1. The defendant's appeal is dismissed.

2. The costs of appeal shall be borne by the Defendant.

Purport of claim and appeal

1...

Basic Facts

The plaintiff is a business operator who engages in interior business with the trade name of "D".

On March 24, 2015, the Plaintiff entered into a contract with the Defendant for interior works (hereinafter “instant construction works”). The total amount of construction contracts is KRW 5,000,000 (value-added tax) and the construction period is from March 25, 2015 to April 24, 2015; the warranty period is from March 25, 2015 to April 24, 2015; the warranty period is one year from the date of completion; and the warranty rate is 3/1,000 (0.3%) deducted from the daily contract amount; the same condition at the time of failure to pay the construction cost.

The Plaintiff performed construction works according to the instant construction contract and completed May 5, 2015, and received total of KRW 56,500,000 (hereinafter “instant construction cost”) from the Defendant as the construction cost.

[Ground of recognition] The plaintiff asserted by the plaintiff as to the plaintiff's ground of appeal as to the plaintiff's ground of appeal as to the plaintiff's grounds of appeal as to Gap's evidence Nos. 1 through 3, and the whole purport of the pleading was not paid 21,610,00 won for the installation of the air conditioner (excluding 3,00,000,000 won, including the construction cost for the term payment in the case of 10,796,000 won) and the additional construction cost, even though the plaintiff's ground of appeal was implemented according to the construction contract in the case of this case after the construction work in accordance with the construction contract in each room at the defendant's request, and the additional construction work was implemented at the defendant's request.

The Defendant asserted that the construction contract of this case included installation works for cooling air conditioners within the construction scope, and the Defendant did not agree with the Plaintiff on additional construction works.

Judgment

According to the evidence No. 3 of each room Gap's judgment on the claim for the cost of installation of air conditioners, the related parts among the construction scope under the instant construction contract agreed upon between the parties are as follows.

2. 1) The air conditioning systems (A/C) the entire electrical pipeline distribution lines (Contact Location 2) each of the air conditioning systems (A/C) the construction works;

4. The installation of cooling/heating systems 1.