© Honeywell LT-MS4IOG Rev. 04 | Revised October 2015
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INSTALLATION & OPERATIONS GUIDE | MICROSET 4
Custom Codes Mode
To start Custom Codes mode
1. Enter Service mode.
2. Press the C
USTOM CODES button on the screen.
To adjust settings for variables in Custom Codes mode
1. Press the
LEFT/RIGHT navigation arrow until the variable you want to adjust appears.
2. Press the
UP/DOWN arrow on the screen to adjust the setting.
Custom Codes for binary points are shown with the value of
0 = Inactive or 1 = Active.
3. Press the
LEFT/RIGHT navigation arrow to accept your setting and scroll to a different
variable. Up to 26 different points may be defined with custom codes in the DDC Header.
Each may be designated as writable/read-only, decimal format (xx.x) or not (xxx), and
positive-only/can go negative.
To exit Custom Codes mode
• Press the
LEFT and RIGHT navigation arrows simultaneously.
• After 45 minutes of inactivity, Custom Codes mode will exit automatically.
Settings Mode
Settings mode enables technicians to adjust specific settings that are stored in the flash memory of the
Microset 4. Navigate and adjust settings in the same manner as in Field Service mode.
Available settings are:
• Lights (enable/disable)
• Windows (enable/disable)
• Offset (adjust to ±2 °F). Offset is a setting in the Microset 4 that allows an optional temperature bias
adjustment to compensate for a difference between the Microset’s temperature measurement and
other room thermometers. It allows a service technician to set any value between -2.0 and +2.0 °F,
with 0.1 degree resolution, to be added to the actual room temperature measured by the Microset.
The factory default setting for temperature bias adjustment is 0.0 °F.
• ARV (setpoint/AV-101). This allows a service technician to specify what temperature value is
shown in Across the Room View: either the room setpoint temperature (AV-90) or the actual room
temperature (AV-101). The factory default is setpoint.
To start Settings mode
1. Enter Service mode.
2. Press the S
ETTINGS button on the screen. Settings Menu is displayed.
To adjust values for variables in Settings mode
1. Press the button for the variable you want to adjust.
2. Press the
UP/DOWN arrow on the screen to adjust a numeric setting or enable/disable an on/
off setting.
3. Press the
LEFT/RIGHT navigation arrow to accept your setting and return to the Settings
Menu.
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