Honeywell 7800 Series Installation Manual page 13

Terminal No.
G
Earth G
L2(N)
3
4
5
6
7
8
9
10
F(11)
12-21
22
a
See Table 2.
b
2000 VA maximum connected load to RM7885A Assembly.
c
See Tables 5 and 6 for device load combination for terminals 8 and 9.
Combination
1
2
3
4
5
6
7
A
%0 VA Pilot Duty 180 VA ignition plus Motor Valves
plus 4.5A ignition. with:
660 VA inrush,
360 VA open,
250 VA hold.
Mounting RM7885A Relay Module
1. Mount the RM7885A vertically on the Q7800
Subbase, or mount horizontally with the knife blade
terminals pointing down. When mounted on the
Q7800A, the RM7885A must be in an electrical
enclosure.
2. When mounting in an electrical enclosure, provide
adequate clearance for servicing, installation and
removal of the RM7885A, KDM, flame amplifier,
flame amplifier signal voltage probes, electrical
signal voltage probes, and electrical connections.
Table 4. Terminal Ratings.
Description
Flame Sensor Ground
a
Earth Ground
Line Voltage Common
Line Voltage Supply (L1)
Alarm
Unused.
Stop Station
Unused
Pilot Valve
Main Fuel Valve
Start Input
Flame Sensor
Unused
Shutter
Table 5. Combination for Terminals 8 and 9.
Pilot Fuel 8
B
A
D
D
C
C
C
Table 6. Composition of Each Combination.
B
2A Pilot Duty. 65 VA Pilot Duty plus Motor Valves with:
IMPORTANT
13
RM7885A 7800 SERIES RELAY MODULES
—
—
—
120 Vac (+10/-15%), 50/60 Hz,
b
±10%).
120 Vac, 1A pilot duty.
—
120 Vac,8A run, 43A inrush.
—
120 Vac.
120 Vac.
120 Vac.
60 to 220 Vac, current limited.
—
120 VAc, 0.5A.
D
D
No Load
D
D
C
No Load
C
3850 VA inrush,
700 VA open,
250 VA hold.
a. Allow an additional two inches (51 mm) below
the RM7885A for the flame amplifier mounting.
b. Allow an optional three-inch (76 mm) minimum
to both sides of the RM7885A for electrical sig-
nal voltage probes.
3. Make sure no subbase wiring is projecting beyond
the terminal blocks. Tuck in wiring against the back
of the subbase so it does not interfere with the knife
blade terminals or bifurcated contacts.
The RM7885A must be installed with a plug-in
motion rather than a hinge action.
Ratings
c
c
Main 9
D
32-00215—01