Honeywell 7800 SERIES Manual page 3

Humidity: 85% RH continuous, noncondensing.
Vibration: 0.5G environment.
DIMENSIONS: Refer to Figs. 1 and 2.
WEIGHT: RM7890 with Dust Cover: 1 pound 13 ounces,
unpacked.
IMPORTANT: Flame Detection System available for use
with RM7890. To select your Plug-in Flame Signal
Amplifier and applicable Flame Detector, see Table 2
and Figs. 3-5.
Plug-in Flame Signal Amplifiers
Type Color
Rectification Green No
No
No
Dynamic
AMPLI-CHECK™
Dynamic
AMPLI-CHECK™
Dynamic
AMPLI-CHECK™
Dynamic
Self-Check
Infrared Red No
Dynamic
AMPLI-CHECK™
Ultraviolet Purple No
Dynamic
AMPLI-CHECK™
Blue Dynamic
Self-Check
1
A 0.8 sec Flame Failure Response Time Amplifier is required when the Relight option has been selected (JR2 is intact, see Table 3). The RM7890 will
lockout and indicate a Fault 46 if a 3.0 second FFRT is used and jumper JR2 (Lockout) is not clipped and removed.
a
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.
b
Circuitry tests all electronic components in the flame detection system (amplifier and detector) 12 times a minute during burner operation and shuts
down the burner if the detection system fails.
c
Circuitry tests the flame signal amplifier at least 12 times a minute during burner operation and shuts down the burner if the amplifier fails.
d
Order flame rod separately; see holder Instructions.
e
Use only Honeywell Photocell, part no. 38316.
2
Use with RM7890B only.
3
Do not used with RM7890C. See warning at top of page.
TABLE 2—FLAME DETECTION SYSTEMS .
Self-Checking Model
R7847A
R7847A
R7847A
c
R7847B
c
R7847B
c
R7847B
b
R7847C
2
R7848A
c
R7848B
R7849A
c
R7849B
b
R7886A
2
!
WARNING
Do not use non-shelf check ultraviolet flame
detectors (C7027, C7035, C7044, or C7012A,C)
with the RM7890C.
The RM7890C is designed for standing pilot
applications and does not conduct a Safe Start
Check. It cannot detect a failed non-self check
flame detector.
Inability to detect a failed flame detector could
result in a fire or explosion hazard which can cause
property damage, severe injury or death.
Applicable Flame Detectors
Flame
1
Failure
Response
Time Fuel
.8 or 3 sec Gas Rectifying Flame
Rod Holders
.8 or 3 sec Oil Rectifying
Photocell
3 sec Gas, oil, Ultraviolet
coal (PurplePeeper)
.8 or 3 sec Gas Rectifying Flame
Rod Holders
.8 or 3 sec Oil Rectifying
Photocell
3 sec Gas, oil, Ultraviolet
coal (Purple Peeper)
3 sec Gas, oil, Ultraviolet
coal (Purple Peeper)
3 sec Gas, oil, Infrared
coal (Lead Sulfide)
3 sec Gas, oil Infrared
coal (Lead Sulfide)
.8 or 3 sec Gas, oil Ultraviolet
(Minipeeper)
.8 or 3 sec Gas, oil Ultraviolet
(Minipeeper)
3 sec Gas, oil, Ultraviolet
coal (Adjustable
Sensitivity)
3
RM7890A,B,C
SPECIFICATIONS
Type Models
C7004, C7007, C7011.
d
Complete Assemblies:
C7008, C7009, Q179.
C7003, C7010, C7013,
C7014.
a
C7012A,C.
C7004, C7007, C7011.
d
Complete Assemblies:
C7008, C7009, Q179.
C7003, C7010, C7013,
e
C7014.
C7012A,C. a
C7012E,F.
C7015.
C7015.
C7027, C7035,
a
C7044.
C7027, C7035,
a
C7044.
C7076.
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