34
Alert Code 409 (Fan Feedback Off When Not Expected) —
This alert occurs when the IDF has been on for more than
15 seconds yet the Fan Feedback is Off. Verify wiring.
Compressors will not be allowed to run until this alert clears.
Check for errors on the IGC which might have caused the IDF
to turn off.
Alert Code 410 (R-W1 Jumper Not Installed in Spare Temp
Mode) — This alert occurs when the control mode is Space
Temperature Mode via Auto Select or Space Temp Select yet
there is no power to W1. Verify that space temperature mode is
the desired mode or add jumper between R and W1. This alert
resets automatically.
Alert Code 410 (R-W1 Jumper Must be Installed to Run
Heat in Service Test) — This alert occurs when a request for a
heat output has occurred yet the W1 input is not high. A jumper
must be installed between R and W1 when trying to test heat in
Service Test. The alert will clear when Service Test is exited or
if another Service Test mode is selected. Remove jumper when
done using Service Test if the unit is operating with a Thermo-
stat. The jumper should only be left in place if the unit is oper-
ating with a Space Temperature Probe.
Alert Code 411 (Y2 without Y1) — This alert occurs in
Thermostat Mode when Y2 is energized and Y1 is not. Verify
thermostat and thermostat wiring. When Y2 turns On, the soft-
ware will behave as if Y1 and Y2 are both On. When Y2 turns
Off, the software will behave as if Y1 and Y2 are both Off.
This alert resets automatically when Y1 is turned On.
Alert Code 412 (W2 without W1) — This alert occurs in
Thermostat Mode when W2 is energized and W1 is not. Verify
thermostat and thermostat wiring. When W2 turns On, the soft-
ware will behave as if W1 and W2 are both On. When W2
turns Off, the software will behave as if W1 and W2 are both
Off. This alert resets automatically when W1 is turned On.
Alert Code 413 (Y and W Simultaneously) — This alert
occurs in Thermostat Mode when Y1 or Y2 is energized simul-
taneously with W1 or W2. Verify thermostat and thermostat
wiring. The software will enter either the cooling or heating
mode depending upon which input turned on first. This alert
resets automatically when Y1 and Y2 are not on simultaneous-
ly with W1 and W2.
Alert Code 414 (Economizer Damper Actuator Out of Cali-
bration) — This alert occurs when the economizer range of
motion is less than 90 degrees. Initiate economizer calibration
(E.CAL) using the Service Test menu. The economizer calibra-
tion procedure will try to find new maximum open and closed
positions. If the alert does not clear automatically after the cali-
bration procedure is complete, investigate what is limiting
economizer rotation. This alert resets automatically.
Alert Code 414 (Economizer Damper Actuator Torque
Above Load Limit) — This alert occurs when the actuator
load is too high. Investigate to determine what is increasing
damper load. This alert resets automatically.
Alert Code 414 (Economizer Damper Actuator Hunting
Excessively) — This alert occurs when the commanded
damper position is changing too rapidly. This alert resets
automatically.
Alert Code 414 (Economizer Damper Stuck or Jammed) —
This alarm occurs when the actuator senses it can no longer
move. Investigate what is stopping the rotation of the actuator
and fix. This alert resets automatically.
Alert Code 414 (Economizer Damper Actuator Mechanical
Failure) — This alert occurs when the actuator senses a cata-
strophic failure. Investigate actuator and replace if necessary.
This alert resets automatically.
Alert Code 414 (Economizer Damper Actuator Direction
Switch Wrong) — This alert occurs when the economizer
damper direction switch is in the wrong position. The direction
switch should be in the clockwise position and the actuator
should be mounted so that the CW face of the actuator is acces-
sible. Correct if necessary. This alert clears automatically.
202
→
Содержание 48HG016
Страница 3: ...3 Fig 1 Low Voltage Control Schematic 48HG Units...
Страница 4: ...4 Fig 2 Low Voltage Control Schematic 50HG Units...
Страница 5: ...5 Fig 3 Typical Power Schematic...
Страница 53: ......