MacroAir Technologies Airvolution Installation Manual - page 19

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MacroAir Technologies Inc.    www.macro-air.com    Toll Free: 866-668-3247    Build: January 9 2009 

F) 

If the fan is turning the wrong way on initial startup, follow the procedure below: 

i) 

Verify that the For-Off-Rev switch is in the For position. 

ii) 

If so, turn the switch to the Off position. 

iii) 

Carefully remove the remote box faceplate with the switches attached and turn 

it over.  Verify that the wiring to the For-Off-Rev switch matches the wiring 

diagram (there should be a sticker inside the remote enclosure).  If it’s wrong, 

correct it and re-test the fan.  Reattach the faceplate (before testing). 

iv) 

If step iii does not solve the problem, turn off the disconnect switch on the MCP 

and snap the small cover off the VFD.  Ensure that the wiring matches the wiring 

diagram — this can be found on the included control panel drawing as well as 

on a sticker inside the control panel door.  If this wiring is wrong, correct it, 

replace the cover, and test the fan again. 

v) 

If step iv does not solve the problem, simply switch any two of the three power 

wires from the MCP to the fan motor, either at the MCP or at the motor.  Turn the 

power back on and re-test the fan. 

vi) 

If none of these steps fix the problem (extremely unlikely,) contact the factory for 

further assistance. 

vii) 

Be sure the remote box is re-assembled and the cover is back on the VFD before 

proceeding. 

G) 

Adjust the speed control to 9 and verify full speed operation with no Fault or Warning 

indicators lit on the VFD.  Contact factory if fault/warning condition occurs. 

H) 

Close up the MCP. 

I) 

Adjust fan speed and direction for desired operation.