P1353 is a very complicated for beginner.
Open following link for manual: P1353 starts on Page 25http://waterheatertimer.org/pdf/Intermatic-P1353-manual.pdf
Following steps are general introduction.
You can add a comment about specific steps.
1) Select timer voltage: see page 26 manualhttp://waterheatertimer.org/images/P1353-voltage-selection-100.jpg
Timer can control 120V or 240V circuits.
P13553 default voltage for clock motor is 240V.
If circuit breaker that supplies power to timer is 240V, then no change is needed.
If circuit breaker that supplies power to timer is 120V, then change jumper on back of timer to 120.
Timer mechanism snaps out of box using thumb spring located top inside box.
Open link to see general wiring for P1353:http://waterheatertimer.org/images/P1353-timer-350.jpg
-Bare ground wires connect to green screw
-Line wires are power wires from circuit breaker.
For example Line wires are 240Volt, and there is 1 black wire and 1 white
Black connects to terminal 1
White connects to terminal 2
Add a jumper wire (short piece of same-gauge wire) from terminal 1 to terminal 3
Add a second jumper wire from terminal 3 to terminal 5
This will put power to clock motor and put power to switches
-Load wires go to 2-speed pump: see wiring diagram page 28
There are 3 Load wires for 2-speed pump: Usually these wires are: Black for speed-1, Red for speed-2, and White
Black speed-1 connects to terminal 6
Red speed-2 connects to terminal 4
White motor wire connects to terminal 2 to complete circuit to motor.
-Manual shows specific programming starting on page 27.
Timer has 3 circuits. Each circuit is independent of other circuit, making this a 3-channel timer.
-Select different MODES when programming timer
Select MODE 2: circuit 1 and circuit 2 will never be ON at same time, which is intended for 2-speed pump operation.
-Programming steps start on page 30 where you select MODE 2
Actual programming steps are straightforward
-Add a comment if you have difficulties and I will answer.
Also contact Intermatic directly if you encounter a glitch:http://www.intermatic.com/customer%20service.aspx
Add a comment for more free help.
Also take advantage of fixya phone service.
For a price, expert speaks with you over phone while you work on timer or any do-it-yourself project.
Fixya is always less expensive than a service call.