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®
MODEL CA8900 Z-Wave
Digital Thermostat
Installation and User Instructions
Description and Features
The CA8900 is a digital thermostat that can be con-
trolled wirelessly with Z-Wave controllers supporting
the Thermostat General V2 Device Class. The thermo-
stat is compatible with all standard 24 VAC heating
and cooling systems, up to two-stage heat, one-stage
cool, and two-stage heat pump. The CA8900 operates
as a simple thermostat with buttons to set target tem-
peratures for heat and c
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® CA8900 Z-Wave Thermostat Installation Guide 2 Part One: Operating Guide Operating the CA8900 To set the thermostat to control your heating system, press the HEAT button so the word HEAT displays. Press again to turn OFF. The word HEAT will flash when the thermostat is calling for heat. Press the TEMP UP and TEMP DOWN buttons to select the desired temperature. The word TARGET will be displayed with the temperature you are setting. (The display will return to showing room temperatur
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® CA8900 Z-Wave Thermostat Installation Guide 3 ® Joining to a Z-Wave Network To join a Z-Wave network, set the Z-Wave controller to INCLUDE mode, then press and release the BIND button on the CA8900 thermostat. Follow instructions provided with your controller. You would also use the BIND button when excluding from a Z-Wave network. Low Battery Warning When the batteries are low, the battery the HVAC system will stop function if the thermostat icon on the display panel will flash.
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® CA8900 Z-Wave Thermostat Installation Guide 4 Part Two: Installing Guide WARNING–Risk of Fire or Electric Shock • To avoid fire, shock, or death, and to prevent damage to the furnace, • Do not short (jumper) across electric terminals at control on air conditioner, and thermostat, disconnect the power supply before furnace or air conditioner to test the system. This will damage the beginning work. This can be done at the circuit breaker, or at the thermostat and void your warrant
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® CA8900 Z-Wave Thermostat Installation Guide 5 4 – Mount the CA8900 Thermostat 5. If you are mounting the Terminal 1. Separate front from back of Hole in Block Control unit base to drywall or if you unit. Grasp the thermostat wall [body] are using the old mount- and pry the body away from ing holes, use the plastic the base, lift up to remove anchors provided. Drill the body from the base. Set a 3/16-in. (4.8mm) hole aside the control unit. for the insert at each Thermostat B
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® CA8900 Z-Wave Thermostat Installation Guide 6 5 – Find and Use the Set-Up Diagram for Your System Find the reference page with your wiring diagram and If your combination of wires is not shown here, you jumper set-up information. Remember, the C wire can use the Wiring Reference Guide beginning on [24vac power] is not optional. 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. WIRES: 2 WIRE HEA
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® CA8900 Z-Wave Thermostat Installation Guide 7 WIRES: 1. Connect the R (or RH) wire to the RH terminal on the CA8900. This C W RH G 3 Wire connects to the Heater Power. Heat 3 Wire 2. Connect the W wire to the W terminal on the CA8900. This con- Heat +C +C nects the heater control line to the CA8900. 3. Connect the G wire to the G terminal on the thermostat. This con- nects the Fan to the CA8900 W 4. Connect the C wire to the C terminal on the CA8900. This con- nects 24vac power. 5.
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® CA8900 Z-Wave Thermostat Installation Guide 8 1. Connect O wire to the O terminal or B wire to the B terminal WIRES: 4 Wire on the CA8900. (If you have both O and B, connect O wire to O C B or O Y RH G Heat terminal 4 Wire Heat Pump Pump w/o Aux Heat +C DO NOT connect B to B terminal. (See page 10 Trane for the B w/o wire terminal.) This connects the change-over valve. Aux 2. Connect the Y wire to Y on the CA8900. This connects the Com- +C B pressor. 3. Connect the R (or RH)
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COOL RESET T T F COOL AU O ON NORMAL SAVE HEA COOL AN ENERGY AA - + - AA + ® CA8900 Z-Wave Thermostat Installation Guide 9 6 – 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 polar- ity noted in the compartment. LCD segments will go on. 2. Press the RESET button (on front of the thermostat) to clear transient program memory.
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OFF ON ® CA8900 Z-Wave Thermostat Installation Guide 10 Power Requirement 24VAC Required! ground side of the line voltage. With the C wire con- nected, the thermostat will continue to work if the bat- This thermostat must run on the teries die or are removed. The batteries are for back-up HVAC 24VAC (C) wire. in case of power loss and only will last a few days. As shown in the wiring diagrams, the C wire is the In case of total power loss the NORMAL and SAVE other side of the 2
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® CA8900 Z-Wave Thermostat Installation Guide 11 Jumper Reference HEAT PUMP POWER C/F HPAUX FAN JP5 JP3 TYPE JP4 JP1 TYPE JP2 2A JUMPER 1A AUX HEAT RC-RH Celsius GAS/OIL ON ELECT ONLY CONCTED AUX H-PUMP 3 4 5 2 1 ELECTRIC RC-RH Fahrenheit 2B 1B REMOVED AUX SEPARATE GAS/OIL HEAT PUMP FURN WITH AUX NO JUMPER NO JUMPER NO FAN NORMAL HP AUX TYPE JP1 JP2 4 5 Celsius/ Fahrenheit JP5 JP3 JP4 1 2 3 A B FAN CONTROL Heat Pump/ POWER Aux Only LIMITED ONE-YEAR WARRANTY If within one (1) year from
