46
4.2
Commissioning (
OEM Circulating
and
OEM Direct Feed
)
The commissioning of the
HE2
humidifier requires appropriately trained technical personnel. It is strongly
recommended that a service technician of your Condair distributor commissions your system.
Please pay attention to local regulations regarding working at heights and electrical work. Part of this commis-
sioning process is a disinfection of water tank and matrix. Please read this document in full before commenc-
ing any work.
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” dis-
ease, which can be fatal.
Complete the following checklist before commencing commissioning:
1. Switch off AHU.
2. 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. Feed water Installation. Please refer to the Water Guide in this manual.
Ensure the water system in
the building has been subject to a Risk Assessment. The
HE2
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 microbes (such as the
HSE ACoP L8, The control of Legionella microbes in water systems). The use of mains water fed tanks
and reservoirs is only permitted as part of a managed water treatment system. Check that the Evaporative
Module has a feed water supply in excess of 2 bar (29 psi) connected to the supplied approved filling hose.
Ensure that any hygiene options have been correctly installed. Check all joints and fittings for leaks.
4. Drain installation.
Check that the drain on the 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 relevant section of the manual. Check all joints and fittings. Ensure that the drain connection includes
an air gap.
5. Distribution Pipework.
Check all water distribution pipework between the pump assembly and the distri-
bution headers are securely fitted.
6. Electrical Power Supply.
Check that a 230Vac / 5A (or 110Vac / 10A power supply in the US) is con-
nected to the system pump. Check that the system is installed in accordance with the local regulations.
7. Module Water Tank.
Check that the Evaporative Module water tank is free of any dirt and debris, and is
clean.
8. 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.
9. Pressure test.
Turn on water supply and check for leaks.
10. Health and Safety.
Take a water sample to ensure that supply meets the requirements specified in the
water quality guide. The sample should be tested using a dip slide to indicate the total number of coliform-
ing 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 microbes and/or fungi involved are themselves not considered to be
harmful. If you are unsure of the quality of your water please consult
your Condair distributor for advice.
