Trane CA8900 manual Find and Use the Set-Up Diagram for Your System, Wire Zoned Hot Water +C

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 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.

2 WIRE HEAT +C

WIRES:

C W RH

From	2 Wire
Furnace
	Heat +C

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.

OPTIONAL POWER

C

W RH

C W R

3.Connect the C wire to the C terminal on the CA8900. This con- nects 24vac power.

4. Set Config jumpers as shown.		1	2	3 4 5
	A
-- If you have Electric heat, set 1A.
	B
-- If you have Gas or Oil, set 1B.
Your system is now connected. Continue on page 9.

C B O W2 W Y RH RC G A

CA8900 Terminals

3 Wire Zoned Hot Water +C

WIRES:

W RH A

From	3 Wire
Furnace	Zoned
	Hot Water +C
W	RH	A	C
		Motor Valve
	C	W	R A

1.Based on your valve type:

-- Motor driven Valve - Connect the R (or RH) wire to the RH ter- minal 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 con-

nects 24vac power. 1 2 3 4 5

3. Set Config jumpers as shown.

C B O W2 W Y RH RC G A

CA8900 Terminals

Your system is now connected. Continue on page 9.

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