Intouch CA8900 Z-Wave Digital Thermostat Installation GUIDE

Intouch CA8900 Z-Wave Digital Thermostat 

WARNING–Risk of Fire or Electric Shock

To avoid fire, shock, or death, and to prevent damage to the furnace, air conditioner, and thermostat, disconnect the power supply before beginning work. This can be done at the circuit breaker, or at the  appliance.

• Your thermostat is a precise instrument, handle it with care.
• Do not turn the 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 thermostat and void your warranty.
• All wiring must conform to local codes and ordinances.
• This thermostat is designed for use with 24 volt AC systems. The thermostat should be limited to a maximum of 1.0 amps; higher amperage may cause damage to the thermostat.

Tools Needed

• #1 Phillips screwdriver (small)
• Drill with 3/16-in. (4.8mm) bit

Location of Thermostat

Replacement installations—mount the new thermostat in place of the old one.

New installations—follow the guidelines listed below.

• Locate the thermostat on an inside wall, about 5 ft. (1.5m) above the floor, and in a room that is used often.
• Do not install it where there are unusual heating conditions, such as: in direct sunlight; near a lamp, radio, television, radiator register, or fireplace; near hot water pipes in a wall; near a stove on the other side of a wall.
• Do not locate in unusual cooling conditions, such as: on a wall separating an unheated room; or in a draft from a stairwell, door, or window.
• Do not locate in a damp area. This can lead to corrosion that will shorten thermostat life.
• Do not locate where air circulation is poor, such as: in a corner or an alcove; or behind an open door.
• Do not install the unit until all construction work and painting has been completed.
• This thermostat does not require leveling.

Label Wires from Old Unit

1. IMPORTANT: LABEL ALL WIRES BEFORE DISCONNECTING THEM!
   Switch electricity to the furnace and air conditioner OFF; then proceed with the following steps.
2. Remove cover from old thermostat. Most are snapon 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.
3. Attach labels (enclosed) to each wire for identification.
   NOTE: Read instructions carefully before removing any wiring from existing thermostat. 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.

Remove Old Unit

1. Label the wires one at a time. You must label all the wires before you proceed.
2. With all wires labeled, remove them from the old unit.
   NOTE: Make sure the wires do not fall back inside the wall. You can wind them around a pencil to keep them from falling.
3. Loosen all screws on the old thermostat and remove it from the wall.
4. Fill wall opening with non-combustible insulation to prevent drafts.

Mount the CA8900 Thermostat

1. Separate front from back of unit. Grasp the thermostat and pry the body away from the base, lift up to remove the body from the base. Set aside the control unit.
2. Hold the base against the wall, with the wires coming through the opening below the terminal block.
3. Thread wires through the hole in the thermostat base. Take care not to “short” wires.
4. Position the base for best appearance. Mark the holes in pencil for drilling or mount directly to the wall with the two screws provided.
5. If you are mounting the base to drywall 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, and then mount the base.
6. Thread wires through the hole in the thermostat base.
7. Leave wires loose in the opening, take care that they do not “short.”

Before You Connect Wires

Please follow these guidelines for safe and secure wire connections.

• Use the Step-By-Step diagram as your guide.
• Strip 3/8” of the wire and form as shown
• Take care not to damage the labels for each wire in handling.
• Fan wires out as illustrated with CA8900 below the wall opening.
• Wires will dress behind the CA8900 and up over the terminal area.
• Do not bunch wires behind CA8900. Feed slack back into the wall opening.
• Connect labeled wires only to a terminal with corresponding letter.
  CAUTION: 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
  Which wires do you have?
• Determine which step-by-step wiring diagram you should use from the next pages. 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.
• You must have a wire marked “C” (24VAC) for the CA8900 to operate. Without the 24VAC power, the CA8900 will run on its back-up batteries for just a few days.

Find and Use the Set-Up Diagram for Your System

Find the reference page with your wiring diagram and jumper set-up information. Remember, the C wire [24vac power] is not optional. If your combination of wires is not shown here, you can use the Wiring Reference Guide beginning on page 11 to determine your connections, or contact Customer Service for help.

1. Connect the R (or RH) wire to the RH terminal on the CA8900. This connects the Heater Power to the thermostat.
2. Connect the W wire to the W on the CA8900. This connects the heater control line to the CA8900.
3. Connect the C wire to the C terminal on the CA8900. This connects 24vac power.
4. Set Config jumpers as shown.
   • If you have Electric heat, set 1A.
   • If you have Gas or Oil, set 1B.
     Your system is now connected.

 

1. Based on your valve type:
   • motor driven Valve – Connect the R (or RH) wire to the RH terminal on the CA8900. Connect the W wire to the W terminal on the CA8900. Connect the remaining wire to the A terminal.
   •  Solenoid valve -Connect the R (or RH) wire to the RH terminal on the CA8900. Connect the W wire to the A terminal on the CA8900. Connect the remaining wire to the W terminal.
2. Connect the C wire to the C terminal on the CA8900. This connects 24vac power.
   3. Set Config jumpers as shown.
   Your system is now connected.
   

 

1. Connect the R (or RH) wire to the RH terminal on the CA8900. This connects to the Heater Power.
2. connect the W wire to the W terminal on the CA8900. This connects the heater control line to the CA8900.
3. Connect the G wire to the G terminal on the thermostat. This connects the Fan to the CA8900
4. Connect the C wire to the C terminal on the CA8900. This connects 24vac power.
5. Set Config jumpers as shown.
   • If you have Electric heat, set 1A.
   • If you have Gas or Oil, set 1B.
     Your system is now connected.

 

1. Connect the W wire to the W terminal on the thermostat. This connects to the heater control line.
2. Connect the Y wire to the Y terminal on the CA8900. This connects to the Cool compressor.
3. Connect the RH or R wire to the RH terminal on the thermostat.
   This connects the Heater/Cool Power.
4. Connect the G wire to the G terminal on the Thermostat. This connects to the Fan.
5. Connect the C wire to the C terminal on the CA8900. This connects 24vac power.
6. Set Config jumpers as shown.
   • If you have Electric heat set 1A.
   •  if you have Gas or Oil set 1B.

 

1. Connect the W wire to the W terminal on the thermostat. This connects to the heater control line.
2. Connect the Y wire to the Y terminal on the CA8900. This connects to the Cool compressor.
3. Connect the RH wire to the RH terminal and the RC wire to the RC terminal on the CA8900. This connects the Heater and Cool Power.
4. Connect the G wire to the G terminal on the Thermostat. This connects to the Fan.
5. Connect the C wire to the C terminal on the CA8900.This connects 24vac power.
6. Set Config jumpers as shown.
   1. If you have Electric heat set 1A.
   2. If you have Gas or Oil set 1B.

 

1. Connect O wire to the O terminal or B wire to the B terminal on the CA8900. (If you have both O and B, connect O wire to O terminal
   DO NOT connect B to B terminal. (See page 10 Trane for the B wire terminal.) This connects the change-over valve.
2. Connect the Y wire to Y on the CA8900. This connects the Compressor.
3. Connect the R (or RH) wire to RH on the CA8900. This connects to the 24vac power.
4. Connect the G wire to the G terminal on the CA8900. This connects the Fan.
5. connect the C wire to the C terminal on the CA8900. This connects 24vac power.
6. Set Config jumpers as shown.

 

1. Connect O wire to the O terminal or B wire to the B terminal on the CA8900. If you have both O and B, connect O wire to O terminal. DO NOT connect B to B terminal. See page 10 Trane for B wire terminal.
2. Connect the W2 wire to W2 on the CA8900.
3. Connect the Y wire to Y on the CA8900.
4. Connect the R wire to RH on the CA8900.
5. Connect the G wire to G on the CA8900.
6. Connect the C wire to the C terminal on the CA8900. This connects 24vac power.
7. Set Config jumpers as shown.
8. Set jumper 5 if you have Gas or Oil aux heat.

 

1.  Connect the W wire to the W terminal and W2 to W2 on theCA8900. This connects 2 stages of heat.
2. Connect the Y wire to the Y terminal wire on the CA8900. This connects cool.
3. Connect the RH or R wire to the RH terminal on the thermostat. This connects the Heater/Cool Power.
4. Connect the G wire to the G terminal on the Thermostat. This connects to the Fan.
5. Connect the C wire to the C terminal on the CA8900. This connects 24vac power
6. Set Config jumpers as shown.
   • If you have Electric heat, set 1A.
   •  If you have Gas or Oil, set 1B.

Install AA Batteries

While the CA8900 requires the C wire (24VAC) to operate. It also requires 2AA batteries to back-up the 24VAC power for up to a few days.

1. Install 2 AA alkaline batteries according to the polarity noted in the compartment. LCD segments will go on.
2. Press the RESET button (on front of the thermostat) to clear transient program memory.
   NOTE: Replace the batteries when this LOW battery indicator appears on the display or once a year.

When you have finished inserting the batteries:

1. Attach control unit to wall unit.
2. Hook the top of the body onto the base.
3. Swing the body down, and
4. Snap the body onto the base.

Check Out the CA8900 Unit

Follow these procedures to verify you have correctly installed the CA8900.
Turn power to the system back on.
To check Fan: (If you connected the G wire – fan relay)

1. Slide the FAN switch to the ON position.
2. Verify that air is blowing from the system.
3. Return to AUTO position for normal operation.

To check HEAT mode:

1. Press HEAT button, setting the mode to HEAT. The word HEAT displays.
2. Slide the FAN switch to AUTO.
3. Using the TEMP UP (+) button, raise the Target Temp to 90° F.
4. Allow the system 2 min to respond.
5. Verify that heat is blowing from the system.
6. Press the HEAT button to shut heat off.

To check COOL mode:

1. Press the COOL button, setting the mode to COOL.
   The word COOL displays.
2. Slide the FAN switch to AUTO.
3. Press the TEMP DOWN (–) button to a temp 5 degrees below the room temp.
4. Allow the system 2 minutes to respond.
5. Verify that cool air is blowing from the system.
6. Press the COOL button to shut cooling off.
   Congratulations, you have successfully installed your unit
   Please proceed to the OPERATING Guide to initialize the CA8900.
   NOTE: If you have labeled your wires, followed the correct Step-By-Step, and these Check procedures do not operate your system, call Customer Support.

Power Requirement

24VAC Required!
This thermostat must run on the HVAC 24VAC (C) wire. As shown in the wiring diagrams, the C wire is the other side of the 24VAC heating transformer and can be found where the other thermostat wires connect at the wall or at the furnace. Do not use the common or ground side of the line voltage. With the C wire connected, the thermostat will continue to work if the batteries die or are removed. The batteries are for back-up in case of power loss and only will last a few days. In case of total power loss the NORMAL and SAVE energy settings will return to their default settings (see operation guide) when power is reapplied.

Changing Calibration

Your thermostat comes from the factory calibrated to +/- 1 degree of actual temperature. It is an accurate instrument. If you want your thermostat to display the same temperature as another thermometer in your home, you can adjust its calibration.
To change the calibration:

1. Remove the top cover.
2. Locate the Calibration switch and slide it to the ON position. The current calibration factor (+/-) of the CA8900 will appear in the LCD display.
3. Push the UP or DOWN arrows until the desired calibration factor is reached.
4. Slide the Calibration switch to the OFF position. The new calibrated temperature will be displayed on the LCD.

Wire Reference Guide

Your Wires Intermatic Terminal

• R or V or V R RH and RC Single power for HEAT and COOL
• RH or 4 RH Power for HEAT (RH not connected to RC)
• RC RC Power for COOL (RH not connected to RC)
• W W Heat control
• W2 W2 2nd stage HEAT or heat pump auxiliary heat ? A 3rd wire for zoned hot water heat (see zoned)
• Y Y COOL control
• Y2 2nd stage COOL control (do not connect; tape off)
• G or F G FAN control
• C or X C Common 24VAC power (to power thermostat)
• E Emergency heat (do not connect, tape off)
• L System monitor (do not connect, tape off)
• T Outdoor sensor (do not connect, tape off)
• B or B Heat pump changeover (cool to heat, powered in heat)
• O O Heat pump changeover (heat to cool, powered in cool)
• B and O If there are both B and O wires
• (Trane pump products). DO NOT CONNECT B to B terminal, connect B to C terminal.

Lennox Heat Pump

• Your Wires Intermatic Terminal
• V or VR or R RH
• M or Y Y
• Y or W or W2 W2
• F or G G
• R or O O
• X or X2 or C C

Trane Products (Amer Std)

• Your Wires Intermatic Terminal
• B C
• W or W1 W2

Zoned Systems

• Your Wires Intermatic Terminal
• 2 wire Zoned Hot Water
• R RH
• W W
• 3 Wire Zoned Hot Water Motor Driven Valves
• R RH
• W W
• Y (the 3rd wire) A
• 3 Wire Zoned Hot Water Solenoid Valves
• R RH
• W A
• Y (the 3rd wire) W

Jumper Reference

LIMITED ONE-YEAR WARRANTY

If within one (1) year from the date of purchase, this product fails due to a defect in material or workmanship, Intermatic Incorporated will repair or replace it, at its sole option, free of charge. This warranty is extended to the original household purchaser only and is not transferable. This warranty does not apply to: (a) damage to units caused by accident, dropping or abuse in handling, acts of God or any negligent use; (b) units which have been subject to unauthorized repair, opened, taken apart or otherwise modified; (c) units not used in accordance with instructions; (d) damages exceeding the cost of the product; (e) sealed lamps and/or lamp bulbs, LED’s and batteries; (f) the finish on any portion of the product, such as surface and/or weathering, as this is considered normal wear and tear; (g) transit damage, initial installation costs, removal costs, or reinstallation costs. INTERMATIC INCORPORATED WILL NOT BE LIABLE FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES, SO THE ABOVE LIMITATION OR EXCLUSION MAY NOT APPLY TO YOU. THIS WARRANTY IS IN LIEU OF ALL OTHER EXPRESS OR IMPLIED WARRANTIES. ALL IMPLIED WARRANTIES, INCLUDING THE WARRANTY OF MERCHANTABILITY AND THE WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE, ARE HEREBY MODIFIED TO EXIST ONLY AS CONTAINED IN THIS LIMITED WARRANTY, AND SHALL BE OF THE SAME DURATION AS THE WARRANTY PERIOD STATED ABOVE. SOME STATES DO NOT ALLOW LIMITATIONS ON THE DURATION OF AN IMPLIED WARRANTY, SO THE ABOVE LIMITATION MAY NOT APPLY TO YOU.
This warranty service is available by either (a) returning the product to the dealer from whom the unit was purchased, or (b) mailing the product, along with proof of purchase, postage prepaid to the authorized service center listed below. This warranty is made by: Intermatic Incorporated/After Sales Service/7777 Winn Rd., Spring Grove, Illinois 60081-9698/815-675-7000 http://www.intermatic. com Please be sure to wrap the product securely to avoid shipping damage. INTERMATIC INCORPORATED, SPRING GROVE, ILLINOIS 60081-9698

REFERENCE:

DOWNLOAD MANUALS:

Intouch CA8900 Z-Wave Digital Thermostat Installation GUIDE

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Intouch CA8900 Z-Wave Digital Thermostat Operating Guide

Intouch CA8900 Z-Wave Digital Thermostat Installation GUIDE