4.5.3 Default configuration
The controller's I/O are preconfigured for the following applications:
●
Supply and exhaust fan speed control (with feedback signal 0...10V)
●
Heat exchanger (plate type) with on/off bypass
●
Pre-electric heating coil (modulation control)
●
Contact input for rapid ventilation (Fan boost) and unoccupied operating mode
●
Common alarm output
Pin
Description
BACnet object
Signal type
Note
B1
Outside air temperature
TOa
NTC10k
B2
Supply air temperature
TSu
NTC10k
B3
Exhaust air temperature
TEh
NTC10k
B4
Extract air temperature
TEx
NTC10k
D1
Rapid ventilation input
RpdVntIn
Contact
NO
D2
Input room operating mode unoccupied
UcdOpModRIn
Contact
NO
X1
Supply air fan speed feedback voltage
FanSuSpdFb
0…10V
X2
Exhaust air fan speed feedback voltage
FanEhSpdFb
0…10V
X3
Heating coil overtemperature detector
PreHclOvrTDet
Contact
NC
X8
Supply air temperature after preheating coil
TSuAfPreHcl
NTC10k
Q1
Heat exchanger bypass damper command
HExgDmpBypCmd
Relay
Q2
Common alarm indication output
CmnAlmIndOut
Relay
Q3
Outside air damper command
DmpOaCmd
Relay
A1
Supply air fan speed
FanSuSpd
0…10V
A2
Exhaust air fan speed
FanEhSpd
0…10V
A3
Preheating coil electric position
PreHclElPos
0…10V
A4
None
-
-
Y1
None
-
-
For the peripheral devices, the I/Os are not pre-configured.
Configuration
Configuring the hardware
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