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7. HEAT RECOVERY WITH 3 STEPS PREHEATER
Scenario
Heat Recovery with 3 Steps Pre Heater mode works according to set temepareture and control exhaust ans supply fans and
pre heater. Pre-heater works according to fresh air sensor.
•
The fresh air temperature read by NtC10K sensor will be compared with set value of pre-heater to open or
shut down pre-heater.
Notes;
The electrical board comes with Scenario Number 4 as default.
To change the scenario please follow the steps defined in ''S.Changing the Scenarios''
Default Values for Pre Heater;
Parameter
Description
152
Pre Heater Hysterises Value
153
Pre Heater Step Difference as Temperature
160
Pre Heater Set Temperature
When Scenario 7 is selected , unit is ready to work as Heat Recovery with 3 Steps Pre heater .
The connection of the fresh air temperature sensor and the pre-heater should be done to the electrical board.
Below parameters should be set from the service parameters menu. Please follow the instructions described at
''I: Entering to Service Menu'' to enter Service Menu
Parameter
Description
154
Pre Heater Step Quantity
422
After Heater Relay Selection
423
Pre Heater Relay Selection
Please contact For Scenarios with heat pump , EC fan, DX Coil and
water coil ...
Default Value
Detail
Shows 20 on the screen
2
ºC
Shows 50 on the screen
5
ºC
Shows 50 on the screen
5
ºC
Value
Detail
3
0
1
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