Honeywell 7800 Series Installation Instructions Manual page 3

50023821-001 2-Line Keyboard Display Module Cover,
NEMA 4, clear
50023821-002 2-Line Keyboard Display Module Cover,
NEMA 4, clear with reset button
205321B Flush Display Mounting Kit. Display Module Cover
for 4-line LCD: 204729A w/o reset button, 204729C with
reset button
221818A Extension Cable, display, 5 ft (1.52 m)
221818C Extension Cable, display, 10 ft (3.05 m)
123514A Rectification Flame Simulator
203569 Ultraviolet Flame Simulator
IMPORTANT
A flame detection system is required for operation and must
be ordered separately. Select the applicable flame signal
amplifier and matching flame detector from Table 5.
Terminal No.
G
Earth G
L2(N)
3 (RM7890)
3 (RM7895)
4 (RM7890)
4 (RM7895)
5 (RM7890)
5 (RM7895)
6 (RM7890)
6 (RM7895)
7 (RM7890)
7 (RM7895)
8
9
10
F(11)
12 to 22
a
The RM7890 and RM7895 must have an earth ground providing a connection between the wiring subbase and the control panel or
equipment. The earth ground wire must be capable of conducting the current to blow a 15A Fast Blow, Type SC, fuse (or equivalent) in the
event of an internal short circuit. The RM7890 and RM7895 need a low impedance ground connection to the equipment frame, which, in turn,
needs a low impedance connection to earth ground.
b
2000 VA maximum connected load to the Relay Module.
c
See Table 3 and 4.
Table 2. RM7890, RM7895 Terminal Ratings.
Description
a
Flame Sensor Ground
a
Earth Ground
Line Voltage Common
Line Voltage Supply (L1)
Alarm
Alarm
Burner Motor
Unused
Line Voltage Supply (L1)
Burner Controller and Limits
Burner Controller and Limits
Unused
Airflow Interlock
Pilot Valve/Ignition
Main Fuel Valve
Ignition
Flame Sensor
Unused
—
—
—
100 Vac (+10%/-15%), 50/60 Hz
(±10%).
100 Vac, 1A pilot duty.
100 Vac, 1A pilot duty.
100 Vac, 9.8AFL, 58.8ALR (inrush).
—
100 Vac (+10%/-15%), 50/60 Hz
(±10%).
100 Vac 8A Run, 43A inrush.
100 Vac, 1 mA.
—
100 Vac, 8A run, 43A inrush.
100 Vac.
60–220 Vac, current limited.
—
3
RM7890, RM7895 100 Vac
Ratings
b
b
b
c
32-00216-01