Table of Contents
Advertisement
Code
TITLE
No.
"Auto" or "Auto1" menu includes the: P0, P1, P2, P3, P4, P5, P6 and rSLts. "Auto2" menu in-
cludes P0, P1, P2, P3, P4, P5, P6, P7, P8, P9, P10 and rSLts. "Auto3" menu includes P0, P1,
P2, P3, P4, P5, P6, P7 and P8.
P0-0
Pre-Trip Initiated
P1-0
Heaters Turned On
P1-1
Heaters Turned Off
P2-0
Condenser Fan On
P2-1
Condenser Fan Off
Low Speed
P3
Evaporator Fans
Low Speed
Evaporator Fan
P3-0
Motors On
Low Speed
P3-1
Evaporator Fan
Motors Off
T-334
Downloaded from
ManualsNet.com
Table 3- -7 Controller Pre-Trip Test Codes (Sheet 1 of 4)
All lights and display segments will be energized for five seconds at the start of
the pre-trip. Since the unit cannot recognize lights and display failures, there are
no test codes or results associated with this phase of pre-trip.
Setup: Heater must start in the OFF condition, and then be turned on. A current
draw test is done after 15 seconds.
Pass/Fail Criteria: Passes if current draw change is within the range specified.
Setup: Heater must start in the ON condition, and then be turned off. A current
draw test is done after 10 seconds.
Pass/Fail Criteria: Passes if current draw change is within the range specified.
Requirements: Water pressure switch or condenser fan switch input must be
closed.
Setup: Condenser fan is turned ON, a current draw test is done after
15 seconds.
Pass/Fail Criteria: Passes if current draw change is within the range specified.
Setup: Condenser fan is turned OFF, a current draw test is done after
10 seconds.
Pass/Fail Criteria: Passes if current draw change is within the range specified.
Requirements: The unit must be equipped with a low speed evaporator fan, as
determined by the Evaporator Fan speed select configuration variable.
If the unit is configured for single evaporator fan operation, Pre-Trip tests
P3-0, P3-1, P4-0 and P4-1 will fail immediately if Controller alarm codes
AL11 or AL12 are active at the start of testing.
Setup: The High Speed Evaporator fans will be turned on for 10 seconds, then
off for two seconds, then the low speed evaporator fans are turned on. A current
draw test is done after 60 seconds.
Pass/Fail Criteria: Passes if change in current draw is within the range speci-
fied. Fails if AL11 or AL12 activates during test for units operating with single fan
only.
Setup: The Low Speed Evaporator fan is turned off, a current draw test is done
after 10 seconds.
Pass/Fail Criteria: Passes if change in current draw is within the range speci-
fied. Fails if AL11 or AL12 activates during test for units operating with single fan
only.
search engine
DESCRIPTION
NOTE
NOTE
3--24
Advertisement
Table of Contents
