Radio Thermostat of America CA8900 User Manual
Install guide i29 rev.3
Your thermostat is a precise instrument, take care.
Turn off electricity to the appliance before installing or servicing thermostat or any part of the
system.
Do not turn electricity back on until work is completed.
Do not short (jumper) across electric terminals at control on furnace or air conditioner to test
the system. This will damage the i29 Master Thermostat (Wall Unit) and void your warranty.
All wiring must conform to local codes and ordinances.
All Thermostats are designed for use with 24 volt AC and millivolt systems. The Wall Unit
should be limit to a maximum of 1.0 amps, higher amperage may cause damage to the Wall
Unit.
1
Install guide i29
You will need a small Phillips screwdriver and possibly a drill with 3/16-in. (4.8mm) bit for
mounting the i29 Master Thermostat (Wall Unit).
The i29 Wireless Thermostat system is
made of two parts – The i29 Master Thermostat (Wall Unit) and
the Slave Thermostat. (You can be purchased it at Home Depot). You will firs t install the Wall
Unit and then configure the Thermostat.
To avoid electrical shock and to prevent damage to the furnace, air
conditioner, and all thermostats, disconnect the power supply
before beginning work.
This can be done at the circuit breaker, or at the appliance.
Replacement installations - You can mount the Wall Unit in place of the old thermostat.
Remember the “C” power wire is required for operation this supplies 24VAC to the transmitter in
the Wall Unit and allows continuous communication with the Slave Thermostat. Because the i29
system is wireless it is easiest to mount the Wall Unit next to the HVAC unit in the basement attic or
HVAC closet even in a replacement installation.
New Installation or Change of location from Wall to HVAC
We recommend the WALL UNIT unit be installed in the same area and close to the HVAC location
so it can be wired directly to the HVAC’s thermostat terminals. The WALL UNIT unit has no
temperature sensing devices but still should not be mounted outside or where it would be exposed
2
to weather conditions. It can be mounted at any angle on the wall.
24VAC Power – The Wall Unit REQUIRES the HVAC24VAC power wire (C) to work. If the C
wire is not available at a previous wall installation, the C wire must be added or the Wall Unit
should be mounted at the HVAC location where the C wire power is always available.
If you are going to place the Wall Unit in the
same location as the old thermostats…
Switch electricity to the furnace and air
conditioner OFF; then proceed with the following
steps.
Remove cover from old thermostat. Most are
snap-on types and simply pull off. Some have locking screws on the side or front. These must
be loosened. Note the letters printed near the terminals. Attach labels (enclosed) to each wire
for identification.
IMPORTANT: LABEL ALL WIRES BEFORE DISCONNECTING THEM!
Wires must be labeled before they are removed. THERE IS NO STANDARD
COLOR CODE. When removing wires from their terminals, ignore the color of
the wires since these may not comply with any standard.
Read instructions carefully before removing any wiring from existing thermostat.
Label the wires one at a time. You must label all the wires before you proceed. With all wires
labeled, remove them from the old unit.
Make sure the wires do not fall back inside the wall. You can wind them around a pencil to
keep them from falling.
Loosen all screws on the old thermostat and remove it from the wall.
Fill wall opening with non-combustible insulation to prevent drafts.
If you are going to locate the Wall Unit at the HVAC…
Switch electricity to the furnace and air conditioner OFF; then proceed with the following
steps.
Open the service cover of your HVAC system and locate the thermostat terminals.
Remove any existing wire and run new thermostat wire to a convenient location for the i29
Wall Unit.
Note what color is connected to what terminal of the HVAC system.
3
You will need at least 2.6” of wire for each of your
connections to the Wall Unit.
If you do not have enough wire, splice additional
wire to allow enough slack.
Fan out wires below the hole as shown.
Please follow these guidelines for safe and secure wire connections.
Easy Terminals do not require stripping the wire.
Clip any bare wire from previous installation.
Take care not to damage the labels for each wire in handling.
Fan wires out as illustrated with Wall Unit below the wall opening.
Wires will dress behind the Wall Unit and up over the terminal area.
Use the Step-By-Step diagram as your guide.
Do not bunch wires behind Wall Unit. Feed slack back into the wall opening.
Do not allow wires to touch each other or parts on thermostat.
Insert the wire in the terminal and tighten
the screw securely.
You will need to set Configuration jumpers
per the Step-By-Step diagram. A needle-nose
plier may be required to modify jumper
positions.
Determine which step-by-step wiring diagram below
you should use. Make sure your wires are labeled.
This may require you to find the ‘other end’
connection for each wire on your heating or air conditioning equipment and read the label there.
The Wall Unit must have the 24VAC to operate. This is available as the C wire at the HVAC or a
24VAC adapter can be used connected to the RH and the C terminal.
4
·Find the reference page with your wiring diagram and jumper set-up information. Remember,
the C wire or 24vdc power is required for the Wall Unit.
If you combination of wires is not above you can use the wiring table on pages 17-18 to
determine your connections, or call our USA support line at 1-877-505-2353 for help.
5
Hold the Wall Unit against the wall, with the wires coming over the top above terminal block.
The unit will back cover the hole in the wall.
Position Wall Unit for best appearance. Use the optional stand-offs if more space for wires is
needed behind.
Attach the unit to the wall with the screws provided.
If you are mounting the unit to sheet rock or if you are using the old mounting holes, use the
plastic anchors provided. Drill a 3/16-in.
(4.8mm) hole for the insert at each screw location, then mount the base.
The Wall Unit requires 2 AA batteries for power loss backup.
Install 2 AA alkaline batteries according to the polarity noted in the compartment.
Press the RESET button to clear transient program memory.
NOTE: Replace the batteries when the battery icon blinks or once a year.
Replace the Wall Unit into the back cover.
6
Remove the unit from back cover to configure
the Thermostat.
Refer to the step-by-step wiring diagram you
used to wire the Wall Unit. There you will find
a jumper setting diagram for the unit
(pages 10 through page 16).
Push RESET on the Thermostat (anytime set
up jumpers are changed, reset is required)
After you have finished the wiring of the WALL UNIT unit and the set the JUMPERs of the unit,
the two units must be radio connected before they can be used. If the BINDING radio z-wave icon
on the display is blinking, they are connected; if it is NOT ON follow this procedure connect them.
On the i29 Master thermostat. (WALL UIIT)
Push and Hold the binding button.
Touch the reset button once.
Release the binding button.
On the Slave Thermostat. (You can be purchased it at Home Depot).
Push and Hold the binding button.
Touch the reset button once.
When the radio z-wave icon is blinking on screen, release the binding button.
The above procedures clears the two radios so they can now be connected by doing the following:
Push the reset button once.
The radio z-wave icon is goes off.
The Z-Wave radio system
There have been many radio controlled thermostat systems but they were one way and there was no
indication if they were working. The new Z-Wave radio is two way, it sends the command and gets
back confirmation that the command was received and implemented.
There is a radio z-wave icon on the Thermostat lower right display. If this icon is not there,
communication has been lost. If this occurs, all HVAC functions are shut off.
Though the units are designed to work at least 100 feet from each other that distance can be affected
by interference or blocking from walls etc. If your i29 Thermostat unit cannot stay in
communication (the radio z-wave icon does not stay on) you may need a repeater unit between the
two which can be purchased at home depot.
7
The radio z-wave icon also shows a radiation pattern every time the Slave Thermostat
communicates with the WALL UNIT unit.
Once the two units are connected, follow these procedures to verify you have correctly installed the
Thermostat and its WALL UNIT unit.
Because of the radio communication confirmation system, there will be a small delay between the
operation and the function. Follow these procedures to verify you have correctly installed the i29
system.
To check Fan: (If you connected the G wire – fan relay)
Switch the FAN switch to the ON position. You should see the FAN light go ON on the Wall
Unit and verify that air is blowing from the system. Return to AUTO position for normal
operation.
To check HEAT mode:
Press the mode button to HEAT.
Set the fan switch to AUTO.
·Using the TEMP + button raise the Target T emp to 90deg.
Allow the system 2 min to respond.
Verify that heat is blowing from the system. HEAT light on the Wall Unit should go ON.
To check COOL mode:
Press the mode button to COOL.
Press the TEMP – button to a temp 5 degrees below the room temp.
Allow the system 2 minutes to respond.
Verify that cool air is blowing from the system. COOL light on the Wall Unit should go ON.
NOTE: If you have labeled your wires, follow the correct Step-By-Step, and these Check
procedures do not operate you system call support at 1-877-505-2353
Congratulations, you have successfully installed your unit. Please proceed to the
OPERATING Guide to initialize the i29 System.
8
Loading...