Need help hooking up a single pole Leviton dimmer switch

Leviton PR180 is a single-pole or 3-way motion activated light switch.
Resources:
http://www.leviton.com/OA_HTML/ibeCCtpItmDspRte.jsp?item=452283§ion=10892&minisite=10026

The green connects to bare ground wire.
The yellow-red is not used EXCEPT to replace 3-way switch. Cap off yellow-red wire when wiring single-pole.

Your single pole switch has two black wires.
One black wire is Hot from breaker, and the other black wire goes to Load.
Turn power on, and test each black wire to bare copper wire. Tester lights up on Hot wire.

Hot wire connects to PR180 black wire.
Load wire connects to RR180 red wire

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Switches are not identified.
Single-pole switches are wired differently than 3-way.
Wire colors are not identified. Some boxes have red and black wires that carry power.
Add a comment and fill out details after studying image and reading information.
I am not there, so you can also add a comment and include in-focus photo of your switches that you posted on Flickr.

Following image shows single-pole switches, with typical black and white wires.
No bare copper ground wire is shown. Ground wires connect to green screw.
http://waterheatertimer.org/images/Single-pole-switches-in-4-g.jpg

So your new switch has 2 brass screws. No white wire connects to single-pole switch. One screw will have 1 black wire that goes to light fixture. The other screw will have 1 or 2 black wires that jumper or connect to the other switches as shown in image.

White wires are usually twisted together and covered with wire nut and pushed to back of box.

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Open following link to identify timer:
http://waterheatertimer.org/Countdown-timer-horsepower-ratings.html#6230

Leviton 6200 series timer replaces single-pole switch. Will not work for 3-way or 4-way applications.
Timer has 4 wires: Blue, Black, White, Green
Timer Green to bare copper wire.
Timer Black to Hot wire from breaker.
Timer White to Neutral wire from breaker. Neutral wires are white wires that are twisted together and covered with wire nut pushed to back of box. If box does not have neutrals, connect Timer white to bare ground wire.
Timer Blue to Load wire.
If timer does not work, reverse Timer Black and Timer Blue.

Hook one of the wires that was connected to the black wire to the silver screw, one to the brass screw. Does not matter which. If there is no ground (bare or green) then you can hook one from the green screw on the switch to the box where the other grounds are connected.

1) First of all you need to determine what device you are replacing. Single-pole or 3-way.
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2) If you are replacing single-pole switch, that is where one switch controls the Load (light fan motor)
Here are instructions for installing ipp15-11 Motion switch for single-pole replacement.
Old switch has 2 insulated wires plus bare ground wire.
Ipp15 bare copper ground wire will connect to bare copper ground wire.

Separate switch wires for testing.
Use ordinary two prong tester, tape tester leads to wood sticks to keep hands away from power.
Turn power ON.
Test each wire to bare ground wire.
Tester lights up on Hot wire. This wire will connect to ipp15 screw marked BL black.
The other wire that came off switch will connect to ipp15 screw marked RD red
Hot wire is identified.
Located in back of box are white wires that are twisted together and covered with wire nut. Remove this nut.
Now test Hot wire to all other wires in box, excluding bare ground wire.
Tester lights up on neutral wires. ipp15 screw marked WH white connects to neutral wires.
If your box does not have neutral wire, then connect ipp15 WH white to bare ground wires.

4) If you are replacing 3-way switch, that is where 2 different switches control the same Load (light fan motor.
3-way switch has 3 insulated wires and a bare ground wire.
Note screw colors on old 3-way switch. Dark screw is the Load wire. The 2 brass screws are the travelers.
From the ipp15 instructions, it appears you will need Viza Coordinating Switch Remote plus a sensor device to accomplish the 3-way installation.
If you have both of these devices and want free written instructions, then add a comment and I will verbalize contents from the manual.
Also you can pay a fixya expert to talk over the phone.

5) Leviton also offers technical assistance at 1-800-824-3055

Electrician test wiring before connecting anything.
First of all, you don't mention what type of switch was replaced.

1) Leviton 6230 countdown timer is made to replace single-pole light switch only.
Single pole is where 1 switch controls the Load (light fan motor)

Your wiring sounds like 3-way switch.
3-way is where 2 switches control same Load.
For example a hallway usually has 3-way switches.

To confirm. If old switch has 1 dark screw, 2 brass screws, and 1 green screw, then that is 3-way switch. Use Leviton LTB15, LTB30, LTB60, LTB02, LTB12 countdown timer for 3-way.
Smarthome sells product and shows .pdf manual
http://www.smarthome.com/4255/Leviton-LTB60-1LZ-4-Button-10-20-30-60-Minute-Countdown-Timer-Switch/p.aspx


2) If old switch has 2 brass screws and 1 green screw then that is single-pole switch.

3) If you are replacing single-pole switch, here are testing & wiring instructions for Leviton timer.
Remove device and separate wires for testing.
Use ordinary two wire tester.
Tape tester leads to wood sticks so hands are away from power.
Do not untwist wires that were twisted together before you started.
Turn on power.
Test each wire to bare ground wire.
Tester lights up on Hot wire. This wire will connect to timer black wire.
Now you know Hot wire.
Test Hot wire to each of the other wires, excluding bare ground wire.
Tester lights up on neutral. Timer white wire connects to Neutral wire.
If box does not contain Neutral wire, then timer white wire connects to bare ground.

Timer green wire connects to bare ground wire.
Timer red wire connects to wire going to Load.

One black is will hook up to one of the black wires inside the switch box in the wall and the other will hook to the other black wire in the box, The green will connect to the bare copper wire which is the ground wire.

You are correct in assuming green is the ground and connects to bare copper wire. Black is always the HOT wire and should be attached to the black wire. Red wire connects to white wire.

I'm not sure if this is going to work in your case, but I'm pretty sure it will...

Green to ground (probably bare)
Black to black
White to the red that's not labeled 3-way
wire nut on the red labeled 3-way

That should fixya!

ALL you really need to worry about is the white and black wire that you hooked up before. The green ground screw is not needed. If you have a bare wire completely bare all the way, you can hook it to the green, but it is not required to work.
The other 2 screws are for the switch. It does not matter which wire goes where, as the switch just puts them together, and takes them apart.