User Interface - Nui; Introduction; Installation Recommendations - Carrier 80HMA-M00 Installation, Operation And Maintenance Instructions

2.1 Introduction

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also called in this document as 'NUI'.
A Master User Interface -NUI 0- is available on the unit and
the others are installed on the wall inside the comfort zones
as required - NUI 1 for zone 1 and NUI 2 for Zone 2 (2-Zone
Kit is required for two zones).
NUI is a low-voltage device for controlling the room comfort
and the general operation of the system. NUI has different
features including:
- Dedicated Heating / Cooling Setpoints per Zone
- Virtual Zone management *
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- Keypad lock
- Scheduler for all the weekdays with four periods
- Current Mode selection and visualisation

2.2 Installation Recommendations

2.2.1 Safety Consideration
Read and follow manufacturer instructions carefully. Follow
the local electrical regulations during installation.
2.2.2 Power
The NUI will be powered with 12V unregulated DC Voltage.
2.2.3 User Interface Location (for In-zone User Interface)
The user interface should be installed:
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inside partitioning wall
On a section of wall without pipes or duct works.
2.2.4 Mechanical Installation
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2. USER INTERFACE - NUI

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- Outdoor Air & Room Temperature
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- Backlight
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system
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system through the User Interface - NUI
Note: The user interface cover (lid) is available only in
the wall installation. In this case, ignore the programming
instructions "Open the lid...".
All the wiring must conform to the local and national
electrical regulations.
This power is supplied to the user interface by the unit to
which it is connected.
The user interface should NOT be installed:
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leading to the outside
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cause a false measurement of room temperature
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return-air registers
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or in an alcove.