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Both versions are delivered with an integrated backup heater for
additional heating capacity during cold outdoor temperatures. The
backup heater also serves as a backup in case of malfunctioning of
the unit and for freeze protection of the outside water piping during
winter time. The backup heater factory set capacity is 6 kW, however,
depending on the installation, the installer can limit the backup heater
capacity to 3 kW/2 kW. The backup heater capacity decision is a
mode based on the equilibrium temperature, see scheme below.
P
H
3
1
Heat pump capacity
2
Required heating capacity (site dependent)
3
Additional heating capacity provided by the backup heater
4
Equilibrium temperature (can be set through the user interface,
refer to
"Field settings" on page
T
Ambient (outdoor) temperature
A
P
Heating capacity
H
Domestic hot water tank (option)
An optional EKHW* domestic hot water tank with integrated
3 kW electrical booster heater can be connected to the indoor
unit. The domestic hot water tank is available in three sizes: 150,
200 and 300 litre. Refer to the domestic hot water tank
installation manual for further details.
Solar kit for domestic hot water tank (option)
For information concerning the EKSOLHW solar kit, refer to the
installation manual of that kit.
Digital I/O PCB kit (option)
An optional EKRP1HB digital I/O PCB can be connected to the
indoor unit and allows:
remote alarm output
heating/cooling ON/OFF output
bivalent operation (permission signal for the auxiliary boiler)
Refer to the operation manual of the indoor 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 (option)
Remote thermostat kit (option)
An optional room thermostat EKRTW, EKRTWA, or EKRTR can
be connected to the indoor 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.
E(D/B)(H/L)Q011~016BA6V3+W1
Unit for air to water heat pump system
4PW57621-1A
1
2
T
4
A
28)
Operation range
Heating mode
A
°C DB
35
0
–15
–20
–25
5
15
25
40
A
Outdoor temperature
B
Leaving water temperature
No heat pump operation, back up heater only (V3 and W1 models)
No heat pump operation, back up heater only (for V3 models only)
Operation possible, but no guarantee of capacity (for W1 models only)
(*)
- E(D/B)L* units include special equipment (insulation, heater
sheet, ...) to ensure good operation in areas where low ambient
temperatures can occur together with high humidity conditions. In
such conditions the E(D/B)H* units may experience problems with
severe ice build-up on the air-cooled coil. In case such conditions
are expected, the E(D/B)L* units must be installed instead.
- Both E(D/B)L* and E(D/B)H* units have a freeze prevention
function using the pump and backup heater to keep the water
system safe from freezing in all conditions. In case accidental or
intentional power shutdown is likely to happen, we recommend to
use glycol.
(**)
Only for E(D/B)L* units
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
kWh rate power supply" on page 23
Scope of this manual
This installation manual describes the procedures for installing and
connecting all EDH, EBH, EDL and EBL outdoor unit models.
Model identification
ED
H
Q
011
BA
Indication of heating capacity (kW)
Refrigerant R410A
H = Low water temperature - ambient zone 3
L = Low water temperature - ambient zone 2
ED = Monoblock outdoor heating only
EB = Monoblock outdoor heat pump
(a) For exact values, refer to
"Technical specifications" on page
Cooling mode
A
°C DB
46
10
(
)
*
B
°C
5
22
(
)
**
B
°C
55
"Connection to a benefit
for more details.
6
V3
Power supply:
V3 = 1~, 230 V, 50 Hz
W1 = 3N~, 400 V, 50 Hz
Backup heater capacity (kW)
Model changes
(a)
43.
Installation manual
2
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