Moyer Diebel 501HT - Manual (Page 74)

64
Digiital Temperature Display Board - 501HT
Service Bulletin
501HTM3, UH200B April 2008
Part # 0512106
Digital
Temperature Display Board
The digital temperature display board does not control temperat
ure, and is not interfaced with the timer board.
The wash display will update every 10 seconds
• The rinse display updates every 20 seconds if the temperature i
s b
elow 170°F
, and every second if the temperature is above 170°F
•
TEST PROCEDURE
1.
Remove the thermistor harness.
The
final
rinse and wash displays should both read “E”.
2.
Press and hold the
final
rinse display test button.
The
final rinse display
should read
179°F - 180°F
.
3.
Press and hold
the wash display test button for a
minimum
of
10 seconds
.
The
wash display
should read
140°F
.
Note:
Temperature readings while testing are displayed in °
F, even if the board is set for °C during the test mode.
4.
If both the wash and
final
rinse displays indicate
specified
temperatures, the temperature display board is operating
properl
y.
Final R
inse
Displa
y
Test Butt
on
W
ash
Displa
y
Test Butt
on
Displa
y
Selec
tor
Swit
ch
°F or °C
Fac
tor
y
U
se
Only
Input
Voltage 120V
AC
Ther
mist
or
Har
ness
Q
uick
Disc
onnec
t
Plug