RM7895A RELAY MODULE
3
32-00122-01
IMPORTANT:
Flame Detection System available for use with
RM7895. To select your Plug-In Flame Signal
Amplifier and applicable Flame Detector, see Table
2 and Fig. 3 and 4.
Table 2. Flame Detection Systems (Fig. 3 and 4).
a
Order flame rod separately; see holder instructions.
b
The C7012A,C, C7027, C7035 and C7044 Flame Detectors should be used only on burners that cycle on-off at least
once every twenty-four hours. Appliances with burners that remain on continuously for twenty-four hours or longer
should use the C7012E,F Flame Detector with the R7847C Amplifier or the C7076A,D Flame Detector with the R7886A
Amplifier as the ultraviolet flame detection system.
Table 3. Sequence Timing for Normal Operation.
* STANDBY and RUN can be an infinite time period.
** PURGE will be determined by which ST7800A Purge Card is selected.
Approvals:
Underwriters Laboratories Inc. listed, File No. MP268,
guide No. MCCZ.
Factory Mutual approved, Report No. J.I.1V9A0.AF.
IRI acceptable.
Federal Communications Commission, Part 15,
Class B—Emissions.
SIL 3 Capable:
SIL 3 Capable in a properly designed Safety Instrumented
System. See form number 65-0312 for Certificate
Agreement.
Mounting:
Q7800A for panel mount.
Required Components:
Plug-in Flame Signal Amplifier, see Table 2.
Plug-in Purge Timer Cards: selectable ST7800A: two sec-
onds to 30 minutes.
Q7800A Wiring Subbase.
Accessories:
203541 5-wire connector, required when Keyboard Dis-
play Module is used for remote reset; remote annuncia-
tion or report generation.
Optional:
Q7700A1014 Communication Interface Base Unit.
QS7800A1001 Communication Interface ControlBus
Module.
ZM7850A1001 Combustion System Manager™*.
203541 ControlBus 5-wire Electrical Connector.
S7810A1009 Data ControlBus™* Module.
221729A Dust Cover.
S7830A1015 Expanded Annunciator.
S7810M1003 ModBus Card.
Flame Simulators:
—203659 UV Flame Simulator.
—123514A Rectification Simulator.
S7800A1019 Keyboard Display Module.
203765 Remote Display Mounting Bracket.
203968A Remote Display Power Supply Plug-In.
S7820A1007 Remote Reset Module.
221818A Sixty-inch (1.52 meters) Extension Cable
Assembly.
221818C 120 inch (3.05 meters) Extension Cable
Assembly.
A7800A1002 Tester.
Plug-In Flame Signal Amplifiers
Applicable Flame Detectors
Type
Color
Self-
Checking
Model
Flame
Failure
Response
Time
Fuel
Type
Models
Rectificatio
n
Green
No
R7847A1041 3 sec.
Gas
Rectifying Flame
Rod Holders
a
C7004, C7007, C7011.
Complete Assemblies:
C7008, C7009, Q179.
Gas, oil,
coal
Ultraviolet (Purple
Peeper)
C7012A,C
b
.
Ultraviolet
Purple
R7849A1031
Gas, oil
Ultraviolet
(Minipeeper)
C7027, C7035, C7044
b
.
Device
Initiate
Standby
Purge
Flame Establishing Period
Pilot
Main
RM7895A
10 seconds
*
**
4 or 10 seconds
No
