Manual
Slant Fin Corp. │ Installation and Operation Instructions CHS Series
76
Table 15-4 Alert Codes
Code
Description
50
Maximum hours count was reached
51
Illegal Modbus write was attempted
52
Modbus write attempt was rejected (NOT ALLOWED)
53
Illegal Modbus read was attempted
54
Safety processor brown-out reset occurred
55
Application processor watchdog reset occurred
56
Application processor brown-out reset occurred
57
Safety processor watchdog reset occurred
58
Alarm was reset by the user at the control
59
Burner control firing rate was > absolute max rate
60
Burner control firing rate was < absolute min rate
61
Burner control firing rate was invalid, % vs. RPM
62
Burner control was firing with no fan request
63
Burner control rate (non-firing) was > absolute max rate
64
Burner control rate (non-firing) was < absolute min rate
65
Burner control rate (non-firing) was absent
66
Burner control rate (non-firing) was invalid, % vs. RPM
67
Fan off cycle rate was invalid, % vs. RPM
68
Set point was over ridden due to sensor fault
69
Modulation was over ridden due to sensor fault
70
No demand source was set due to demand priority conflicts
71
CH 4-20mA signal was invalid.
72
Flame strength rate differential was invalid
73
Flame strength step rate was invalid
74
Periodic forced recycle
75
Absolute max fan speed was out of range
76
Absolute min fan speed was out of range
77
Fan gain down was invalid
78
Fan gain up was invalid
79
Fan minimum duty cycle was invalid
80
Fan pulses per revolution was invalid
81
Fan PWM frequency was invalid
82-83
RESERVED
84
Lead Lag CH 4-20mA water temperature setting was invalid
85
No Lead Lag add stage error threshold was configured
86
No Lead Lag add stage detection time was configured
87
No Lead Lag drop stage error threshold was configured
88
No Lead Lag drop stage detection time was configured
89
Lead Lag all boiler off threshold was invalid
90
Modulation output type was invalid
91
Firing rate control parameter was invalid
92
Forced rate was out of range vs. min/max modulation
93
Forced rate was invalid, % vs. RPM
94
Slow start ramp value was invalid
95
Slow start degrees value was invalid
96
Slow start was ended due to outlet sensor fault
97
Slow start was end due to reference set point fault
98
CH max modulation rate was invalid, % vs. RPM
99
CH max modulation rate was > absolute max rate