SVC 810 Tankless Troubleshooting Manual
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53XP 3.46 + fan pressure (max.) 0.55 + fan pressure (min.)
53XN 2.83 + fan pressure (max.) 0.49 + fan pressure (min.)
53DVP 3.01 + fan pressure (max.) 0.37 + fan pressure (min.)
53DVN 2.95 + fan pressure (max.) 0.39 + fan pressure (min.)
74DVP 7.28 + fan pressure (max.) 1.15 + fan pressure (min.)
74DVN 2.36 0.42 + fan pressure (min.)
Program Chip Adjustment
To quickly establish someone’s altitude with zip code use the
following link. Type the zip code in the upper left hand corner and
hit enter, it will bring up current weather conditions and include
the altitude.
http://www.wunderground.com/
When the water heater is installed above
3,280 feet, adjustment of the Program Chip is
required. Without adjusting the Program
Chip, the water heater may not function
properly. If the water heater is installed less
than 3,280 feet, no Program chip is required
or supplied and no action is necessary. A
different Program chip is required for every
3,280 feet. The Program chip is not
interchangeable between Indoor and
Outdoor models or types of gas.
1. Check the altitude (above sea level) where the water heater is installed.
2. Ensure that you have the correct Program chip for proper model, gas type and altitude.
3. Disconnect the electric power to the water heater. Turn off the gas shutoff valve and
water shutoff valve.
4. Remove the front cover.
5. Place Program Chip as shown on PCB.
6. Turn on the electric power.
7. Find the DIP Switch #1 and #2 located at the top left hand side of the PCB.
8. Change the DIP Switch #1 and #2 setting to the "ON" position. DO NOT alter any other
DIP Switch.
9. The LED on the PCB is flashing. At the same time, the display of the remote control
starts to flash.
10. Find the Adjusting Button located at the top left hand side of the PCB.
11. Press the Adjusting Button on the PCB. The display of the PCB and the remote control
changes from "Flashing" to "Illuminating".
12. Change the Dip Switch #1 and #2 setting to the "OFF" position. DO NOT alter any other
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