Finding bible verses dedicated specifically to installation is a difficult task as the spiritual ceremony is a mostly modern exercise. However there are many verses about pastoral encouragement and spiritual leadership. Below is a partial list of relevant text from the King James Bible online:
2 Timothy 4:1-5 - I charge [thee] therefore before God, and the Lord Jesus Christ, who shall judge the quick and the dead at his appearing and his kingdom.
Acts 20:28 - Take heed therefore unto yourselves, and to all the flock, over the which the Holy Ghost hath made you overseers, to feed the church of God, which he hath purchased with his own blood.
2 Timothy 4:2 - Preach the word; be instant in season, out of season; reprove, rebuke, exhort with all longsuffering and doctrine.
1 Peter 4:11 - If any man speak, [let him speak] as the oracles of God; if any man minister, [let him do it] as of the ability which God giveth: that God in all things may be glorified through Jesus Christ, to whom be praise and dominion for ever and ever. Amen.
Philippians 4:13 - I can do all things through Christ which strengtheneth me.
Romans 13:1-14 - Let every soul be subject unto the higher powers. For there is no power but of God: the powers that be are ordained of God.
Ephesians 4:11-12 - And he gave some, apostles; and some, prophets; and some, evangelists; and some, pastors and teachers; For the perfecting of the saints, for the work of the ministry, for the edifying of the body of Christ:
Isaiah 52:7 - How beautiful upon the mountains are the feet of him that bringeth good tidings, that publisheth peace; that bringeth good tidings of good, that publisheth salvation; that saith unto Zion, Thy God reigneth!
Hebrews 13:17 - Obey them that have the rule over you, and submit yourselves: for they watch for your souls, as they that must give account, that they may do it with joy, and not with grief: for that [is] unprofitable for you.
2 Timothy 4:1-2 - I charge [thee] therefore before God, and the Lord Jesus Christ, who shall judge the quick and the dead at his appearing and his kingdom.
Joshua 21:45 - There failed not ought of any good thing which the LORD had spoken unto the house of Israel; all came to pass.
John 1:1-51 - In the beginning was the Word, and the Word was with God, and the Word was God.
Acts 16:5 - And so were the churches established in the faith, and increased in number daily.
Romans 10:15 - And how shall they preach, except they be sent? As it is written, How beautiful are the feet of them that preach the gospel of peace, and bring glad tidings of good things!
1 Timothy 5:17 - Let the elders that rule well be counted worthy of double honour, especially they who labour in the word and doctrine.
There is additional scripture that can be used to celebrate or mark the occasion of installation.See more examples here.