Daikin EBHQ011BA6V3, Руководство по установке

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E(D/B)(H/L)Q011~0W1
Unit for air to water heat pump system
4PW57621-1A
Installation manual
26
The following table summarizes the required configuration and
thermostat wiring at the terminal block in the switch box. Pump
operation is listed in the third column. The three last columns indicate
whether the following functionality is available on the user interface
(UI) or handled by the thermostat (T):
• space heating or cooling on/off (
y
)
• heating/cooling changeover (
=
)
• heating and cooling schedule timers (
pr
)
Pump operation configuration
Without room thermostat: DIP switch SS2-3=OFF
When no thermostat is connected to the unit, pump operation will be
determined by the leaving water temperature.
To force continuous pump operation when no room thermostat is
connected do the following:
- set toggle switch SS2-3 to ON,
- short-circuit the terminal numbers 1-2-4 on the terminal block
in the switch box.
With room thermostat: DIP switch SS2-3=ON
When a thermostat is connected to the unit, the pump will operate
continuously whenever there is heating or cooling demand requested
by the thermostat.
Dual set point
When dual set point is enabled, the pump operation will be
determined depending on the status of the DIP switch SS2-3 and set
point selection contacts. Refer to the pump operation configurations
when the thermostat is connected or not as described above.
The following table summarizes the required configuration and wiring
at the terminal block (X2M: 1, 2, 4) in the switch box. Pump operation
is listed in the third column. The three last columns indicate whether
the following functionality is available on the user interface (UI) or
handled by the set point selection contacts SP1 and SP2:
• space heating or cooling on/off (
y
)
• heating/cooling changeover (
=
)
• heating and cooling schedule timers (
pr
)
Domestic hot water tank installation configuration
Initial start-up at low outdoor ambient temperatures
During initial start-up and when water temperature is low, it is
important that the water is heated gradually. Failure to do so may
result in cracking of concrete floors due to rapid temperature change.
Please contact the responsible cast concrete building contractor for
further details.
To do so, the lowest leaving water set temperature can be decreased
to a value between 15°C and 25°C by adjusting the field setting
[9-01] (heating set point lower limit). Refer to
"Field settings" on
page 28 .
Thermostat Configuration
Pump
operation
y y y y = = = = p p p pr r r r
No thermostat • SS2-3=OFF
• wiring: (non) determined by
leaving water
temperature
(a)
(a) The pump will stop when space heating/cooling is turned off or when the water
reaches the desired water temperature as set on the user interface. With space
heating/cooling turned on, the pump will then run every 5 minutes during 3
minutes to check the water temperature.
UI UI UI
• SS2-3=ON
• wiring: on when space
heating or
cooling is on
(
y
)
UI UI UI
Heating only
thermostat • SS2-3=ON
• wiring: (see
installation
manual of the
room
thermostat kit)
on when
heating
request by
room
thermostat T — —
Thermostat with
heating/cooling
switch
• SS2-3=ON
• wiring: (see
installation
manual of the
room
thermostat kit)
on when
heating
request or
cooling request
by room
thermostat T T —
NOTE
To set the pump speed, refer to "Setting the pump
speed" on page 27 .
When dual set point is enabled, the "forced continuous
pump operation" is not possible. When SS2-3 is ON while
SP1 and SP2 are both closed, the pump operation will be
the same operation as "with room thermostat" and the
second set point will be the applicable set point. Refer to
"Dual set point control" on page 33 .
X2M
1 2 3 4
X2M
1 2 3 4
Dual set point
Configuration Pump operation
y y y y = = = = p p p pr r r r
• [7-02]=1
• SS2-3=OFF
• wiring: determined by
leaving water
temperature
(a)
(a) The pump will stop when space heating/cooling is turned off or when the water
reaches the desired water temperature as set on the user interface. With space
heating/cooling turned on, the pump will then run every 5 minutes during 3
minutes to check the water temperature.
UI UI UI
• [7-02]=1
• SS2-3=ON
• wiring: on when main or/and
sub set point is
requested SP2/SP1 UI —
SP1 = First set point contact
SP2 = Second set point contact
■
When no domestic hot water tank is
installed, toggle switch SS2-2 should be set to
OFF (default).
■
When a domestic hot water tank is installed,
toggle switch SS2-2 should be set to ON.
When SS2-3 was set to ON without all necessary and
correct wiring connections between indoor unit and switch
box of the domestic hot water tank, the error code
AC
will
be displayed on the user interface.
NOTE Heating between 15°C and 25°C is performed by the
backup heater only.
X2M
SP1 SP2
1 2 3 4
X2M
1 2 3 4
SP1 SP2
4 3 2 1
ON
OFF
4 3 2 1
ON
OFF