Search: Posts Made By: navi4
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Replies: 1
Views: 357
Posted By navi4

How to reset Honeywell L7224U

My peerless is running as cold start. It is not turning on for the tankless coil. But it run fine for the heating call.

High Limit set to 190
Low Limit set to 160
LDF set to 15

I tried to...
Replies: 8
Views: 581
Posted By navi4

sorry guys, thanks for your suggestions. I was...

sorry guys, thanks for your suggestions. I was out town for work. Now I am back.

I have tried the instructions from page 5. If I got HL setting, it goes up to 239 but don't get off option.

The...
Replies: 8
Views: 581
Posted By navi4

It say L7224 A, C. It is installed in 2003 as per...

It say L7224 A, C. It is installed in 2003 as per date.
Replies: 8
Views: 581
Posted By navi4

It is L224C. Yes it is electronic. Display has...

It is L224C. Yes it is electronic. Display has HL, LL, LDF, DUU, ASC.

Since it does not have HDF, it seems to LL boiler. I have set the LDF to 10/15/25 wiht LL set to 165. Nothing worked. Still a...
Replies: 8
Views: 581
Posted By navi4

Peerless with Honeywell L7224 wiring for tankless coil

Hi all,

I am dealing with peerless boiler WBV-03 with honeywell L7224 aquastat. Originally it is set for indirect water heater and tankless coil both feeding to the domestic hot water.

A red...
Replies: 27
Views: 2,254
Posted By navi4

This has gas valve vr8304m3194. Then burner is...

This has gas valve vr8304m3194. Then burner is 63200-001, I could not find the brand name. It has serial #4697. Then it is connected to Honeywell 8600. The metal box on the blower has 24 volt...
Replies: 27
Views: 2,254
Posted By navi4

I am back to the boiler. Same story, it did not...

I am back to the boiler. Same story, it did not fire. So i checked the RB voltage at 6006 when it suppose to fire but it did not, it is 0 volt which means 6006 is okay. Now i am standing here, boiler...
Replies: 27
Views: 2,254
Posted By navi4

the only wiring to this burner is the X X wires...

the only wiring to this burner is the X X wires from the 832 relay to the burner, and the 120VAC wiring which travels through the 6006 aquastat. Does that appear to be correct?

You are correct.
...
Replies: 27
Views: 2,254
Posted By navi4

Sorry NJ, I forgot to mention that I have not...

Sorry NJ, I forgot to mention that I have not tested the following step in L6006,

Repeat the same test when the burner SHOULD BE firing but is NOT.

It is set at 180. The DIFF wheel is 5.

I...
Replies: 27
Views: 2,254
Posted By navi4

I have already checked the voltage at L6006 in...

I have already checked the voltage at L6006 in two cases;

When the boiler is fired: 0 V at RB

When boiler turned off: 120 V at RB

When fired again: 120V at RB
Replies: 27
Views: 2,254
Posted By navi4

I have attached a wiring diagram. The...

I have attached a wiring diagram.

The boiler was not running yesterday. I turned off the heat from the thermostat. Then turned off the power at boiler. Then I turned the power on. NO heat call,...
Replies: 27
Views: 2,254
Posted By navi4

Heat is running since yesterday. But I found a...

Heat is running since yesterday. But I found a new thing, one of the thermostat wire wire has short. So the zone valve is continuously running and so the circulation. Nor I have a question, Is it...
Replies: 27
Views: 2,254
Posted By navi4

another question is: aquastat has only wire which...

another question is: aquastat has only wire which is coming from the main switch. There is no connection to R832A or burner? How would it tell the burner to fire again when there is no connection?
Replies: 27
Views: 2,254
Posted By navi4

I have not noticed this before. This is started...

I have not noticed this before. This is started happening in last few weeks. Right I am using electrical heaters in each room.

As you stated If the thermostat CONTINUES to call for heat, when the...
Replies: 27
Views: 2,254
Posted By navi4

Pics and last night test

When I got to the boiler, thermostat call was there, boiler hasn't fired once after the first fire. No hot water in pipes. Circulator was running.

I turned the boiler off from main switch. zone...
Replies: 27
Views: 2,254
Posted By navi4

boiler model

I don't know how old it is. It looks like it is Weil Mclain 78 gas boiler. It was running for a while but the heat used to be in 80's. Then it stopped running. Now as I explained earlier, we can fire...
Replies: 27
Views: 2,254
Posted By navi4

Gas Boiler not firing

I have a old Weil Macain gas boiler. It has two zone heat - taco zone valve 571.

I have replaced one of zone valve head.

The system has a auxiliary transformer from which the load (red wire...
Replies: 11
Views: 5,261
Posted By navi4

Wire Test

Finally I am done with wire test. I ran temporary wire and relocated the thermostat. Everything runs normal for a week. Thank you. You saved me from replacing the control panel.

Thanks again
Replies: 11
Views: 5,261
Posted By navi4

Thermostat test

Thank you for a quick response. I switched the Zone 2 and Zone 3 thermostats. I did not change the panel wiring.

Problem persists with the Zone 3. The replaced thermostat for Zone 2 works fine....
Replies: 11
Views: 5,261
Posted By navi4

Sorry I lost track last year, now winter is back and problem is back.

NJ, you are the correct, I have exact model the one you have in picture.

on top, there are three Zone valve terminals. each has two wires. One wire is coming from each thermostat, and second is...
Replies: 11
Views: 5,261
Posted By navi4

Exact same problem with Taco ZVC403

Hi NJ,

I have the exact same problem with Taco ZVC 403. I inherited the system 3 years back, there was no problem until last month. I have 3 zone system controlled by ZVC 403. One of the zone is...
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