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Installation Recommendations
Improper installation, adjustment, alteration, ser vice or maintenance can
cause property damage, personal injury or loss of life.
Installation and service must be performed by a li censed professional HVAC
installer (or equivalent) or a service agency.
Before beginning installation, note the type of equipment, number of stages,
and any accessories being installed.
Do
• Read this entire document, noting which procedures pertain to your specific
equipment and system requirements.
• Make sure that all wiring conforms to local and national building and electrical
codes and ordinances.
Do Not
• Install on voltages higher than 30VAC.
• Short (jumper) across terminals on the gas valve or at the system controls
to test installation. This will damage the thermostat and void the warranty.
• Exceed 300 feet (91 meters) run when using 18AWG or 22AWG
thermostat wire or larger (see "Table 5. Terminal Designations and Wiring
Recommendations" on page 5 for further details.
• Allow power load from any thermostat connection to be more than 1 AMP
Smart Hub Installation
IMPORTANT
Do not install smart hub in location were direct exposure to condensation or
dripping water is possible.
DO NOT install smart hub on indoor unit.
1. Things to consider when installing the smart hub:
•
Install near the indoor unit such that there is a direct path to the
approximate location of the home Wi-Fi access point (the signal is not
blocked by the indoor unit or duct work, for example).
•
Can be attached to a vertical surface such as a wall stud or roof truss
web, or to a horizontal surface such as a floor or ceiling joist, or a roof
rafter.
WARNING
•
Smart hub antenna should be positioned such that it is roughly vertical,
no matter the orientation of the smart hub, itself.
•
Do not install the smart hub on the indoor unit, duct work, or other
equipment that could induce vibration in the smart hub
•
Do not install the smart hub on or near large metal objects. This could
adversely affect the range and directional coverage of the smart hub
Wi-Fi signal.
•
If the smart hub MUST be installed on a metal object, orientate the
antenna perpendicular to the metal surface.
•
In all cases, the smart hub antenna orientation may need to be adjusted
to obtain best Wi-Fi results.
2. Use the procedure outlined in "Figure 14. Smart Hub Installation" on page
14 to install the smart hub controller.
USE SMART HUB AS TEMPLATE TO MARK DESIRED MOUNTING
LOCATIONS ON WALL OR STUD.
A
CAUTION: DO NOT OVERTIGHTEN LOWER MOUNTING SCREW, MAY
DAMAGE SMART HUB.
THROUGH-HOLE
R
i+
I-
C
ACC1
ACC2
F
R
O
1/4"
C
STRIP 1/4" INSULATION FROM
END OF EACH CONTROL WIRE
Figure 14. Smart Hub Installation
14
KEYHOLE
COMMBUS
-
+
A
B
N
T
R
E
A
R
SECURE SMART-HUB TO
B
WALL WITH
FIELD-PROVIDED
FASTENERS
ACC1
ACC2
R
i+
I-
C
TERMINALS
(screw type)
MAKE CONNECTIONS TO SMART HUB
D
SCREW TERMINALS USING WIRING
DIAGRAMS PROVIDED
COMMBUS
-
+
A
B
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