Part No. 4801-5338 Rev 2-2015
Evolution 4000
34 of 86
7.6
Natural Ventilation
Natural Ventilation options are:
(1) Allow Natural Ventilation –
Yes or No. This must be
set to yes before the
control is allowed to enter
into natural ventilation.
(2) Current –
This is the value
currently being used
derived from the cool and
warm settings.
(3) Cool –
The desired operational
settings for a cooler
outside temperature.
(4) Warm –
The desired
operational settings for
warm outside conditions
which would be very near
the target temperature.
(5) Temp Diff (In-Out) –
The
Temperature Differential
which is the inside target
minus the outside
temperature.
(6) Cycle Time –
The length of
time in minutes between
the start of one curtain
position adjustment, and
the start of the next curtain
position adjustment.
(A cycle time of 3 means that the curtain will move up or down, or remain stationary depending
upon temperature for its runtime once every 3 minutes).
(7) Initial Drop Delay –
The number of cycles that the curtain will be delayed after the Initial Drop.
(8) Initial Run Time –
When the controller determines that the curtains should run open and senses that
they are closed, it uses this parameter for the 'first' run. This setting is used to allow the curtains to
open enough on the first run to guarantee adequate ventilation.
(9 Open Run Time –
Period of time the curtain will run open each cycle.
(10) Close Run Time –
Period of time the curtain will run close each cycle.
(11) Aggressive Range –
If this Temperature limit is exceeded, the run times of the stages are doubled.
NOTE: If the temperature is at the open setting, the control will run the machine for the runtime
you have set. As the temperature moves up, your runtime will also increase. The runtime may
ramp up to two times the selected Run Time depending on the amount of temperature difference
past the Open or Closed set temperatures. As the temperature gets closer to the Aggressive Range
tolerance, the Run Time gets closer to the maximum two times Run Time. Your runtime will have
doubled once the temperature reaches the set Aggressive Range/tolerance. This is also true for the
close side of the curtain machine.
(12) # -
Identify either Unit #1, Unit #2, Unit #3, or Unit #4.
(13) Sensors –
Identify the sensors used by the controller. This will be the sensor that the curtain machine
will operate from. Active sensors will be indicated by a number starting with #1 from right to left.
Inactive sensors will be indicated by a - or hyphen. When "outside-" is displayed, outside sensor is
active. To use sensors 1,2 and 3, "-----321" should be displayed. See (7).
(14) Mode –
Natural (NAT).
(15) Open –
This will be the temperature at which your curtain will open for natural ventilation.
(16) Close -
This will be the temperature at which your curtain will close from natural ventilation and start
it back to minimum ventilation.
(1)Allow Natural Ventilation = No
(2)
(3)
(4)
Current
Cool
Warm
(5)Temp Diff (In-Out):
( 15° )
30°
5°
(6)Cycle Time
( 2 m )
2 m
3 m
(7)Initial Drop Delay:
(2 cyc)
3 cyc 0cyc
(8)Initial Run Time:
( 42 s)
30 s 60 s
(9)Open Runtime:
( 18 s)
10 s 35 s
(10)Close Runtime:
( 37 s)
41 s 38 s
(11)Aggr Range (+/-):
( 2.6°)
2.0°
5.0°
(12)# (13)SENSORS (14)MODE (15)OPEN (16)CLOSE
U1 --654321 NAT 77.5° 75.0°
U2 --654321 NAT 76.5° 74.0°
U3 --654321 NAT 76.5° 74.0°
U4 --654321 NAT 76.5° 74.0°
Warning:
You have enabled Natural Ventilation by
means of a curtain sidewall. This
setting will affect operation of fans
and heat stages. If this was not the
intention, please reset this setting
to 'Off'.
BACK
When
“Yes” is initially selected,
the following screen will be displayed.
