Honeywell 7800 Series Product Data page 2

7800 SERIES RM7896A,B,C,D RELAY MODULE
SPECIFICATIONS
Electrical Ratings, see Table 1:
Voltage and Frequency: 120 Vac (+10/-15%), 50 or 60 Hz
1
(+/- 10%).
Power Dissipation: RM7896: 10W maximum.
Terminal No. Description
G Flame Sensor Ground
Earth G Earth Ground
L2(N) Line Voltage Common
3 Alarm
4 Burner Motor
5 Line Voltage Supply (L1)
6 Burner Controller and Limits
7 Airflow Interlock
8 Pilot Valve/Ignition
9 Main Fuel Valve
10 Ignition
F(11) Flame Sensor
12 Unused
13 Unused
14 Unused
15 Unused
16 Unused
17 Unused
18 Unused
19 Unused
20 Unused
21 Delayed Main Valve (RM7896C,D)
22 Shutter
1
Operating frequency chosen by RM7896 selection.
2
The RM7896 must have an earth ground providing a connection between the subbase and the control panel or the
equipment. The earth ground wire must be capable of conducting the current to blow the 20A fuse (or breaker) in event
of an internal short circuit. The RM7896 needs a low impedance ground connection to the equipment frame which, in
turn, needs a low impedance connection to earth ground. For a ground path to be low impedance at RF frequencies, the
connection must be made with minimum length conductors that have maximum surface areas. Wide straps or brackets
rather than leadwires are preferred. Be careful to verify that mechanically tightened joints along the ground path, such
as pipe or conduit threads or surfaces held together with fasteners, are free of nonconductive coatings and are
protected against mating surface corrosion.
3
2000 VA maximum connected load to RM7896 Assembly.
4
Can also be 120 Vac, 1A pilot duty.
5
Can also be 65 VA pilot duty with motorized valve, 1150 VA inrush, 460 VA open, 250 VA hold.
ORDERING INFORMATION
When purchasing replacement and modernization products from your 7800 SERIES distributor, refer to the TRADELINE®
Catalog for complete ordering number.
If you have additional questions, need further information, or would like to comment on our products or services, please write or phone:
1. Your local Home and Building Control Sales Office (check white pages of your phone directory).
2. Home and Building Control Customer Logistics
Honeywell Inc., 1885 Douglas Drive North
Minneapolis, Minnesota 55422-4386 (612) 951-1000
In Canada—Honeywell Limited/Honeywell Limitée, 740 Ellesmere Road, Scarborough, Ontario M1P 2V9 International Sales
and Service Offices in all principal cities of the world. Manufacturing in Australia, Canada, Finland, France, Germany, Japan,
Mexico, Netherlands, Spain, Taiwan, United Kingdom, U.S.A.
65-0193
Table 1. Terminal Ratings.
2
2
Maximum Total Connected Load: 2000 VA.
Fusing Total Connected Load: 20A maximum, type FRN or
equivalent.
Ratings
120 Vac, 1A pilot duty.
120 Vac, 9.8 AFL, 58.8 ALR (inrush).
120 Vac (+10/-15%), 50 or 60 Hz (+/- 10%).
120 Vac, 1 mA.
120 Vac, 9A.
120 Vac, 4.5A ignition and 50VA pilot duty.
5
120 Vac, 2A pilot duty.
4
120 Vac, 4.5A ignition.
60 to 220 Vac, current limited.
20 Vac, 2A pilot duty.
120 Vac, 0.5A.
3,4
4