Neptronic SKS4 Startup Procedure

Start-up Procedure
Initial verification and start-up must be carried out by suitably qualified personnel.
It is strictly recommended to follow this start-up procedure in order to avoid any anomaly resulting
from inaccurate installation of the components.

Initial Verification

1. Ensure that the humidifier cabinet is installed in a location in which

Clearance

2. Verify that the power supply (voltage) conforms to the appliance
Electrical
Supply 3. Confirm that 24Vac is present between terminals TB4 1&2 on the
4. Ensure that water is supplied to the humidifier and that a shutoff
5. With the water shutoff valve turned on, check that the drain

Water Supply

6. Confirm that the drain piping is properly connected with a pitch of at
7. Verify that the steam distributors are properly installed into the

Clean Steam

8. Verify that the flexible steam hoses and rigid steam supply pipes
9. Confirm that raw steam or HTHW is supplied to the humidifier and
10. Confirm that the shut-off valve located outside the humidifier is
Raw Steam or
HTHW Supply
11. When using raw steam supply, verify the type and size of the
12. Ensure that the control valve is properly connected to the output
13. Ensure that the Airflow switch is properly installed and connected to
14. Ensure that the High limit duct humidistat is properly installed and

Controls

15. Ensure that the Interlock is properly connected to the printed circuit
16. If a room or duct humidistat is used, verify that it is correctly
17. Turn the power on using the disconnect switch or circuit breaker.
18. Confirm the control set-up of the humidifier and verify that the
SKS4-CE Start-up Check List - 180717
the humidifier can be serviced correctly.
name plate on the side of the humidifier.
printed circuit board.
valve is placed outside the humidifier.
connections are connected to the main drain line with sufficient
diameter. Ensure that there are no apparent leaks.
least 6.5mm per 300mm.
ventilation duct.
are shorter than 5 m in total, are properly sloped and have
condensation "S" traps wherever required.
that the supply line is hot upstream the control valve. The pressure
must not exceed 15 PSI (103.4 kPa) for SLP models.
closed. With the shut-off valve turned on, check for leaks or hissing
sounds.
condensate return steam trap. The steam trap must be of float type
and of sufficient dimension, according to the capacity.
control signal of the humidifier.
the printed circuit board. If an Airflow switch is not used, verify that
a jumper is connected between terminals TB3 1&2.
connected to the printed circuit board. Verify that the setpoint is
properly adjusted. If a High limit duct humidistat is not used, verify
that a jumper is connected between terminals TB3 1&3.
board. If the Interlock is not used, verify that a jumper is connected
between terminals TB3 1&4.
installed and properly connected to the humidifier. Verify that the
setpoints are properly adjusted.
setpoints are properly adjusted.
SKS4 Steam to Steam Humidifier
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Start-up Check List
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