Honeywell 7800 Series Manual page 4

RM7840E,G,L,M
SPECIFICATION
SEQUENCE TIMING FOR NORMAL OPERATION
Device Initiate Standby Purge
RM7840E 10 sec.
RM7840G 10 sec.
RM7840L 10 sec.
RM7840M 10 sec.
* STANDBY and RUN can be an infinite time period.
** PURGE will be determined by which ST7800A purge card is selected.
1 The MFEP will be determined by which terminal used, configuration jumper selected or jumper wire added, see
Figs. 7, 8, 9, 10, and 21.
APPROVAL BODIES:
Underwriters Laboratories Inc. listed, File No. MP268,
Guide No. MCCZ.
Canadian Standards Association certified, LR9S329-
3.
Factory Mutual approved: Report No. J11V9A0.AF.
IRI acceptable.
Federal Communications Commission: Part 15, Class
MOUNTING: Q7800A for panel mount or Q7800B for B—Emissions.
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
ACCESSORIES:
Optional:
ControlBus 5-Wire Electrical Connector—part no.
203541.
COMBUSTION SYSTEM MANAGER
ZM7850A1001.
Fig. 1—Mounting dimensions of RM7840 Relay Module and Q7800A Subbase, in inches [millimeters].
POWER
PILOT
FLAME
MAIN
ALARM
RESET
Flame Establishing Period
Pilot
* ** 4 or 10 sec. 10 or 15 sec.
* ** 4 or 10 sec. 10, 15 sec. or
Intermittent
* ** 4 or10 sec. 10 or 15 sec.
* ** 4 or 10 sec. 10 sec. or
Intermittent
™
—part no.
BURNER CONTROL
5
[127]
5 [127]
REMOVE ONLY FOR TERMINAL TEST ACCESS.
1
Post
Purge Interlock
Main Run Timing Circuits
* 15 sec. Preignition,
Lockout, modulating
High and
Low Fire
* 15 sec. Preignition,
Running,
Low Fire
* 15 sec. Preignition,
Lockout,
High and
Low Fire
* 15 sec. Preignition,
Running,
Low Fire On-Off-On
Communication Interface Base Unit—part no.
Q7700A1014.
Communication Interface ControlBus Module—
part no. QS7800A1001.
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 Cable Assembly—part no. 221818A.
Tester—part no. A7800A1002.
4
Firing Energy
Rate Saving
Circuit Prepurge
4-wire Yes
No
No
2-wire No
isoltated
contacts
1
1
5 [133]
4
M5003A
Approval
Code
Bodies
FM/IRI
Modulating
UL/CSA
Modulating
FM/IRI
Modulating
UL/CSA
On-Off