Echo 8870 User Manual

Page 2

This manual will guide the installer through the installation, wiring and checkout of an Aprilaire Model 8870 Communicating
Thermostat System. Instructions for the Aprilaire 8840 Series communicating thermostat system are found in a separate
document (DP 10004345). A portion of the command set is found in Appendix 2 in this manual. For a complete command set
with programming suggestions, see the programming manual (DP 10005756). Contact Research Products Corporation for
these documents at 888-782-8638.

COMMUNICATING THERMOSTAT SYSTEM INSTALLATION MANUAL

WARNING

1. 120 volts may cause serious injury from electrical shock. Disconnect electrical power to the HVAC system before

starting installation. This system is a low-voltage system.

2. Improper installation may cause serious injury from electrical shock. This system must be installed by a qualified

contractor in accordance with NEC Standards and applicable local and state codes.

THERE ARE 14 STEPS INVOLVED IN THE INSTALLATION OF A COMPLETE SYSTEM.

Step 1

GET ALL THE COMPONENTS YOU WILL NEED

Step 2

DISCONNECT POWER TO ALL HVAC EQUIPMENT AND/OR ZONE CONTROL PANELS

Step 3

RUN THE REQUIRED WIRES

Step 4

LOCATE AND MOUNT THE AUTOMATION SYSTEM COMPONENTS

Step 5

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

Step 6

CONNECT THE COMMUNICATION AND POWER WIRES TO THE DISTRIBUTION PANEL AND THERMOSTAT

Step 7

CONNECT MULTIPLE DISTRIBUTION PANELS

Step 8

CONNECT PROTOCOL ADAPTER TO THE DISTRIBUTION PANEL AND HOST COMPUTER OR AUTOMATION SYSTEM 10

Step 9

PROVIDE POWER TO THE DISTRIBUTION PANEL

Step 10

TURN ON POWER TO ALL HVAC EQUIPMENT AND TO THE THERMOSTATS

Step 11

CHECK-OUT HVAC SYSTEM OPERATION

Step 12

ADDRESS THE THERMOSTATS AND SET HIGHEST ADDRESS

Step 13

SETUP COMPUTER FOR COMMUNICATION SYSTEM CHECKOUT

Step 14

CHECK-OUT COMMUNICATIONS TO THE THERMOSTAT NETWORK

Appendix 1

SPECIAL CONSIDERATIONS FOR INSTALLING THE MODEL 8870 WITH THE 8840 SERIES

COMMUNICATING THERMOSTAT

Appendix 2

APRILAIRE COMMAND SET

EXTRA NETWORK INTERCONNECTION WORKSHEET