check 4 row coil performance compared to 6 row coils. 8,000-20,000 600 MBH 40-70 Required for some Check 4 row coil Tandem performance E Horizontal SA 16,000 Max (XL 1,600 MBH (XL) compressors to ensure price savings for Cabinet ONLY) (Vertical) minimal performance drop. NO Horizontal RA (E AND Above 1200 MBH EXL) 1,200 MBH (XL) (Horizontal) REFRIGERATION CONTROLS GUIDELINES Use the following table to ensure the correct PR selections are made. PR Series Refrigeration Controls Application Based on Compressor Selection Compressor How to Implement How to Implement How to Implement Type HGRH HGBP Notes Liquid Subcooling Single Circuit REQUIRED for 100% OA Units 96 MBH capacity and Standard applications. BELOW Scroll/Single Circuit Staged or Modulating.. Select HGBP on the Lead circuit Select Dual Circuit OR Select Dual Circuit HGBP ONLY Units 120 MBH capacity and Dual Scroll/ Single Circuit ABOVE Dual Circuit Staged or Modulating. DO NOT select with Dual Single Circuit Units 96 MBH capacity and Digital Scroll/Single Circuit HGRH. No HGBP with Digital Scrolls. BELOW Circuit Staged or Modulating. Select with Single Circuit Heat pump and water source HGRH OR alone. REQUIRED for 100% OA Single Digital and Select Dual Circuit OR applications. Digital Scroll ALWAYS on Single Scroll(Dual DO NOT select with Heat Single Circuit lead circuit. Circuit) Pump applications. Select HGBP on the Lag circuit Staged or Modulating. Units 120 MBH and ABOVE Select Dual Circuit OR No HGBP with Digital Scrolls. Units 120 MBH and ABOVE Dual Digital Scroll Single Circuit (Dual Circuit) Staged or Modulating.
check 4 row coil performance compared to 6 row coils. E Cabinet 8,000-20,000 Horizontal SA 16,000 Max (XL ONLY) NO Horizontal RA (E AND EXL) 600 MBH 1,600 MBH (XL) (Vertical) 1,200 MBH (XL) (Horizontal) 40-70 Required for some Tandem compressors Above 1200 MBH Check 4 row coil performance to ensure price savings for minimal performance drop. REFRIGERATION CONTROLS GUIDELINES Use the following table to ensure the correct PR selections are made. PR Series Refrigeration Controls Application Based on Compressor Selection Compressor Type How to Implement HGRH How to Implement HGBP Notes How to Implement Liquid Subcooling Standard Scroll/Single Circuit Single Circuit Staged or Modulating.. REQUIRED for 100% OA applications. Select HGBP on the Lead circuit Units 96 MBH capacity and BELOW DO NOT select with Dual Circuit HGRH. Select with Single Circuit HGRH OR alone. DO NOT select with Heat Pump applications. Dual Scroll/ Dual Circuit Select Dual Circuit OR Single Circuit Staged or Modulating. Select Dual Circuit HGBP ONLY Units 120 MBH capacity and ABOVE Digital Scroll/Single Circuit Single Circuit Staged or Modulating. No HGBP with Digital Scrolls. Units 96 MBH capacity and BELOW Heat pump and water source Single Digital and Single Scroll(Dual Circuit) Select Dual Circuit OR Single Circuit Staged or Modulating. REQUIRED for 100% OA applications. Select HGBP on the Lag circuit Digital Scroll ALWAYS on lead circuit. Units 120 MBH and ABOVE Dual Digital Scroll (Dual Circuit) Select Dual Circuit OR Single Circuit Staged or Modulating. No HGBP with Digital Scrolls. Units 120 MBH and ABOVE
Addison%20PR%20Selection%20Guidelines%20030817.docx