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
4
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