14
11.3.
Center Push Button Functions
The Central Hub center button switch has one primary function. The central hub
can be rebooted by pressing and holding the center button for five seconds to
reboot.
The center button has an LED associated with it that indicates the status of the
Central Hub commissioning state (see “Table 2. LED Status Indicators”).
11.4. LED Status Indicators
Table 2. LED Status Indicators
Central Hub
ICON
Description
The center push button LED ring indicates the following:
• Sold Blue - System is operating normally.
• Solid Green - Wi-Fi network in use.
Indicates the status of the internal Wi-Fi module and whether or not the
Central Hub can connect to the local business network.
• Flashing Red - Wi-Fi initialization error.
•
Solid Amber - Business Wi-Fi network not active.
• Solid Green - Connected to business Wi-Fi network (default).
Indicates the status of the thermostat Mag-Mount and Local Display and
whether or not the Central Hub can communicate with the Local Display.
• Flashing Red - System connection failure.
• Sold Green - System connected and operational (default).
Indicates the status of the HVAC equipment in the business that is controlled
by the Central Hub, and wither or not the Central Hub can communicate with
it.
• Flashing Red - No HVAC equipment is connected.
• Solid Green - HVAC equipment connected and RS-BUS is functional
(default).
Indicates there is a critical alert condition present.
• Flashing Red - Critical Alert.
•
Solid Green - Unit is operating normally and no critical alerts active.
11.5. Terminals
Table 3. Terminal and other Connection Designations
Terminal Designation
Description
Terminal
Color
R
24VAC input
Red
S+
S-BUS
Yellow
S-
S-BUS
Green
C
24VAC return
Black
+
12VDC output
Blue
-
12VDC return
Black
A
Communications bus A (RS-485)
Yellow
B
Communications bus B (RS-485)
Green
USB port
For manual firmware updates
Not applicable
M-BUS Terminals
- ( M-BUS low - data line 2)
Black
G - Ground
Black
+ (M-BUS high - data line 1)
Black
Ethernet Jack
100BaseT, RJ-45, 802.3
Black
