Product data

7800 SERIES S7800A1142 KEYBOARD DISPLAY MODULE
11 65-0288-1
a
European Approved Controls.
b
Pre-Ignition Interlock Terminal 17 or 20 is model dependent.
c
Valve Proving Device or RM7897.
d
The display values are as follows:
n represents a numbered value.
T represents the terminal number.
x represents the suffix letter of the Relay Module.
Expanded Annunciator Messages (Table 4)
The Expanded Annunciator (EA) may or may not be connected
because it is an optional device. If the EA is not connected, a
display message of “(EA not connected)” is shown. If the EA is
connected, display messages are shown; see Table 4 (Note
that 1 means ON and 0 means OFF). When accessing
Expanded Annunciator messages, follow the same operations
as used with the Selectable messages.
Valv/Start
T21 Interrupted/Intermittent
Pilot Valve, First Stage Oil
Valve or Start Input.
= 1 or 0 Indicates if output is on or off,
energized or de-energized.
Jumper 1
Pilot Flame Establishing
Period (PFEP).
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 Pilot
Valve (terminal no. 21). If
jumper is intact, RM7800G has
Intermittent Pilot Valve. If
jumper is clipped, RM7800G
has 15 or 30 second
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.
Amp Type
Defines type of amplifier
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).
Flame Response
Amplifier Flame Failure
Response Time (FFRT) in
seconds.
0.8 second, 1 second, 2
seconds, or 3 seconds
—
Purge Time
Timing value of purge card. mm:ss Two seconds to 30 minutes.
Table 3. Selectable Messages (Continued).
Selectable
Message/Display
Description
Possible States/ Range
(Terminals)
Comments