Standalone Wall-Mount Controller
Specification and Installation Instructions
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Humidity Settings
The Humidity Settings appear only for the following conditions: if you have selected HU at Step 80, "UI1 Signal Type"
or Step 84, "UI2 Signal Type" or for the models with the built-in humidity sensor, unless otherwise specified.
"Extern Humidty Sensor Offset"
Offset:
Range:
Increment:
± 5%
10% RH to 90% RH
0.1% RH
This option appears only if you have selected
HU
at Step 80, "UI1 Signal Type" or Step 84, "UI2 Signal Type". The display
shows the relative humidity percentage read by the external humidity sensor. Adjust the offset by comparing it with a known
value humidistat. If the sensor is not connected or short circuited, unit displays the sensor's limits. The humidify
symbol is
also displayed.
“Intern Humidity Sensor Offset”
Offset:
Range:
Increment:
± 5%
10% RH to 90% RH
0.1% RH
This option appears only for models with the humidity sensor. Compare the displayed humidity percentage reading with a
known value from a humidistat. This is useful for the humidistats installed in areas where the humidity reading is slightly
different tha
n the room’s actual humidity. For example, a humidistat placed right under the air diffuser. The humidify symbol
is also displayed.
"Humidty Control Mode"
Default:
Range:
OFF
OFF, Auto (Automatic humidify and dehumidify), dEHU (dehumidify only), Hu (humidify only)
•
OFF (Disabled). If selected, the controller disables all humidify and dehumidify functions.
•
AuTo (Automatic humidify and dehumidfy). If selected, the ramp of atleast one analog or binary must be set to Hu
(humidify) and another output must be set to COOl (cooling).
•
dEHU (Dehumidify only). If selected, the ramp of at least one analog or binary output must be set to COOl (cooling).
•
Hu (Humidify only). If selected, the ramp of at least one analog or binary output must be set to Hu (humidify).
If you select
OFF
, Steps 126 to 135 will not be available.
If you select
Hu
or
deHU
, Step 126
"Humidty User Setpnt Minimum" will be available.
“Display Humidity”
Default:
Range:
No
No, Yes
This option appears only if you have selected
OFF
at Step 123, "Humidty Control Mode". Select whether to display humidity
value or not. If set to No, the controller will not show the humidity value and if set to Yes, it will display the humidity value.
“Humidity Control Source”
Default:
Range:
Erh
Erh, irh
This option appears only for models with the built-in humidity sensor, while also having selected
HU
at Step 80, "UI1 Signal
Type" or Step 84, "UI2 Signal Type". Select the source for humidity control.
•
Irh. If selected, the controller will be controlled by its internal humidity sensor.
•
Erh. If selected, the controller will be controlled by an external humidity sensor.
"Humidty User Setpnt Minimum"
Default:
Range:
Increment:
30% RH
10% RH to 90% RH
0.5% RH
This option appears only if you have selected
AuTo
,
Hu
or
deHU
at Step 123, "Humidty Control Mode". In Operation Mode,
you cannot decrease the setpoint to less than the value set as the minimum humidity setpoint. The minimum value is restricted
by the maximum value set at Step 127, "Humidty User Setpnt Maximum". In other words, the value that is set as the minimum
cannot be greater than the maximum value.
