Lionel Cw 80 Transformer Logo

Related Topics:

Question about Lionel Cw 80 Transformer

1 Answer

The A terminal of the transformer has no power but the accesory side does

Posted by Jim O.Connell on

1 Answer

ltd1217

  • Level 1:

    An expert who has achieved level 1.

    Hot-Shot:

    An expert who has answered 20 questions.

    Corporal:

    An expert that hasĀ over 10 points.

    Mayor:

    An expert whose answer gotĀ voted for 2 times.

  • Contributor
  • 40 Answers

Open up the transformer and make sure the terminal has not become disconnected from the power wire. Sometimes from use the terminal becomes unattached inside the casing.

Posted on Dec 05, 2013

Add Your Answer

×

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

0helpful
1answer

Air conditioning thermostat not functioning

ab302475-b998-41c7-9c7c-4e106b68e0be.pngGo to your thermostat and look at the FAN switch, it will be in the AUTO position typically.
Set the FAN switch to the ON setting,
by doing this if the fan motor operates you know that the High voltage & the low voltage (24 volt control power) are present.
This saves you from having to go to the breaker panel and checking / resetting the breaker as well as checking the Transformer and automotive type 3 amp control circuit fuse (generally on the circuit board).

If you do not get any fan operation by switching the fan switch to the ON setting, you then will have to determine if the breaker, transformer and aforementioned 3 amp fuse are all good.

You will need a volt meter to test further.
At the thermostat remove the cover thus exposing the thermostats sub base and assorted circuits/wiring.

RED or R
Red is the 24 volt "hot leg" of 24 volt power which originates at the transformer. Red enters the thermostat on the Red or R terminal, some thermostats will have an RC and an RH terminal, these are jumpered together on single transformer systems as they are for Red Cool and Red Heat, without a jumper wire on RC and RH, the Red "hot leg" of the 24 volt control voltage will only energize the terminal its wired to, some stats are battery powered and do not use the transformers 24 volt power (parasitically) to power the thermostat.
If the thermostat is powered by the transformers 24 volt power, there will be a "COMMON" wire on the common terminal of the thermostat, this is the other side of the 24 volt power from the transformer, the side opposite from RED the 24 volt "hot leg"
Common is called common as its the side of power that EVERY
24 volt circuit terminates, or completes its circuit, thus the COMMON designation.
During a Heat call the 24 volt hot leg is sent out via the white/heat terminal to the gas valve etc.
So between terminals Common & White , it should read 24 volts during a call for heat.
Same for Fan which is the Green or G terminal,
Same for Cool which is the Yellow or Y terminal.
If you have no power to these terminals when calling for heat or cool or fan then yes the thermostat is defective and requires replacement.
DO NOT let the RED wire touch ground or the COMMON terminal, this is a direct short and blows the fuse or transformer
if not equipped with fuse protection.

Normally you should read 24 volts between RED and COMMON
0helpful
1answer

How do I wire a bascule bridge # 313

Just got my bascule bridge working.
1) cener rail should be ground (U terminal on my "V" transformer) and insulated from rest of tracks.
2) Power should rails should not be insulated from the rest of the tracks.
3) on my bridge there are 5 terminals (1 farthest from the track, 5 closest to the track.
4)Power to terminal 1 (on my "V" transformer that is from A terminal)
5)Terminal 2 and three are the two ends of a "Push Button Normally Off" switch (this switch send power across the motor and to ground at terminal 3.
6)Terminal 3 has two connections. The aforementioned switch and a ground connection at the transformer ( terminal "U" on my V type transformer.
7)Terminal 4 is a ground connection from the transformer ( "U" on my "V" transformer).
8)Terminal 5 runs a jumper wire to the center Rail on the clip connection at the free end of the bridge.

Good Luck
Nov 09, 2011 • Toys
0helpful
2answers

I am trying to wire this unit to a honeywell t stat model T87N1026

Wiring a new sub-panel to an isolation transformer is one method of wiring for balanced power. With a balanced power system, the power sent to each "hot" bus of the power panel is 50 percent per bus. This means that the total power of the system is split evenly between each side of the panel. Balanced power systems have the advantage of reduced noise generation. This characteristic makes this type of system great for audio.
1.Shut off the power feeding the isolation mains transformer at the main power panel. Use the documentation supplied with the isolation transformer to locate the center-tap wire on the secondary side of the transformer. Connect that wire to the sub-panel's ground bus bar.
2.Route the remaining two wires from the secondary side of the isolation transformer into the sub-panel. Loosen the two "hot" wire main bus screws in the top center section of the sub-panel. Strip 1/2-inch of insulation off of the two wires.
3.Insert each wire separately into each of the wire screw terminals.Tighten the screws to hold the wire in place. Do not over-tighten these screws. If there is a neutral wire, connect it to the neutral common bar. Once these screws are tight, close the sub-panel.8_8_2012_9_21_38_am.jpg
0helpful
1answer

No 24 vac on yellow or compressor thermostat terminal in heat or cooling .

Turn the thermostat to off and check for 24vac between R and C or R and Y. If you don't have it then locate the transformer and check for power on the transformer primary side (120vac). If you don't have power on the primary side, check for a tripped breaker or blown fuse. If you do have it then the transformer is bad. You can confirm that by measuring the resistance of the secondary side of the transformer.
3helpful
1answer

Why two 24 Vac on aprilaire 700's control unit?

Okay, I looked up the installation manual online to see exactly what you are working with.
Yes the R anc C need to be hooked to the transformer supplied with the unit. The primary 120v side needs to be hooked into the power coming into the furnace. this can easily be done were the L and N get hooked into your furnace or circuit board on the furnace. This will provide the contiuous power to the unit. Preferably you will hook this after the door switch of the furnace so that you will kill the power toit if you take the blower door off.
The ODT terminals are for the outdoor sensor if you want to hook that up it will vary the humidiy in your home according to the outdoor temperature then.
Now the W/G and Cf terminals. If you have 24v coming from the HUM terminals of your furnace you DO NOT need a second transformer. You must check your furnace manual or check the voltage to them with the furnace blower energized. The HUM terminals will only have power to them when the blower should be running.
If the HUM terminals are 120v then you need to get another transformer and hook up the primary side to the HUM terminals so it is powered only when the the blower is running. Hook the secondary side to the W/G and Cf terminals.
So bottom line is that you need to figure out what voltage your furnace is giving to the HUM terminals and then go from there. Some times the EAC terminals or the ACC terminals will be 24v on the furnace board. Either of them could be used also, as they are only energized when the blower is running also.

Heatman101
0helpful
1answer

How do i install a zone valve in my hot water heater. I need the schematic from boiler controller to the valve. if I tie the first floor to one valve , the rooms (2) will be on the last section before the...

The two zones have seperate supply and returns, correct? If not zoning will not be possible without piping the system in that way. Assuming the piping is correct, for two zones, you will need two zone valves, one cut into each zone. The wiring will vary, but for a 3 wire zone valve, (Taco), power from the transfomer goes through the thermostat, into terminal 1 on the Zone Valve, Terminal 2 on the zone valve goes back to the transformer, (24v common), and also to one "T" terminal on the aquastat (boiler control), and Terminal 3 on the zone valve goes to the other "T" terminal on the aquastat.

For a Honeywell, or other motorized Zone Valve, power again goes from the transformer, through the thermostat and into one side of the motor contacts/wires (depending on brand), the other motor wire goes back to the transformer, (24v common) Then the two end switch contact/wires go back to the T T terminals on the aquastat.

If you are using motorized zone valves, and only 2 of them, the transformer in the aquastat will be strong enough to power them.

Hope this helps
0helpful
1answer

My ac unit does not have power to the thermostat. There is 200 volts going into the transformer and 24 volts going out. There is 24 volts on the back side of a terminal with thermostat wire running to the...

Please exercise due caution in checking voltages in live circuits!

24 volts sourced by the transformer, through the thermostat, then through the contactor (turns on power to compressor/fan) and returns to the transformer, If the thermostat is closed (calling for cool) you will see no voltage across it, but instead the contactor should be energized. Please note, 200 volts seems odd, you should have between 215 and 235. It sounds more like the contactor relay coil may be open. Is the contactor/transformer one piece?
0helpful
1answer

Looking for technical manuals

I talked to 3 different departments at ITI, they all say you can't get them anymore (sales, tech support, and repair) No one even has a number for a refurb equipment company.

LINE CARRIER POWER TRANSFORMER
: : ITI part #60-145-235 Canada part #60-366
: : The power transformer supplies a DC voltage of approximately 13 to 14 VDC (unloaded) to the CPU through terminals 1 & 2. Additionally,it contains the line carrier circuitry for the Wireless Interior Siren through terminal 3. The AC power indicator voltage for the CPU is carried through terminal 4.
: : The Transformer is fused with a 400 mA fuse on the primary side of the transformer. Replace only with a 400 mA 250V Time Lag Fuse (ITI Part #33-023).
This is all I could locate, hope something here helps.
please leave rating. thank you
0helpful
1answer

RCA 3870 Receiver problem..RE/RE

On the secondary of the transformer you would still have an ac voltage. The dc voltage will be after the bridge rectifier.
0helpful
1answer

"Accesory Power" outlet not working. Can't find fuse.

CIG LTR Fuse 15 amp located in the under hood fuse box. Plus AUX PWR 1 fuse 20amp also located in the underhood fuse box.
Not finding what you are looking for?

207 views

Ask a Question

Usually answered in minutes!

Top Lionel Crafts & Hobbies Experts

ADMIN Andrew
ADMIN Andrew

Level 3 Expert

57153 Answers

Tom Chichester

Level 3 Expert

62329 Answers

Carolyn Rogers

Level 2 Expert

145 Answers

Are you a Lionel Craft and Hobby Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...