Honeywell Car Amplifier R7824 User Manual

R7824, R7847, R7848, R7849, R7851,  
R7852, R7861, R7886 Amplifiers  
for 7800 SERIES and R7140 Relay Modules  
PRODUCT DATA  
indicate the presence of flame when used with 7800 SERIES  
and R7140 Relay Modules. This is not European Community  
(CE) approved for EC7810, EC7820, EC/RM7830 or EC/  
RM7850 Relay Modules.  
The R7848A,B Infrared Flame Amplifiers are solid state plug-  
in amplifiers that respond to an infrared signal from a C7015  
Infrared Flame Detector to indicate the presence of flame  
when used with 7800 SERIES and R7140 Relay Modules.  
The R7849A,B Ultraviolet Flame Amplifiers are solid state  
plug-in amplifiers that respond to an ultraviolet signal from a  
C7027, C7035 or C7044 Ultraviolet Flame Detector to indicate  
the presence of flame when used with 7800 SERIES and  
R7140 Relay Modules.  
The R7851B Optical Flame Amplifiers are solid state plug-in  
amplifiers that respond to optical signals from C7927 and C7962  
Flame Detectors to indicate the presence of flame when used  
with 7800 SERIES and R7140 Relay Modules.  
The R7852A,B Infrared Flame Amplifiers are solid state plug-  
in amplifiers that respond to an infrared signal from a C7915  
Infrared Flame Detector to indicate the presence of flame  
when used with 7800 SERIES and R7140 Relay Modules.  
APPLICATION  
The R7824C Rectification Flame Amplifier is a solid state  
plug-in amplifier that responds to a rectified signal from a  
C7024E,F Self-Check Ultraviolet Flame Detector to indicate  
the presence of flame when used with the 24 Vdc RM7824  
Relay Module.  
The R7851C Dynamic Self-Check Optical Flame Amplifier is a  
solid state plug-in amplifier that responds to ultraviolet signals  
from C7961E Dynamic Shutter-Check ultraviolet flame  
detectors to indicate the presence of flame when used with  
7800 SERIES and R7140 Relay Modules.  
The R7847A,B Rectification Flame Amplifiers are solid state  
plug-in amplifiers that respond to a rectified signal from a  
rectification type flame detector to indicate the presence of  
flame when used with 7800 SERIES and R7140 Relay Modules.  
The R7861A Self-Check Ultraviolet Flame Amplifier is a solid  
state plug-in amplifier that responds to an ultraviolet signal  
from a C7061 Self-Check Ultraviolet Flame Detector to  
indicate the presence of flame when used with 7800 SERIES  
and R7140 Relay Modules.  
The R7847C Self-Check Rectification Flame Amplifier is a  
solid state plug-in amplifier that responds to a rectified signal  
from a C7012E,F Self-Check Ultraviolet Flame Detector to  
Contents  
Ordering Information ........................................................  
2
Amplifiers R7847B,C, R7861A,  
R7886, R7851C or R7852B  
SIL3  
65-0109-14  
Capable  
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R7824, R7847, R7848, R7849, R7851, R7852, R7861, R7886 AMPLIFIERS FOR 7800 SERIES AND R7140 RELAY MODULES  
Infrared:  
R7848A,B for use with C7015 Infrared (lead sulfide)  
Canadian Standards Association Certified: LR95329-3.  
Factory Mutual Approved: Report 1V9A0.AF. (R7851B, Report  
Number 3011020, June 16, 2003), R7851C (Report number  
Detector.  
R7852A,B for use with C7915 Infrared (lead sulfide)  
3020842, April 12, 2005.)  
SwissRe (formerly Industrial Risk Insurers) Acceptable.  
Detector.  
Ultraviolet:  
R7849A,B for use with C7027/C7035/C7044 Minipeeper  
Table 1. Relay Module Flame Failure  
Response Time (FFRT).  
Ultraviolet Detectors.  
R7861A for use with C7061A Ultraviolet Detector.  
R7886A for use with C7076A,D Ultraviolet Detectors with  
adjustable sensitivity.  
Flame Failure Response  
Time (FFRT) in seconds  
Optical:  
Relay Module  
0.8 or 1  
2.0 or 3.0  
2.0  
R7851B for use with C7927 and C7962 Flame Detectors.  
R7851C for use with C7961E Flame Detectors.  
EC7810, EC7820, EC/RM7830, 1.0  
EC/RM7850  
NOTE: R7824C, Series 2 or greater and R7847C Series 4 or  
greater, pulse the shutter when signal of 1.5 Vac is  
sensed. Display readings of 0.7 to 2.4 Vdc are com-  
mon.  
EC/RM7823, EC/RM7885, EC/ 0.8  
RM7890, RM7895, RM7896,  
RM7897, RM7898, RM7888,  
RM7838, RM7800, RM7840,  
R7140  
3.0  
3.0  
Flame Failure Response Time: See Table 1.  
RM7824  
N/A  
Flame Signal (Volts dc):  
Minimum Acceptable: 1.25 Vdc.  
Flame Signal Voltage Range (displayed on Keyboard Display  
Module or measured with a 1M ohm/volt meter plugged into  
amplifier test jacks): 0.0 to 5.0 Vdc.  
+
S
FLAME AMPLIFIER  
Environmental Ratings:  
3
(76)  
Ambient Temperature:  
Operating: -40°F to 140°F (-40°C to 60°C).  
Storage: -40°F to 150°F (-40°C to 65°C).  
Humidity: Operating 85% rh continuous, noncondensing.  
Vibration: Continuous 0.5G environment.  
3/8 (9)  
Weight: 2.5 oz (71g), unpacked.  
Dimensions: See Fig. 1.  
7/8  
3-9/16 (91)  
(23)  
M11460  
SIL 3 Capable:  
Fig. 1. Flame amplifier dimensions in in. (mm).  
The Amplifiers R7847B,C, R7861A, R7886, R7851C or  
R7852B used with the appropriate flame detector and used in  
Relay Module EC7810A, 20A, 30A, 40L, 50A;  
RM7800[E,G,L,M], 30A, 38[A,B,C], 40[E,G,L,M] 50A,  
90[A,B,C,D], 97[A,C], 98A is SIL 3 Capable in a properly  
designed Safety Instrumented System. See form number 65-  
0312 for Certificate Agreement.  
NOTE: EN298 Approved: When these amplifiers are used  
with an EC7810, EC7820, EC/RM7830, or  
EC/RM7850 Relay Module.  
Accessories:  
Flame Simulators:  
Rectification: 123514A.  
Ultraviolet: 203659.  
Flame Detectors (ordered separately): select from Table 2.  
Approvals:  
Underwriters Laboratories Inc. Listed: File no. MP268, Guide  
no. MCCZZ: R7847A, R7847B, R7847C, R7861A, R7886A,  
R7848A, R7848B, R7849A, R7849B, R7851B, R7851C.  
Underwriters Laboratories Inc. Component Recognized: File  
no. MP268, Guide no. MCCZZ: R7824C.  
3
65-0109—14  
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R7824, R7847, R7848, R7849, R7851, R7852, R7861, R7886 AMPLIFIERS FOR 7800 SERIES AND R7140 RELAY MODULES  
Table 2. Flame Detection Systems.  
Plug-in Flame Signal Amplifiers  
Applicable Flame Detectors  
Flame  
Failure  
Response  
a
Type  
Color Self-Checking  
Model  
Time (sec)  
Fuel  
Type  
Models  
C7024E,F  
b,c,h  
Rectification Green Dymanic Self-  
Check  
3
Gas, oil, Ultraviolet (Purple  
coal Peeper®)  
R7824C  
g
No  
0.8/1 or 2/3 Gas  
Rectifying Flame Rod C7004, C7007, C7011  
R7847A  
i
Complete Assemblies:  
C7008, C7009, Q179  
Holders  
g
No  
2/3  
Gas, oil, Ultraviolet (Purple  
C7012A,C.  
R7847A  
R7847B  
coal  
Peeper®)  
d,g  
Dynamic Ampli-  
Check®  
0.8/1 or  
2/3  
Gas  
Rectifying Flame Rod C7004, C7007, C7011  
i
Complete Assemblies:  
C7008, C7009, Q179  
Holders  
d,g  
c,h  
Dynamic Ampli-  
Check®  
2/3  
3
Gas, oil, Ultraviolet (Purple  
coal Peeper®)  
C7012A,C  
C7012E,F  
C7015  
R7847B  
Dynamic Self  
Check  
Gas, oil, Ultraviolet (Purple  
coal Peeper®)  
R7847C  
Infrared  
Red  
No  
R7848A  
2/3  
2/3  
2/3  
2/3  
Gas, oil, Infrared (Lead  
coal Sulfide)  
d
b
Dynamic Ampli-  
Check®  
Gas, oil, Infrared (Lead  
coal Sulfide)  
C7015  
R7848B  
R7852A  
Red/  
White  
No  
Gas, oil, Infrared (Lead  
coal Sulfide)  
C7915  
Dynamic Ampli-  
Check®  
Gas, oil, Infrared (Lead  
coal Sulfide)  
C7915  
R7852B  
R7849A  
f
f
Ultraviolet Purple No  
0.8/1 or  
2/3  
Gas, oil Ultraviolet  
(Minipeeper)  
C7027, C7035, C7044  
d
Dynamic Ampli-  
Check®  
0.8/1 or  
2/3  
Gas, oil Ultraviolet  
(Minipeeper)  
R7849B  
R7861A  
R7886A  
C7027, C7035, C7044  
C7061  
c,e  
c,e  
Dynamic Self-  
Check  
0.8/1 or  
2/3  
Gas, oil, Ultraviolet  
coal  
Blue  
Dynamic Self-  
Check  
2/3  
Gas, oil, Ultraviolet (Adjustable C7076  
coal Sensitivity)  
Optical  
White Dymanic Ampli- R7851B  
Check®  
0.8/1 or 2/3 Gas, oil, Optical (UV, Visible  
coal Light)  
C7927, C7962  
c
Dynamic Self-  
Check  
2/3  
Gas, oil, Optical (UV only)  
coal  
C7961  
R7851C  
a
b
c
Flame Failure Response Time (FFRT) depends on selection of amplifier and 7800 SERIES and R7140 Relay Module.  
R7824C is used only with the 24 Vdc RM7824 Relay Module and C7024E,F Flame Detectors.  
Circuitry tests all electronic components in flame detection system (amplifier and detector) 12 times a minute during burner oper-  
ation and shuts down burner if detection system fails.  
d
e
Circuitry tests flame signal amplifier 12 times a minute during burner operation and shuts down burner if amplifier fails.  
200/220/240 Vac applications require a 120 Vac, 10 VA minimum stepdown transformer (not provided) to drive the shutter. Applies  
to R7886A series 2 or greater; R7861 series 1 or greater. Fig. 2 shows flame detector wiring.  
f
Use C7027, C7035 and C7044 Flame Detectors only on burners that cycle on-off at least once every twenty-four hours. Use  
C7061A Ultraviolet Detector with R7861A Amplifier or C7076A Flame Detector with R7886A Amplifier as ultraviolet flame detec-  
tion system for appliances with burners that remain on continuously for twenty-four hours or longer.  
g
h
R7847A,B Amplifiers with 0.8/1 second FFRT should NOT be used with C7012A,C Solid State Ultraviolet Detectors.  
R7824C Series 2 and greater and R7847C Series 4 or greater, check flame detector system when flame reaches 1.5 Vdc or at  
4.5 seconds, whichever occurs first.  
NOTE: R7824C Series 2 or greater and R7847C Series 4 or greater, pulse the shutter when signal of 1.5 Vdc is sensed. Display  
readings of 0.7 to 2.4 Vdc are common.  
i
Order flame rod separately; see flame detector Instructions for holder.  
65-0109—14  
4
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R7824, R7847, R7848, R7849, R7851, R7852, R7861, R7886 AMPLIFIERS FOR 7800 SERIES AND R7140 RELAY MODULES  
1. Align the amplifier circuit board edge connector with the  
keyed receptacle on the 7800 SERIES and R7140 Relay  
Module. Be sure the amplifier nameplate faces away  
from the Relay Module.  
CAUTION  
Incorrect combination of relay module, amplifier  
and flame detector can cause equipment damage.  
In infrared applications (C7015 Infrared Flame Detector  
Equipment Damage Hazard.  
2. Push in the amplifier until the circuit board is fully  
inserted into the receptacle and then push the amplifier  
toward the 7800 SERIES and R7140 Relay Module  
and R7848 Amplifier) using the RM7890 Relay Module  
retaining clasp.  
with software version 4004 or less requires a ten-  
second delay to start sequence. This applies only to the  
initial power of the RM7890.  
3. Be sure the amplifier is firmly in place.  
4. Perform all required checkout tests.  
Installing Flame Detector  
INSTALLATION  
NOTE: Table 2 lists flame detection systems available for use  
with 7800 SERIES and R7140 Relay Modules. Be  
sure to use the correct combination of amplifier and  
flame detector.  
When Installing this Product...  
1. Read these instructions carefully. Failure to follow them  
could damage the product or cause a hazardous condition.  
2. Check the ratings given in the instructions and on the  
product to make sure the product is suitable for your  
application.  
3. Installer must be a trained, experienced, flame safeguard  
Proper flame detector installation is the basis of a safe and  
reliable flame safeguard installation. Refer to the Instructions  
packed with the flame detector and the equipment  
manufacturer instructions.  
control technician.  
4. After installation is complete, check out the product oper-  
Keep the flame signal leadwires as short as possible from the  
flame detector to the wiring subbase. Capacitance increases  
with leadwire length, reducing the signal strength. The  
maximum permissible leadwire length depends on the type of  
flame detector, leadwire and conduit. However, the ultimate  
limiting factor for the flame detector leadwire is the flame  
signal; see Table 3 in the Checkout section.  
ation as provided in these instructions.  
WARNING  
Electric Shock Hazard.  
Can cause electrical shock, serious injury or death.  
Disconnect the power supply before beginning  
installation. More than one power supply disconnection  
can be involved.  
IMPORTANT  
1. Wiring must comply with all applicable codes, ordi-  
nances and regulations  
2. Wiring (where required) must comply with NEC Class  
1 (Line Voltage) wiring.  
3. Perform all required checkout tests after installation is  
complete.  
CAUTION  
Equipment Damage Hazard.  
Can cause equipment damage.  
Disconnect 7800 SERIES and R7140 Relay Module  
power before removing amplifier.  
Fig. 2. Installing flame signal amplifier.  
Installing Plug-In Flame  
Signal Amplifier (Fig. 2)  
Wiring  
WARNING  
Can cause severe injury, death or property damage.  
Disconnect power supply before beginning installation.  
More than one disconnection can be involved.  
WARNING  
Can cause severe injury, death or property damage.  
Disconnect the power supply before beginning  
installation. More than one power supply disconnection  
can be involved.  
Electrical Shock Hazard.  
Electric Shock Hazard.  
5. Remove the 7800 SERIES and R7140 Relay Module  
from the wiring subbase.  
6. Refer to Fig. 3 for proper flame detector wiring.  
5
65-0109—14  
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R7824, R7847, R7848, R7849, R7851, R7852, R7861, R7886 AMPLIFIERS FOR 7800 SERIES AND R7140 RELAY MODULES  
C7076A,D ULTRAVIOLET DETECTOR  
FLAME ROD  
X F  
REMOTE  
SENSOR  
G
X
6
5
4
3
F
7
8
EARTH  
3b  
3a  
2b  
GROUND  
G
2a  
INFRARED (C7915)  
SHUTTER  
SHUTTER  
L1  
1
C7076A  
OR  
BLUE  
F
C7076D  
TERMINAL  
BLOCK  
L2  
2
WHITE  
G
L1 (HOT)  
L2 (COMMON)  
3
ULTRAVIOLET (C7027/C7035/C7044)  
BLUE  
F
7800 SERIES  
5
1
WHITE  
G
22  
F
G
L2  
OPTICAL C7927A  
BLUE  
F
SOLID STATE SELF-CHECKING  
ULTRAVIOLET (C7012E,F)  
1
WHITE  
G
SOLID STATE  
ULTRAVIOLET (C7012A,C, C7961E)  
4
BLUE  
YELLOW  
WHITE  
F
G
22  
2
3
WHITE  
BLACK  
BLACK  
L2  
L1  
L2  
BLUE  
YELLOW  
F
2
G
BLACK  
BLACK  
GREEN  
L1  
L2  
GND  
SOLID STATE SELF-CHECKING  
ULTRAVIOLET (C7024E,F – E SHOWN)  
5
SELF-CHECKING ULTRAVIOLET (C7061A)  
BLUE  
F
BLUE  
YELLOW  
G
YELLOW  
WHITE  
2
G
F
2
22  
WHITE  
RED  
BLACK  
3
L2  
WHITE  
22  
3
WHITE  
N
L2  
1
!
CAUTION: EQUIPMENT DAMAGE HAZARD. INCORRECT WIRING POLARITY CAN DAMAGE OR DESTROY UV SENSING TUBES.  
CONNECT FLAME DETECTOR WIRES ACCORDING TO FOOTNOTES 1 AND 2 TO PREVENT UV SENSING TUBE DAMAGE.FLAME DETECTOR  
LEADS ARE COLOR CODED. THE BLUE LEAD MUST BE CONNECTED TO THE F TERMINAL AND THE WHITE MUST BE CONNECTED TO  
THE G TERMINAL. THE UV SENSING TUBE IS POLARITY SENSITIVE.  
2
3
FLAME DETECTOR LEADS ARE COLOR CODED. THE BLUE LEAD MUST BE CONNECTED TO THE F TERMINAL AND THE YELLOW MUST  
BE CONNECTED TO THE G TERMINAL. THE UV SENSING TUBE IS POLARITY SENSITIVE.  
!
CAUTION: EQUIPMENT DAMAGE HAZARD. INCORRECT VOLTAGE CAN DAMAGE SHUTTER MECHANISM ONLY ON EC7800 SERIES  
RELAY MODULES. INSTALL A 200/220/240 VAC TO 120 VAC, 10VA MINIMUM, STEPDOWN TRANSFORMER (NOT PROVIDED) TO DRIVE  
THE SHUTTER MECHANISM.  
4
5
DO NOT USE 0.8/1 SECOND FFRT AMPLIFIER WITH C7012A,C FLAME DETECTOR.  
M27852  
GND (GREEN) LEAD WIRE ON C7961E ONLY.  
Fig. 3. Flame detector wiring.  
65-0109—14  
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R7824, R7847, R7848, R7849, R7851, R7852, R7861, R7886 AMPLIFIERS FOR 7800 SERIES AND R7140 RELAY MODULES  
7. Disconnect power supply before making wiring connec-  
tions to prevent electrical shock and equipment damage.  
8. All wiring must comply with appropriate electrical codes,  
ordinances and regulations including NEC Class 1 (Line  
Voltage) wiring where required.  
9. Use recommended wire size and type no. 18 copper  
CAUTION  
Improper wiring can destroy ultraviolet sensing  
Equipment Damage Hazard.  
tube.  
Carefully follow polarity sensitive wiring instructions for  
the C7027, C7035, C7044, C7012, C7024, C7061,  
C7961 and C7076. Reversing the leadwires, even  
momentarily, can destroy the ultraviolet sensing tube.  
conductors TTW(60C) or THW (75C) or THNN(90C).  
10. Use recommended wire routing:  
a. Keep the flame signal leadwire as short as possible  
from the detector to the 7800 SERIES and R7140  
Relay Module. The maximum permissible leadwire  
length depends on the type of leadwire, conduit type  
and leadwire diameter. The ultimate limiting factor for  
flame signal leadwire length is the flame signal volt-  
age.  
POSITIVE (+)  
METER LEAD  
NEGATIVE (-)  
METER LEAD  
ONE  
MEGOHM/VOLT  
METER  
b. Do not run high voltage ignition transformer wires in  
the same conduit with the flame detection wiring.  
c. If the flame detector leadwires are not long enough  
to reach the 7800 SERIES and R7140 Relay Module  
electrical connectors, make splices in a junction box.  
(1) Enclose scanner wiring without armor cable in  
metal cable or conduit.  
FLAME SIMULATOR  
TEST JACK  
(2) Follow flame detector Instructions.  
11. Check wiring, see Fig. 3.  
12. Install 7800 SERIES and R7140 Relay Module.  
13. Restore power to the 7800 SERIES and R7140 Relay  
Module.  
Flame detector wiring is shown in Fig. 3.  
CHECKOUT  
M11459A  
Fig. 4. Flame signal measurement with meter.  
1. Connect blue leadwire from detector to terminal F and  
white leadwire from C7027/C7035/C7044/C7061 to ter-  
minal G.  
2. Connect blue leadwire from detector to terminal F and  
yellow leadwire from C7012/C7024/C7961 to terminal G.  
3. Follow lightoff Instructions for applicable 7800 SERIES  
and R7140 Relay Module.  
Preliminary Inspection  
Make certain that:  
1. Wiring connections are correct and all terminal screws  
and electrical connections are tight.  
2. Proper flame failure response time is selected.  
3. Amplifier is securely mounted on the 7800 SERIES and  
R7140 Relay Module.  
4. Detectors are properly positioned and cleaned according  
to Detector Instructions.  
5. Correct combination of amplifier and flame detector is  
Measuring Flame Signal With  
Keyboard Display Module  
used.  
Consult Instructions for applicable 7800 SERIES and R7140  
Relay Module or Keyboard Display Module.  
Flame Signal Measurement (Fig. 4)  
Flame signal can be measured at the Flame Signal Test Jacks,  
see Fig. 4, and at the Keyboard Display Module. Measure the  
flame signal at the appropriate times defined in the Checkout  
section; see applicable 7800 SERIES and R7140 Relay  
Module Instructions. See Table 3 for acceptable and maximum  
flame signal voltage strengths.  
Measuring Flame Signal with a Volt  
Ohmmeter  
Two test jacks, positive and negative (Com) are accessible on  
the top of the amplifier when plugged into the 7800 SERIES  
and R7140 Relay Module. These jacks are provided for  
monitoring flame signal strength. Use a one megohm/volt  
meter to measure the flame signal strength. Connect the  
positive meter lead (red) to the positive (+) amplifier test jack  
and the negative meter lead (black) to the negative (-) amplifier  
test jack. The test jacks use standard 0.180 inch diameter  
voltmeter probes. A minimum 1.25 Vdc flame signal is  
required.  
NOTE: The probes need to tip toward the relay module in  
order to make electrical contact.  
7
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R7824, R7847, R7848, R7849, R7851, R7852, R7861, R7886 AMPLIFIERS FOR 7800 SERIES AND R7140 RELAY MODULES  
Table 3. Flame signal.  
Minimum Acceptable  
a
Flame Detector  
Flame Rod  
Flame Signal Amplifier  
Steady dc Voltage  
1.25 Vdc  
Maximum Expected dc Voltage  
b
5.0 Vdc at Keyboard Display Module  
or on volt-ohmmeter.  
R7847A,B  
c
C7012A,C  
C7015A  
b
R7848A,B  
d,e  
C7024E,F  
R7824C  
b
C7027A  
C7035A  
C7044A  
R7849A,B  
b
C7927  
C7962  
R7851B  
b
C7915  
R7852A,B  
d
C7061A  
C7076A,D  
C7961E  
R7861A  
d
R7886A  
d
R7851C  
a
This minimum or stronger signal can be easily obtained if the detector is correctly installed and positioned to properly sense the  
flame. Obtain this voltage before completing checkout.  
b
c
The flame amplifiers are Ampli-Check® type.  
Adjust slightly, or face the pipe down, or extend the sight pipe on C7012A,C applications to obtain a maximum flame signal  
reading less than 5.0 volts.  
d
e
The flame signal amplifier circuitry is tested one-half second every five seconds during burner operation and shuts down the  
burner if the amplifier fails (all installations).  
R7824C Series 2 or greater and R7847C Series 4 or greater, pulse the shutter when the flame signal reaches 1.5 Vdc.  
NOTE: R7824C, Series 2 or greater, pulse shutter when sig-  
nal of 1.5 Vdc is sensed. Display readings of 0.7 to  
2.4 Vdc are common.  
c. Temperature at the flame rod insulator is no greater  
than 500°F (260°C).  
4. For all optical detectors, clean the detector viewing  
window, lens, and inside of the sight pipe as applicable.  
5. With the burner running, check the temperature at the  
detector. If it exceeds the detector maximum rated  
temperature:  
The flame signal for the pilot alone, the main burner flame  
alone, and both together must be steady and a minimum of  
1.25V. If the flame signal is unsteady, or less than the  
minimum acceptable voltage, check the flame detector  
installation and circuitry in the following procedure.  
a. Add a heat block to stop conducted heat traveling  
up the sight pipe.  
b. Add a shield or screen to reflect radiated heat.  
c. Add cooling (refer to sight pipe ventilation in the  
detector Instructions).  
1. Check the supply voltages at terminals (L1) and L2 (N).  
Make sure the master switch is closed, connections are  
correct, and the power supply is of the correct voltage  
and frequency and is sinusoidal.  
2. Check the detector wiring for defects including:  
a. Incorrect connections.  
6. Make sure that the flame adjustment is not too lean.  
7. Make sure the optical detector is properly sighting the  
flame.  
8. If necessary, resight or reposition the detector.  
9. If you cannot obtain proper operation, replace the  
plug-in amplifier.  
b. Wrong type of wire.  
c. Deteriorated wire.  
d. Open circuits.  
e. Short circuits.  
f. Leakage paths caused by moisture, soot or accu-  
mulated dirt.  
10. If you cannot yet obtain proper operation, replace the  
flame detector.  
IMPORTANT  
3. For a flame rod, make sure:  
If you make any changes to the flame detection  
system, repeat all required Checkout tests in  
Checkout section of the Instructions for the  
applicable 7800 SERIES and R7140 Relay Module.  
a. There is enough ground area.  
b. The flame rod is properly located in the flame.  
Automation and Control Solutions  
Honeywell International Inc.  
1985 Douglas Drive North  
® U.S. Registered Trademark  
© 2011 Honeywell International Inc.  
65-0109—14 M.S. Rev. 06-11  
Printed in U.S.A.  
Golden Valley, MN 55422  
customer.honeywell.com  
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