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RUUD ultra low nox furnaces: Installation and start up
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Question 1 of 5
1. Question
Where do the Y1 and Y2 wires from the thermostat land on the R801V uln furnace
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Question 2 of 5
2. Question
What do Switched 1 and 2 control on the ECM interface board
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Question 3 of 5
3. Question
The RGEA ULN package unit has 2 combustion air filters
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Question 4 of 5
4. Question
1 flash on the CFM board is equal to…
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Question 5 of 5
5. Question
The R, C, G, W, wires bypass the ECM interface board and go directly to the IFC board
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