHEAT” alarm will be displayed.
Test 12 - Economizer Expansion Valve (ECXV)
This test is an operational check of the ECXV. If econo-
mizer outlet pressure doesn’t change as expected with
the ECXV closed then the P00173
−
“CHECK ECONO-
MIZER” alarm will be displayed.
Test 13 - Liquid Injection Solenoid Valve (LIV)
This test checks the operation of the liquid injection
solenoid valve. If compressor suction temperature
does not change when LIV is energized, the P00179
−
“CHECK LIV” alarm will be displayed.
Pretrip Termination
When the Pretrip cycle is completed, the unit will return
to normal temperature control operation. “PRETRIP
PASS” will be displayed until the operator presses the
EXIT key. In the event that the Pretrip test activates an
alarm(s), either “PRETRIP FAIL & COMPLETE” (if the
entire Pretrip cycle was completed), or “PRETRIP FAIL
IN TEST XX”, (if the Pretrip cycle was aborted by an
alarm before it was completed) will be displayed.
Summary of Contents for Vector 8500
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