Honeywell 7800 SERIES

7800 SERIESS7800A2142 4Line LCD Keyboard Display Module
39 320011007
Description
Selectable Mes-
sage/Display
Possible States/
Range (Terminals)
Comments
Burner control T9
terminal I/O state.
T9 terminal
e
ON or OFF
Indicates if input is on or off,
energized or de-energized.
Burner control T10
terminal I/O state.
T10 terminal
e
ON or OFF
Indicates if input is on or off,
energized or de-energized.
Burner control T16
terminal I/O state.
T16 terminal
e
ON or OFF
Indicates if input is on or off,
energized or de-energized.
Burner control T17
terminal I/O state.
T17 terminal
e
ON or OFF
Indicates if input is on or off,
energized or de-energized.
Burner control T18
terminal I/O state.
T18 terminal
e
ON or OFF
Indicates if input is on or off,
energized or de-energized.
Burner control T19
terminal I/O state.
T19 terminal
e
ON or OFF
Indicates if input is on or off,
energized or de-energized.
Burner control T20
terminal I/O state.
T20 terminal
e
ON or OFF
Indicates if input is on or off,
energized or de-energized.
Burner control T21
terminal I/O state.
T21 terminal
e
ON or OFF
Indicates if input is on or off,
energized or de-energized.
Pilot Flame Es-
tablishing Period
(PFEP).
Jumper 1 INTACT/CLIPPED
Display shows state of
PFEP jumper. If jumper is
intact, 7800 SERIES was 10
second PFEP. If jumper is
clipped, 7800 SERIES has 4
second PFEP.
First Safety Time
(for RM/EC7850).
INTACT/CLIPPED
Display shows state of
First Safety Time (EC7850)
jumper. If jumper is intact,
EC7850 has 5 second First
Safety Time. If jumper is
clipped, the EC7850 has 3
second First Safety Time.
Jumper 2
Pilot Valve. INTACT/CLIPPED
Display shows state of Pi-
lotValve (terminal no. 21). If
jumper is intact, RM7800G
has Intermittent Pilot
Valve. If jumper is clipped,
RM7800G has 15 or 30 sec-
ond Interrupted Pilot Valve.
Main Trial Time (for
RM/EC7850).
INTACT/CLIPPED
Display shows state of Main
Trial Time (EC7850)Valve
(terminal no. 21). If jumper
is intact, EC7850 has 5
second Main Trial Time. If
jumper is clipped, EC7850
has 3 second Main Trial
Time.
Jumper 3
Start-up Airflow
Switch (AFS) check.
INTACT (Disabled) /
CLIPPED (Enabled)
Display shows state of Start-
up AFS check jumper. If
jumper is clipped, RM7800
AFS check is enabled and if
jumper is intact, AFS check
is disabled.
Flame amp type
Defines type of ampli-
fier installed.
STANDARD/AMP-
CHECK/SHUTTER
Display shows type of flame
detection system installed
(i.e., as STANDARD, AMP-
CHECK/AMPLI-CHECK™
and SHUTTER/
Dynamic Self-Checking).