A.O. Smith 100 Series, Руководство по обслуживанию

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Servicing should only be performed by a Qualified Service Agent
CONNECTORS PINS TERMINOLOGY DESCRIPTION AND RATING
J7
1 SIPHON Condensation Switch Input.
2 F1 Flapper Switch Input.
3 Not Used
4 SYS_ENABLE Annunciator for System Enable Switch.
5 LGP Annunciator for Low Gas Pressure Switch.
6 HGP Annunciator for High Gas Pressure Switch.
7 Not Used
J8
1 SOLA1_PWR 24VAC Power Input form Terminal Block.
2 SOLA1_S_RTN 24VAC Return Input from Terminal Block.
3 Not Used
4 INLET TEMP Supply for, and signal input from 10K or 12K Ohm NTC Inlet
Temperature sensor. Connects to Pin 2 on Inlet Temperature
Sensor.
5 INLET TEMP Common Ground reference for the Inlet Temperature Sensor. Connects
to Pin 1 on Inlet Temperature Sensor.
6 Not Used
7 Not Used
8 OUTLET TEMP Supply for, and signal input from 10K or 12K Ohm NTC Outlet
Temperature Sensor. Connects to Pin 2 on Outlet Temperature
Sensor.
9 OUTLET TEMP Common Ground reference for the Outlet Temperature Sensor. Connects
to Pins 3 & 4 on Outlet Temperature Sensor.
10 OUTLET TEMP Supply for, and signal input from 10K Ohm NTC Outlet
Temperature Sensor. Connects to Pin 1 on Outlet Temperature
Sensor.
11 Supply for, and signal input from 10K or 12K Ohm NTC
Header Sensor.
12 HEADER - Ground reference for the Header Sensor.
J9
1 Not Used
2 Not Used
3 Not Used
4 STACK TEMP Supply for, and signal input from 10K or 12K Ohm NTC Flue
Sensor. Connects to Pin 2 on Flue Sensor.
5 STACK Common Ground reference for the Flue Sensor. Connects to Pin 3 & 4
on Flue Sensor.
6 STACK TEMP/Heat Exchanger
Unit)
Supply for, and signal input from 10K Ohm NTC Flue Sensor.
Connects to Pin 1 on Flue Sensor.
7 Not Used
J10
1 REMOTE RESET Open/Ground Input that has functionality corresponding to
pushing/releasing the local reset.
2 TOD (Time of Day) Open/Ground Input which switches operating set points.
3 TOD/REMOTE RESET COMMON Ground reference for time of day and remote reset inputs.
4 MODULATION 4 - 20mA (+) (Out) 4 to 20 mA Current modulation signal out into a 600 Ohm.
5 MODULATION 0 - 10 VDC (+) (Out) 0 to 10 VDC Voltage modulation signal out, 10 mA max.
6 MODULATION COMMON (-) Ground reference for voltage and current modulation signals.
7 Not Used
8 Not Used
SPECIAL CONNECTIONS
Flame +
FS + Testpoint for Flame signal. 0 to 10
VDC
Flame -
FS - Testpoint for Flame signal - Ground
reference.