Herrmidifier Herrmidicool Technical Guide - Manual (Page 12)

Select the Control Section
Herrmidifier makes available two standard control
schemes one using electronic controls and sensors, and
the other using direct digital interface that accepts a
demand signal from an existing controller or energy
management system and operates the Herrmidicool
accordingly. All Control Sections require a 110/1/60
volt power supply.
Options, such as special blow-down control sections,
delayed on or off, enthalpy compensation, and freeze
and A/C interlocks are available on request. These
options are useful for rooftop air handlers such as shown
in Fig. 5. Other options are available on a customized
basis. All optional controls should be specified as to
who will supply them. (See suggested specifications at
back of this manual.)
Place the Order
At this stage, Herrmidifier representatives will review
your application and plans to insure that the
Herrmidicool system is in fact the best possible
humidifier for your application, and that the system as
The typical control scheme involves the use of “double
input modulation” which is a technique using both a high
limit duct sensor and a control sensor (placed either in
the room or return duct), played off against each other to
produce the maximum use of the system without “short
cycling”. This technique takes maximum advantage of
the potential evaporative cooling effect of the
Herrmidicool system and insures accuracy for critical
applications.
For special applications or interface problems, contact your local Herrmidifier representative or contact Herrmidifier
directly. Special applications are our specialty.
designed will work to the maximum benefit for you. The
engineering after the sale is no less important than the
engineering before the sale.
HERRMIDICOOL Technical Manual