Echo 8870 Do not Turn on Hvac System Power YET, Diagram 1 Typical Heating / Cool Wiring Schematic

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Step 5

CONNECT THE CONTROL WIRES TO THE HVAC/ZONE SYSTEM AND THERMOSTATS

A qualified HVAC technician should perform this step to ensure proper termination.

1.Make sure the HVAC system power is off.

2.The Thermostat Installation Instructions show wiring diagrams for several different HVAC equipment types. Use DIAGRAMS 1 & 2 as a reference only. Use color coding where possible.

DO NOT TURN ON

THE HVAC SYSTEM

POWER YET!

DIAGRAM 1 – Typical Heating / Cool Wiring Schematic

MULTI-STAGE FURNACE	USE 18-20 GA. THERMOSTAT CABLE. NUMBER OF CONDUCTORS
	REQUIRED DEPENDS ON THE HVAC SYSTEM BEING CONTROLLED
	REQUIRED DEPENDS ON THE HVAC SYSTEM BEING CONTROLLED

	2ND STAGE		Y2
2ND		COOL
2ND
STAGE			W2
HEAT	1ST STAGE
		COOL	Y1
	1ST
	STAGE		W1
	HEAT
FAN			G
RELAY			G
RELAY
	24		C
	24
	VAC		R
			R
L2	120	L1		C	RC
	120			C
	VAC			R
	VAC				RH

				RSR
				RSR
MULTI-STAGE A/C				RSC	R.V.-Cool (O)
				RSB	G
	2ND			RSA	G
	2ND		Y2	RSA	HUM W1
	STG		Y2	REF	DEH Y1
	COOL			B-	DEH Y1
1ST	COOL				W2

				B+
STG			Y1	B+	Y2
COOL				A-
			C	A+
			C	R.V.-Heat (B)
				R.V.-Heat (B)

CAUTION!	REFER TO THE THERMOSTAT INSTALLATION SHEET FOR
CAUTION!	INTERNAL SCHEMATIC, THERMOSTAT CHECK-OUT
ENSURE HVAC SYSTEM POWER	PROCEDURES AND OTHER HVAC WIRING DETAILS
IS OFF BEFORE WIRING

DIAGRAM 2 – Typical Heat Pump Wiring Schematic

USE 18-20 GA. THERMOSTAT CABLE. NUMBER OF CONDUCTORS REQUIRED DEPENDS ON THE HVAC SYSTEM BEING CONTROLLED

CAUTION!

ENSURE HVAC SYSTEM POWER

IS OFF BEFORE WIRING

INDOOR BLOWER/HEAT UNIT

2ND
STAGE		W2
AUX.		W2
AUX.
HEAT
	1ST
	STAGE	W1
	AUX.	W1
	AUX.
FAN	HEAT
FAN		G
RELAY		G
RELAY
	24	C
	24
	VAC	R
		R

L2		L1
	120

VAC

REFER TO THE THERMOSTAT INSTALLATION SHEET FOR INTERNAL SCHEMATIC, THERMOSTAT CHECK-OUT PROCEDURES AND OTHER HVAC WIRING DETAILS

OUTDOOR HEAT PUMP UNIT

REV		1ST
VALVE		STG
HEAT	COMP.			DEFROST			SERVICE
	2ND		REV	DEFROST			SERVICE
	STG		VALVE
	COMP.		COOL
B	Y2	Y1	O		W1	C	L	R

C						RC
R						RC
R						RH
RSR						RH
RSR
RSC					R.V.	-Cool (O)
RSB					R.V.	-Cool (O)
RSB						G
RSA						G
RSA						HUM W1
REF						HUM W1
REF						DEH Y1
B-						DEH Y1
B-						W2
B+						W2
B+						Y2
						Y2
A-
A-

A+

R.V.-Heat (B)

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Contents Communicating Thermostat System Installation Manual Appendix Communicating Thermostat System Installation ManualStep Tools YOU will NEED… Model 8870 ThermostatModel 8811 Protocol Adapter Model 8818 Distribution PanelUse Category-5 cable for all communication wiring Model 8870 ThermostatModel 8818 Distribution Panel Model 8061 and Model 8062 Support ModulesRUN the Required Wires see Illustration Illustration 2 Run Wire For SystemLocate and Mount the Automation System Components FEW Minutes Spent Writing DownFill Out and Leave with System Software Package Illustration 3 Network Interconnection WorksheetDiagram 2 Typical Heat Pump Wiring Schematic Do not Turn on Hvac System Power YETDiagram 1 Typical Heating / Cool Wiring Schematic Communication System Wiring Distribution PanelDiagram 4 Thermostat Communication Wiring Communication Terminal DefinitionsDiagram 5 Multiple Distribution Panels Connect Multiple Distribution PanelsDiagram 6 Protocol Adapter Wiring VAC Transformer provided w/ protocol adapterProvide Power to the Distribution Panel Turn on Power to ALL Hvac Equipment and to the ThermostatsOther Switches CHECK-OUT Hvac System OperationIllustration 5 Setting the Thermostat Address Address the Thermostats and SET Highest AddressTo the right of the message center display Press the Enter button to select this sub-menuSetup Computer for Communication System Checkout Illustration 6 Access HyperTerminalTurn on the computer From the Start menu, select Programs Illustration 7 New ConnectionIllustration 9 Connection Properties Data bits Parity None Stop bits Flow control none Click OKIllustration 8 Select Com Port Press Enter to clear the command line Illustration 10 Terminal SettingsIllustration 11 Ascii Setup Click OK to put away both dialog boxesIllustration 12 Com Switches CHECK-OUT Communications to the Thermostat NetworkType SN? and press Enter Type SN ID? and press EnterDiagram 7 Adding an 8870 Thermostat AppendixDiagram 8 Adding an 8840 Series Thermostat Illustration 13 Remove Terminating ResistorsTo be set. The value must follow the action with no Aprilaire Command SETCommand Response Syntax Communication Control Commands Thermostat Sensing CommandsThermostat Hvac Operational Commands Auxiliary Information CommandsFill Out and Leave with System Software Package DP 10005754