Operation / Technical Manual
NORM-O-TEMP
®
, Model 111W
Page 61 of 82
Membrane control panel
B.
Remove the top of the unit as described in Section 6-1.1.
C.
Position the top of the unit face down on a padded work space.
D.
Using a 5/16 inch wrench, remove the six nuts and star washers on the
edge of the board
E.
Slide off the clear strip cable on the left side of the microprocessor board.
F.
Remove the microprocessor board.
G.
Carefully place the microprocessor board aside. If only the microprocessor
board is to be replaced, go to step K.
H.
To replace the membrane control panel, use a ¼ inch wrench to remove the
six stand-offs and put aside. The control panel is released and falls
outward. Put the control panel aside.
I.
Position the replacement control panel from the face side of the top
assembly so that the screw posts align with the holes, the writing on the
control panel is right side up, and the clear strip connector is on the right
side.
J.
Insert and tighten the six stand-offs
K.
Position the new microprocessor board on the six stand offs so that the LED
display will be face down and the clear strip connector connects to the left
side.
L.
Connect the cable to the 7-pin connector.
M.
Insert and tighten the six nuts and star washers on the edge of the board
and tighten using a 5/16 inch wrench.
N.
Secure the top of the unit as described in Section 6-1.2.
6-17.
Electrical Safety
The NORM-O-TEMP
®
unit should be checked quarterly for electrical safety. It is
appropriate to perform such inspection upon receipt of a new unit prior to acceptance,
and then again during each periodic inspection.