CleaverBrooks CB780E User Manual

CB780E/CB784E RELAY MODULES WITH VALVE PROVING
32-00150—03 4 750-234
a
JR2 intact - Direct Spark
b
ED - Pilot System
Environmental Ratings:
Ambient Temperature:
Operating: -40°F to +140°F (-40°C to +60°C).
Storage: -40°F to +150°F (-40°C to +66°C).
Humidity: 85% RH continuous, noncondensing.
Vibration: 0.5G environment.
Dimensions:
Refer to Fig. 2 and 3.
Weight:
CB780E/CB784E: 1 pound 10 ounces, unpacked.
Keyboard Display Module: 4 ounces, unpacked.
IMPORTANT:
Flame Detection System available for use with
CB780E/CB784E. To select your Plug-in Flame
Signal Amplifier and matching Flame Detector, see
Table 5.
a
Circuitry tests the flame signal amplifier 12 times a minute during burner operation and shuts down the burner if the
amplifier fails.
b
The 817-1743 Flame detector should be used only on burners that cycle on-off at least once every twenty-four hours.
Appliances with burners that remain on for twenty-four hours continuously or longer should use the 817-1121 Flame
Detector with 833-2741 Amplifier as the ultraviolet flame detection system.
c
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. Series 4 amplifiers check 60 to 120
times per minute.
SIL 3 Capable:
SIL 3 Capable in a properly designed Safety Instrumented
System. See form 65-0312 for Certificate Agreement.
Table 3. Explanation of Each Combination
AB C D E
4.5A ignition
50 VA Pilot Duty
a
plus
4.5A ignition.
180 VA ignition plus
motor valve with:
660 VA inrush, 360 VA,
open, 260 VA hold.
2A Pilot Duty.
a
64 VA Pilot Duty.
a
plus
motor valves with: 3850 VA
inrush, 700 VA open, 250
VA hold.
Table 4. Valve Proving Combinations.
Pilot
Valve
Main
Valve 1 Ignition
Main
Valve 2
Combinatio
n
Terminal
8
Terminal
9
Terminal
10
Terminal
21
10
a
-- D A D
11 -- D A F
12 -- F A D
13 -- F A F
14
b
CD--D
15 C D -- F
16 C F -- D
17 C F -- F
18 B D -- D
19 B D -- F
20 B F -- D
21 B F -- F
22 DDA D
23 DDA F
24 D F A D
25 D F A F
Table 5. Flame Detection Systems (Fig. 4, 5, 6)
Plug-In Flame Amplifiers Applicable Flame Detectors
Type Color Self-Checking Part Number
Flame Failure
Response
Time Fuel Type Part Number
Infrared Red/Whi
te
No 833-3495 3 sec. Gas, oil, coal Infrared
(Lead Sulfide)
817-4133
Dynamic
AMPLI-CHECK
™
833-3496
a
Ultraviolet Purple No 833-2724 Gas, oil Ultraviolet
817-1743
b
Ultraviolet
Self-Check
Green Dynamic
Self-Check
833-2741
c
Gas, oil, coal Ultraviolet
(Purple Peeper
®
)
817-1121

CleaverBrooks CB780E Specifications

General

Brand	CleaverBrooks
Model	CB780E
Category	Control Unit
Language	English