Piping Diagram: Indoor Unit - Rotex RHBH04CB3V Installer's Reference Manual

14.2

Piping diagram: Indoor unit

Water side
Field installed
Pump
Water
outlet
Shut-off valve
with drain/fill valve
Manometer
Field installed
Water
inlet
Shut-off valve
with drain/fill valve
LEGEND
Check valve
Flare connection
Spinned pipe
Pinched pipe
RRLQ004~008CA + RHBH/X04+08CB
ROTEX HPSU low temperature Bi‑bloc
4P384979-1C – 2017.04
Air purge
R2T R1T
Safety
valve
Backup heater
Expansion vessel
Filter
Screw connection
Quick coupling
Flange connection
Brazed connection
Refrigerant side
Flow sensor
R4T
Thermistor Description
R4T Inlet water thermistor
R3T Refrigerant liquid side thermistor
R2T Outlet water backup heater thermistor
R1T Outlet water heat exchanger thermistor
14 Technical data
Refrigerant outlet
Refrigerant inlet
Plate heat
exchanger
Evaporator
Condenser
R3T
Refrigerant inlet
Refrigerant outlet
3D088485
Installer reference guide
85