Honeywell S7800 Keyboard Display for 7800 Series Flame Safety Control

[@jasonjohnsonHVAC]

I have my own personal 7800 digital display i keep on my truck

[@aliyousefi4835]

hi i have burner honeywell model rm7890a1015 and key board display s7890a1142 . by the way i have 2 module rectification flame amplifire and ultra violet flame amplifire. .my question is how can i change the parametr for burner amolifire with the keyboard display module ?and another question i dont have any flame detector ,i want to test controller . how can i do

[@gordonschweizer5154]

As I said in my response to your question regarding the reader, the S7800 display is NOT used to change the parameters for the RM7890. That is a whole other topic far beyond this Channel. I have no idea what is going on with your other questions, sorry. You are going to need someone qualified with RM7800 controls to actually physically look at what you have.

[@CheiithooCat]

Please more videos

[@gordonschweizer5154]

Thank you! Any requests?

[@taverasf]

Lockout 28 on a boiler running on oil #2 please

[@taverasf]

@@gordonschweizer5154 also lockout 29 on a boiler running on oil #2

[@sebva7189]

I get this purge hold (high fire switch) ringing all the time. What can this be? Help!?

[@gordonschweizer5154]

Going out on a limb, I'd check if the pressure switch proving air flow is working.

[@aliyousefi4835]

hi can i change the parameter with S7800A1142 Keyboard Display Module ?

[@gordonschweizer5154]

I don't think so. As far as I know, the reader does just that, i.e. it reads out what is going on with the FSC. I suspect it would not be a good idea to allow anyone access to parameter changes in such an important safety control.

[@l.crossjr]

7800 won't go into Alarm. If any of the safeties trip, the boiler shuts off as intended but will not generate the alarm at burner controller. (Bottom alarm light does not turn red and does not provide power to alarm light on panel or buzzer) Site has 3 boilers all have the same issue. Any ideas? Thanks in advance

[@gordonschweizer5154]

If you only had one boiler, I'd suspect the control itself was going bad, but all three? Hmmm. I don't know. Is this a new problem or has this just started? Is it some kind of wiring issue? Can you pull one of the controls and take it to a controls vendor who has a controls tester?

[@l.crossjr]

@@gordonschweizer5154 wiring appears fine. I can test the alarm by pressing the Reset button for 3sec. When doing so, the alarm triggers as intended.

[@gordonschweizer5154]

@@l.crossjr New problem or just started?

[@l.crossjr]

@@gordonschweizer5154 seems like an existing issue.

[@gordonschweizer5154]

@@l.crossjr Ah! And I presume the same installer put them in at about the same time? I'd maybe get in touch with the burner's tech service and run it by them. This all is starting to approach the vast frontier of my ignorance.

[@AtechnicianMan]

standby hold: F/G Please remedy

[@gordonschweizer5154]

Could you elaborate as to your meaning?

[@AtechnicianMan]

@@gordonschweizer5154 we have fault on bms Honeywell rm 7800 "lockout 35 internal fault ".how we fix?

[@gordonschweizer5154]

@@AtechnicianMan It is likely that you will need to replace the control.