Honeywell 7800 Series Product Data page 4

7800 SERIES RM7896A,B,C,D RELAY MODULE
Sequence timing for normal operation:
Device INITIATE
RM7896A 10 sec.
RM7896B 10 sec.
RM7896C 10 sec.
RM7896D 10 sec.
* STANDBY and RUN can be an infinite time period.
** PREPURGE will be determined by which ST7800A Purge Card is selected.
1
AFSC is Airflow Switch Check. Factory configured by model only.
2
DMV is Delayed Main Valve.
Approval Bodies:
Underwriters Laboratories Inc. listed: File No. MP268,
Guide No. MCCZ.
Canadian Standards Association certified: LR9S329-3.
Factory Mutual approved.
IRI acceptable.
Federal Communications Commission: Part 15, Class B—
Emissions.
Mounting:
Q7800A for panel mount or Q7800B for wall or burner mount.
Required Components:
Plug-in Flame Signal Amplifier; See Table 2.
Plug-in Purge Timer Cards: Selectable ST7800A:
two seconds to 30 minutes.
Q7800A or Q7800B.
POWER
PILOT
FLAME
MAIN
ALARM
RESET
Fig. 1. Mounting dimensions of RM7896 Relay Module and Q7800A Subbase in in. (mm).
65-0193
STANDBY PREPURGE
* **
* **
* **
* **
BURNER CONTROL
5 (127)
REMOVE ONLY FOR TERMINAL TEST ACCESS.
1
Flame Establishing Period
Pilot Main
4 or 10 sec. No
4 or 10 sec. No
4 or10 sec. 10 sec.
4 or 10 sec. 10 sec.
Accessories:
Optional:
Communication Interface Base Unit, part
no. Q7700A1014.
Communication Interface ControlBus Module, part
no. QS7800A1001.
COMBUSTION SYSTEM MANAGER®, part
no. ZM7850A1001.
ControlBus 5-Wire Electrical Connector, part no. 203541.
Data ControlBus Module™, part no. S7810A1009.
Dust Cover, part no. 221729A.
Expanded Annunciator, part no. S7830A1005.
Flame Simulators:
UV Flame Simulator, part no. 203659.
Rectification Simulator, part no. 123514A.
Keyboard Display Module, part no. S7800A1001.
Remote Display Mounting Bracket, part no. 203765.
Remote Display Power Supply, part no. 203968A Plug-in.
Remote Reset Module, part no. S7820A1007.
Sixty-inch Extension Cable Assembly, part no. 221818A.
Tester, part no. A7800A1002.
5
(127)
4
1
POSTPURGE AFSC
15 sec. No
15 sec. Yes
15 sec. No
15 sec. Yes
1
5-1/4 (133)
M5003A
2
DMV
No
No
Yes
Yes