Honeywell 7800 Series Product Data page 56

7800 SERIESS7800A2142 4-Line LCD Keyboard Display Module
Burner Control Type Codes
The burner control type code indicates the
exact model number of the burner control.
See Table 18.
CODE DEVICE DESCRIPTION
0 (undefined)
100 RM7800E
101 RM7800G
102 RM7800L
103 RM7800M
104 RM7838A
105 RM7838B
106 RM7840E
107 RM7840G
108 RM7840L
109 RM7840M
110 RM7885A
111 RM7888A
112 RM7890A
113 RM7895A
114 RM7895B
115 RM7823A
116 RM7824A
117 RM7830A
118 RM8738C
119 RM7845A
120 RM7850A
121 RM7865A
122 RM7865B
123 RM7865C
124 RM7890B
125 RM7890C
126 RM7890D
127 RM7895C
128 RM7895D
129 RM7895E
130 RM7895F
131 RM7896A
132 RM7896B
133 RM7896C
134 RM7896D
135 RM7897A
136 RM7897C
137 RM7898A
138 R7140G
139 R7140L
140 R7140M
199 RM78xx
32-00110-07
CODE DEVICE DESCRIPTION
200 EC7810A
201 EC7820A
202 EC7830A
203 EC7850A
204 EC7885A
205 EC7890A
206 EC7895A
207 EC7895C
208 EC7823A
209 EC7840L
210 EC7865
299 EC78xx
Table 18. Burner Control Type Codes.
7800 SERIES Burner Control State
Bits
The burner control sequence state is
translated into State Bit Register as shown
in Table 19.
BIT Description
0 Initiate
1 Standby
2 Purge
3 Pilot Ignition 0000 0000 0000 1000
4 Main Ignition 0000 0000 0001 0000
5 Run
6 Postpurge
7 Pre-Ignition
8 Valve Proving 0000 0001 0000 0000
13 Alarm
14 Hold
15 Lockout
Table 19. Burner Control State Bits.
7800 SERIES Sequence State
Codes
Sequence state codes are provided by the
Burner Control. Each code is translated
into two string codes for displaying an
associated message in two lines. Each code
is also translated into burner control state
bits which may be used to generate and
control system diagrams on an operator
interface. The codes can also be retrieved
from registers 40004, 40005, and 40013.
The Sequence State Codes shown in Table
20 are valid only if the Fault Code has a
56
BC State Bits Register
0000 0000 0000 0001
0000 0000 0000 0010
0000 0000 0000 0100
0000 0000 0010 0000
0000 0000 0100 0000
0000 0000 1000 0000
1010 0000 xxxx xxxx
NOTE: Lockout bit is also
set.
0100 0000 xxxx xxxx One
other bit may be on.
1010 0000 0000 0000
NOTE: Alarm bit is also set.