Honeywell 7800 SERIES Manual page 4

RM7890A,B,C
SPECIFICATIONS
SEQUENCE TIMING FOR NORMAL OPERATION:
Device
RM7890A
RM7890B
RM7890C
*STANDBY and RUN can be an infinite time period.
1 RM7890A1031 has a fixed PFEP timing of 30 seconds.
APPROVAL BODIES:
Underwriters Laboratories Inc. listed, File No. MP268,
Guide No. MCCZ.
Canadian Standards Association certified, LR9S329-3.
Factory Mutual approved: 0X4AS.AF.
IRI acceptable.
Federal Communications Commission: Part 15, Class B-
Emissions.
RM7890C only: Underwriters Laboratories Inc. Compo-
nent Recognized.
MOUNTING: Q7800A for panel mount or Q7800B for wall
or burner mount.
REQUIRED COMPONENTS:
Plug-in Flame Signal Amplifier, see Table 2.
Q7800A or Q7800B.
ACCESSORIES:
Optional:
COMBUSTION SYSTEM MANAGER™—part no.
ZM7850A1001.
Communication Interface Base Unit—part no.
Q7700A1014.
Fig. 1—Mounting dimensions of RM7890 Relay Module and Q7800A. Subbase in in. [mm].
POWER
PILOT
FLAME
MAIN
ALARM
RESET
65-0126—2
Initiate Standby
10 sec *
10 sec *
10 sec *
BURNER CONTROL
5 [127]
1 REMOVE ONLY FOR TERMINAL TEST ACCESS.
PilotFlame Establishing Period
4 or 10 sec
4 or 10 sec
Not applicable
Communication Interface ControlBus Module—part no.
QS7800A1001.
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:
— part no. 203659 UV Flame Simulator.
— part no. 123514A Rectification Simulator.
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
Run
*
1
*
*
1
1
5 [133]
4
M5148