Coopra Advanced Heating Technologies Installation manual E40C
5
Status Reading
1.3.1. Normal state (continuous code)
P
With initialisation and after restoration of supply power de-aeration programme runs for 2 minutes.
The boiler pump and 3-way valve (if applicable) switch several times, with the purpose to move
eventual air out of the boiler; burner off
0
Stand-by (no heat demand)
C
Heating heat demand, temperature above setpoint, burner off
C.
Heating heat demand, temperature below setpoint, burner on
J
Heating heat demand, 3 minutes anti-cycling time, burner off
c
Pump after run heating mode, burner off
d
DHW heat demand, temperature return sensor of Combi-boiler above setpoint, burner off
d.
DHW heat demand, temperature return sensor of Combi-boiler below setpoint, burner on
b
HWS heat demand, temperature external cylinder above setpoint, burner off
b.
HWS heat demand, temperature external cylinder below setpoint, burner on
o
Frost protection 8°C; burner off, pump on
o.
Frost protection 3°C; burner on, pump on
C
flashing
Chimney sweeper function (ionisation current on the right hand segments)
Status Reading
1.3.2. Blocking state (continuous code)
2
Return sensor temperature 5°C above flow sensor temperature, pump on, burner off
6
Combi boiler internal tank sensor not connected or open (parameter H=01)
6.
Combi boiler internal tank sensor shortcut fault (parameter H=01)
9
Flow or return sensor temperature > 95°C
A
Flue gas sensor temperature > 100°C
b/r
Hot water on right unit of TWIN boiler
E
No SLAVE connected / PCB is set as MASTER, (parameter A=0)
SLA/01
No MASTER connected / PCB is set as SLAVE, (parameter A=1)
P
Water pressure low or high, display shows ‘P’+ pressure
t
Outdoor sensor summer switch on, burner off, (parameter O/t)
Status Reading
1.3.3. Lock-out state (flashing code)
1
Max delta temperature, differential temperature between flow and return sensor limits 50°C
1
Boiler does not pass temperature test. After burner start the flow sensor must rise 3°C more in
temperature than return sensor within 20 seconds (after 3 start attempts follows lock-out)
2
Flame signal lost 3 times during operation
5
Fan speed error (fan speed deviates > 30% from the speed setpoint)
8
Flame signal detected with closed gas valve
9
Eeprom programmed (to reset press the Set/Reset button)
A
Flue gas temperature > 100°C for more then 3 times within 30 minutes
E
Internal regulation fault / A/D conversion fault (depending type of error display shows ‘E’ or “EEE”)
E t1
Flow sensor open or shortcut fault
E t2
Return sensor open or shortcut fault
E t3
Flue gas sensor open or shortcut fault
F
Too many (4 times) consecutive start attempts
H
Flow or return sensor temperature > 105°C
O
Safety limiter contact is open (no limiter on this boiler, contacts bridged)