Echo 8870 Connect Multiple Distribution Panels, Diagram 5 Multiple Distribution Panels

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Step 7

CONNECT MULTIPLE DISTRIBUTION PANELS

1.MAKE SURE THAT ALL SWITCHES IN THE DISTRIBUTION PANEL ARE OFF!

2.If more than one Distribution Panel is used in the thermostat network, the communication lines must be daisy-chained together.

• Use the wire colors shown in DIAGRAM 5 to help ensure proper, consistent connections.

DIAGRAM 5 – Multiple Distribution Panels

POWER RX TX		RX TX RX TX
	DATA	ENABLE	DATA
	RS-485 RS-485 RS-232
Model 8811 Protocol Adapter
Power
7.5VAC	RS-485 RS-485			RS-232
	BLU/WHT			BLU/WHT
	ORG/WHT			BLU
	RED/WHT			ORG/WHT
	BLK/WHT			ORG	CAT-5

WHEN CONNECTING MULTIPLE DISTRIBUTION PANELS, CONNECT THE "REF" TERMINALS FOR EACH THERMOSTAT TO THE "REF" TERMINAL OF THE RESPECTIVE DISTRIBUTION PANEL AND CONNECT THE REF TERMINALS OF EACH DISTRIBUTION PANEL TO EACH OTHER.

		ORG	ORG/WHT	BLU	BLU/WHT	ORG
						ORG/WHT
						BLU
						BLU/WHT
						GRN/WHT
		A+ A-		B+ B- REF
A+	A
A+
A-	ON	OFF				OFF	ON
B+	B					OFF	ON
	B

B-	ON	OFF				OFF	ON
PWR						OFF	ON
R
C

A

B

PWR

A

B

R B- B+ A- A+

A+ A- B+ B- R

CAT-5
	ORG	ORG/WHT	BLU	BLU/WHT	GRN/WHT
	A+ A-		B+ B-		REF
A						A
ON	OFF					A
ON	OFF				OFF	ON
B					OFF	ON
B						B
ON	OFF					B
ON	OFF
PWR					OFF	ON

A

B

B- B+ A- A+

DISTRIBUTION PANEL #1

DISTRIBUTION PANEL #2

9

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Contents Communicating Thermostat System Installation Manual Appendix Communicating Thermostat System Installation ManualStep Model 8818 Distribution Panel Tools YOU will NEED…Model 8870 Thermostat Model 8811 Protocol AdapterModel 8061 and Model 8062 Support Modules Use Category-5 cable for all communication wiringModel 8870 Thermostat Model 8818 Distribution PanelIllustration 2 Run Wire For System RUN the Required Wires see IllustrationFEW Minutes Spent Writing Down Locate and Mount the Automation System ComponentsIllustration 3 Network Interconnection Worksheet Fill Out and Leave with System Software PackageDiagram 2 Typical Heat Pump Wiring Schematic Do not Turn on Hvac System Power YETDiagram 1 Typical Heating / Cool Wiring Schematic Distribution Panel Communication System WiringCommunication Terminal Definitions Diagram 4 Thermostat Communication WiringConnect Multiple Distribution Panels Diagram 5 Multiple Distribution PanelsVAC Transformer provided w/ protocol adapter Diagram 6 Protocol Adapter WiringCHECK-OUT Hvac System Operation Provide Power to the Distribution PanelTurn on Power to ALL Hvac Equipment and to the Thermostats Other SwitchesPress the Enter button to select this sub-menu Illustration 5 Setting the Thermostat AddressAddress the Thermostats and SET Highest Address To the right of the message center displayIllustration 7 New Connection Setup Computer for Communication System CheckoutIllustration 6 Access HyperTerminal Turn on the computer From the Start menu, select ProgramsIllustration 9 Connection Properties Data bits Parity None Stop bits Flow control none Click OKIllustration 8 Select Com Port Click OK to put away both dialog boxes Press Enter to clear the command lineIllustration 10 Terminal Settings Illustration 11 Ascii SetupType SN ID? and press Enter Illustration 12 Com SwitchesCHECK-OUT Communications to the Thermostat Network Type SN? and press EnterAppendix Diagram 7 Adding an 8870 ThermostatIllustration 13 Remove Terminating Resistors Diagram 8 Adding an 8840 Series ThermostatTo be set. The value must follow the action with no Aprilaire Command SETCommand Response Syntax Auxiliary Information Commands Communication Control CommandsThermostat Sensing Commands Thermostat Hvac Operational CommandsFill Out and Leave with System Software Package DP 10005754