Operation manual
3
E(D/B)(H/L)Q011~0W1
Unit for air to water heat pump system
4PW57622-1
O
PERATING
THE
DIGITAL
CONTROLLER
Operating the unit comes down to operating the digital controller.
Features and functions
The digital controller is a state of the art controller that offers full
control over your installation. It can control a cooling/heating and a
heating only installation.
Both installations are available in multiple versions which vary in
capacity, electrical supply and installed equipment (with an optional
domestic hot water tank with a booster heater).
Basic controller functions
The basic controller functions are:
■
Turning the unit ON/OFF.
■
Operation mode change-over:
-
space heating (refer to
page 5
),
-
space cooling (refer to
page 5
) (*),
-
domestic water heating (refer to
page 5
) (*).
■
Selection of features:
-
quiet mode (refer to
page 5
),
-
weather dependent control (refer to
page 6
).
■
Temperature set point adjustment (refer to
page 6
).
The digital controller supports a power cut off of maximum 2 hours.
When autorestart is enabled (see
"Field settings" on page 11
) this
allows a power supply shut down of 2 hours without user intervention
(e.g. benefit kWh rate power supply).
Clock function
The clock functions are:
■
24 hour real time clock.
■
Day of the week indicator.
Schedule timer function
The schedule timer function allows the user to schedule the
operation of the installation according to a daily or a weekly program.
Name and function of buttons and icons
1.
COOLING/HEATING ON/OFF BUTTON
y
The ON/OFF button starts or stops the heating or cooling
function of the unit.
When the unit is connected with an external room thermostat,
this button is not operable and the icon
e
is shown.
Pressing the ON/OFF button consecutively too many times may
cause malfunction of the system (maximum 20 times per hour).
2.
OPERATION LED
0
The operation LED is lit during space cooling or space heating
operation. The LED blinks if a malfunction occurs. When the
LED is OFF, space cooling or space heating are inactive while
the other operation modes can still be active.
3.
OPERATION MODE ICONS
hcws
These icons indicate the current operation mode(s): space
heating (
h
), space cooling (
c
), domestic water heating (
w
) or
quiet mode (
s
). Within limits, different modes can be combined,
e.g. space heating and domestic water heating. The
corresponding mode icons will be displayed simultaneously.
In a heating only installation, the
c
icon will never be displayed.
If the domestic hot water tank is not installed, the
w
icon will
never be displayed.
If the solar option is installed and active, the
w
icon will be
blinking.
4.
EXTERNAL CONTROL ICON
e
This icon indicates that an external room thermostat with higher
priority is controlling your installation. This external room
thermostat can start and stop the space heating/cooling
operation and change the operation mode (cooling/heating).
When an external room thermostat with a higher priority is
connected, the schedule timer for space cooling and space
heating will not function.
When the benefit kWh power rate signal is sent, the centralised
control indication
e
will flash to indicate that benefit kWh power
rate is active.
5.
DAY OF THE WEEK INDICATOR
1234567
This indicator shows the current weekday.
When reading or programming the schedule timer, the indicator
shows the set day.
Never let the digital controller get wet. This may cause an
electric shock or fire.
Never press the buttons of the digital controller with a hard,
pointed object. This may damage the digital controller.
Never inspect or service the digital controller yourself, ask
a qualified service person to do this.
NOTE
■
Descriptions in this manual that apply to a specific
installation or that depend on the installed
equipment, are marked with an asterisk (*).
■
Some functions described in this manual may not
be available or should not be available. Ask your
installer or your local dealer for more information
on permission levels.
NOTE
(*) The functions 'space cooling' and 'domestic water
heating' can only be selected when the corresponding
equipment is installed.
NOTE
Remark that pushing the
y
button has no influence
on the domestic water heating. Domestic water
heating is only switched on or off by means of the
v
button.
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17
3
5
6
24
8
13
25
26
11
19
21
14
4
7
9
12
10
22
34
27
28
23
20
33
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31
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30
2
16
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