1-800-409-5438
The following instructions refer to the wiring diagrams on:
1
Verify that the dumbwaiter has a.c. power.
A.
Check the circuit breaker to see if it has been tripped and reset breaker.
B.
Check the overload
“Reset” button, on the side of the controller box, to see if it has popped
out and reset it, if necessary, by pushing it back in.
(for “Reset” location on P-100 & 200 see Page 12)
(for “Reset” location on single phase P-300 & 500 see Page 13)
(the “Reset” on three phase P-300 & 500 is inside the controller)
2
Check for 24 volts a.c. in control box.
A.
Use a volt meter to test the low voltage side of the transformer. Connecting volt meter leads
to the brown and yellow wires should show at least 24V a.c.
B.
Check lighted relays 1 & 2 to see if both relays are lit.
I. If relay 2 is lit and relay 1 is not, go on to step 3.
II. If both are out, check the 2 amp fuse mounted inside the control box on the side. It is best
to remove the fuse and check for burn marks. Replace if blown.
3
Test the safety circuit.
A.
On terminal bar, for 2 stop machines, short out terminals 6 and 7. For 3 and 4 stop machines,
short out terminals 1 and 2.
I. If relay 1 clicks, the safety circuit is not complete, go on to step 4.
II. If relay 1 is lit and does not click, check the connections to the push buttons.
4
Manually moving dumbwaiter car.
A.
Verify all doors are closed and dumbwaiter car is not lower than the bottom floor opening or
higher than the top floor opening.
I. If dumbwaiter car is not vertically out of alignment and still does not function, please call
Powerlift Dumbwaiters, Inc.
II. If dumbwaiter car is vertically out of alignment, use the
“UP” contactor to adjust the car up
or use the
“DOWN” contactor to adjust the car down.
Contactor operation
With 2 stop machines, the contactor will stay in when pressed and the dumbwaiter car will
automatically go to the nearest floor when working properly. If the contactor does not stay in,
there is a low voltage problem. Please call Powerlift Dumbwaiters, Inc.
With 3 & 4 stop machines, the contactor will never stay in. If power is lost while the
dumbwaiter car is between stops, the contactors will work like a momentary contact switch,
and may be used to bump the car up or down to the nearest floor. Once the car is aligned with
an opening, the pc board will be reset and the dumbwaiter should function properly.
USING THE CONTACTORS TO MOVE THE DUMBWAITER CAR BYPASSES THE ENTIRE
SAFETY CIRCUIT. HOLDING THE CONTACTOR IN COULD DAMAGE THE DUMBWAITER
AND/OR CAUSE SERIOUS BODILY INJURY, LOSS OF LIMB, OR DEATH!
WARNING
Page 15 -- for 2-stop single phase machines
Page 16 -- for 2-stop three phase machines
Page 19 -- for 3-stop single phase machines
Page 20 -- for 3-stop three phase machines
