Neptronic SK VAP, Installation & Operation Instruction

23

Neptronic

®

Evaporative Humidification / Cooling System

www.neptronic.com

Pre-Commissioning Checklist

Warning!  This humidifier must be installed, operated and maintained in accordance with this manual.  

Failure to do so could result in contamination that might cause Legionnaires’ disease, which can be fatal.

Complete the following Checklist before commencing commissioning.

1. Switch off AHU.

2. SK VAP Evaporative Module Installation.

Check that the Module has been installed level in all planes with secure

blankingplates to prevent air bypass. Check that there is sufficient access for evaporative matrix cassette removal during

maintenance. Ensure assembly is securely fixed, and that there is no visible damage. Check that the Module is installed

in a waterproof section.

3. SK VAP Control panel Installation.

Check that the SK VAP Control panel is mounted in a convenient dry location

and has been connected to the SK VAP Evaporative Module via the proper electrical cable. Check electrical 

connections with reference to the wiring diagram in the manual.

4. Feed water Installation.

Ensure the water system in the building has been subject to a Risk Assessment. The 

SK VAP system MUST be connected to a clean, potable mains water supply.  It is the responsibility of the user to 

ensure that the water system complies with local regulations and bylaws, particularly those for the control of Legionella 

bacteria.  The use of mains water fed tanks and reservoirs is only permitted as part of a managed water treatment 

system. Check that the SK VAP Evaporative Module has a feed water supply in excess of 29 psi (2 bar) connected to the

supplied filling hose. Ensure that the PureFlo Ag+ system is installed. Check all joints and fittings for leaks.

5. Drain installation.

Check that the drain on the SK VAP Evaporative Module is connected to the main building drain.

Ensure that this drain pipe-work is trapped to a suitable level for the applicable working duct pressure, refer to the rele-

vant section of the manual. Check all joints and fittings.

6. Distribution Pipework.

Check all water distribution pipework between the pump assembly and the distribution 

headers are securely fitted.

7. Electrical Power Supply.

Check that a 120Vac / 10A power supply is connected to the SK VAP Control panel. Check

that this power supply is isolated within 39” (1 m) of the SK VAP Control panel.

8. Optional Controls:

Check that appropriate controls connections have been made to the SK VAP Control panel. Refer

to the controls wiring section of the manual.

9. Module Water Tank.

Check that the SK VAP Evaporative Module water tank is free of any dirt and debris, 

and is clean.

10. Flush Water Supply:

Check that the water supply has been flushed to prevent water stagnation and to clear any flux

or foreign matter. This must be done carefully without creating splashing or aerosols. 

11. Pressure test:

Turn on water supply and check for leaks. 

12. Health and Safety. 

Take a water sample to ensure that supply meets the requirements below. The sample should be

tested using a dip slide to indicate the total number of coliforming units per ml (cfu/ml). Generally, levels of 1x10

3

cfu/ml

may be considered acceptable for this type of humidifier provided the species of bacteria and/or fungi involved are 

themselves not considered to be harmful.