8 Technical data
Installation manual
21
EWAQ+005BAVP
Packaged air-cooled water chillers and packaged air to water heat
pumps
4P469106-1 – 2017.01
English
Translation
TR1
Power supply transformer
X*M
Terminal strip
X*Y
Connector
PCB3
Service PCB
M2S
#
Shut-off valve
*:
Optional
#:
Field supply
Control box
English
Translation
(1) Connection diagram
(1) Connection diagram
BUH option
Backup heater option
Control box
Control box
Hydro switch box
Hydro switch box
NO valve
Normal open valve
Only for ext. sensor (floor or
ambient)
Only for external sensor (floor or
ambient)
Only for wired On/OFF
thermostat
Only for wired On/OFF
thermostat
Only for wireless On/OFF
thermostat
Only for wireless On/OFF
thermostat
Option box
Option box
Preferential kWh rate power
supply contact: 5 V DC detection
(voltage supplied by PCB)
Preferential kWh rate power
supply contact: 5 V DC detection
(voltage supplied by PCB)
(2) Notes
(2) Notes
X1M
Main terminal
Earth wiring
15
Wire number 15
Field supply
1
Several wiring possibilities
Option
Wiring depending on model
Switch box
PCB
(3) Control switch box layout
(3) Control switch box layout
(4) Legend
(4) Legend
A3P
*
On/OFF thermostat (PC=power
circuit)
A4P
*
Extension PCB (control, optional)
A5P
User interface PCB
A7P
*
Receiver PCB (wireless On/OFF
thermostat)
M2S
#
Shut-off valve
M4S
*
Valve kit
Q*DI
#
Earth leakage circuit breaker
R1T (A3P)
*
Ambient sensor On/OFF
thermostat
R2T (A3P)
*
External sensor (floor or ambient)
S1S
#
Preferential kWh rate power
supply contact
X*M/K1
Terminal strip
X*Y
Connector
K1A
Relay for heating
K2A
Relay for cooling
*:
Optional
#:
Field supply
Control box option: backup heater
English
Translation
(1) Connection diagram
(1) Connection diagram
BUH option
Backup heater option
Control box
Control box
Only for ***
Only for ***
(2) Notes
(2) Notes
Earth wiring
15
Wire number 15
Field supply
1
Several wiring possibilities
Option
Wiring depending on model
Switch box
PCB
(3) BUH kit switch box
(3) BUH kit switch box
(4) Legend
(4) Legend
F1B
Overcurrent fuse backup heater
K1R
Relay backup heater (step 1)
K2R
Relay backup heater (step 2)
(only for *9W)
K1M
Contactor backup heater (step 1)
K2M
Contactor backup heater (step 2)
(only for *9W)
K5M
Safety contactor backup heater
(only for *9W)
Q*DI
#
Earth leakage circuit breaker
Q1L
Thermal protector backup heater
R2T
Outlet backup heater thermistor
X*M
Thermistor strip
X*Y
Connector
*:
Optional
#:
Field supply
Control box option: option box
English
Translation
(1) Connection diagram
(1) Connection diagram
Alarm output
Alarm output
Control box
Control box
Electric pulse meter inputs: 5 V
DC pulse detection (voltage
supplied by PCB)
Electric pulse meter inputs:
5 V DC pulse detection (voltage
supplied by PCB)
Ext. heat source
External heat source
External indoor ambient sensor
option
External indoor ambient sensor
option
Indoor
Indoor
Max. load
Maximum load
Max. voltage
Maximum voltage
Min. load
Minimum load
Option box
Option box
Power limitation digital inputs: 5
V DC detection (voltage supplied
by PCB)
Power limitation digital inputs:
5 V DC detection (voltage
supplied by PCB)
Space C/H On/OFF output
Space cooling/heating On/OFF
output
(2) Legend
(2) Legend
A4P
Extension PCB (control, optional)
Summary of Contents for EWAQ004BAVP
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