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DocuSign Envelope ID: 9826C043- 4C32- 49CD- A4CC- DC28ABAB7CE7 <br />SECTION 239500 — MULTI - INDOOR VRV SYSTEM <br />►JII�[�[c71 <br />1. The control voltage between the indoor and condensing unit shall be 16VDC non - <br />shielded, stranded 2 conductor cable. <br />2. The control wiring shall be a two -wire multiplex transmission system, making it possible <br />to connect multiple indoor units to one condensing unit with one 2 -cable wire, thus simpli- <br />fying the wiring installation. <br />3. The control wiring maximum lengths shall be as shown below: <br />C. REFRIGERANT PIPING: <br />1. The system shall be capable of refrigerant piping up to 540ft (165m) actual or 623ft <br />(190m) equivalent from the condensing unit to the furthest indoor unit, a total combined <br />liquid line length of 3,280ft (1,000m) of piping between the condensing and indoor units <br />with 295ft (90m) maximum vertical difference, without any oil traps or additional compo- <br />nents. <br />2. REFNETTm piping joints and headers shall be used to ensure proper refrigerant balance <br />and flow for optimum system capacity and performance. <br />a. T style joints shall not be acceptable as this will negatively impact proper refrigerant <br />balance and flow for optimum system capacity and performance. <br />Reece, Noland & McElrath, Inc. 239500-23 Orange County Board of Elections <br />Orange Co., NC 05/04/18 <br />CONDENSER TO <br />CONDENSER TO <br />INDOOR UNIT TO <br />CENTRAL <br />INDOOR UNIT <br />REMOTE CONTROL <br />CONTROLLER <br />CONTROL WIRING <br />6,560 ft (2,000 m) <br />3,280 ft (1,000 m) <br />1,640 ft (500 m) <br />LENGTH <br />WIRE TYPE <br />16/18 AWG, 2 wire, non - polarity, non - shielded, stranded <br />C. REFRIGERANT PIPING: <br />1. The system shall be capable of refrigerant piping up to 540ft (165m) actual or 623ft <br />(190m) equivalent from the condensing unit to the furthest indoor unit, a total combined <br />liquid line length of 3,280ft (1,000m) of piping between the condensing and indoor units <br />with 295ft (90m) maximum vertical difference, without any oil traps or additional compo- <br />nents. <br />2. REFNETTm piping joints and headers shall be used to ensure proper refrigerant balance <br />and flow for optimum system capacity and performance. <br />a. T style joints shall not be acceptable as this will negatively impact proper refrigerant <br />balance and flow for optimum system capacity and performance. <br />Reece, Noland & McElrath, Inc. 239500-23 Orange County Board of Elections <br />Orange Co., NC 05/04/18 <br />