Fujitsu Waterstage DHW Series Operating Instructions Manual
U0651601_2010_EN_1
24/06/2019
OPERATING INSTRUCTIONS
Air to Water Heat Pump
Split single service & Split integrated DHW type
For users. To be kept by the user for future reference.
EN
Contents
Safety instructions 3
Overview of installation 4
Precautions and warnings about your installation ..4
Appliance end-of-life .......................5
Overview of the installation ..................5
Carrying out the installation 6
User interface, Room control unit (option) and
Room thermostat (option) ...................6
Display Description ........................8
Appliance start up .........................9
Quick start-up ............................9
Setting the time ..........................10
Structure of the "End user" control menu ......11
Parametering the setting ...................12
Information display .......................17
Details .................................18
Operation of the DHW system* ..............18
Selecting cooling mode* ...................18
Pilot wire* (if kit regulation extension AVS 55) ...18
Telephone modem* (if Regulation extension kit
AVS 55) ................................19
Conguring room control unit* (option) ........19
Maintenance 20
Regular checks ..........................20
Checking the outdoor unit ..................20
Hot water tank* ..........................20
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Waterstage / OPERATING INSTRUCTIONS / 2010 - EN
Safety instructions
Please comply with the following instructions in order to avoid any risk of injury or
inappropriate use of the appliance.
Commissioning
Do not switch the appliance ON until every lling operation has been performed
Do not attempt to install this appliance yourself. This heat pump must be installed by
qualied personnel holding a certicate of competence.
The installation must always be properly earthed and tted with a safety circuit breaker.
Do not change the power supply.
The appliances are not reproof and should not therefore be installed in an explosive
environment.
How to Use
This appliance can be used by children 8 years and above. Also persons with reduced
physical, sensory or mental capabilities, or lack of experience and knowledge, provided
they have been given supervision or instruction concerning use of the appliance in a safe
way and with the appliance. Cleaning and user maintenance shall not be made by children
without supervision.
Do not let children insert foreign bodies inside the propeller protection grate or climb onto
the roof of the outdoor unit. The ns of the air heat exchanger are extremely thin and can
cause cuts.
Nothing should obstruct the air circulation through the evaporator and out from the fan.
The outdoor unit must only be installed outside. If a shelter is required,it must have broad
openings on all 4 sides and installation clearances must be observed (see your installation
engineer).
Do not climb on top of the outdoor unit.
The room in which the unit is operating must be correctly ventilated in order to avoid any
shortage of oxygen in the event of a refrigerant gas leak.
If your installation location already meets safety standards, do not carry out any
modications (ventilation, exhaust evacuation, openings, etc.) without the advice of your
installation engineer.
Do not place any heat source under the remote control.
Maintenance
Do not try to repair the appliance yourself.
This appliance does not contain any components which can be repaired by the user.
Removing either of the covers can expose you to dangerous electrical voltages.
In any case, switching o the current is not sucient to protect you from any external
electrical shocks (condensers).
Do not open the outdoor unit or the hydraulic unit while they are in operation.
If you hear unusual noises, smell smoke or other odours coming from the appliance, turn
o the power and contact your installation engineer.
Before starting any cleaning, turn o the power to the appliance.
Do not use aggressive cleaning liquids or solvents to clean the body work.
Do not use a pressure hose to clean the outdoor unit. You may damage the air exchanger
and get water inside the electrical circuits.
Overview of installation
Precautions and warnings about
►
your installation
Outdoor unit
▼
The outdoor unit contains the equipment that enables
the capture of energy from the surrounding air.
This unit was installed by your installer in a location
where it is able to operate with best performance.
Nothing should obstruct the air circulation through the
evaporator and out from the fan.
The water contained in the air may condense and ow
out of the outdoor unit. The outdoor unit can generate a
large volume of water called condensate.
In cold weather, this water freezes on contact with the
exchanger and must be regularly removed using the
defrosting cycles. The defrosting cycle is managed
automatically by the control system and can produce
steam emissions which are completely normal.
Hydraulic unit
▼
The hydraulic unit contains the appliance's control
system which manages the room temperature and the
production of domestic hot water.
The hydraulic unit is tted with an electrical backup*
or boiler connection* which intervenes to provide
additional heat during the coldest periods.
Settings
▼
Your installer has carefully adjusted your installation.
Do not change the settings without their consent.
If in doubt, do not hesitate to contact them.
Your heating system is controlled by adjustment in
relation to the outside temperature (temperature
control).
The installation of a room thermostat (option) makes it
possible to improve the operation of the control system
(inuence of the ambient temperature is taken into
account).
In order to ensure operation of the control system,
the room containing the thermostat must not also
contain a thermostatic valve. If this is the case, it must
be opened as far as possible.
A new underoor heating system must initially be
heated slowly to avoid any problems involving cracking.
Check with your installer that this initial heating
procedure has indeed been performed before freely
using your heating system.
An underoor heating system's signicant inertia
prevents sudden room temperature dierences.
However, this inertia implies a reaction time of around
several hours (approx 6 hours).
Any changes to the setting must be made slowly
and leave the installation sucient time to react. Any
exaggerated or abrupt adjustments to the settings
always result in signicant temperature uctuations
during the day.
Similarly if your dwelling has an underoor heating
system, do not reduce it or switch it o if you will be
absent for only short periods. The reheating period is
always quite long (approx 6 hours).
Do not use a room sensor in the area in question.
When hot water is required, the heat pump adapts its
priority to meet the request.
No heating is produced during the preparation of
domestic hot water.
The heat pump produces the domestic hot water
(DHW), which is then additionally heated, if required,
by the electrical backup.
To ensure a DHW setpoint over 45°C, the electrical
backup heating or boiler (boiler connection kit)* must
be left on.
The electrical backup allows the correct operation of the
anti-legionella cycles.
Radiators
▼
Underoor heating system
▼
Fan coils / dynamic radiators with an
▼
integrated control system
Domestic Hot Water (DHW)*
▼
* depending on conguration / option
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Waterstage / OPERATING INSTRUCTIONS / 2010 - EN
Appliance end-of-life
►
The appliances must be dismantled and recycled by a
specialised service. The appliances must not, under any
circumstances, be thrown out with household waste,
bulky waste or at a tip.
At the end of its service life, please contact your installer
or local representative to proceed with its dismantling
and recycling.
Overview of the installation
►
Your heat pump has been congured by your installation
engineer. It is made up of the following main parts:
- The outdoor unit, as its name suggests, is placed
outside your dwelling, and extracts energy from the
outside air.
- The hydraulic unit is located in your boiler room, cellar,
garage or even in your kitchen, and transfers energy to
the heating and domestic hot water circuits*.
- The outside sensor monitors the outside temperature.
Optional:
- Room sensor(s).
Heat pumps are systems which can be connected to
any type of low temperature distribution system and
the heat captured by the heat pump can be used in
dierent ways:
- Underoor heating system.
- Radiators.
- Domestic Hot Water (DHW)*.
Outside
sensor
Control options
Room thermostat
(wired or radio)
and/or
Remote control
(wired or radio)
Options depending
on hydraulic
or
congurations
connection kit
Menu
2
circuit kit
Boiler
Heating circuit
underoor heating
Radiators heating
circuit
Boiler
Hydraulic unit
Outdoor unit
g. 1 - Overview of complete installation conguration
Waterstage / OPERATING INSTRUCTIONS / 2010 - EN
* depending on conguration / option
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Carrying out the installation
User interface, Room control unit (option) and Room thermostat (option)
►
1
5
2
6
3
7
8
4
9
1
Auto
2
5
Auto
5
3
0 4 8 12 16 20 24
ESC
OK
4
7
11
2
°C
10
11
8
6
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Waterstage / OPERATING INSTRUCTIONS / 2010 - EN
Ref. Functions - Denitions
Off
Auto
1 Selecting of the DHW operating mode
(Domestic hot water).
- If the installation is tted with a DHW tank.
- On: Production of DHW according to the time program.
- O: Preparing the domestic hot water for stopping with the anti-frost function
On
active.
- Manual start button: Hold down the DHW key for 3 seconds. Switch from
"reduced" to "comfort" until the next time the ECS timer switches over.
2 Digital display. - Operating control. Readout of the current temperature, of the heating mode
and of any faults .
- View the settings.
3 Exit "ESC". - Quit the menu.
4 Navigation and setting. - Selecting the menu.
- Setting parameters.
- Adjusting the ambient temperature setpoint.
5 Selecting the heating mode.
-
Heating operating according to the heating program
(Summer/winter mode switchover is automatic).
- Constant comfort temperature.
- Constant reduced temperature.
- Stand-by mode with anti-frost protection
(Provided that the heat pump's electrical power supply is not interrupted).
6 Information display. - Various data (see page 17).
- Reading error codes.
- Information concerning maintenance, special mode.
7 Conrm "OK". - Input into the selected menu.
- Conrmation of the parameter settings.
- Conrmation of the adjustment to the comfort temp. setting.
8 Selecting cooling mode. - If the installation is tted with the cooling kit:
- Cooling operating according to the heating program
(Summer/winter mode switchover is automatic).
9 RESET button
(Brief press)
- Reinitialising the parameters and cancelling error messages.
Do not use during normal operation.
10 Control knob. - Adjusting the ambient temperature setpoint.
11 Presence key. - Comfort / Reduced switchover.
Waterstage / OPERATING INSTRUCTIONS / 2010 - EN
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