Cleaning Procedures - BAC VCL Operating And Maintenance Instructions Manual

Evaporative condenser

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ADJUSTABLE MOTOR BASE

The motor base adjusting screw (see figure below) should be coated every six months using a good quality

corrosion inhibiting grease, such as one of those recommended for lubricating the fan shaft bearings.

Adjustable Motor Base

1. Motor Base Slide

2. Adjustment Rod

3. Lock Nut

4. Adjusting Nut

Cleaning Procedures

MECHANICAL CLEANING

Keeping your evaporative cooling equipment (and the associated system) clean will maintain its efficiency and

help to prevent uncontrolled bacteriological growth. The recommended cleaning procedures are described below:

1. Disconnect fan and pump motor(s) and shut off make-up supply.

2. Remove screens, eliminators, access panels and doors and drain system. Do not remove sump strainer.

3. Clean debris from exterior and fan(s) with soft brush, if necessary use water and soap.

4. Clean interior with (soap) water and soft brush, if necessary use high pressure water jet.

5. Remove any debris from water distribution system and clean any nozzles if clogged. If necessary nozzle and

grommet may be removed for cleaning.

6. Remove debris from heat transfer section (coil).

7. Flush with clean water and drain to remove accumulated dirt.

8. Remove, clean and replace sump strainer(s).

9. Clean debris from screens and eliminators with water jet and install.

10. Remove debris from access doors and panels with soft brush and (soap) water and install.

11. Close drain and open make-up supply. Fill system to overflow level with clean water.

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.

5 Maintenance Procedure

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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