R4140G, L AND M FLAME SAFEGUARD PROGRAMMING CONTROLS
60-0770—2
3
Plug-In Flame Signal Amplifiers
Applicable Flame Detectors
Type
Color
Self-
Checking
Model
Flame Failure
Response Time
Fuel
Type
Models
Rectification Green
No
R7247A
2 to 4 second
Gas
Rectifying
Flame Rods
Holders
a
C7004. C7007,
C7011. Complete
Assemblies: C7005,
C7008, C7009, Q179.
R7247A,
R7247B
b
Oil
Rectifying
Photocells
c
C7003, C7010, C7013,
C7014.
Gas, Oil,
Coal
Ultraviolet
(Purple Peeper
C7012A or C.
Dynamic
Self-Check
R7247B
b
Gas
Rectifying
Flame Rods
Holders
a
: C7004, C7007,
C7011. Complete
Assemblies: C7005,
C7008, C7009, Q179.
R7247C
d
Gas, Oil,
Coal
Ultraviolet
(Purple Peeper
C7012E or F.
Infrared
Red
No
R7248A
2 to 4 second
Gas, Oil, Infrared (Lead
C7015.
Dynamic
Ampli-
Check®
R7248B
b
Coal
Sulfide)
Ultraviolet
Purple
No
R7249A
2 to 4 second
Gas, Oil
Ultraviolet
(Minipeeper)
C7027, C7035, C7044.
Blue
Dynamic
Self-Check
R7476A
d
Gas, Oil,
Coal
Ultraviolet
(Adjustable
Sensitivity)
C7076.
25,000V rms in a salt bath for one minute without
breakdown. It is rated at 200
°
F (93
°
C) for continuous
duty, and up to 350
°
F (177
°
C) for intermittent use.
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Refer to the appropriate wiring diagram in the
Specifications for the R4140G,L or M. Follow the burner
manufacturer’s wiring diagram, if provided.
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Make sure the loads do not exceed the terminal ratings.
Refer to the label on the R4140 or to the Terminal
Ratings in the Specifications section of the
Specifications for the R41406,L or M.
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Check the power supply circuit. The voltage and
frequency must match those of the R4140. Do not
connect the R4140 to a circuit that is subjected to line
voltage variations, such as would occur with on-off
switching of heavy loads. A separate power supply
circuit can be required for the flame safeguard control.
Add required disconnect means and overload
protection.
���
Check all wiring circuits and complete the Static
Checkout in Table 2 before installing the R4140.
Installing the Flame Detector
NOTE:
Table 1 lists the flame detection systems available
for use with R4140 Programmers. Make sure you
are using the correct combination of amplifier and
flame detector(s).
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 burner manufacturer’s
instructions. Follow the instructions carefully for the best
possible flame detector application.
Keep the flame signal lead wires as short as possible from
the flame detector to the wiring subbase. Capacitance
increases with Ieadwire length, reducing the signal strength.
The maximum permissible leadwire length depends on the
type of flame detector, leadwire, and conduit. The ultimate
limiting factor in flame signal leadwire length is the signal
current. Refer to Table 4 in the Checkout section.
Table 1. Flame Detection Systems.
a
Order flame rod separately; see Instructions for the holder.
b
Circuitry tests the flame signal amplifier at least 150 times a minute during burner operation and shuts down the burner if the
amplifier fails.
c
Use only Honeywell part no. 38316 Photocell.
d
Circuitry tests all electronic components in the flame detection system (amplifier and detector) 60 to 240 times a minute during
burner operation and shuts down the burner if the detection system fails.