Type: Posts; User: mike3
I drain the water lines and leave stat at 55 in Portland Oregon area
Same as keeping jumper in green-yellow and yellow-white at the same time. Keeps coil pulled in
You may want to take the pilot out of the system for testing. Unplug the molex plug. Install a jumper in the green and yellow holes. After pilot lights remove jumper and install in the white and...
What appliance are asking about and what is the delivery pressure from the meter? If nat gas probably 7".
Testing a millivolts system is a little different from a 24volt system. You must know the values of various pilot generators, what reads to expect across the different test points. What read would...
I think you are correct. They took over the old General Controls co.
Norton igniter. 3.2-3.6 amps
You need to take an amp reading
An open read is pretty much useless unless it is low. I've seen thermocouples show an open read of 21-22 or so and show 0-1 under load. Remember the values such as 30mv. 250mv. 750mv are open reads...
My SWAG is a dirty pilot or restricted orifice
Millivolt systems can be tricky if you have limited experience with them. First you need to know the types of pilot generators and their ratings. Next where to take reads , what they mean and what...
What, thermocoupler ?
Four items put DNP products into continuos fan and no heat
1-bad transformer 2-open limit/rollout switch 3-open fuse link 4- bad board
Spark generator for a 3 wire system??
I had the filters across the back of the truck on top of old metal file drawers I used for fittings. Seemed to work pretty well, open double back doors and they were right there.
Speaking of old Lennox units, who remembers the in-wall unit, no blower, millivolt system. Sorry I don't have a model number. If memory serves me it was rated at 50,000.
Replaced several hx sections in horizontals. Was pretty quick
Keep it going, I've worked on zillions of those. Love them, easy to troubleshoot and pretty much bulletproof.
PG-9 open read factory fresh-750mv
With the thermostat calling for heat, take reads at the gas valve as follows. 1-...
Nobody has mentioned energizing the tstat and have the blower come on after a few seconds when the gas is off. That is a sure indication there is a "heat assist" fan switch (control) installed.
One problem that occurs is a power outage. If the furnace is in operation at the time of the outage the limit will open.
Wrong terminology used here. It is not a heater for the LIMIT. Camstat was one of the mgf's. They had 6 wire controls and 4 wire controls. Lennox and DNP used them several years ago, before...
Hasn't run in 10 years, heck yes there is a spider in there
Bingo, I taught our guys to take proper reads FIRST and then if in doubt use jumper and screwdriver and also take read from that.