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KOOLMASTER PP20-VS2 rev.00
KOOLMASTER PP20-VS2
6.8. Misting Output
The controller can control one misting output.
When the room temperature reaches the start
temperature of the output, mist units are
activated and run in timer mode according to
their minimum timer (Min On Time & Min Off
Time). Then, as temperature rises, a gradual
transition is made from the minimum timer
towards the maximum timer (Max On Time &
Max Off Time). The second mist timer is fully
used when the room temperature reaches the
Maximum Temperature parameter setting.
The misting output is disabled when the
temperature falls below a user-defined value.
It can also stop when humidity levels are too
high (see RH Compensation in chapter 10).
On Time 2
or
Off Time 2
On Time 1
or
Off Time 1
OFF
Mist
Timer
Misting
Output
T°
ON T°
Max T°
OFF T°
Start / stop temperatures:
Operating tem-
peratures of the mist output can either be
related to the set point – which means the
controller automatically adjusts them when
the set point changes – or they can be set
as absolute values. Refer to the Installation
Setup chapter to choose if the output follows
the set point or not (sec. 4.5).
Operating time range:
You can specify a
period of time over which the mist output is
allowed to run. This allows deactivating the
mist output at night for instance.
Mist LED:
The Mist LED located on the
faceplate of the controller tells the status of
misting cycles:
LED is Off: The mist output is off;
LED is On:
“On Time”
of a misting cycle;
LED blinks:
“Off Time”
of a misting cycle.
Select:
1.
Current Conditions (Main Menu)
Start/Stop*
Misting **
Misting Settings
Use to navigate
On Temperature
85.0 °F
Off Temperature
83.0 °F
Minimum On Time
15 sec
Minimum Off Time
900 sec
Maximum Temperature
87.0 °F
Maximum On Time
180 sec
Maximum Off Time
900 sec
Start at
6:00A h:m
Stop at
9:00P h:m
* A password may be required to access this menu.
** This menu is accessible if the misting output is
enabled in the Installation Setup (section 4.5).
Set the following parameters:
2.
On temperature —
Select the temperature at
which the misting output starts.
Off temperature —
Select the temperature
below which the misting output stops.
Minimum On & Off times —
Set the on & off
times of the minimum misting timer.
Maximum Temperature —
Set the tempera-
ture at which the maximum misting timer
if used.
Maximum On & Off times —
Set the on
and the off times of the maximum misting
timer.
Start & stop at —
Specify the period of time
over which the output can run.
6.9. Stir Fans
The controller can control one stir fan output.
This output can operate in 3 different ways:
1. Stir fans in hot temperature conditions:
If the temperature in the room is too high, stir
fans can be enabled to create an air draft to
cool down the animals. When they are used
for this purpose, stir fans start operating con-
tinuously when the room temperature reaches
the output’s start temperature. The output is
disabled when the temperature falls below its
stop temperature (see graph on the right).
2. Stir fans in cold temperature conditions:
When the room temperature is too low, stir
fans can be activated to disperse the warm air
produced by heating units uniformly through-
out the building. When they are used for this
purpose, stir fans start running in timer mode
when the room temperature falls below the
output’s start temperature. They are disabled
when the room temperature rises and reaches
the output’s stop temperature (see graph on
the right).
3. Stir fans used to reduce temperature dif-
ferences between probes:
Stir fans can start running in timer mode when
there is a considerable temperature difference
between the reading of two probes. This func-
tion is used to ensure the uniformity of the
temperature in the house. When they are used
for this purpose, stir fans start running when
the difference of temperature between two
probes exceeds a user-defined temperature
limit; they stop when the temperature differ-
ence between the probes gets 0.5°F (0.3°C)
below the limit (see graph on the right).
Start / stop temperatures:
Operating temperatures of the stir fan output
can either be related to the set point – which
means the controller automatically adjusts
them when the set point changes – or they
can be set as absolute values. Refer to the In-
stallation Setup chapter to choose if the out-
put follows the set point or not (sec. 4.5).
Summary of Contents for Koolmaster PP20-VS2
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