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AER.MIU.HWNEC.GB.01.04/14
SK2014-SON-002-TechMnl-SWC-001
B.2.3.
Air Purging
1.
After connecting the water inlet and outlet pipes to the main supply lines turn on the main breaker and operate the
unit in COOLING mode.
2.
Open the water inlet valve and flood the coil.
3.
Check all connections for water leakage. If no leak is found open the water purge/air vent valve with an open end
wrench and support the unit by hand. Then purge the air trapped inside the coil. When performing this activity,
take care not to touch the electrical parts.
4.
Close the water purge/air vent valve when no bubbles appear.
5.
Open the water outlet valve.
B.2.4.
Wiring Connections
Unit components are wired to the terminal block of the indoor unit. Wiring can be accessed from the terminal block
inside the control box.
B.3.
Pipe Connections with Valve
Complete Assembly
C.
Control Specifications
C.1.
EBWPCGH –EC Complete function FCU Controller
Used in all High-Wall [V/P] ~S unit configurations.
Complete function integrated controller, compatible with IR handset controller, wired wall-pad, serial networking for
master-slave and MODBUS applications.
C.1.1.
Abbreviations
Ts =
Setting temperature
Tr =
Room air temperature
Ti1 =
Chilled water coil temperature
Ti2 =
Hot water coil temperature
AUX1 = Hot water free contact
AUX2 = Chilled water free contact
MTV1 = Chilled Motorized valve
MTV2 = Hot Motorized valve
C.1.2.
Definition of Input/Output
