3
The cover photograph is for illustrative purposes only and is not part of any offer for sale or contract.
9 - NOMINAL SYSTEM WATER FLOW CONTROL ........................................................................................................... 28
9.1 - Water flow control procedure .............................................................................................................................................. 28
9.2 - Pump pressure/flow rate curves ............................................................................................................................................ 29
9.3 - Available static system pressure ........................................................................................................................................... 31
10 - MAJOR SYSTEM COMPONENTS ................................................................................................................................... 35
10.1 - Compressors.......................................................................................................................................................................... 35
10.2 - Lubricant ............................................................................................................................................................................... 35
10.3 - Condensers ............................................................................................................................................................................ 35
10.4 - Fans ........................................................................................................................................................................................35
10.5 - Electronic expansion valve (EXV) ....................................................................................................................................35
10.6 - Moisture indicator ................................................................................................................................................................ 35
10.7 - Filter drier ............................................................................................................................................................................. 35
10.8 - Evaporator ............................................................................................................................................................................ 35
10.9 - Refrigerant ............................................................................................................................................................................ 36
10.10 - High-pressure safety switch .............................................................................................................................................. 36
10.11 - Fan arrangement ................................................................................................................................................................. 37
10.12 - Fan stages ............................................................................................................................................................................ 37
11 - OPTIONS AND ACCESSORIES ........................................................................................................................................ 38
11.1 - Free-cooling system (option 118A) .................................................................................................................................... 38
11.2 - Total heat reclaim (option 50) .............................................................................................................................................38
11.3 - Partial heat reclaim using desuperheaters (option 49) ....................................................................................................43
11.4 - Units with fans with available pressure for indoor installation (option 12) .................................................................. 49
11.5 - Brine option .......................................................................................................................................................................... 56
11.6 - Unit storage above 48°C (option 241) ............................................................................................................................... 57
11.7 - Other options and accessories ............................................................................................................................................58
12 - STANDARD MAINTENANCE ......................................................................................................................................... 59
12.1 - Level 1 maintenance (see note opposite) .......................................................................................................................... 59
12.2 - Level 2 maintenance (see note opposite) .......................................................................................................................... 59
12.3 - Level 3 (or higher) maintenance (see note below) .......................................................................................................... 59
12.4 - Tightening torques for the main electrical connections ................................................................................................... 60
12.5 - Tightening torques for the main bolts and screws ............................................................................................................ 60
12.6 - Condenser coil ...................................................................................................................................................................... 60
12.7 - Evaporator maintenance ..................................................................................................................................................... 61
12.8 - Characteristics of R-410A ................................................................................................................................................... 61
13 - START-UP CHECKLIST FOR 30RB LIQUID CHILLERS (USE FOR JOB FILE) ............................................... 62
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