7
7
SOLDER WIRE JUMPER HERE
SELECT BACKLIGHT
MODE (SET JUMPER)
TO DISABLE KEYS LOCALLY
Figure 9
POWER UP
1.
Double check wiring, be sure that there
are
no stray wires or wire strands at the connections.
2.
Connect power to the transformer and system. The display will show all segments for about 5 seconds.
3.
Press the Fan key. The fan should come on. Press the Fan key again. The fan should go off.
4.
Set the Mode to "HEAT". Use the up arrow key to raise the desired temperature setting above the current
temperature. Ensure that the heater unit comes on. Set the mode to "OFF". Ensure that the heat goes off.
5.
Set the Mode to "COOL". Use the down arrow key to lower the desired temperature setting below the
current temperature.
Ensure that the cooling unit comes on. Set the mode to "OFF". Ensure that the
cooling unit goes off.
The RC-80BZ thermostat is designed to work with most 4-wire HVAC systems (without a transformer
common). However, if the RC-80BZ “resets” (goes blank for a second…then displays all segments for about 5
seconds) when calling for heat or cool, or if the heat, cool, or fan relay cannot supply 15mA to power
thermostat without the relay activating, the transformer common wire or the HAI Thermostat Power Supply
Module is required.
If the thermostat or system does not perform as stated above, recheck all wiring -
See
Troubleshooting Tips
.
