OPERATING AND MAINTENANCE MANUAL
Chapter 7 - Electronic controller
iC 215 ÷ iC 780
39
The data in this manual are not binding and they can be modified by the manufacturer without notice. Reproduction of this manual is strictly prohibited
EN
ENGLISH
1= If probe configured for anti-freeze - water heater control and Ar10 = 0.
2= With manual reset alarm.
3= Compressors stopped with only 1 water pump configured or with 2 water pumps configured and both in thermal alarm
state.
4= water heater elements off with only 1 water pump configured or with 2 water pumps configured and both in thermal alarm
status (in this case the water heater elements are switched on only by the evaporator anti-freeze protection setpoint).
(n)= identifies circuit 1 or circuit 2
Key:
A= automatic
M= manual
R= delayed
I= instantaneous
7.11.4 Indications table
7.11.5 Probe faulty
7.11.6 High pressure switch alarm
(iC 215÷540 models only)
C(n)tr Compressor (n) thermal alarm with AL47 = 0 – 1 M I X
CODE
Alarm
Description
Alarm
Comp.
Heaters
Anti-freeze
water heater
Elements
support
Pump
Evap.
Deliv. Fan
Cond. pump
Cond.
fan
Cir1 Cir2
Auxiliary
relay
AEUn Evaporator unloading indication
b(n)Cu Unloading indication from condensing press. temp. circuit (n)
b(n)Eu Unloading indication from evaporator low temp. circuit (n)
C(n)Mn Compressor (n) maintenance
AEP1 Evaporator water pump maintenance
AEP2 Second evaporator pump maintenance
noL Indication of communication loss between keypad or
controller 2 remote terminals configured with same address
Atr(n) Remote terminal alarm
Display labels meaning AP1 probe PB1÷AP6 alarm probe PB6 alarm
Cause of trip Probe configured and converted value off range
Reset Probe not configured or converted value within range
Reset Automatic
Icon Flashing
Action Alarm relay + buzzer activated
Display labels meaning b1HP (circuit 1 high pressure digital input)
b2HP (circuit 2 high pressure digital input)
Cause of trip With unit in ON status and circuit high pressure switch input active
Reset Input inactive
Reset Reset is always manual
Icon Flashing E
Action Alarm relay + buzzer activated
Outputs block
COD. alarm
Alarm
Description
Alarm reset
Alarm Trip
Compressor
Pump
Fan
Heaters