how to turn animator on if bool = true

hi i am having trouble trying to get my door open animator to work .
i would like the animator component to be off on start and to come on when the bool chestOpened is true. i am coding in c# i just want a bit of code to say if bool == false animator not active
if bool is true turn on animator
(see picture for what i would like to control from script)

any help would be appreciated.

I found out what my problem was. i wanted the door open animation in the animator to play when the bool chestOpened is true. I had not set up the animator properly. this tutorial helpped with that:

basically i created 2 animations in the animator the first one was doorClosed the second was door opening.

i created a bool in the animator called openDoor.

i set the doorClosed animation to default then created a transition from doorClosed to doorOpened.
and in the inspector within the transition i added the condition that of openDoor is true then transition to doorOpen animation.

then i wrote a simple script as follows:
using UnityEngine;
using System.Collections;
using UnityEngine.SceneManagement;

public class openDoor : MonoBehaviour {

    public ChestKey chestKey;

    public Animator anim;

    public bool doorOpen;

    // Use this for initialization
    void Start ()
        chestKey = GameObject.Find("Chest").GetComponent<ChestKey>();

        anim = GetComponent<Animator>();
	// Update is called once per frame
	void Update ()
        anim.SetBool("doorOpen", doorOpen);

        if (chestKey.chestOpened)
            doorOpen = true;
            Debug.Log("door is open");
        if (!chestKey.chestOpened)
            doorOpen = false;

Probably the easiest way you can do this is the way you enable and disable any other of the components , with GetComponent<>().enabled

So your script will look like this :

void Update () {
		if (myBool) {
			GetComponent<Animator> ().enabled = true;

Keep in mind that you should place this code on the same gameObject that the animator is