SPX Cooling Technologies 800 user manual Routine Starting Procedure

Models: 800

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Routine Starting Procedure

Routine Starting Procedure

Caution

After periods of routine shutdown, the following restarting procedure should be followed:

Start the circulating water pump(s). Increase the flow of circulating water gradually to design water rate to avoid surges or water hammer which could damage the distribution piping.

Circulating cold water over a tower in freezing weather will cause ice to form, which may cause damage to the fill system. Water should be bypassed directly to the cold water basin until the heat load causes its temperature to rise above 70°F (21°C), at which time it may be directed over the tower. Also, towers must not be operated with reduced water rate and/or no heat load during freezing weather. If a bypass is used, do not modulate.

Start the fan(s). On multi-cell towers, only as many fans should be started as are needed to produce the desired cold water temperature. If the tower is equipped with two-speed motors, fans may be progressively started at half speed, increasing to full speed as necessary to maintain the desired cold water temperature. (See Temperature Control and Energy Management on pages 13 and 14.)



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SPX Cooling Technologies 800 user manual Routine Starting Procedure