E(D/B)(H/L)Q011~016BB
Unit for air to water heat pump system
4PW67904-1 – 01.2011
Installation manual
4
Digital I/O PCB kit (option)
An optional EKRP1HB digital I/O PCB can be connected to the unit
and allows:
■
remote alarm output
■
heating/cooling ON/OFF output
■
bivalent operation (permission signal for the auxiliary boiler) or
additional external backup heater permission signal.
Refer to the operation manual of the unit and to the installation
manual of the digital I/O PCB for more information.
Refer to the wiring diagram or connection diagram for connecting this
PCB to the unit.
Bottom plate heater EKBPHTH16A
Room thermostat kit (option)
An optional room thermostat EKRTW, EKRTWA, or EKRTR can be
connected to the unit. Refer to the installation manual of the room
thermostat for more information.
To obtain more information concerning these option kits, please refer
to dedicated installation manuals of the kits.
Connection to a benefit kWh rate power supply
This equipment allows for connection to benefit kWh rate power
supply delivery systems. Full control of the unit will remain possible
only in case the benefit kWh rate power supply is of the type that
power supply is not interrupted. Refer to
"Connection to a benefit
kWh rate power supply" on page 26
for more details.
3.2.
Scope of this manual
This manual does NOT include the selection procedure and the water
system design procedure. Only some precautions and tips and tricks
about the design of the water circuit are given in a separate chapter
of this manual.
Once the selection is done and the water system is designed, this
manual describes the procedures for handling, installing and
connecting the EDH, EBH, EDL and EBL units. This manual has
been prepared to ensure adequate maintenance of the unit, and it
will provide help if problems occur.
3.3.
Model identification
3.4.
Typical application examples
The application examples given below are for illustration purposes
only.
Application 1
Space heating only application with the room thermostat connected
to the unit.
1 Unit
2 Heat exchanger
3 Backup heater
4 Pump
5 Shut-off valve
6 Collector (field supply)
FHL1...3 Floor heating loop (field supply)
T Room thermostat (optional)
UI User interface
Unit operation and space heating
When a room thermostat (T) is connected to the unit and when there
is a heating request from the room thermostat, the unit will start
operating to achieve the target leaving water temperature as set on
the user interface.
When the room temperature is above the thermostat set point, the
unit will stop operating.
Connectable heaters
EKBPHTH16A
EDLQ, EBLQ
Standard
EDHQ, EBHQ
Option
INFORMATION
The operation of the unit is described in the operation
manual.
ED
H
Q
011
BB
6
V3
Power supply:
V3 = 1N~, 230 V, 50 Hz
W1 = 3N~, 400 V, 50 Hz
Backup heater capacity (kW)
Model changes
Indication of heating capacity (kW)
Refrigerant R410A
H = Low water temperature - ambient zone 3
L = Low water temperature - ambient zone 2
ED = Heating only unit
EB = Heat pump unit
NOTICE
Make sure to connect the thermostat wires to the correct
terminals (see
"Connection of the thermostat cable" on
page 25
) and to configure the DIP switch toggle switches
correctly (see
"10.2.
Room thermostat installation
configuration" on page 29
).
FHL1
FHL2
FHL3
T
UI
6
5
4
2
3
1
