User Alarms - Ferroli RHV R134a Instruction Manual

USER ALARMS

They are only manual reset alarms and concern solely the machine's components (compressors, fans, pumps, sensors, pres-
sure switches, etc.) and do not involve the HW and SW operation of the micro-controller.
in order to restart the system it is necessary:
- removing the cause of alarm
- to reset manually the alarm from the alarm submenu
If there are no active user alarms, the "EMPTY" string is displayed for 2 seconds.
User alarms table
Alarms shown on display
high temperature water evaporator
evaporator 1 antifreeze
circuit 1 high press auto/man
circuit 2 high press auto/man
Circuit 1 low pressure
Circuit 2 low pressure
compressor 1 thermal protection
compressor 2 thermal protection
compressor 1A thermal protection
compressor 1B thermal protection
compressor 1C thermal protection
compressor 2A thermal protection
compressor 2B thermal protection
compressor 2C thermal protection
Compressor 1 discharge temp
Compressor 2 discharge temp
evaporator pump A unavailable
evaporator pump B unavailable
evaporator pump A thermal protection
evaporator pump B thermal protection
evaporator water flow
evaporator 1 water flow
fans 1 thermal protections
fans 2 thermal protections
Heat recovery pump A thermal protections Heat recovery pump A
Heat recovery pump B thermal protections Heat recovery pump B
heat recovery pump A unavailable
heat recovery pump B unavailable
heat recovery water flow
Circuit 1 EEV alarm
Circuit 2 EEV alarm
Immediate stop chiller
28
MONITORING SYSTEM - Alarms
Components involved
evaporator water inlet probe
evaporator water outlet probe
circuit 1 high press transducer
circuit 2 high press transducer
circuit 1 low press transducer
circuit 2 low press transducer
Compressor electronic protector
Discharge pipe compressor switch (if instal-
led)
Discharge pipe compressor 1 sensor
Discharge pipe compressor 2 sensor
evaporator pump A
evaporator pump B
evaporator pump A
evaporator pump B
evaporator water differential pressure
switch and/or flowswitch.
thermal protection Fans 1
thermal protection Fans 2
Heat recovery pump A
Heat recovery pump B
differential pressure switch and/or flow
switch, recovery water heat exchanger
electronic expansion valv 1 error
electronic expansion valv 2 error
Electrical panel temperature switch
(high temperature version)
Alarm effect
Stop compressor and fan
The pump stays on
Stop compressor and fan
The evaporator pump stays on
Stop condenser pump
Stop evaporator pump A
Stop evaporator pump B
Stop evaporator pump A
Stop evaporator pump B
Stop unit with only 1 pump pre-
sent.
Swap to the other pump if two
pump are present If the alarm
persist, stop the unit.
Stop compressor and fan
The evaporator pump stays on
Stop heat recovery pump A
Stop heat recovery pump B
Stop heat recovery pump A
Stop heat recovery pump B
immediate exit
from recovery mode
Stop compressor and fan
The pump stays on
Stop the unit
Cause of alarm
Values outside limit
-Values outside limit
-current value outside limit
-electronic thermal protector
damaged
- Values outside limit
-Pump not available from the con-
troller
-current value outside limit
-no water circulation or insufficent
water flow rate
-defective sensors switch not cor-
rect
-current value outside limit
-current value outside limit
-Pump not available from the con-
troller
-no water circulation or insufficent
water flow rate
-defective sensors switch not correct
- value outside limit
- too high temperature inside the
electrical panel
- electrical panel fans damaged
- fans filters dirty
(high temperature version)