Lennox INNOV DM R Series Application Manual page 56

The fan speed has to be selected according to the enclosed table.
In the EC fans the rotation speeds are selected with different values of the control tension (0 - 10V). If in the unit
is present the advanced control the right value of the control tension is set by the keyboard present in the
advanced control.
With the basic control the control tension is set with a manual potential installed in the E-Panel. To know the
tension set with the potential it is necessary to use an external tool (Voltmeter).
9.4 EC fans
tab. 8 AESP (Pa) with the different control tensions (0 - 10 V) for the EC fan(s)
DHADR 201 - 251
Base + Filter
Base + Filter + Heater
Base + Filter + Add coil
Freecooling + Filter
Freecooling + Filter + Heater
Freecooling + Filter + Add coil
DHADR 272 -302 -362 -422 -452
Base + Filter
Base + Filter + Heater
Base + Filter + Add coil
Freecooling + Filter
Freecooling + Filter + Heater
Freecooling + Filter + Add coil
DHADR 602 - 392 - 762
Base + Filter
Base + Filter + Heater
Base + Filtro + Add coil
Freecooling + Filter
Freecooling + Filter + Heater
Freecooling + Filter + Add coil
9.5 Repairing the cooling circuit
While performing repairs on the cooling circuit or maintenance work on the compressors,
make sure the circuit is left open for as less time as possible. Even if briefly exposed to
air, ester oils tend to absorb large amounts of humidity, which results in the formation of
weak acids.
If the cooling circuit has undergone any repairs, the following operations must be carried out:
·
tightness test;
·
evacuation and drying of the cooling circuit;
·
charging with refrigerant.
If the system has to be drained, always recover the refrigerant present in the circuit using suitable
equipment; the refrigerant should be handled exclusively in the liquid phase.
INNOV@ ECFAN DHR -AGU-0912-E
1 V 2 V 3 V 4 V
.. .. .. ..
.. .. .. ..
.. .. .. ..
.. .. .. ..
.. .. .. ..
.. .. .. ..
1 V 2 V 3 V 4 V
.. .. .. ..
.. .. .. ..
.. .. .. ..
.. .. .. ..
.. .. .. ..
.. .. .. ..
1 V 2 V 3 V 4 V
.. .. .. ..
.. .. .. ..
.. .. .. ..
.. .. .. ..
.. .. .. ..
.. .. .. ..
5 V 6 V 7 V 8 V
11,5 92,5 173,5 254,5
.. 49,6 130,6 211,6
.. 64,4 145,4 226,4
.. 47,3 128,3 209,3
.. 4,3 85,3 166,3
.. 19,1 100,1 181,1
5 V 6 V 7 V 8 V
15,9 96,9 177,9 258,9
.. 58,7 139,7 220,7
.. 72,4 153,4 234,4
.. 76,5 157,5 238,5
.. 38,3 119,3 200,3
.. 52,0 133,0 214,0
5 V 6 V 7 V 8 V
10,0 91,0 172,0 253,0
.. 52,8 133,8 214,8
.. 68,2 149,2 230,2
.. 43,1 124,1 205,1
.. 4,9 85,9 166,9
.. 20,0 101,0 182,0
9 V 10 V
335,5 416,5
292,6 373,6
307,4 388,4
290,3 371,3
247,3 328,3
262,1 343,1
9 V 10 V
339,9 420,9
301,7 382,7
315,4 396,4
319,5 400,5
281,3 362,3
295,0 376,0
9 V 10 V
334,0 415,0
295,8 376,8
311,2 392,2
286,1 367,1
247,9 328,9
263,0 344,0
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