Operation; Led Status Lights; Selecting A Relative Humidity Setpoint - Honeywell HM700A1000 Installation Instructions Manual
Electrode steam humidifier
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- Quick start manual (8 pages) ,
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HM700A1000
OPERATION
LED Status Lights
The HM700 user interface includes 2 LEDs that provide
information about the humidifier status.
Fig. 19. LED status indicator lights.
Yellow and Green LED Flashing
Indicates there is no request for humidity.
Yellow LED Flashing
Fault detected, humidifier has stopped operating. Count
the number of flashes and see Table 8 for info.
Green LED Flashing
Indicates the humidifier is powered, but there is not a
request for humidity. Security loop (1-2) is open.
Yellow LED On
Indicates that water level is high.
When the yellow LED is steady on (not flashing) it indi-
cates that the high water sensor has interrupted filling of
33-00118—01
the cylinder. The LED is on for information only and
unless it persists for an extended period of time, it does
not require any action.
Green LED On
Indicates steam is being produced.
Selecting a Relative Humidity
Setpoint
The optimum humidity setpoint depends on the reasons that a
space is being humidified. The "ASHRAE Handbook HVAC
Applications" recommends specific design relative humidity for
specific applications.
Health and Comfort – The benefit of humidity is most
pronounced for health and comfort in the 40-60% range. A
humidity setting of 45-50% is recommended for this purpose
to prevent over humidifying.
Temperature Setback – In cold climates it is often necessary
to reduce the humidity level in a conditioned environment to
prevent build-up of condensation on the inside of exterior
walls, windows, and trim. It is highly recommended that the
humidity setback function of the HumidiPRO control be used
under these conditions to prevent damage from condensation.
The digital control with an outdoor temperature sensor
installed will automatically setback the humidity setpoint to
correspond with outdoor temperature.
14
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