VTR 100B LITE Installation and Service manual v2

Operation
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35
Menu Level 1 Menu Level 2 Menu Level 3 Explanation
Service
Functions
Functions
Heater/Cooler
Heater/Cooler
Preheater: YES/NO
Reheater: None/
Electrical/Water/Other
Cooler: None/Water
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.
Functions
Temp. Control
Temp. control
P-band: 5°C
I-time: OFF
Output: 0–100%
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.
Functions
Exchanger Control
Exchanger control
On/Off / Variable
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).
212962 | v02