11 Technical data
Installation manual
38
EWAA011~016DA + EWYA009~016DA
Packaged air-cooled water chillers
and packaged air to water heat pumps
4P620240-1 – 2020.06
English
Translation
M3S
* 3-way valve for floorheating /
domestic hot water
M4S
* Bypass valve kit (for external
backup heater kit)
PC (A15P)
* Power circuit
PHC1 (A4P)
* Optocoupler input circuit
Q2L
* Thermal protector booster heater
Q4L
# Safety thermostat
Q*DI
# Earth leakage circuit breaker
R1H (A2P)
* Humidity sensor
R1T (A2P)
* Ambient sensor of the ON/OFF
thermostat
R1T (A14P)
* Ambient sensor of the dedicated
Human Comfort Interface
(BRC1HHDA used as room
thermostat)
R2T (A2P)
* External sensor (floor or ambient)
R5T
* Domestic hot water thermistor
R6T
* External indoor or outdoor
ambient thermistor
S1L
* Flow switch
S1S
# Preferential kWh rate power
supply contact
S2S
# Electricity meter pulse input 1
S3S
# Electricity meter pulse input 2
S4S
# Smart Grid feed-in
S6S~S9S
* Digital power limitation inputs
S10S, S11S
# Low voltage Smart Grid contact
SS1 (A4P)
* Selector switch
TR1
Power supply transformer
X4M
* Terminal strip (booster heater
power supply)
X8M
# Terminal strip (power supply at
client side)
X9M
Terminal strip (integrated backup
heater power supply)
X10M
* Terminal strip (Smart Grid power
supply)
X*, X*A, X*Y
Connector
X*M
Terminal strip
(5) Option PCBs
(5) Option PCBs
Alarm output
Alarm output
Changeover to ext. heat source
Changeover to external heat
source
Max. load
Maximum load
Min. load
Minimum load
Only for demand PCB option
Only for demand PCB option
Only for digital I/O PCB option
Only for digital I/O PCB option
Options: ext. heat source output,
alarm output
Options: external heat source
output, alarm output
Options: On/OFF output
Options: ON/OFF output
Power limitation digital inputs: 12
V DC / 12 mA detection (voltage
supplied by PCB)
Power limitation digital inputs:
12 V DC / 12 mA detection
(voltage supplied by PCB)
Space C/H On/OFF output
Space cooling/heating ON/OFF
output
SWB
Hydro switch box 1 (front side)
(6) Options
(6) Options
English
Translation
Continuous
Continuous current
DHW pump output
Domestic hot water pump output
Electric pulse meter input: 12 V
DC pulse detection (voltage
supplied by PCB)
Electricity meter pulse input:
12 V DC pulse detection (voltage
supplied by PCB)
Ext. ambient sensor option
(indoor or outdoor)
External indoor or outdoor
ambient thermistor
For cooling mode
For cooling mode
For HP tariff
For preferential kWh rate power
supply
For HV smartgrid
For high voltage Smart Grid
For LV smartgrid
For low voltage Smart Grid
For safety thermostat
For safety thermostat
For smartgrid
For Smart Grid
Inrush
Inrush current
Max. load
Maximum load
MMI
Standalone user interface
(delivered as accessory)
NO valve
Normal open valve
Only for ***
Only for ***
Preferential kWh rate power
supply contact: 16 V DC
detection (voltage supplied by
PCB)
Preferential kWh rate power
supply contact: 16 V DC
detection (voltage supplied by
PCB)
Remote user interface
Dedicated Human Comfort
Interface (BRC1HHDA used as
room thermostat)
Safety thermostat contact: 16 V
DC detection (voltage supplied
by PCB)
Safety thermostat contact:
16 V DC detection (voltage
supplied by PCB)
SD card
Card slot for WLAN cartridge
Smartgrid contacts
Smart Grid contacts
Smartgrid PV power pulse meter Smart Grid photovoltaic power
pulse meter
SWB1
Hydro switch box 1 (front side)
SWB2
Hydro switch box 2 (right side)
WLAN cartridge
WLAN cartridge
(7) External On/OFF thermostats
and heat pump convector
(7) External ON/OFF thermostats
and heat pump convector
Additional LWT zone
Additional leaving water
temperature zone
Main LWT zone
Main leaving water temperature
zone
Only for external sensor (floor/
ambient)
Only for external sensor (floor or
ambient)
Only for heat pump convector
Only for heat pump convector
Only for wired On/OFF
thermostat
Only for wired ON/OFF
thermostat
Only for wireless On/OFF
thermostat
Only for wireless ON/OFF
thermostat
