Electrical Heater (Hclel21Y) - Siemens Climatix S300 HRV Application Manual

5.10.2 Electrical heater (HclEl21y)

Available parameters
A6V10733786_en_c
After ERC has reached its full output but TSu setpoint is not reached, electrical
heating coil can be activated and controlled as second heating sequence to raise
the supply air temperature TSu.
Safety functions
Some electric heaters include an output for an overheating safety thermostat. The
input for receiving this information can be activated on the controller and after the
active signal, the electrical heater is turned off and the ventilation unit is turned off.
The fan speed must be above the set minimum speed to activate the electric
heater.
The overtemperature detector must be connected to the electric heater via
hardware unless local regulations allow software interlock.
It can be selected whether the fans must be stopped immediately after the safety
thermostat has been triggered or whether the fans may run for at least the delay
time for the cooldown of the electric heaters (see also
Start-up / shut-down sequence [➙ 130]).
Current value
Current supply air temperature setpoint for heating
Electrical heater output signal
Prio2: Fire / Smoke
Prio5: Protection
Over temperature detection
Basic settings
Enable electric heating coil
Fan switch-off delay
Minimum heater output before fan switch off delay is
activated
Special settings
Heater Kp
Heater Tn
Pulse period electrical heater
Minimum switch on time
Application functionalities
BACnet object
SpTSuHcl
AVAL,211
HclElPos
AO,64 (Y1)
AO,107 (A1)
AO,116 (A2)
AO,125 (A3)
AO,134 (A4)
AVAL,386 (POS9)
AVAL,475 (AO1)
AVAL,482 (AO2)
HclOvrTDet
BI,112 (X3)
BI,129 (A1)
BI,78 (D1)
BI,95 (D2)
BACnet object
EnHclEl
BVAL,197
DlyOffAflHldH
PINTVAL,107
SwiOnAirFlHldH
AVAL,213
BACnet object R/RW
GainHclTSuCtrH RW
AVAL,214
TnHclTSuCtrH RW
AVAL,108
HclElPlsPrd (Y1) RW
PINTVAL,617
HclElTiOnMin (Y1) RW
PINTVAL,618
5
Heating
R/RW Note
RW °C
RW %
R
R/RW Note
RW
RW s
RW %
Note
% / K
sec.
BACnet property
4984
BACnet property
4994
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