14
NUMBER
DEFINITION
12
S1 temperature high
13
S2 temperature high
14
Flue temperature high
16
Regulation temperature high
17
Not enough water flow
21
Anti-cycling CH
23
max flue pressure switch/ max start cycles
25
Max temperature increase limiting CH
26
24 V to low
30
Water level low 1
31
Water level high 1
32
Water level low 2
33
Water level high 2
Table 11
D. LOCKOUT CODES
LOCKOUT CODES (INPUT REGISTERS 30016, 30025, 30029, 30033, 30037, 30041, 30045, AND 30049)
NUMBER
DEFINITION
240
Flue thermostat open
239
Safety thermostat open
237
False Flame
236
APS stuck open
235
APS stuck closed
233
No flame after ignition
232
No flame during running
230
Fan fault
204
Parameters damaged
205
Parameters programmed
206
Error during programming
207
Parameter EEPROM failure
190
S1 maximum temperature
191
S2 maximum temperature
192
S1 shorted
193
S1 interrupted
194
S2 shorted
195
S2 interrupted
196
Low water lockout
197
Flue sensor shorted
198
Flue sensor interrupted
199
Low water lockout 2
185
ECS6 temperature lockout
186
ECS7 temperature lockout
Table 12
E. STATUS CODES
STATUS CODES (INPUT REGISTERS 30014, 30023, 30028, 30032, 30036, 30040, 30044, AND 30048)
NUMBER
DEFINITION
0
Standby
96
Running
100
DHW Mode or Blocking for Cascade
101
Low Water Blocking
Table 13
F. CONFIGURATION BITS
Address 40001 contains configuration bits sent from the BAS to the appliance. These bits tell the appliance to use its own internal
inputs, or inputs from the BAS. When a bit is set to 1, the appliance will ignore the corresponding value contained internally and expect
the BAS to write that value into the holding registers.
The configuration bits are as follows:
