Echo 8870 installation manual Step, Run The Required Wires See Illustration

Step 3

RUN THE REQUIRED WIRES (SEE ILLUSTRATION 2)

1.Run thermostat cable from each thermostat to the appropriate HVAC system or zone control panel. Use 4 through 8-conductor thermostat cable depending on the type of equipment and number of equipment stages. Run one more wire than would be required if connecting to a mechanical thermostat.

❖If you are using remote temperature or humidity support modules as part of your installation, now is the time to run the additional wires for these items. A separate Category 5 cable must be run from thermostat to support module.

2.At the HVAC/zone control system, use a piece of tape to ✍ label the location of the thermostat on the cable as you go.

3.Run Category-5, 4-pair twisted cable (8-conductor) from each thermostat to the Distribution Panel.

4.At the Distribution Panel, use a piece of tape to ✍label the location of the thermostat on the cable as you go.

5.Run Category-5 wire from the Distribution Panel to the Protocol Adapter. If more than one Distribution Panel is used, run Category-5 wire between each panel.

6.Run two-conductor thermostat cable from the

Model 8027 Transformer to the Distribution Panel. You can use Category-5 wire, but you must use one pair of wires per terminal.

ILLUSTRATION 2 – Run Wire For System

ZONE DAMPERS

2-WIRE THERMOSTAT CABLE

MODEL 8027 PLUG-IN

TRANSFORMER

(FOR COMMUNICATION SYSTEM)

THERMOSTAT 1

THERMOSTAT 2

2-WIRE	SINGLE ZONE
THERMOSTAT	HVAC EQUIPMENT
CABLE

SEE ZONE CONTROL SYSTEM

INSTALLATION LITERATURE

FOR COMPLETE ZONE

SYSTEM WIRING

REQUIREMENTS

ZONE CONTROL SYSTEM

4000 FT.

MAX.

MAX.FT.4000						DISTRIBUTION PANEL
POWER RX TX		RX	TX	RX	TX
	DATA	ENABLE		DATA		MAX.FT.
	RS-485	RS-485		RS-232
Power						4000
Model 8811 Protocol Adapter
7.5VAC	RS-485		RS-485		RS-232

INSTALLATION TIP: USE A

PIECE OF TAPE TO

IDENTIFY WHICH

THERMOSTAT EACH CABLE

IS RUN TO

USE 2-WIRE THERMOSTAT

CABLE TO CONNECT OFF-

BOARD SENSORS SUCH AS

THE MODEL 8051 FLUSH

MOUNT SENSOR TO

SUPPORT MODULES.

1000 FT.	SUPPORT MODULE
MAX.

4000 FT.

MAX.

THERMOSTAT 3

4000 FT. MAX.

THERMOSTAT 4

CATEGORY 5 (4-PAIR TWISTED)

COMMUNICATION WIRE

NOTE: TOTAL DISTANCE FROM

PROTOCOL ADAPTER TO THERMOSTAT

NOT TO EXCEED 4,000 FEET

THERMOSTAT CABLE 5 thru 8 CONDUCTOR

3