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NOTE:
Calibrate the relay before configuring these parameters. Refer to Current Sense Relay
Calibration, page 103. Relays that are not calibrated (or if the relay is not a Current Sense
relay) do not display amperage readings (see relays 37 and 38 in the above figure).
To configure the relay current:
1. Using the arrow buttons, select a minimum or maximum amperage setting.
2. Configure the parameter as required.
NOTE:
The minimum amperage must be greater than the default minimum and the maximum
amperage must be less than the default maximum. For example, relay 35’s amperage must be
more than 2.3 and less than 5.0 amps.
The Nom amperage is the parameter set when calibrating the relay (refer to page 103).
3. Configure the alarm:
o
No: Alarms are not sent in the event of low or high current
o
Yes: Alarms are sent in the event of low or high current
o
No at zero: The controller sends an alarm if the current is low or high, but not if power is
cut off entirely.
4. Configure the voltage: Select 110 or 220 volts.
NOTE:
All relays’ minimum/maximum current settings per equipment type must be within 30% (±) of
the nominal value. However, the augers minimum can go down to 0.0 amperes.
5.10
Farm Thermo-5 / Temperature Curve
Munters Farm Thermo-5 is a five stage digital thermostat that works in conjunction with Farm Premium
Controllers or as a stand-alone unit. When wired to the Farm Premium, you can use the Farm Premium to
set the Farm Thermo-5's stage activation temperatures (which is easier than setting the temperatures on the
Farm Thermo-5 screen). The stage activation temperature determines when cooling and heating
operations take place. Farm Thermo-5 supports a 10 point temperature curve.
Wire the Farm Premium communication card to the Farm Thermo-5's communication card.
Refer to the Farm Thermo-5 manual for details.
1. In Install > Communication, define the expansion device as Dig. Thermostat.
2. In Management > Farm Thermo-5 / Temp. Curve, define the parameters (up to a 10 point
curve).
o
Day: The growth day
o
Temp.: The target temperature for that day.
o
Stage 1 – 5: The temperatures at which heating or cooling starts (read only)
FARM THERMO-5 / TEMPERATURE CURVE
Day
Temp.
Stage 1
HEAT
Stage 2
HEAT
Stage 3
COOL
Stage 4
COOL
Stage 5
COOL
2
31.0
29.0
26.0
33.0
35.0
37.0
5
33.0
31.0
28.0
35.0
37.0
39.0
7
35.0
33.0
30.0
37.0
39.0
41.0
10
37.0
35.0
32.0
39.0
41.0
43.0
FARM THERMO-5 STAGE DIFF
Stage 1
Stage 2
Stage 3
Stage 4
Stage 5
-2.0
-5.0
2.0
4.0
6.0