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
• 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 |
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| DATA | ENABLE | DATA |
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Model 8811 Protocol Adapter |
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Power |
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7.5VAC |
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| BLU/WHT |
| BLU/WHT |
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| ORG/WHT |
| BLU |
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| RED/WHT |
| ORG/WHT |
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| BLK/WHT |
| ORG | ||
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.
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| ORG | ORG/WHT | BLU | BLU/WHT | ORG |
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| ORG/WHT |
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| BLU | |||||
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| BLU/WHT | |
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| GRN/WHT | |
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| A+ A- | B+ B- REF |
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A+ | A |
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A- | ON | OFF |
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| OFF | ON |
B+ | B |
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B- | ON | OFF |
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| OFF | ON |
PWR |
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R |
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C |
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A
B
PWR
A
B
R B- B+ A- A+
A+ A- B+ B- R
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| ORG | ORG/WHT | BLU | BLU/WHT | GRN/WHT |
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| A+ A- | B+ B- | REF |
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A |
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| A |
ON | OFF |
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| OFF | ON | ||
B |
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| B | |
ON | OFF |
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PWR |
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| OFF | ON |
A
B
B- B+ A- A+
DISTRIBUTION PANEL #1 |
| DISTRIBUTION PANEL #2 |
9
