4421 Tradition Trail ● Plano, Texas 75093 ● 972-964-2700 ● 800-836-7472
SP-ENG-211-D48-02 Rev 2.3 10 |
P a g e
Options
The DI-01A Series Air Conditioners may be ordered with the following options. Review the list below
for the specifications and functions of the option(s) that apply to your unit.
Dry Contact
This option provides an early warning capability to your enclosure to aid in the protection of your
expensive equipment. The Dry Contact is programmed with an individual dry contact set point to
monitor the enclosure temperature limit that you require. When the enclosure temperature has
exceeded the maximum limit, the Form C gold plated contact will activate to notify you that there is a
problem in achieving your cooling set point.
Default Settings:
105°F Dry Contact High Temperature Alarm Set Point
2°F Recovery Differential
3min Temperature Alarm Delay
At the default settings the Dry Contact initial conditions are normally open and/or normally closed.
When the unit is powered on and the temperature exceeds 105°F for a period longer than 3 minutes
the Dry Contact will activate. At this time the normally open contact will close and the normally closed
contact will open. This state will remain until the temperature has decreased to 103°F.
Note:
The dry contact is not a power status indicator, rather it is a high temperature alarm alerting you
that the unit is unable to meet the cooling set point.
Refer to the Digital Temperature Controller Programming section for details on changing these
parameters.
Celsius Programming
Celsius Programming option allows the user to control the Delta-T Air Conditioner in SI units. This
feature can be programmed into the digital temperature controller at time of manufacturing.
