28
ALT-123
Sensor Alert -
VFD Speed Out
Of Range
Automatic when
the situation
comes back to
normal
Alert Relay is ON
Check VFD speed feedback input in ISM
ALT-124
Sensor Alert -
Humidity Sensor
Automatic when
the situation
comes back to
normal
Alert Relay is ON
Check humidity sensor input in IOB
ALT-125
Sensor Alert -
Refrigerant Leak
Input
Automatic when
the situation
comes back to
normal
Alert Relay is ON
Check refrigerant leak optional input in IOB
ALT-126
Sensor Alert –
Diffuser Pos
Feedback
Automatic when
the situation
comes back to
normal
Alert Relay is ON
Check Diffuser Position feedback
ALT-127
Sensor Alert -
VFD Current
Input
Automatic when
the situation
comes back to
normal
Alert Relay is ON
Check VFD current input
ALT-128
Sensor Alert -
High Cond Water
Pressure
Automatic when
the situation
comes back to
normal
Alert Relay is ON
Check optional condenser water pressure sensor. Check condenser
water flow
ALT-129
Sensor Alert -
Leaving Cond
Water Temp
Automatic when
the situation
comes back to
normal
Alert Relay is ON
LEAVING CONDENSER WATER temperature sensor reading is out of
range. Check LEAVING CONDENSER WATER sensor resistance or
voltage drop. Check for proper wiring to IOB. Check for grounded sensor
leads.
ALT-130
Sensor Alert -
Entering Cond
Water Temp
Automatic when
the situation
comes back to
normal
Alert Relay is ON
Entering Condenser Water temperature sensor reading is out of range.
Check Entering Condenser Water sensor resistance or voltage drop.
Check for proper wiring to IOB. Check for grounded sensor leads.
ALT-131
Sensor Alert -
Entering Cond
Water Press
Automatic when
the situation
comes back to
normal
Alert Relay is ON
Check Entering Condenser Water pressure sensor voltage drop. Check
for proper wiring to IOB. Check for grounded sensor leads
ALT-132
Sensor Alert -
Entering Chilled
Water Press
Automatic when
the situation
comes back to
normal
Alert Relay is ON
Check Entering Chilled Water pressure sensor voltage drop. Check for
proper wiring to IOB. Check for grounded sensor leads.
ALT-133
Sensor Alert -
Leaving Cond
Water Press
Automatic when
the situation
comes back to
normal
Alert Relay is ON
Check Leaving Condenser Water pressure sensor voltage drop. Check
for proper wiring to IOB. Check for grounded sensor leads.
ALT-134
Sensor Alert -
Leaving Chilled
Water Press
Automatic when
the situation
comes back to
normal
Alert Relay is ON
Check Leaving Chilled Water pressure sensor voltage drop. Check for
proper wiring to IOB. Check for grounded sensor leads.
ALT-135
Sensor Alert -
Guide Vane 1
Position
Automatic when
the situation
comes back to
normal
Alert Relay is ON
Check guide vane 1 position feedback
ALT-136
Configuration
Error - Temp
Reset
Automatic when
the situation
comes back to
normal
Alert Relay is ON
Check temp reset configurations
ALT-137
Configuration
Error - Controlled
Water Delta T
Reset
Automatic when
the situation
comes back to
normal
Alert Relay is ON
Check controlled water temp reset configurations
ALT-138
Configuration
Error – Head
Pressure
Automatic when
the situation
comes back to
normal
Alert Relay is ON
Check head pressure configurations
ALT-139
Sensor Alert -
Guide Vane 2
Position
Automatic when
the situation
comes back to
normal
Alert Relay is ON
Check guide vane 2 position feedback
ALT-146
Process Alert -
High Ref Filter
Delta Pressure
Automatic when
the situation
comes back to
normal
Alert Relay is ON
Reset shall be automatic when the situation comes back to normal
ALT-147
Process Alert -
Drainage System
Failure
Automatic when
the situation
comes back to
normal
Alert Relay is ON
Reset shall be automatic when the situation comes back to normal
Table 15 — PIC6 Alert Codes* (cont)
ALERT CODE
DESCRIPTION
OF ALARM TEXT
RESET TYPE
ACTION TAKEN BY
THE CONTROL
POSSIBLE CAUSE