BAC ICE CHILLER TSU-C-D, Operating And Maintenance Instructions Manual

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GLYCOL
Every six months, or at the seasonal start-up, draw a sample of the glycol solution from the system and check the
concentration using a refractometer. If necessary, adjust the concentration using the proper type of industrially
inhibited glycol.
REFRIGERANT
Every 6 months, or as necessary, purge refrigerant oil from the coil, using the purge connections provided (see
certified print).
AIR DISTRIBUTION PIPING
Inspect the PVC air distribution piping for cracks or other signs of damage at initial and seasonal start-up.
Cleaning Procedures
MECHANICAL CLEANING
Keeping your thermal storage equipment clean will maintain its efficiency and help to prevent uncontrolled
bacteriological growth. The recommended annually cleaning procedures are described below:
1. Remove the insulated tank covers.
2. Drain the tank.
3. Clean any debris from tank.
4. Flush the tank with clean water and drain to remove accumulated dirt.
5. Close drain. (For seasonal shut-down leave the drain connection open to allow any water that might enter the
tank to drain out.)
6. Fill the tank with clean water (see operating instructions)
7. Properly position the insulated tank covers to minimize dirt and debris accumulation within the tank.
Caution
CLEAN THE AIR FILTER ONCE A MONTH.
DISINFECTION
Disinfection of your cooling system may be needed in case of high concentration of aerobic bacteria and/or
Legionella. Disinfection is also recommended for evaporative cooling systems with known or suspected high
bacteriological levels, prior to a cleaning procedure.
Some local or national guidance also recommends disinfection prior to initial start up, after a prolonged shut down,
after routine cleaning operations or when significant alterations have been made to the cooling system.
Disinfection must be carried out in accordance with a proper procedure and take into account the safety of the
cleaning and disinfection staff.
Typically disinfection is achieved using a sodium hyperchloride solution to maintain a residual value of 5 - 15 mg/l
of free chlorine and circulate this around the system for up to 6 hours. Higher chlorine levels for a shorter period are
possible, but require a higher level of corrosion protection than galvanized steel only. Consult your BAC Balticare
representative for further information.
Excessive levels of chlorine must be avoided as this quickly can lead to corrosion and damage to your system.
W W W . B A L T I M O R E A I R C O I L . E U
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6 Maintenance Procedure
6 Maintenance Procedure