Page No 28 Reznor, Guardian GB GR and GS, Installation Manual, EN 2020-06, D30121 Iss B
C
External temperature offset
This function is accessed by pressing the
SELECT
button
until the display shows
This setting allows the temperature setpoint to be
automatically increased as the external temperature falls
to, or below, zero. For instance, a setting of 4 means a
+4°C offset at 0°C. The maximum offset is 9°C. If this
feature is not required the setting should be
Note:
When more than one air curtain is used, this
feature will only work under the ’ all controllers’ setting.
Example with offset at 9
Temperature limits
This function is accessed by pressing the
SELECT
button
until the display shows and respectively
i.e. maximum and minimum set limits for set temperature.
Use the
+
and
–
buttons to change to the desired limit
temperature settings.
The maximum (default 35°C) may be set anywhere
between the current minimum and 50°C, and the
minimum, (default 16°C) may be set anywhere between
3°C and the current maximum.
To exit the engineers mode press and hold the
SELECT
button for a few seconds.
Keypad sequences
oo4
oo0
Keypad set
temp 20°C
Outside temp
Set point 18°C
Actual outside
temp 0°C
29°C
9°C
24.5°C
-
35
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