Installation & Operation Manual
7 Operating information
Status Display Screens (cont’d)
By using the Previous/Next (, ) arrow keys on the SMART SYSTEM display panel, you can navigate through the 11 display screens. Each screen will contain two (2) viewable items. The following is a description of the individual items and what they can display:
Screen # | Display shows: | Description |
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| The system return sensor acts as the control sensor. The control |
| SYSRTN: ***F (***) | will display the system return temperature as well as the set point in |
Screen #3 |
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Line 2 | SYSRTN: OPEN | The control does not detect the system return sensor. |
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| SYSRTN: SHORTED | The system return sensor wires or the sensor itself has become shorted. |
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Press the Next arrow key on the SMART SYSTEM display to access Screen #4.
N/A
Press the Next arrow key on the SMART SYSTEM display to access Screen #5.
Screen #5
Line 2
STG DEMAND: ****
The control displays the number of stages firing, based upon demand.
Press the Next arrow key on the SMART SYSTEM display to access Screen #6.
Screen #6 | FAN SPEED: *** | The control will display either OFF, LOW, or HIGH depending upon |
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Line 1 | fan speed requirements of number of stages firing. |
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Screen #6 | 0 – 10V RATE: **.*V | The control will display 0 to 10 volts based upon fan speed and unit |
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Line 2 | capacity. |
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Press the Next arrow key on the SMART SYSTEM display to access Screen #7.
Screen #7
Line 1
PH CFH: ***
The control will display either ON or OFF based upon a demand (call for heat) for heat.
Press the Next arrow key on the SMART SYSTEM display to access Screen #8.
Screen #8
Line 1
SYS PUMP: ***
The control will display either ON or OFF based upon system pump requirements upon demand.
Press the Next arrow key on the SMART SYSTEM display to access Screen #9.
Screen #9
Line 1
UNIT PUMP: *** | The control will display either ON or OFF based upon unit pump | |
requirements upon demand. | ||
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UNIT PUMP: DELAY | The control will display delay in unit pump operation after the heat | |
requirements have been satisfied. | ||
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Press the Next arrow key on the SMART SYSTEM display to access Screen #10.
Screen #10 | FLM SIG – A: **.* µA | The control displays the igniter flame signal of igniter A in microamps. |
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Screen #10 | FLM SIG – B: **.* µA | The control displays the igniter flame signal of igniter B in microamps. |
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Press the Next arrow key on the SMART SYSTEM display to access Screen #11.
Screen #11 | IGN * AMPS: *.* A | The control displays the current of either igniter A or B. | |
Line 1 | |||
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Screen #11 | MIX VAL POS: ** % | The control displays the mixing valve percentage open to the system. | |
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