Data Sheet for Product

2
Siemens
A6V12071353_en--_b
Smart Infrastructure
2021-12-15
Use
Room temperature control via connected VRF system
Typical applications:
● Residential homes and apartments
● Offices & hotels
For the VRF HMI, the unit interfaces with VRF systems via third-party gateway for:
● Setpoint adjustment: Maximum/minimum limitation
● Fan speed adjustment: Auto/manual speeds (max. 7 speeds)
● Operating mode selection: AUTO, HEAT, COOL, FAN and Dehumidification
● ECO mode: Energy saving
● Delay off timer (optional): Allow max. 23 hours operation before off
Functions
● Selection of VRF mode (P01)
– AUTO, HEAT, COOL, FAN and Dehumidification
● Operating mode selection via button or parameter (P02)
– ON, ECO and OFF
● Selection of temperature unit in °C or °F (P04)
● Calibration for built-in temperature sensor (P05)
● Display selection (P06)
a) Built-in sensor
b) VRF indoor unit
c) Setpoint
● Minimum and maximum limitation of room temperature setpoint (P09, P10)
● Key lock function: Lock and unlock (P14)
Advanced functions
Optional: Enable / disable via parameters:
● Operating mode after power resumed: Previous mode, ON or OFF (P27)
● Enable delay-off timer: up to 23 hours (P28)
● Setting max. fan speed for VRF indoor unit (P53)
● Reload factory settings for commissioning and control parameters (P71)
● Modbus settings (P81, P82, P83)
● Enable Chinese text display (P98)
Mechanical design
The VRF HMI unit consists of three parts:
● LCD display
● Decoration frame
● Mounting plate for fitting onto a square conduit box with 60.3 mm fixing centers.