Aprilaire 8870 System Installation Manual

12, 10 ORG/WHT BLU/WHT RED/WHT BLK/WHT ORG/WHT ORG BLU BLU/WHT ORG BLU/WHT CAT-5 ORG/WHT BLU PROTOCOL ADAPTER PIN-OUTS RS-485 CONNECTIONS WIRE COLOR FLYING LEADS BLK/WHT RED/WHT ORG/WHT BLU/WHT SIGNAL Rx+ Tx+ Rx-Tx- RS-485 CONNECTORS 1 2 3 4 5 6 RS-232 CONNECTOR 1 - CTS: Clear to Send (Outgoing - pu…

4, Aprilaire 8870 2 MODEL 8870 THERMOSTAT The Model 8870 Thermostat is field configurable to operate single and multi-stage separate heating and cooling equipment (such as furnace and air conditioner or roof top units), or single and multi-stage heat pump systems. A menu driven set up, using the message center displa…

20, PROTOCOL ADAPTER WITH COVER REMOVED JP9 Place these 2 jumpers on just one pin RJ11 Connectors Y2 W1 24V(c) 24V R G Y1 W2 CLK1 RS1 1 RS+v RS2 CLK2 2 Communication Card MODEL 8809 COMMUNICATING SUB-BASE MODEL 8848 SHOWN ORG/WHT BLU ORG 40VA XFRMR BRN GRN BLU/WHT ORG/WHT BLU ORG ORG RED BLK…

18, B+ B- REFA- RCA+ A- B+ B- A B A+ OFF ON OFF ON ON OFF ON OFF PWR PWR A B A B RCA+A-B+B- “A” LED flashes when communications are transmitted “B” LED flashes when communications are received 1. At the computer type SN? (it does not matter if it is small or capital letters) then p…

17, 15 8. From the File pull-down menu, select Properties. This will bring up a Properties dialog box. 9. Select the Settings tab. Make the following selections (see ILLUSTRATION 10): Terminal keys Ctrl+H Emulation: Auto Detect Telnet terminal: ANSI Backscroll buffer lines: 500 10.…