Honeywell R7824 Product Data page 4

R7824, R7847, R7848, R7849, R7851, R7852, R7861, R7886 AMPLIFIERS FOR 7800 SERIES AND R7140 RELAY MODULES
Plug-in Flame Signal Amplifiers
Type Color Self-Checking
Rectification Green Dymanic Self-
Check
No
No
Dynamic Ampli-
Check®
Dynamic Ampli-
Check®
Dynamic Self
Check
Infrared Red No
Dynamic Ampli-
Check®
Red/ No
White
Dynamic Ampli-
Check®
Ultraviolet Purple No
Dynamic Ampli-
Check®
Dynamic Self-
Check
Blue Dynamic Self-
Check
Optical White Dymanic Ampli-
Check®
Dynamic Self-
Check
a
Flame Failure Response Time (FFRT) depends on selection of amplifier and 7800 SERIES and R7140 Relay Module.
b
R7824C is used only with the 24 Vdc RM7824 Relay Module and C7024E,F Flame Detectors.
c
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
Circuitry tests flame signal amplifier 12 times a minute during burner operation and shuts down burner if amplifier fails.
e
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
R7847A,B Amplifiers with 0.8/1 second FFRT should NOT be used with C7012A,C Solid State Ultraviolet Detectors.
h
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
Table 2. Flame Detection Systems.
Flame
Failure
Response
a
Model Time (sec)
3 Gas, oil,
b,c,h
R7824C
coal
g 0.8/1 or 2/3 Gas
R7847A
2/3 Gas, oil,
g
R7847A
coal
d,g 0.8/1 or Gas
R7847B
2/3
2/3 Gas, oil,
d,g
R7847B
coal
3 Gas, oil,
c,h
R7847C
coal
R7848A 2/3 Gas, oil,
coal
2/3 Gas, oil,
d
R7848B
coal
R7852A 2/3 Gas, oil,
coal
2/3 Gas, oil,
b
R7852B
coal
R7849A 0.8/1 or Gas, oil
2/3
0.8/1 or Gas, oil
d
R7849B
2/3
0.8/1 or Gas, oil,
c,e
R7861A
2/3 coal
2/3 Gas, oil,
c,e
R7886A
coal
R7851B 0.8/1 or 2/3 Gas, oil,
coal
2/3 Gas, oil,
c
R7851C
coal
4
Applicable Flame Detectors
Fuel Type
Ultraviolet (Purple
Peeper®)
Rectifying Flame Rod
i
Holders
Ultraviolet (Purple
Peeper®)
Rectifying Flame Rod
i
Holders
Ultraviolet (Purple
Peeper®)
Ultraviolet (Purple
Peeper®)
Infrared (Lead
Sulfide)
Infrared (Lead
Sulfide)
Infrared (Lead
Sulfide)
Infrared (Lead
Sulfide)
Ultraviolet
(Minipeeper)
Ultraviolet
(Minipeeper)
Ultraviolet
Ultraviolet (Adjustable
Sensitivity)
Optical (UV, Visible
Light)
Optical (UV only)
Models
C7024E,F
C7004, C7007, C7011
Complete Assemblies:
C7008, C7009, Q179
C7012A,C.
C7004, C7007, C7011
Complete Assemblies:
C7008, C7009, Q179
C7012A,C
C7012E,F
C7015
C7015
C7915
C7915
f
C7027, C7035, C7044
f
C7027, C7035, C7044
C7061
C7076
C7927, C7962
C7961