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Beta Draft Confidential
3-44
Professional Series Network Thermostat Configuration Guide, Release 3.0
Part No. 600-01000-200, Rev. 2
CHAPTER 3: Configuring the Thermostat Using the TMI
Threshold
(NT150e/h and NT160e/h only)
Depending on the action selected by the
External Relay Trigger
(NT150e/h and NT160e/h only) (page 3-43)
, this setting
represents the limits of either temperature or relative humidity as
required by the External Relay Trigger action above. This setting
is measured in either % relative humidity or degrees
Fahrenheit/Celsius.
10% to 90% RH
– For Above humidity limits. When the
relative humidity rises above this trigger point, the external
relay is activated. When the relative humidity falls 5% below
the trigger point, the relay is deactivated.
10% to 90% RH
– For Below humidity limits. When the
relative humidity falls below the trigger point, the external
relay is activated. When the relative humidity rises 5%
above the trigger point, the relay is deactivated.
-30
°
F(-34
°
C) to 200
°
F(95
°
C)
– For Above temperature
limits. When the average temperature rises above this trigger
point, the External Relay is activated. When the temperature
falls below trigger setpoint minus the setpoint differential,
the relay is deactivated.
-30
°
F(-34
°
C) to 200
°
F(95
°
C)
– For Below temperature
limits. When the average temperature falls below the trigger
point, the External Relay is activated. When the temperature
rises above the trigger setpoint plus the setpoint differential,
the relay is deactivated.
Activate Polarity
(NT150e/h and NT160e/h only)
Select Open or Closed for the active state of the External Relay.
For example, when the relay is set to a polarity of
Closed
, the
relay closes and completes the external circuit when activated.
Open
– Contacts are open and the external circuit is
unswitched.
Closed
– Contacts are closed and the external circuit is
completed.
Activate HVAC Fan
(NT150e/h and NT160e/h only)
Select
Enable
to activate the HVAC fan when the External Relay
is activated. The HVAC fan turns off when the External Relay is
deactivated. This feature is best applied when humidification or
de/humidification is performed by additional equipment outside
the HVAC system but the same duct work is used.
Enable
– Allow airflow in the duct work during External
Relay activation.
Disable
– Disallow airflow in the duct work during External
Relay activation.
Table 3-6 Advanced Settings Fields - HVAC Fuel Burner Field Descriptions
Field
Description