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Cooling, Special Dehumidification
The BK tab and the BK peg jumper provide the industry standard 12% blower speed reduction to "pull
out" additional moisture from the air. Provide an external humidistat between BK and R and pull or
permanently disconnect the BK jumper. With the BK terminal at 0 volts the 12% blower speed reduction
is activated.
Utility Load Control
If applicable for your installation and your utility authorized electric rate, at the bottom of the control
board is a blue wire jumper. Simply remove this jumper and extend the two tabs to the power company
receiver having N.C. logic.
If opposite control logic is required contact factory for other wiring instructions.
Electric Furnace Control –
Room Thermostat Type
On the control board left side is a peg jumper which must be for conventional heat/cool.
Heat Blower Speed Selection
On the right side is a peg jumper for a LO/MED/HI selection. If 1035 CFM is not adequate, jumper E to
W.
10 kW LO 600 CFM
15 kW MED 900 CFM
20 kW HI 1035 CFM
Cool Minimal Blower Speed Selection
At the control board right side is A/B/C/D selection. It is very important that this selection be matched to
the cooling ton installed within the system. This is independent of the heating as outlined and setup
above.
A – 3-3.5 ton 1200 CFM
B – 2.5-3 ton 1100 CFM
C – 2-2.5 ton 1000 CFM
D – 2 ton 900 CFM
Heat Sequencing Board – Inside
Green LED
When illuminated proper 24 volts are available.
Red LED's
Each represents the proper stage on.
HL Red LED
Illuminates with hi-limit and interrupt of electric elements.
02/14/2006
Setup or Programming
Inside View, Right Board
Operation Indicators
11
NI806
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