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7800 SERIES EC7895A, RM7895A RELAY MODULE
65-0205
4
Environmental Ratings:
Ambient Temperature:
Operating: -40° F to 140° F.
Storage: -60° F to 150° F.
Humidity: 85% RH continuous, noncondensing.
Vibration: 0.5G environment.
Dimensions:
Refer to Fig. 1 and 2.
Weight:
RM7895 with Dust Cover: 1 pound 15 ounces, unpacked.
IMPORTANT
Flame Detection System available for use with
EC7895 and RM7895. To select your Plug-in Flame
Signal Amplifier and applicable Flame Detector, see
Table 2 and Fig. 3 through 5.
Table 2. Flame detection systems (Figs. 3, 4, 5).
a
Order flame rod separately; see holder Instructions.
b
Use
only
Honeywell Photocell, part no. 38316.
c
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 or the C7061
Flame detector with the R7861 Amplifier as the ultraviolet flame detection system.
d
Circuitry tests the flame signal amplifier at least 12 times a minute during burner operation and shuts down the burner if the
amplifier fails.
e
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.
f
When R7861 is used with EC7895, the application requires a step down transformer. See Fig. 14.
g
Use with RM7895A only.
Plug-in Flame Signal Amplifiers Applicable Flame Detectors
Type Color
Self-
Checking Model
Flame
Failure
Response
Time Fuel Type Models
Rectification Green No R7847A .8 or 3 sec Gas Rectifying Flame
Rod Holders
a
C7004, C7007, C7011
Complete Assemblies:
C7008, C7009, Q179.
No R7847A .8 or 3 sec Oil Rectifying
Photocell
C7003, C7010, C7013,
C7014
b
No R7847A 3 sec Gas,
Oil, Coal
Ultraviolet
(Purple Peeper)
C7012A,C.
c
Dynamic
AMPLI-
CHECK®
R7847B
d
.8 or 3 sec Gas Rectifying Flame
Rod Holders
a
C7004, C7007, C7011
Complete Assemblies:
C7008, C7009, Q179.
Dynamic
AMPLI-
CHECK®
R7847B
d
.8 or 3 sec Oil Rectifying
Photocell
C7003, C7010, C7013,
C7014
b
Dynamic
AMPLI-
CHECK®
R7847B
d
3 sec Gas,
Oil, Coal
Ultraviolet
(Purple Peeper)
C7012A,C.
c
Dynamic
Self-Check
R7847C
e
3 sec Gas,
Oil, Coal
Ultraviolet
(Purple Peeper)
C7012E,F.
Infrared Red No R7848A 3 sec Gas,
Oil, Coal
Infrared
(Lead Sulfide)
C7015
Dynamic
AMPLI-
CHECK®
R7848B
d
3 sec Gas,
Oil, Coal
Infrared
(Lead Sulfide)
C7015
Ultraviolet Purple No R7849A .8 or 3 sec Gas, Oil Ultraviolet
(MiniPeeper)
C7027, C7035,
C7044.
c
Dynamic
AMPLI-
CHECK®
R7849B
d
.8 or 3 sec Gas, Oil Ultraviolet
(MiniPeeper)
C7027, C7035,
C7044.
c
Dynamic
Self-Check
f
R7861A 3 sec Gas,
Oil, Coal
Ultraviolet C7061
Blue Dynamic
Self-Check
g
R7886A
e
3 sec Gas,
Oil, Coal
Ultraviolet
(Adjustable
Sensitivity)
C7076