Data Sheet for Application

Application Sheet FPB051/
FPB051_H
Fan powered box with series fan on analog output and staged
electric reheater on triac output
DXR2..18-
102A
1/ 6
Technical information in this document are subject to change. Drawings serve illustration purposes only.
Siemens is not responsible for content and any manual modifications.
2021-09-08
A6V10662238_en--_g_--_03
 VAV control with damper on triac output
 Series or parallel fan (supply air), modulating control
 Room temperature control
 2-stage electric reheater with on/off or modulating control
 Room temperature and fan speed operation via KNX PL-Link room operator unit with temperature,
air quality & relative humidity measurement
Plant diagram
DXR2… Room automation station D2 Presence detector
B1 Extract air temperature sensor D4 Over-temperature sensor
B3 Supply air temperature sensor R Room
B4 Differential pressure sensor R1 Room operator unit with
(primary air) temperature sensor
B6 Differential pressure sensor Q1 Variable speed fan
(supply air) YR Electric reheater, 2-stage
D1 Window contact YS Primary air control
Function diagrams Air flow with 2-stage electric reheater
YR Electric reheater 2-stage
VavSuAirFlMaxC
Max. volume, cooling
VavSuAflMinVent
Min. air flow ventilation
VavSuAirFlMinC
Min. volume, cooling
SpC Effective cooling setpoint FanAirFlMaxC Max. fan speed cooling
SpH Effective heating setpoint FanAirFlMinC Min. fan speed cooling
TR Room temperature
FanAirFlMaxH
Max. fan speed heating
V Volumetric flow FanAirFlMinH Min. fan speed heating