Trane US Inc. CONT8241 ユーザーズマニュアル

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Installation Guide
page 4 
18-HD72D1-1 
4.  Installation
4.1  Location
The 824 Control is designed for installation in climate 
controlled living spaces. Place the unit in a central location 
with good circulation.
For proper temperature sensing, avoid mounting the Control 
where it will be exposed to heat radiated from lamps, sun 
light, fireplaces or any other radiant heat source.
Avoid locations close to windows, behind doors or alcoves 
with poor air circulation, adjoining outside walls, or doors 
that lead to the outside.
Select a location that prevents the Control from being 
directly exposed to air currents from supply registers or 
ceiling fans.
Mount the Control on a section of interior wall that does not 
contain hor or cold water pipes or duct work.
Important: The 824 Control utilizes a 4.5” color touch screen. 
This screen generates heat which is vented out the top of 
the Control utilizing natural convection. If an air source is 
directed at or from above, heat from the screen can be 
trapped within the Control body and can cause the indoor 
temperature to be biased. Refer to “Figure 1.  Placement of 
the 824” on page 4 
4.2  Network Connections
To take advantage of the full range of features on the 824 
Control, it should be connected to the Internet. This is 
possible using either a wireless or a wired connection.
Wireless Connections
If the 824 Control will be connected to the Internet using the 
built-in wireless feature, choose a mounting location that 
ensures adequate signal strength from the internet router.
Tips to Help Maximize Signal Strength:
 
— Do not mount the Control more than 30 feet from the 
wireless router
 
— There should be no more than three interior walls 
between the Control and the router.
 
— Do not mount the Control in areas where 
electromagnetic emissions from other devices, 
appliances or wiring can interfere with the Control’s 
communication. (i.e. wireless phones, security 
systems, wireless internet cameras).
 
— Do not mount the Control in recessed areas, 
near metal objects, or near structures. (i.e. doors, 
appliances, entertainment centers or shelving units).
 
— Do not mount the Control closer than 2 inches to any 
pipes, duct work, or other metal obstructions.
 
— Do not have metal obstructions, concrete or brick 
walls between the Control and the router it.
Wired Connections
The 824 Control may be connected to the Internet using its 
built-in RJ-45 connector. When using a wired connection, 
verify that a CAT 5 or better Ethernet cable with a male 
RJ-45 connector is present from the router to the Control.
4.3  Mounting
Follow these steps to mount the 824 Control to the wall.
1.  Turn OFF all power to heating and cooling equipment.
2.  If an existing thermostat is being replaced:
a.  Remove the existing thermostat from the wall.
b.  Record color and terminal marking of each wire.
c.  Disconnect the wires from the existing thermostat 
being careful not to allow them to fall back into 
the wall.
3.  Carefully pry the sub-base away from the 824 Control 
using a small flat-blade screwdriver. Note that the 
tight fit is normal and ensures that the Control is held 
securely to the sub-base when mounted on the wall.
4.  Route the thermostat wires through the opening on 
the sub-base.
5.  If using a wired Internet connection, route the Ethernet 
cable through the opening.
6.  Place the sub-base against the wall in the desired 
location and mark the wall through the mounting 
holes. If you are using a wired Internet connection, 
be sure to mark the cutout for the RJ-45 Holder (see 
“Figure 2. Mark the Mounting Holes”).
Incorrect
Placement
of the 824
Ceiling Fan
Natural heat
dissapation
from the 824
Touch Screen
Onboard
Thermistor
5 FEET
Optimum
Zone
2 FEET
Correct
Placement
of the 950
Correct
Placement
of the 824
Heat from the 824 screen may be 
trapped within the body of the Control 
by an external top-down airflow 
source, such as a ceiling fan.
The onboard thermistor may be biased 
by this heat causing the displayed 
indoor temperature to be elevated.
Incorrect
Placement
of the 824
Ceiling Fan
Natural heat
dissapation
from the 824
Touch Screen
Onboard
Thermistor
5 FEET
Optimum
Zone
2 FEET
Correct
Placement
of the 950
Correct
Placement
of the 824
Heat from the 824 screen may be 
trapped within the body of the Control 
by an external top-down airflow 
source, such as a ceiling fan.
The onboard thermistor may be biased 
by this heat causing the displayed 
indoor temperature to be elevated.
FIGure 1.  PLACeMeNT OF THe 824