Carrier AquaSnap 61WG Series Installation, Operation And Maintenance Instructions

Also see for AquaSnap 30WG Series: Operation instructions

Contents

Carrier AquaSnap 61WG Series Installation, Operation And Maintenance Instructions Manual pdf 3 page image

6 - ELECTRICAL CONNECTION .....................................................................................................................................................426.1 - Electrical connections, control box ..........................................................................................................................................426.2 - Power supply ...........................................................................................................................................................................426.3 - Voltage phase imbalance (%)..................................................................................................................................................426.4 - Recommended wire sections ..................................................................................................................................................426.5 - 24 V user power reserve .........................................................................................................................................................437 - 30WGA UNIT CONNECTIONS ....................................................................................................................................................447.1 - Recommendations for the installation of liquid chillers with remote condenser ...................................................................... 447.2 - Piping installation and connection ...........................................................................................................................................448 - PIPE SIZING WITH REFRIGERANT FOR 30WGA UNITS ......................................................................................................... 458.1 - General considerations and pipe size limits ............................................................................................................................ 458.2 - Pipe sizing ...............................................................................................................................................................................458.3 - Discharge pipe sizing ..............................................................................................................................................................459 - WATER CONNECTIONS .............................................................................................................................................................479.1 - Operating precautions .............................................................................................................................................................479.2 - Water connections ...................................................................................................................................................................479.3 - Frost protection .......................................................................................................................................................................489.4 - Flow switch (units without hydraulic module) .......................................................................................................................... 4810 - NOMINAL WATER FLOW CONTROL WITH FIXED-SPEED PUMP ........................................................................................ 4910.1 - General..................................................................................................................................................................................4910.2 - Water flow control procedure ...............................................................................................................................................4911 - NOMINAL WATER FLOW CONTROL WITH VARIABLE-SPEED PUMP................................................................................. 5111.1 - Pump flow/pressure curve .....................................................................................................................................................5111.2 - Available external static pressure (variable-speed High / Fixed speed-pressure Double pumps, units with hydraulic module... 5111.3 - Available external static pressure (Variable speed / fixed-speed high-pressure single pumps, units with hydraulic module)5211.4 - Available external static pressure (Variable-speed / Fixed speed Low pressure single pumps, units with hydraulic module.5312 - OPERATION OF 30WG UNITS WITH SPECIFIC HEATING CONTROL (OPTION 153).......................................................... 5412.1 - Operating principle ................................................................................................................................................................5412.2 - Auxiliary electronic board (AUX1) - analogue and digital inputs and outputs ....................................................................... 5413 - OPERATION OF 30WG UNITS WITH THE HEATING SYSTEM MANAGER (HSM) ............................................................... 5514 - 30WG/61WG UNIT OPERATION WITH A DRYCOOLER (OPTION 154) ................................................................................. 5614.1 - Operating principle ................................................................................................................................................................5614.2 - Communication to control the drycooler ................................................................................................................................ 5614.3 - Configuration of the number of fan stages and the automatic changeover of the fan stages ............................................... 5614.4 - Fan stage assignment ...........................................................................................................................................................5614.5 - Units without evaporator and condenser pump, three-way valve configuration for low outside temperature application ..... 5614.6 - Drycooler installation on units ...............................................................................................................................................5615 - 30WGA UNIT OPERATION WITH A REMOTE AIR-COOLED CONDENSER (OPTION 154) ................................................. 5715.1 - Operating principle ................................................................................................................................................................5715.2 - Lead fan ................................................................................................................................................................................5715.3 - Communication to control the remote condenser.................................................................................................................. 5715.4 - Configuration of the number of fan stages and fan type based on the air-cooled condenser model used in the installation 5716 - UNIT OPERATION WITH A FREE COOLING DRYCOOLER ................................................................................................... 5816.1 - Operating principle ................................................................................................................................................................5816.2 - Communication to control the drycooler ................................................................................................................................ 5816.3 - Configuration of the fans control ........................................................................................................................................... 5816.4 - Water valves ..........................................................................................................................................................................5816.5 - System installations recommandation ................................................................................................................................... 5817 - START-UP..................................................................................................................................................................................5917.1 - Preliminary checks ................................................................................................................................................................5917.2 - Actual start-up .......................................................................................................................................................................5917.3 - Operation of two units in master/slave mode (option 58) ...................................................................................................... 5917.4 - Parallel or serial connection of two units ............................................................................................................................... 59CONTENTS