11
Introduction
Before starting the “ES” PURE Humidifier Co.
Electric Humidifier, check the following
installation procedures:
1. MOUNTING – Verify that the humidifier
evaporating chamber is securely supported and
that the evaporating chamber is level in both
directions.
2. INJECTION TUBE - Verify that the humidifier
injection tube is mounted within the duct with the
proper pitch back to the humidifier (2”/5 cm per
foot/31 cm). NOTE: If the humidifier evaporating
chamber or the flexible hose (optional) is mounted
higher than the injection tube, a drain “Tee” is
required to drain the condensate out of the
injection tube and steam line.
3. ELECTRICAL - Verify that all wiring connections
have been connected in accordance with the
wiring diagram. CAUTION: Live power may
exist in the control cabinet. Turn off the main
power at the disconnect switch before
verifying the electrical connections!
4. PIPING - Verify that all piping connections have
been completed as recommended and that water
pressure is available to the humidifier.
Start Up Procedure
1. Make sure the manual drain valve lever (located
on the front of the drain valve) is in the automatic
position.
2. Turn the electric power “on” to the humidifier. The
LCD display on the INTAC
®
controller should
illuminate “Normal Operation”.
3. Set menu 101 “RH Setpoint” to the lowest setting
(no call for humidity). If 100 menu shows “No
Parameters Available” the procedure must be
done through the Building Management System.
4. Open the water supply on/off control valve (by
others) and allow the humidifier evaporating
chamber to fill to the proper level.
5. After the humidifier is full of water, menu 004 will
read “FULL”.
6. Verify the low water safety circuit by opening the
manual drain lever on the drain valve. As the
humidifier tank is draining, the "Fill" LED should
illuminate. The humidifier should drain to a level
where menu 004 reads “LOW”; this indicates
that the low water safety circuit is operational.
7. Close the drain valve and allow the humidifier to
fill to the proper level.
8. Make sure all the optional safety switches are
satisfied (airflow proving switch, high-limit
humidistat, etc.).
9. Turn menu 101 “RH Setpoint” up to a call for
humidity.
10. The heater(s) should energize on a call from the
humidistat.
11. Check operation of optional field-installed
safety switches (airflow proving switch, high- limit
humidistat, etc.) to make sure that they turn the
power off to the control circuit power. The
safety switches should shut-off the humidifier
heaters whenever one or more of the
optional safety switches create an “open circuit”.
12. Check heater amperage draw by testing and
recording voltage and amperage in each phase.
Readings should match the factory heater
nameplate.
13. Inspect installation for leaks by operating
humidifier. Any leaks should be sealed.
Start-Up Procedure
Initials Initials
Signature:__________________________ Date:_________
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