Nhsc / nhdi electric steam humidifier – Nortec NHDI User Manual
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Humidifier Mandatory Start-up Checklist (p. 2 of 2)
Unit Serial #: _ _ _ _ _ _ _ _
# of humidifiers: _____
Tag: _____________
Unit type: NHSC / NHDI
Voltage: _____V/___ph
Steam output: ____lbs./hr
Customer/Job: _______________ Address: _________________________________________________
Start-up by: _____________
Date of start-up: ___/___/___
______________________________________________________________________________________
1. PRELIMINARY:
- Pre-start-up checklist completed? yes
r
no
r
If no, return to Pre-Start-up Checklist before going on with start-up procedure.
2.START-UP PROCEDURE:
The prerequisites for getting power and water into the steam cylinder are as follows:
- check that main breaker is on and power is at the unit
- check that main water shut-off valve is open
- on/off/drain switch must be switched on
- control circuit 8-10 must be made
- modulation humidistat, if present, must be calling
- door interlock switch must be made (interlock switch can be pulled out to operate unit)
The unit will undergo a System Test to ensure integrity of all the components. If the test is successful, the unit
will fill and the float test will be carried out. If everything ok, the green light will come on and the display will
show NHDI or NHSC Ready.
3. OPERATIONAL CHECK:
-Switch on the humidification by raising the humidity set point on the humidistat/controller.
-Switch off the humidification by lowering the humidity set point on the humidistat/controller.
-Check for correct functioning of the external monitoring safeties such as air proving and high limit.
-When check complete: Set the desired humidity level.
Remarks:__________________________________________________________________________________
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__________________________________________________________________________________________
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__________________________________________________________________________________________.
NHSC / NHDI Electric Steam Humidifier