SystemAir VTR 100/B LITE Installation And Service page 39

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Menu Level 1
Menu Level 2
Service
Functions
Functions
Heater/Cooler
Functions
Temp. Control
Functions
Exchanger Control
212962 | v02
Menu Level 3
Heater/Cooler
Preheater: YES/NO
Reheater: None/
Electrical/Water/Other
Cooler: None/Water
Temp. control
P-band: 5°C
I-time: OFF
Output: 0–100%
Exchanger control
On/Off / Variable
Operation |
Explanation
Use this dialogue frame to set up
the unit for heating and/or
cooling.
Set YES to activate preheater.
Default setting is NO.
Note:
If preheater is activated
and heat exchanger
control is set to "On/Off",
it is highly recommended
to choose defrost level 0
to avoid conflicts with
defrosting functions.
Set Re-heater to None,
Electrical, Water or Other.
Note:
If reheater is set to Other,
external heater is only
controlled by AO1 (0–
10V). Overheat or frost
protection is not
available.
Set Cooler to None or Water.
Use this dialog frame to adjust
the settings of supply air
temperature controller.
Set the proportional band (P-
band) range for PI controller.
Default value 5°C.
Set integral time (I-time) range
for PI controller. Default value
Off.
Shows output signal presented
for the supply air temperature
controller.
Use this dialog frame to select
heat exchanger controller type.
Set On/Off to active
temperature control and
defrosting based on defrost
levels 0–5.
Set Variable to activate
temperature control and
moisture transfer control (if
available).
35

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