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DocuSign Envelope ID: 9826C043- 4C32- 49CD- A4CC- DC28ABAB7CE7 <br />SECTION 239500 — MULTI - INDOOR VRV SYSTEM <br />2.05 BRANCH SELCTOR UNITS <br />A. GENERAL: <br />1. The BSQ36TVJ, BSQ60TVJ, BSQ96TVJ, BS4Q54TVJ, BS6Q54TVJ, BS8Q54TVJ, <br />BS10Q54TVJ and BS12Q54TVJ branch selector boxes are designed specifically for use <br />with VRV IV series heat recovery system components. <br />a. These selector boxes shall be factory assembled, wired, and piped. <br />b. These BSQ_T / BS(4/6/8/10/12)Q54T branch controllers must be run tested at the <br />factory. <br />c. These selector boxes must be mounted indoors. <br />d. When simultaneously heating and cooling, the units in heating mode shall energize <br />their subcooling electronic expansion valve. <br />e. The number of connectable indoor units shall be in accordance with the table below: <br />MODEL NUMBER <br />MAXIMUM CONNECTABLE <br />COOLING CAPACITY <br />MAXIMUM NUMBER OF <br />CONNECTABLE INDOOR <br />UNITS PER BRANCH <br />BSQ36TVJ <br />36,000 Btu /h <br />4 <br />BSQ60TVJ <br />60,000 Btu /h <br />8 <br />BSQ96TVJ <br />96,000 Btu /h <br />8 <br />BS4Q54TVJ <br />144,000 Btu /h <br />5 <br />BS6Q54TVJ <br />216,000 Btu /h <br />5 <br />BS8Q54TVJ <br />290,000 Btu /h <br />5 <br />BS10Q54TVJ <br />290,000 Btu /h <br />5 <br />BS12Q54TVJ <br />290,000 Btu /h <br />5 <br />B. UNIT CABINET <br />1. These units shall have a galvanized steel plate casing. <br />2. Each cabinet shall house 3 electronic expansion valves for refrigerant control per branch. <br />3. The cabinet shall contain one subcooling heat exchanger per branch. <br />4. The unit shall have sound absorption thermal insulation material made of flame and heat <br />resistant foamed polyethylene. <br />5. Nominal sound pressure levels must be measured and published on the submittals by the <br />manufacturer. These sound levels must not exceed the values below. <br />a. If an alternative manufacturer is selected, the mechanical contractor shall provide, at <br />their own cost and expense, any additional material and labor to meet the published <br />sound levels above. <br />MODEL NUMBER SOUND LEVEL dB(A) SOUND LEVEL dB(A) <br />OPERATION MAX <br />Reece, Noland & McElrath, Inc. 239500-32 Orange County Board of Elections <br />Orange Co., NC 05/04/18 <br />