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Instruments & Controls

Catalog 25

Instruments &

Controls

227

5004-M-78 FLAME SAFEGUARD REPLACEMENT CHASSISProductOverview

The5004-M-78 Flame Safeguard Replacement Chassis consists of the electronics of the 5004-M-85 flamesafeguard controller, designed tomount into anexistingQ7800A1005,Q7800B1003,orCB780(833-2725)wiringsubbase. It is a direct replacement for most RM7800E, RM7800L, and CB780 flame safeguard controllers.

• Existing scanners can be reused or replaced withPreferredUV,IR,orUVself-checkingscanners.

Onemodelnumber(5004-M-78)replacesanexisting:

• Controlchassis• Displaymodule• Purgetimer• Flameamplifier

As with the 5004-M-85, the flame amplifier inputs areuniversal. Purge timing, PTFI timing, and other controlfunctionsaredeterminedbyDIPswitchselection.

*QA5004-216RemoteDisplay(Optional)

Description Catalog Number5004-M-78 Boiler FSG Controller

FSGControllerw/ IntegralDisplay.UniversalUV, IR,UVSelf-Check, andFlameRod Input.DIPswitch selectablepurge,PTFI time,RS-485ModbusCommunications.FitsQ7800A1005,Q7800B1003,andCB780wiringsubbases.QA5004-216remotedisplay.

5004-M-78

OrderingInformation

5004-M-78 Chassis terminal designations

Rear view showing connector pins

22 NOT USED

21 15 SEC MTFI

20 FUEL POC

19 HF SWITCH

18 LF SWITCH

17 EXT. RESET

F

10

9

8

7

6

SCANNER (H)

IGNITIONXFMR

MAIN VALVES

PILOT

RUNNINGINTERLOCKS

START LIMITS

5

4

3

N

G

FD FANMOTOR

120 VAC L1

ALARM

120 VACNEUTRAL

SCANNER (L)

16

15

14

13

12

NOT USED

MODULATE

LOW FIRE

COMMON

HIGH FIRE

Quanta-Flame 5004-M-78 Flame Safeguard