Installation manual
3
EKHBH/X008BB
Indoor unit for air to water heat pump system
4PW62570-1A – 01.2011
3.
I
NTRODUCTION
3.1.
General information
Thank you for purchasing this indoor unit.
The unit is the indoor part of the air to water ERHQ or ERLQ heat
pumps. This unit is designed for wall mounted indoor installation. See
"6.1. Selecting an installation location" on page 13
. The unit can be
combined with Daikin fan coil units, floor heating applications, low
temperature radiators, Daikin domestic water heating applications
and Daikin solar kit for domestic hot water applications.
For installations with restricted power supply, the indoor unit can be
configured to limit the power consumption.
There are 2 possibilities to limit the power consumption:
■
allow simultaneous operation of outdoor unit and backup heater
only or outdoor unit and booster heater only by priority setting
[4-01] (see
"[4] Backup/booster heater operation and space
heating off temperature" on page 28
),
■
allow operation of backup heater only, booster heater only or
outdoor unit only (see
) by [d-02] (see
"[d] Restricted power supply condition mode/Local shift value
weather dependent" on page 55
Heating/cooling units and heating only units
(1)
The unit range consists of two main versions: a heating/cooling
(EKHBX) version and a heating only (EKHBH) version.
Both versions are delivered with an integrated backup heater for
additional heating capacity during low outdoor temperatures. The
backup heater also serves as a backup in case of malfunctioning of
the outdoor unit. The backup heater models are available for a
heating capacity of 3, 6 and 9 kW, and – depending on the heating
capacity – for three different power supply specifications.
1
Heat pump capacity
2
Required heating capacity (site dependent)
3
Additional heating capacity provided by the backup heater
4
Equilibriumtemperature (can be set through the user
interface, refer to
"8.9. Field settings" on page 26
T
A
Ambient (outdoor) temperature
P
H
Heating capacity
Domestic hot water tank (option)
(2)
An optional domestic hot water tank can be connected to the indoor
unit. The domestic hot water tank is available in 2 types:
■
tank with built-in electrical booster heater (EKHW*) in 3 different
sizes: 150, 200 and 300 litre,
■
tank without electrical booster heater (EKHTS) in 2 different
sizes: 200 and 260 litre.
Refer to the domestic hot water tank installation manual for further
details.
WARNING
■
Never directly touch any accidental leaking
refrigerant. This could result in severe wounds caused
by frostbite.
■
Do not touch the refrigerant pipes during and
immediately after operation as the refrigerant pipes
may be hot or cold, depending on the condition of the
refrigerant flowing through the refrigerant piping,
compressor, and other refrigerant cycle parts. Your
hands may suffer burns or frostbite if you touch the
refrigerant pipes. To avoid injury, give the pipes time to
return to normal temperature or, if you must touch
them, be sure to wear proper gloves.
CAUTION
Do not rinse the unit. This may cause electric shocks or
fire.
INFORMATION
All information and settings in the manual are applicable for
all applications,
except
the chapters with following footnote
indication:
"When the unit is configured for restricted power
supply condition mode, see
"
.
NOTICE
Restricted power supply condition mode can only be used
for a tank with built-in electrical booster heater (EKHW*).
(1) When the unit is configured for restricted power supply condition mode,
see
.
Indoor unit model
Backup heater capacity
Backup heater
nominal voltage
EKHB*008BB3V3
3 kW
1x 230 V
EKHB*008BB6V3
6 kW
1x 230 V
EKHB*008BB6WN
6 kW
3x 400 V
EKHB*008BB9WN
9 kW
3x 400 V
EKHB*008BB6T1
6 kW
3x 230 V
EKHB*008BB9T1
9 kW
3x 230 V
(2) When the unit is configured for restricted power supply condition mode,
see
.
T
A
4
3
1
2
P
H
