SKGE Gas Fired Humidifier
SKGE Start-up check list 180223
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Initial Verification
Initial verification and start-up (commissioning) must be carried out by suitable
qualified personnel.
Clearance
1. Ensure that cabinet of the humidifier is installed in a location where the
humidifier can be serviced correctly.
Electrical
2. Check that the power supply (voltage) conforms to the appliance name plate
on the humidifier side.
3. Confirm that 24Vac is present between tab 1&2 of the control terminal,
located on the control connection PCB. Remove the front top cover to get to
this PCB.
Water
4. Ensure that water is supplied to the humidifier. A shut-off and a non-return
valve must be outside the humidifier.
Once the water shut-off valve is turned ON, ensure that there are no apparent
leaks.
5. Confirm that drain piping is properly connected with a pitch of at least 6.5mm
per 300mm horizontal run.
Steam
6. Check that steam distributors are properly installed into the ventilation duct.
7. Verify that the flexible steam hoses and rigid steam supply pipes are shorter
in total length than 5 meters, properly sloped and have condensation
P traps wherever required.
Gas
8. Verify that a proper regulator and gas test point have been installed on the
gas line to the humidifier.
9. Confirm that gas is supplied to the humidifier and that the shut-off valve
located outside the humidifier is closed.
Once the shut-off valve is turned ON, check for leaks, gas, smell or hissing
sound.
Flue Gases
Venting
10. Verify the flue gases venting as follow:
a) A tee is installed with a drain trap for the flue gases condensate.
b) Check that all connections are air tight.
c) The total length of the vent equivalent is not longer than 30 meters.
d) An approved venting system is used.
Note:
Aluminum B vent is not acceptable.
Controls
11. Ensure that a high limit duct humidistat is installed, properly connected to the
humidifier and that the setpoint is properly adjusted.
12. Verify that a room humidistat or return air duct humidistat is installed, properly
connected to the humidifier and that the setpoint is properly adjusted
13. Turn the power ON at the disconnect switch. The LCD screen located on
control panel must display the model number and serial number of the
humidifier
, along with the message “Unit is off’’.
14. Confirm the control set-up of the humidifier (display #200). The humidifier is
factory set with EXTERNAL control set-up, which means that the humidity
demand is controlled by the room or duct humidistat.
15. Ensure that the type of signal (0-10Vdc, 2-10Vdc or 4-20mA) of the humidistat
corresponds to the type set in the humidifier control set-up menu (display #
201).
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