HVAC Automation Model 8800 Communicating Thermostat System Installation Manual READ AND SAVE THESE INSTRUCTIONS
COMMUNICATING THERMOSTAT SYSTEM INSTALLATION MANUAL This manual will guide the installer through the installation, wiring and checkout of an Aprilaire® Model 8800 Communicating Thermostat System. For a complete command set with programming suggestions, see the programming manual (Part No. 10009414). Please visit www.aprilairepartners.com/docs/literature for this document. TABLE OF CONTENTS Collect the components needed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
COLLECT THE COMPONENTS NEEDED Tools neeDED Wire neeDED • Small flat head screwdriver for terminal screws (1/8” wide tip). • Multi-conductor thermostat cable (18–20 gauge). • Medium size flat/phillips head screwdriver for component mounting screws. • Category 5 communication wire (4 pair twisted cable). • Volt/ohm meter. • Computer with available com port (RS-232) and terminal emulator such as HyperTerminal (for system checkout). • Wire strippers.
Model 8051, 8052 and 8053 Remote Temperature Sensors (Optional) These sensors can be used directly with the Model 8800 thermostat or with support modules. Model 8051 Flush Mount Sensor Model 8052 Outdoor Temperature Sensor Model 8053 Wall Mount Sensor FOR EASE OF INSTALLATION AND TROUBLESHOOTING DO THE FOLLOWING: • Use Category-5 cable for all communication wiring. • Check and recheck to ensure connection to the proper terminals before powering up the thermostats.
RUN THE REQUIRED WIRES and Mount the System Components 1. Determine component locations. 2. Run and label wires. Use FIGURE 1 for selecting wire type. 3. Mount components as specified in each product’s installation instructions.
Figure 2 – Network Interconnection Worksheet Fill Out and Leave with System Software Package JOB TITLE: JOB LOCATION: DATE: INSTALLING CONTRACTOR: CAT-5 WIRE LOCATION ADDRESS DISTRIBUTION PANEL LOCATION / NAME CAT-5 WIRE CAT-5 WIRE LOCATION ADDRESS CAT-5 WIRE LOCATION ADDRESS LOCATION ADDRESS CAT-5 WIRE CAT-5 WIRE LOCATION ADDRESS LOCATION ADDRESS CAT-5 WIRE CAT-5 WIRE CAT-5 WIRE TO DISTRIBUTION PANEL LOCATION ADDRESS 6 LOCATION ADDRESS
CONNECT THE CONTROL WIRES TO THE HVAC/ZONE SYSTEM AND THERMOSTATS A qualified HVAC technician should perform this step to ensure proper termination. Figure 3 – Conventional Heat /Cool 1. Make sure the HVAC system power is off.
CONNECT THE COMMUNICATION AND POWER WIRES TO THE DISTRIBUTION PANEL AND THERMOSTAT 1. MAKE SURE THAT ALL SWITCHES ON THE DISTRIBUTION PANEL ARE OFF! 2. Connect the communication wires. FIGURE 6 shows how each thermostat is to be wired to the distribution panel. • Use the wire colors shown in FIGURE 6 to help ensure proper, consistent connections. 3. Use a Model 8029 24VAC transformer or equivalent to power each distribution panel.
CONNECT MULTIPLE DISTRIBUTION PANELS 1. MAKE SURE THAT ALL SWITCHES ON THE DISTRIBUTION PANELS 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 FIGURE 7 to help ensure proper, consistent connections. 3. Power each distribution panel with a separate Model 8029 24VAC transformer or equivalent 40VA 24VAC transformer.
CONNECT PROTOCOL ADAPTER TO THE DISTRIBUTION PANEL AND HOST COMPUTER OR AUTOMATION SYSTEM 1. MAKE SURE THAT ALL SWITCHES ON THE DISTRIBUTION PANEL ARE OFF! 2. Use Category-5 wire to connect the main communication terminals on the Distribution Panel to the “Breakout Adapter” of the protocol adapter (see FIGURE 8). 3. Connect the RS-232 cable from the protocol adapter to the computer or automation system. A 3 ft. RS-232 cable is provided.
CHECK-OUT HVAC SYSTEM OPERATION Use the thermostat to verify that the equipment is being controlled. A checkout procedure is supplied in the installation instructions with the thermostat. This procedure will verify only that the thermostat operates the equipment. Communication system checkout will be performed next. Set thermostat address and total number of thermostats IMPORTANT! THESE STEPS MUST BE DONE AT EACH THERMOSTAT FOR COMMUNICATION TO WORK PROPERLY. 1.
SETUP COMPUTER FOR COMMUNICATION SYSTEM CHECKOUT REQUIREMENT: HyperTerminal software and a PC with a serial port or usb to serial port adapter. 1. Connect the Protocol Adapter RS-232 output to a computer with Windows ’95, ’98, Windows 2000, Windows NT, or XP. Note: Newer Windows systems may not include HyperTerminal. 2. From the Start menu, select PROGRAMS ACCESSORIES COMMUNICATION HYPERTERMINAL.
4. This will bring up a Connect to dialog box. From the pull down next to “Connect using:”, select the Com port to which the Protocol Adapter is connected (see FIGURE 11). Start with Com port 1 (or the next lowest available number) if you are unsure which one to use. Click OK. Figure 11 – Select Com Port 5. A COM1 Properties dialog box should appear.
6. From the File pull-down menu, select Properties. This will bring up a Properties dialog box. Figure 14 – ASCII Setup 7. Select the Settings tab. Make the following selections (see FIGURE 13): Terminal keys Ctrl+H Emulation: Auto Detect Telnet terminal: ANSI Backscroll buffer lines: 500 Figure 13 – Terminal Settings 9. Click OK to put away both dialog boxes. 10. Verify that you have a connection between the computer and the Protocol Adapter.
CHECK-OUT COMMUNICATIONS TO THE THERMOSTAT NETWORK This section confirms communications to each thermostat and each thermostats network address. 1. At the distribution panel turn on the communication switches A and B for the thermostat with address#1 (see FIGURE 15). 2. At the Hyperterminal program type: SN ID? and press Enter. You should see response: SN1 MODEL# 8800 VER: x.xxx - RPC 2011 (x.
APPENDIX 1 – SPECIAL CONSIDERATIONS FOR INSTALLING THE MODEL 8800 WITH THE 8870 COMMUNICATING THERMOSTAT WARNING When replacing an 8870 Thermostat with the model 8800 Thermostat these additional steps are required in order for proper operation. 1. The 8800 Thermostat cannot be powered from an 8818 Distribution Panel. The 8800 Thermostat must be powered from a separate 24VAC transformer. 2. The Model 8800 thermostat must be set to non-programmable mode to be used in a 8870/8818 system. 3.
APPENDIX 2 – SENSOR AVERAGING This is an option for sensor averaging that does not require support modules. This option can only be used with a specific number of sensors (4 or 9). Figure 17 MODEL 8800 THERMOSTAT R R B+ A+ B- A- C B O Y Y2 G RC RH W2 W R S2 S1 T1 T2 RSB RSA W W W R R W R R W R R W W W S1 S2 S3 S4 2-WIRE THERMOSTAT CABLE (R=RED, W=WHITE) FOUR SENSOR TEMPERATURE AVERAGING – WIRING T1 WIRING SHOWN USING MODEL 8051 FLUSH MOUNT SENSORS.
P.O. Box 1467 • Madison, WI 53701-1467 • Phone: 800/334-6011 • Fax: 608/257-4357 • www.aprilairepartners.com 10009416 1.14 B2205497D Printed in U.S.A.
