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Johnson Controls Ducted Systems
SECTION I: GENERAL
The Hx™3 Touch Screen Thermostat is designed to control conven-
tional and communicating HVAC systems. Use applicable Johnson Con-
trols Ducted Systems communicating equipment as follows:
• Variable speed modulating furnace
• Two-stage variable speed ECM furnace
• Variable speed air handler
• Premium 19 and 21 SEER air conditioners
• Premium 19 and 20 SEER heat pumps
• Variable capacity systems
While the communicating system has been designed for easy installa-
tion, this document provides a more detailed explanation of the installa-
tion process for installers.
For communicating zoning applications,
please refer to the literature kit that is included with the Zone Module
(S1-ZMC401A).
To use the complete feature set available, you must connect the Hx™3
Touch Screen Thermostat to Wi-Fi.
For ease of installation and to ensure the thermostat has the latest soft-
ware updates, make sure that Wi-Fi access is available (through the
homeowner’s Wi-Fi network or a mobile hotspot).
SECTION II: SAFETY CONSIDERATIONS
This is a safety alert symbol. When you see this symbol on labels
or in manuals, be alert to the potential for personal injury and equipment
damage.
Understand and pay particular attention to the signal words
DANGER
,
WARNING
, and
CAUTION
.
DANGER
indicates an
imminently
hazardous situation, which, if not
avoided,
will result in death or serious injury.
WARNING
indicates a
potentially
hazardous situation, which, if not
avoided,
could result in death or serious injury
.
CAUTION
indicates a potentially hazardous situation, which, if not
avoided
may result in minor or moderate injury
. It is also used to alert
against unsafe practices and hazards involving only property damage.
