neptronic TFC54F3X1 Fan Coil Thermostat Installation Guide
Fan Coil Thermostat
Specification and Installation Instructions
Step
Display
Description
Set local reheat On/Off or TPM: (If you have selected 2pipe control mode at step #7)
Values
Display switches between “LHt” and “OFF”.
Select which signal output you want for AO2. You can choose OFF (no
signal selected), ON analog heating only, ON analog heating & fan output.
9
Default value: Off
Proportional band range:
If you select OFF (no local reheat), go directly to step #14.
Proportional band for local reheat (AO2):
Display switches between “Pb.L” and the value of the local reheat
proportional band, heating symbol is also displayed.
Please select the desired value of local reheat proportional band.
0.5 to 5.0ºC [1.0 to 10.0ºF]
Increment: 0.5ºC [1.0ºF]
Default value: 2.0ºC [4.0ºF]
10
11
12
Dead band for local reheat (AO2):
Proportional band range:
0.3 to 5.0ºC [0.6 to 10.0ºF]
Increment: 0.1ºC [0.2ºF]
Default value: 0.3ºC [0.6ºF]
Display switches between “db. L” and the value of the local reheat dead
band, heating symbols are also displayed.
Please select the desired value of local reheat dead band.
Go to step #14.
Internal/external temperature sensor selection:
Display switches between “tS” and “in” or “out”.
Please select internal or external sensor.
Default value: Internal
temperature sensor
External temperature sensor Calibration:
Display switches between “tS2” and the temperature read by the external
temperature sensor (if connected).
You can adjust the calibration of the external sensor by comparison with a
known thermometer.
Range: 10 to 40ºC [50 to 104ºF]
(max offset 5ºC)
Increment: 0.1ºC [0.2ºF]
Display:
0ºC [32ºF], resistance will be infinite.
50ºC [122ºF], resistance will be short
circuited.
13
Proportional band 1 in heating:
Proportional band range:
0.5 to 5.0ºC [1.0 to 10.0ºF]
Increment: 0.5ºC [1.0ºF]
Default value: 2.0ºC [4.0ºF]
Display switches between “Pb.1” and the value of the 1st heating
proportional band, heating symbol is also displayed.
Please select the desired value of 1st heating proportional band.
14
15
16
17
Proportional band 1 in cooling:
Proportional band range:
0.5 to 5.0ºC [1.0 to 10.0ºF]
Increment: 0.5ºC [1.0ºF]
Default value: 2.0ºC [4.0ºF]
Display switches between “Pb.1” and the value of the 1st cooling
proportional band, cooling symbol is also displayed.
Please select the desired value of 1st cooling proportional band.
Dead band in heating:
Proportional band range :
0.3 to 5.0ºC [0.6 to 10.0ºF]
Increment: 0.1ºC [0.2ºF]
Default value: 0.3ºC [0.6ºF]
Display switches between “db.1” and the value of the dead band in heating,
heating symbols are also displayed.
Please select the desired value of dead band in heating.
Dead band in cooling:
Proportional band range :
0.3 to 5.0ºC [0.6 to 10.0ºF]
Increment: 0.1ºC [0.2ºF]
Default value: 0.3ºC [0.6ºF]
Display switches between “db.1” and the value of the dead band in cooling,
cooling symbols are also displayed.
Please select the desired value of dead band in cooling.
Minimum position of Ao1 ramp:
Display switches between “Ao.1” and the value of the minimum position of
the Ao1 ramp. MIN symbol is also displayed.
Please select the desired value of the minimum position of the Ao1 ramp.
Range: 0.0 to 10.0 Volt.
Increment: 0.2 Volt.
Default value: 0.0 Volt
18
19
20
(This is the “zero” value)
The minimum value is restricted by the maximum value. (step #19)
Maximum position of Ao1 ramp:
Display switches between “Ao.1” and the value of the maximum position of
the Ao1 ramp. MAX symbol is also displayed.
Please select the desired value of the minimum position of the Ao1 ramp.
Range: 0.0 to 10.0 Volt.
Increment: 0.1 Volt.
Default value: 10.0 Volt
(This is the “span” value)
The maximum value is restricted by the minimum value. (step #18)
Minimum position of Ao2 ramp:
Display switches between “Ao.2” and the value of the minimum position of
the Ao2 ramp. MIN symbol is also displayed.
Please select the desired value of the minimum position of the Ao2 ramp.
Range: 0.0 to 10.0 Volt.
Increment: 0.2 Volt.
Default value: 0.0 Volt
(This is the “zero” value)
The minimum value is restricted by the maximum value. (step #21)
Maximum position of Ao2 ramp:
Display switches between “Ao.2” and the value of the maximum position of
the Ao2 ramp. MAX symbol is also displayed.
Please select the desired value of the minimum position of the Ao2 ramp.
Range: 0.0 to 10.0 Volt.
Increment: 0.1 Volt.
Default value: 10.0 Volt
21
22
(This is the “span” value)
The maximum value is restricted by the minimum value. (step #20)
Set fan speed automatic mode enable or disable:
Display switches between “FAn” and “ena”. Fan symbol is also displayed.
You can enable or disable the Automatic mode adjustment by end user.
If you selected to disable the automatic mode, go directly to step #24
Default value: Enable
Page | 4
| General | Details |
|---|---|
| Name | neptronic TFC54F3X1 Fan Coil Thermostat Installation Guide |
| Make | neptronic |
| Language | English |
| Filetype | PDF (Download) |
| File size | 0.5 MB |
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