Nortec NH-EL Series - Manual (Page 61)

Maintenance and Servicing | 58
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Slave 1 (200 lb/hr) - Zero Out = 11%, Full Out = 11+(200/(50+200+200))= 55%
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Slave 2 (200 lb/hr) - Zero Out = 55%, Full Out = 55+(200/(50+200+200))=99%
Note: To obtain the best turn down ratio possible the smallest unit should be configured to
come on first.
When more than one humidifier is required to satisfy the demand of a single zone the units are
all operated from a single control signal. By using the Multi Mode function of the NH-EL the
control signal only needs to be connected to one master humidifier. All other humidifiers
serving the zone must then be connected using the linkup terminal (J10) on the NH-EL control
board (See Multi Mode Wiring on page 34). Additionally, all slave units must have a jumper on
the security loop.
Multi Mode
Use Multi Mode to configure the humidifier to operate as one humidifier of
a group controlled by a single control signal / transducer signal. (Default =
Standalone)
Full Out
System demand at which the humidifier should output its full capacity
(Default = 100%).
Zero Out
System demand at which the humidifier should shut off (Default = 0%)
General Submenu
The General menu allows you to set the date, time, language, units and general display settings.
Date
Sets the date. Enter MM/DD/YYYY. Use arrows to move to digit you wish
to change or press “Delete” to clear entry completely. Press checkmark to
save changes.
Time
Sets the time of day. Use arrows to move to digit you wish to change.
Press “a”(2) for am, “p”(7) for pm. Press checkmark to save changes.
Language
Select the desired language and press the checkmark to save changes.
Unit
Select the desired units and press the checkmark to save changes.
Contrast
Increase/Decrease screen contrast. Press checkmark to save changes.
(Default = 8)
Brightness
Increase/Decrease screen brightness. Press the checkmark to save
changes. (Default = 52)
Date / Clock Format
Select the desired format and press the checkmark to save changes.
NOTE: The Full Out and Zero Out selections are only displayed if Multi Mode
is set to either Master or Slave. It is not displayed in Standalone mode units