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CB780E/CB784E RELAY MODULES WITH VALVE PROVING

32-00150—03

750-234

Fig. 3. Mounting dimensions of Keyboard

Display Module, in inches (mm).

Fig. 4. Ultraviolet Self-Check detector, mounting

dimensions in inches (mm).

Fig. 5. Ultraviolet detector, mounting

dimensions in inches (mm).

Fig. 6. Infrared detector, mounting dimensions

in inches (mm).

PRINCIPAL TECHNICAL
FEATURES

The CB780E/CB784E provides all customary flame
safeguard functions while providing significant
advancements in the areas of safety, annunciation and
system diagnostics.

Safety Shutdown (Lockout) Occurs
If Any of the Following Occur
During the Indicated Period:

Anytime:
a. Purge card is not installed or removed.
b. Purge card is bad.
c. Configuration jumpers were changed (after 200

hours of main valve operation).

d. Internal system fault.
e. Demand present at terminals 6 and 17 at the

same time.

Failure of the Valve Proving test

g. Demand on terminal 17 and device at default

“Never”.

INITIATE Period
a. AC line power errors occurred. See Operation

section.

b. Four minute INITIATE period has been exceeded.

STANDBY Period
a. Flame signal is present after 240 seconds.
b. Pre-Ignition Interlock is open an accumulative

time of 30 seconds.

c. Interlock check feature is enabled (only with JR3

clipped) and the Interlock String (including the
airflow switch) is closed for 120 seconds with
controller closed.

d. Ignition/pilot valve terminal is energized.
e. Main valve terminal is energized.
f.

Internal system fault occurred.

PREPURGE Period
a. Pre-Ignition Interlock opens anytime during

PREPURGE period (except during Valve Proving
test).

b. Flame signal is detected after first ten seconds

during PREPURGE.

M28591B

2 -1 /3 2
(5 2 )

BURNER CONTROL

29/32
(23)

19/32
(15)

1-1/4
(32)

1-1/32
(26)

5/32
(4)

5/16
(8)

1/2
(13)

7/16 (11)

1-5/16
(49)

2-7/16 (62)

29/32
(23)

5/32 (4)

15/32
(12)

3-7/8 (99)

5/16
(8)

13/
32
(11)

BACK

ENTER

Edit:

4-27/32 (123)

4-3/32 (104)

2-3/4
(69)

MOUNTING FLANGE

1/2- 14 NPSM

LEADWIRES

FACEPLATE

3/4Ð14 NPT

M20935A

3-3/4

(95)

7-7/32

(183)

5-1/8 (130)

3-7/16

(87)

5-1/4 (133)

817-1121

COLLAR WITH 1/2-14 NPSM
INTERNAL THREADS

4 (102)

6 FOOT (1.83 METER)
LEADWIRES (2)

M20937A

3-1/2 (89)

1-1/16

(27)

817-1743

APERTURE

BUSHING WITH
MAGNIFYING LENS

COLLAR, 3/4-14 NPSM
INTERNAL THREADS

3/4-14
NPSM

3/4-14 NPSM
INTERNAL
THREADS

HEAT BLOCK

CELL MOUNT

M23944A

2 LEADS IN A
48 INCH (1.2 METER)
FLEXIBLE CONDUIT

2-3/4

(70)

1-1/4

(32)

1-5/8 (41)

1-1/16 (27)

1-1/4

(32)

817-1742

817-4133 IS 2-1/4 (58).

Содержание 833-03517

Страница 1: ...leshooting The CB780E CB784E offer the Valve Proving test feature Using the 833 2727 Keyboard Display standard on the CB780E the following features can be set up Post Purge time Up to 60 minutes Devic...

Страница 2: ...etaining history files and sequencing status after loss of power Remote reset optional Report generation optional Five sequence information LEDs Burner controller data Sequence status Sequence time Ho...

Страница 3: ...Line Voltage Supply L1 b 5 Burner Motor 9 8AFL 58 ALR inrush 6 Burner Controller and Limits Demand Not Valve Proving 1 mA 7 Lockout Running Interlock 8A run 43A inrush 8A run 43A inrush 8 Pilot Valve...

Страница 4: ...or 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 desi...

Страница 5: ...and CB784E are identical except for the Keyboard Display Module which is standard with the CB780E and optional with the CB784E A 4 line LCD display option S78000A1092 U is available to be purchased se...

Страница 6: ...present after 240 seconds b Pre Ignition Interlock is open an accumulative time of 30 seconds c Interlock check feature is enabled only with JR3 clipped and the Interlock String including the airflow...

Страница 7: ...o line voltage inputs to verify proper operation in the presence of normal electrical line noise such as transient high voltage spikes or short periods of line dropout Signal conditioning is tolerant...

Страница 8: ...ark Termination The ignition terminal is monitored to verify early spark termination five seconds ignition and pilot and five seconds pilot only First Out Annunciation and Self Diagnostics Sequence St...

Страница 9: ...ts and interlocks must be rated to simultane ously carry and break current to the ignition trans former pilot valve and main fuel valve s 6 All external timers must be listed or component rec ognized...

Страница 10: ...o blow out resulting in dead unpowered system WARNING b Keyboard Display Module For communications purposes use an unshielded 22 AWG 2 wire twisted cable and one wire for ground if the lead wire run a...

Страница 11: ...hat modules on the closest and farthest end of the daisy chain con figuration string require a 120 ohm 1 4 watt M28586A CONFIGURATION JUMPERS MICROCOMPUTER RESET PUSHBUTTON RUN TEST SWITCH STATUS LEDs...

Страница 12: ...etector leadwires 1 Do not run high voltage ignition transformer wires in the same conduit with the flame detection wiring 2 Do not route scanner wires in conduit with line voltage circuits 3 Enclose...

Страница 13: ...ON TRANSFORMER 2ND STAGE FUEL VALVE OPTIONAL R W B R W B L1 HOT L2 1 8 9 10 L2 833 2725 15 SEC INTERRUPTED PILOT VALVE 2 1 3 3 HIGH FIRE PURGE SWITCH 2 POWER 00 OPERATING CONTROLS AND INTERLOCKS BURNE...

Страница 14: ...ALVE CLOSEST TO THE BURNER JR2 REMOVED FOR PILOT SEQUENCE 1 TIMED PREPURGE POWER FLAME MAIN PILOT ALARM POWER FLAME MAIN PILOT ALARM ALARM ALARM ALARM 00 IC SSC LED DISPLAY PII MV2 21 1 2 2 M28583A G...

Страница 15: ...ER POST PURGE FINISH POST PURGE HF T19 CLOSED 1 1 832 1693 120 OHM RESISTOR 832 1693 120 OHM RESISTOR 1 A B A B C C GND 13 VDC RESET 1 2 3 4 5 1 2 3 MOMENTARY PUSH BUTTON SWITCH 833 2727 KEYBOARD DISP...

Страница 16: ...ews securely without deforming the plastic Installing the Purge Card 1 Remove the Keyboard Display Module or DATA CONTROLBUS MODULE see Fig 16 or 17 2 Remove the current Purge Card from the CB780E CB7...

Страница 17: ...d installation Fig 16 Keyboard Display Module installation Fig 17 Data ControlBus mounting Remote Mounting of Keyboard Display Module 1 The Keyboard Display Module can be mounted either on the face of...

Страница 18: ...80E CB784E retaining clasp 4 Verify the amplifier is firmly in place 5 Perform all required checkout tests Installing the Flame Detector NOTE Table 5 lists the flame detection systems avail able for u...

Страница 19: ...ernal Safety Relay dropout state and concurrent with Post Purge if configured Both Valve proving occurs at both times Before and After noted above Split The downstream seat high pressure test is per f...

Страница 20: ...Switch Selection 1 Determine the maximum operating inlet pressure for the upstream valve for example 5 0 psi 140 in wc 2 Divide the inlet pressure by two 2 5 psi 70 in wc for example 3 From column 2 i...

Страница 21: ...usly Fig 23 Select Restart screen 7 To get to the next screen press the down arrow Get ting Data will be displayed then the following screen Fig 24 SETUP Valve Prove screen NOTE This screen sets up wh...

Страница 22: ...l remain energized after the demand ends NOTE The device comes standard with 15 second Post purge 13 Use the buttons to adjust the postpurge time Time changes 0 to 60 seconds in 1 second intervals 60...

Страница 23: ...Done screen 23 Press and hold the relay module RESET button for five seconds to program the Valve Proving setup into the relay module The Release Reset screen will appear on the KDM Fig 38 Release Re...

Страница 24: ...on most terminal connections when power is on 3 Open the master switch before installing or removing a jumper on the subbase 4 Before continuing to the next test be sure to remove test jumper s used...

Страница 25: ...eck the Items Listed Below 1 All None 4 L2 Line voltage at Terminal 4 1 Master Switch 2 Power connected to the Master Switch 3 Overload protection fuse circuit breaker etc has not opened the power lin...

Страница 26: ...13 19 L2 Firing rate motor drives open line voltage at Terminal 19 after motor is in High Fire position 1 High Fire Purge Switch 2 Firing rate motor and transformer 14 All 4 5 and 14 13 19 L2 Firing...

Страница 27: ...sequence the main valves to conduct the VP tests concurrently with Pre Purge beginning at 10 seconds into the purge time d The Pre Ignition Interlock input must remain closed throughout PREPURGE exce...

Страница 28: ...NDBY PURGE PILOT IGN MAIN IGN RUN and POST PURGE timing information PURGE PILOT IGN MAIN IGN and POSTPURGE in minutes and seconds hold information PURGE HOLD T19 and lockout information Lockout Fault...

Страница 29: ...ER PILOT FLAME MAIN AND ALARM PURGE DELAY High Fire Jumprd POWER PILOT FLAME MAIN AND ALARM PURGE HOLD TEST Run Test Switch POWER PILOT FLAME MAIN AND ALARM PURGE DELAY Low Fire Jumprd POWER PILOT FLA...

Страница 30: ...of selectable messages to a subset of selectable mes sages The tu push button can also be used to change from a subset message to a first level select able message The symbol located on the second in...

Страница 31: ...up o arrows until the desired second line is displayed Press the ENTER func tion Fig 44 SAVE Function c The following Display will appear Fig 45 Save Display Exit screen d Press the push button to sav...

Страница 32: ...ne msg H1 Fault Cycle nnnnn H2 Fault Hours nnnnn H2 Fault Code nnn H2 fault message H2 sequence message H2 second line msg H2 Fault Cycle nnnnn H3 Fault Hours nnnnn H3 Fault Code nnn H3 fault message...

Страница 33: ...0 DI Preignition Interlock PreIgn ILK 1 or 0 DI Pilot Valve First State Oil Valve Valv Start V25 1 or 0 DI Jumper 1 INTACT or CLIPPED DI Jumper 2 INTACT or CLIPPED DI Jumper 3 INTACT or CLIPPED DI Am...

Страница 34: ...d Line First Line Message Expanded Annun Expanded Annunciator EA not connected Current status CS a EA Message Valve Closure Valve Close T4 1 or 0 EA Burner Switch Burner Sw T5 1 or 0 EA Operating Cont...

Страница 35: ...zzle In any case do not exceed the nominal lightoff time specified by the equipment manufacturer close the manual fuel shutoff valve s if the flame is not burning at the end of the specified time WARN...

Страница 36: ...stable voltage disregarding the peaks and valleys caused by the self checking oper ation 6 The meter reading must be as specified in Table 8 after all tests are completed and all adjustments are made...

Страница 37: ...ignition terminals 8 10 or 21 refer to the appropriate wiring diagram to determine the proper terminal Disconnect the leadwire to the pilot valve if it is connected to the same terminal c Close the m...

Страница 38: ...should start the ten second INITIATE sequence 5 Let the sequence advance through PREPURGE Ignition spark should occur after PREPURGE period Listen for the click of the first stage fuel solenoid valve...

Страница 39: ...ure reading at the exact point the FLAME LED light goes out 9 Increase the pilot pressure immediately until the FLAME LED comes on and then turn it down slowly to obtain a pressure reading just above...

Страница 40: ...ions and the equipment Operating Manual Continue adjustments until hot refractory hold in is eliminated Ultraviolet Sensor Ignition Spark Response Test All Ultraviolet Detectors Test to make certain t...

Страница 41: ...occur 5 Failure to ignite main a Open the manual pilot valve s leave the main fuel manual shutoff valve s closed b Depress the reset button c Start the system d The pilot should ignite and the flame...

Страница 42: ...switch label seal It is intended to prevent and detect unauthorized access Modbus DDL Interface security Any conducts critical to device functionality DDL Modbus lines etc shall be physically protect...

Страница 43: ...tacts are free from contaminants 4 Reset and sequence the relay module to Pre Purge place the TEST RUN Switch in the TEST position if available Measure the voltage between ter minal 7 and G ground lin...

Страница 44: ...Ignition Interlock status 5 If the fault persists replace the relay module Code 5 2 High Fire Sw or Low Fire Sw Either High Fire Switch or Low Fire Switch failure 1 Check wiring and correct any error...

Страница 45: ...nals and can display the status of the terminal at the KDM example Pilot Valve T8 ON See Table 11 for a complete terminal description and number The display will show the actual status of the terminal...

Страница 46: ...yout 3 Use appropriate Results column items to fill in the Valve Train Volume Formula and the Calculation of Valve Proving Test Time 4 Round up the time to the nearest second 5 The test time calculate...

Страница 47: ...ze NPT in 2 in NPT 19 3 356 A L Pipe Length ft 1 75 ft 1 75 L P Valve Inlet Pressure psig a 2 2 P C Burner Maximum Firing cf hr b 2 5 mbtu 2500 C Table 17 V1 Upstream Volumes for Valves Models Pipe Si...

Страница 48: ...DULES WITH VALVE PROVING U S Registered Trademark 2018 Honeywell International Inc 32 00150 03 M S Rev 01 18 Printed in U S A 750 234 Fig 50 Flush mounting of a Keyboard Display Module template M5082C...

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