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OPERATION
IMPORTANT NOTES:
Each of the following programming functions is separated
into specific procedures for each model.
Detailed flow charts showing the screen layout of the LCD
controller for both slanted and horizontal models are available
in this section of this manual.
Display
(Main Screen
shown)
Up Arrow
Key
Down Arrow
Close-Up View of LCD Controller
NOTE: Inactivity for five seconds at any level of programming
will cause the LCD controller to save the current
parameters and return to the Main screen.
Changing Shelf Setpoint Temperature and
Operating Mode
Use one of the following procedures to change the setpoint
temperature for the hardcoat shelf heating elements (front and
rear) as well as the operating mode for each shelf.
If necessary, refer to "Theory of Operations" at the beginning
of the OPERATION section for a description of each operating
mode.
NOTE: Press and hold the
time during programming to save settings and return to
the Main screen.
Horizontal and Slanted Single Shelf Models
1. From the Main screen, press the
Lower Shelf Setpoint screen will appear:
L
w
r
S
• Press the
key to increase setpoint value.
• Press the
key to decrease setpoint value.
2. Press the
key. The Lower Shelf Zones screen will
appear and show the active operating mode:
L
w
r
S
S
e s o s
n
• Press the
or
modes. There are three available operating modes:
L
w
r
S
h
e
l
f
Z
o n e s
S
e s o s
n
r
ON
L
w
r
S
h
e
l
f
Z
o n e s
S
e s o s
n
r
OF F
L
w
r
S
h
e
l
f
Z
o n e s
L i
g
h
t
s
On
l
y
Enter
Key
Key
key for three seconds at any
+
keys. The
h
e
l
f
h
e
l
f
Z
o n e s
r
ON
key to toggle between operating
Sensor-activated,
zone-specific
operation.
All elements on full-time.
Lights only. No heat.
3. Wait five seconds, or press and hold the
seconds to save the desired setting and return to the Main
screen.
• The Parameters Saved screen will appear to confirm the
changes, and the display will return to the Main screen:
P a
r
S a
v
Horizontal and Slanted Dual Shelf Models
1. From the Main screen, press the
Lower Shelf Setpoint screen will appear:
L
w
r
• Press the
key to increase setpoint value.
• Press the
key to decrease setpoint value.
2. Press the
key. The Lower Shelf Zones screen will
appear and show the active operating mode:
L
w
r
S
e s o s
n
• Press the
or
modes. There are three available operating modes:
L
w
r
S
h
e
l
f
Z
o n e s
S
e s o s
n
r
ON
L
w
r
S
h
e
l
f
Z
o n e s
S
e s o s
n
r
OF F
L
w
r
S
h
e
l
f
Z
o n e s
L i
g
h
t
s
On
l
y
3. Press the
key. The Upper Shelf Setpoint screen will
appear:
U p
p
• Press the
key to increase setpoint value.
• Press the
key to decrease setpoint value.
4. Press the
key. The Upper Shelf Zones screen will
appear and show the active operating mode:
U p
p
S
e s o s
n
• Press the
or
modes. There are three available operating modes:
U p
p
r
S
h
e
l
f
Z
S
e s o s
n
r
ON
U p
p
r
S
h
e
l
f
Z
S
e s o s
n
r
OF F
U p
p
r
S
h
e
l
f
Z
L i
g
h
t
s
On
l
y
12
English
a
m
e
t
e
r
s
e
d
+
S
h
e
l
f
S
h
e
l
f
Z
o n e s
r
ON
key to toggle between operating
Sensor-activated,
zone-specific
operation.
All elements on full-time.
Lights only. No heat.
r
S
h
e
l
f
r
S
h
e
l
f
Z
o n e s
r
ON
key to toggle between operating
Sensor-activated,
o n e s
zone-specific
operation.
o n e s
All elements on full-time.
o n e s
Lights only. No heat.
Form No. HZMM-1116
key for three
keys. The
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