Fujitsu WATERSTAGE 112 User manual
To be saved for
future consultation
Document n° 1364-3 ~ 29/01/2010
Werftstrasse 20
40549 Düsseldorf - Germany
Subject to modications without notice.
Non contractual document.
Contents
Package . . . . . . . . . . . . . . . . . . . . . . . . 5
Denitions . . . . . . . . . . . . . . . . . . . . . . . 5
Specications . . . . . . . . . . . . . . . . . . . . . 6
Heating power curve. . . . . . . . . . . . . . . . . . 9
Description. . . . . . . . . . . . . . . . . . . . . . 10
Operating principle . . . . . . . . . . . . . . . . . 11
Regulation installation and maintenance conditions . . 12
Unpacking and reservations . . . . . . . . . . . . . 12
Receipt . . . . . . . . . . . . . . . . . . . . 12
Handling . . . . . . . . . . . . . . . . . . . 12
Accessories provided . . . . . . . . . . . . . 12
Installation position . . . . . . . . . . . . . . . . . 12
Installation of the outdoor unit . . . . . . . . . . . . 12
Installation precautions . . . . . . . . . . . . 12
Outdoor unit positioning . . . . . . . . . . . 14
Condensate drain hose . . . . . . . . . . . . 14
Installing the hydraulic unit . . . . . . . . . . . . . 15
Installation precautions . . . . . . . . . . . . 15
Positioning the hydraulic unit . . . . . . . . . 15
Refrigeration connections . . . . . . . . . . . . . . 16
Rules and precautions . . . . . . . . . . . . 16
Refrigeration connections. . . . . . . . . . . 16
Creating the arings . . . . . . . . . . . . . 17
Shaping the refrigeration pipes . . . . . . . . 17
Connecting the ared connections . . . . . . 17
Filling the installation with gas . . . . . . . . . . . . 19
Creating a vacuum and lling
the refrigeration connections with gas . . . . 19
Sealing test . . . . . . . . . . . . . . . . . . 19
Additional charge . . . . . . . . . . . . . . . 20
Pump down (Refrigerant collecting operation) . 20
Connecting the heating circuit hydraulically . . . . . 21
General . . . . . . . . . . . . . . . . . . . . 21
Rinsing out the installation . . . . . . . . . . 21
Filling and purging the installation . . . . . . 21
Electrical connections . . . . . . . . . . . . . . . . 22
Characteristic of the electrical supply . . . . . 22
General remarks on electrical connections . . 22
Overview of all the electrical connections . . 23
Cable section and protection rating . . . . . . 23
Electrical connections on the outdoor unit side . 24
Electrical connections on the hydraulic unit side . 25
Outdoor sensor . . . . . . . . . . . . . . . . . . . 27
Room thermostat and/or room control unit . . . . . 27
Start-up . . . . . . . . . . . . . . . . . . . . . . . 28
Conguring the room thermostat . . . . . . . . . . 28
Conguring room control unit . . . . . . . . . . . . 28
Installation and operating manual "1364 - EN"
Heat pump split single service 3 phase
- 2 -
User interface and room control unit (option) . . . . 29
Room thermostat (option) . . . . . . . . . . . . . . 30
Temperature control . . . . . . . . . . . . . . . . . 30
Manual adjustment . . . . . . . . . . . . . . 30
Self-adaptation . . . . . . . . . . . . . . . . 30
Parametering the setting . . . . . . . . . . . . . . 32
General . . . . . . . . . . . . . . . . . . . . 32
Setting parameters . . . . . . . . . . . . . . 32
List of function lines
(settings, diagnosis, status) . . . . . . . . . . 32
Conguration 1, 2, 3 or 4 :
heat pumps with electric back-ups . . . . . . . . . 45
Hydraulic connections . . . . . . . . . . . . 45
Electrical connections . . . . . . . . . . . . 45
Parametering the setting . . . . . . . . . . . 45
Higher temperature radiators . . . . . . . . . 45
Special cases . . . . . . . . . . . . . . . . . 45
Information display . . . . . . . . . . . . . . . . . 52
Faults displayed on hydraulic unit . . . . . . . . . . 53
Faults displayed on the outdoor unit. . . . . . . . . 54
Start-up . . . . . . . . . . . . . . . . . . . . . . . 55
Start-up check-list . . . . . . . . . . . . . . . . . . 55
Defore starting-up. . . . . . . . . . . . . . . 55
Starting-up . . . . . . . . . . . . . . . . . . 56
Settings sheet . . . . . . . . . . . . . . . . . . . . 57
Start-up data sheet . . . . . . . . . . . . . . . . . 58
Installation and operating manual "1364 - EN" - 3 -
Heat pump split single service 3 phase
This heat pump provides :
- Heating in winter.
- Control of two heating circuits*.
- Production of domestic hot water*
(provided that combined with a DHW tank).
- Cooling* in summer (for oor heating-cooling system
or fan-convectors).
- Installation with boiler connection as a supplementary
heating for the coldest days*.
* : These options require the use of additional kits
(see para. "Optional equipment").
Installation and operating manual "1364 - EN"
Heat pump split single service 3 phase
- 4 -
• 2nd circuit kit (UTW-KZSXA).
- for connecting 2 heating circuits.
• DHW kit (UTW-KDWXA).
- for connecting a DHW tank (with built-in electrical
backups).
• Boiler connection kit (UTW-KBSXA).
-for connecting a boiler to the heat pump.
• Room thermostat (UTW-C55XA).
- for correcting the ambient temperature.
• Room control unit (UTW-C75XA).
- for correcting the ambient temperature and
programming the heat pump.
• Cooling kit (UTW-KCLXA).
• Swimming pool kit (UTW-KSPXA).
• High ow rate circulating pump kit (UTW-PHFXA).
- for the installation of 1 circuit oor heating.
• Cooling kit (UTW-KCHXA) compatible with high ow
rate circulating pump.
Heat pump Outdoor unit Hydraulic module
Model Model Code Model Code
112 WOYK112LAT
WSYK160DA9 023615140 WOYK140LAT
160 WOYK160LAT
• 1 package: Outdoor unit.
• 1 package: Hydraulic unit and outdoor sensor.
Split : The heat pump consists of two elements
(an outdoor unit for outside and a hydraulic unit for
inside the dwelling).
Air/water : The surrounding air is the energy source.
This energy is transmitted to the water in the heating
circuit by the heat pump.
Inverter : The fan and compressor speeds are modulated
according to the heating requirements.
This technology enables you to save on energy and
operate on a three-phases power supply, whatever the
heat pump’s output, by avoiding heavy intensities on
start-up.
COP (coefcient of performance) : This is the relationship
between the energy transmitted to the heating circuit
and electrical energy consumed.
Figure 1 - Heat pump operating principle
Ev
Dt
Cn
Cp
1 kW
COP 4
4 kW
20 °C
PAC
- Heat pump.
- Evaporator.
- Compressor.
- Condenser.
- Expansion valve.
Installation and operating manual "1364 - EN" - 5 -
Heat pump split single service 3 phase
Designation, model
Nominal heating performances (outdoor temperature/ initial temperature)
Heatoutput
+7°C/+35°C-Floorheatingsystem kW 11,2 14 16
-7°C/+35°C-Floorheatingsystem kW 11,2 14 15
+7°C/+45°C-Lowtemperatureradiator kW 10,5 13,1 15,1
-7°C/+45°C-Lowtemperatureradiator kW 10,5 13,1 14,5
Powerabsorbed
+7°C/+35°C-Floorheatingsystem kW 2,51 3,22 3,72
-7°C/+35°C-Floorheatingsystem kW 3,92 5,15 5,55
+7°C/+45°C-Lowtemperatureradiator kW 2,9 3,7 4,42
-7°C/+45°C-Lowtemperatureradiator kW 4,16 5,39 6,38
Nominalcoefcientofperformance(COP)(+7°C/+35°C)- 4,46 4,35 4,30
Electrical characteristics
3-Phaseelectricalvoltage(50HZ) V 400 400 400
Maximumcurrentoftheappliance A 8,5 9,5 10,5
Nominalcurrent A 3,6 4,8 5,5
Nominalcurrentoftheelectricalback-ups A 13 13 13
Poweroftheelectricalback-ups kW 9 9 9
Realpowerabsorbed
-Bythefan W 2x104 2x104 2x104
-Bythecirculationpump W 151 151 151
Maximumpowerabsorption
-Bytheoutdoorunit kW 5,175 5,865 6,555
Hydraulic circuit
Maximumoperatingpressure bar 3 3 3
Hydraulicsystemowrate
4°C<Dt<8°C(nominalconditions)
-minimum l/h 1200 1500 1700
-maximum l/h 2400 3000 3400
Various
Weightofoutdoorunit kg 99 99 99
Noiselevelat1meter(outdoorunit)*** dB 53 55 56
Weightofhydraulicunit(empty/fullofwater) kg 53 53 53
Watercapacityofthehydraulicunit l 25 25 25
Heating system operating limits
Exteriortempmini/maxi °C -20/+35 -20/+35 -20/+35
Initialmaxheatingwatertemperature
-Floorheatingsystem °C 45 45 45
-Temperatureradiator °C 60 60 60
Flowminheatingwatertemperature °C 8 8 8
Refrigeration circuit
Diameterofgaspipes inches 5/8 5/8 5/8
Diameterofliquidpipes inches 3/8 3/8 3/8
FactorychargeofrefrigerantR410A g 2500 2500 2500
Maximumoperatingpressure bar 42 42 42
Minimumlengthofpipes m 5 5 5
Maximumlengthofpipes* m 15 15 15
Maximumlengthofpipes** m 20 20 20
Maximumleveldifference** m 15 15 15
* Factory charge of refrigerant R410A.
** Taking into account the possible additional load of refrigerant R410A (see page 20 ).
***Acoustic noise information : The maximum sound pressure level is less than 70 dB(A) for both hydraulic unit and outdoor unit.
According to IEC 704-1 and ISO 3744.
Installation and operating manual "1364 - EN"
Heat pump split single service 3 phase
- 6 -
Designation, model 112 140 160
900
1290
9
21
650
370
Air
31 12330
400
Air
Air
480
88
235
450
1034
1000
"
Figure 2 - Dimensions in mm
Figure 3 - Dimensions in mm
"
Heating ow
ø M 26x34
Heating return
ø M 26x34
Front view Side view
Overow hole (ø 20) 4 holes (ø 10)
Bottom view
Front view
Top view
Side view
Installation and operating manual "1364 - EN" - 7 -
Heat pump split single service 3 phase
mbar
600
500
400
300
200
100
0
0,4 0,6 0,8 1 1,2 1,4 1,6 1,8
m3/h
3
2
1
Figure 4 - Hydraulic pressures and ow rates available
-50
1000
10000
43907
2490
338
-25 0 25 50 75
° C
0
2500
5000
7500
10000
12500
15000
17500
20000
22500
25000
27500
30000
32500
0 10 20 30 40 50 60 70 80 90 100
°C
Outdoor sensor QAC34
Heat pump return sensor
Heat pump ow sensor
Figure 5 - Ohmic values of the sensors
(Hydraulic unit)
Figure 6 - Ohmic values of the sensors (outdoor unit)
-20 -10 0 10 20 30 40 50 60 70 80 90 100 110 120 130
10000
1000
100
10
1
- Compressor casing
- Discharge
- Condensation
- Evaporator outlet
- Evaporator center
- Outdoor
Temperature °C
Ohmic value (kΩ)
1mbar = 10 mmCE = 100 Pa
Installation and operating manual "1364 - EN"
Heat pump split single service 3 phase
- 8 -
-20
0
2
4
6
8
10
12
14
16
18
-15 -10 -5 0510 15 20
-20
0
2
4
6
8
10
12
14
16
18
-15 -10 -5 0510 15 20
-20
0
2
4
6
8
10
12
14
16
18
-15 -10 -5 0510 15 20
Floorheatingsystem(35°C)
Floorheatingsystem(35°C)
Floorheatingsystem(35°C)
Heat output
Heat output
Heat output
Power absorbed
Power absorbed
Power absorbed
Power (kW)Power (kW) Power (kW)
Outside temperature (°C)
Outside temperature (°C)
Outside temperature (°C)
Lowtemperatureradiator(45°C)
Lowtemperatureradiator(45°C)
Lowtemperatureradiator(45°C)
Classicradiator(60°C)
Classicradiator(60°C)
Classicradiator(60°C)
ValuesaccordingtostandardEN14511,forwhichitisnecessary
toaddthepowerabsorbedbytheheatingcirculationpump
Installation and operating manual "1364 - EN" - 9 -
Heat pump split single service 3 phase
Legend
1 - Electric box.
2 - Regulator / User interface.
3 - Start/stop switch.
4 - Heating circulation pump.
5 - Heating ow.
6 - Gas refrigeration connection.
7 - Liquid refrigeration connection.
8 - Heating return.
9 - Drain valve.
10 - Safety valve.
11 - Manometer.
12 - Safety thermostat.
13 - Manual drainer.
14 - Expansion vessel.
15 - Condenser.
16 - Electric back-ups.
Figure 8 - Hydraulic unit components
Legend
1 - Low-noise, high-output propeller fan.
2 - Electric variable speed "inverter" motor.
3 - "Inverter" control module.
4 - Control lights and buttons.
5 - Connection terminal blocks
(power and interconnection).
6 - Refrigerant accumulator bottle.
7 - Four way valve.
8 - Anti-corrosion treated bodywork.
9 - (Hidden behind the inverter control module)
Electric expansion valve for main circuit.
10 - Noise and temperature insulated "inverter"
compressor with liquid injection port.
11 - Refrigeration connection valves (ared
connectors) with protective caps.
12 - Holding tank with condensate drain hole.
13 - High-performance exchange surface
evaporator; anti-corrosion treated hydrophilic
aluminium ns and grooved copper tubes.
14 - Solenoid valve for liquid injection.
15 - Electric expansion valve for liquid injection.
Figure 7 - Outdoor unit components
Installation and operating manual "1364 - EN"
Heat pump split single service 3 phase
- 10 -
The heat pump transmits the energy contained in the
surrounding air into the dwelling to be heated.
The heat pump consists of four main elements, in which
a refrigerant (R410A) circulates.
- In the evaporator (rep. , gure 7, page 10) : The
energy is taken from the surrounding air and is
transmitted to the refrigerant. Because it has a low
boiling point, it changes from the liquid state to the
vapour state, even in cold weather (down to -20 °C
outdoor temperature).
- In the compressor (rep. , g 7 , page 10) : The
vaporised refrigerant brought to high pressure and
takes on more calories.
- In the condenser (rep. , gure 8, page 10 ) : The
energy in the refrigerant is transmitted to the heating
circuit. The refrigerant returns to liquid state.
- In the expansion valve (rep. , gure 7, page 10) : The
liqueed refrigerant is brought back to low pressure
and returns to its initial temperature and pressure.
The heat pump is equipped with a controller, which
controls the room temperature based on the outdoor
temperature measurement and governed by the
temperature control.
The room thermostat (option) provides a corrective
action for the temperature control.
The hydraulic unit is equipped with an electric back-ups
system, which is triggered to provide additional heat
during the coldest periods.
- The heating circuit’s initial temperature is controlled by
the temperature control.
- The power of the outdoor unit is modulated according
to initial heating temperature via the “inverter”
compressor.
- Possibility to set the setpoint of maximun heating initial
temperature.
- Control of the electric back-up heating.
- The daily timer program enables you to dene
the periods for comfortable or reduced ambient
temperature.
- Summer/winter mode switchover is automatic.
- Control of the supplementary boiler* (the electric back-
ups are deactivated).
- The room thermostat* (option) provides a corrective
action for the temperature control
- Control of a second heating circuit*.
- Domestic hot water : Heating time programme, control
of the operation of the DHW circulation pump*.
- Control of swimming pool heating*.
- Managing the cooling*.
- Anti-legionella cycle for domestic hot water.
* If the heat pump is equipped with optional equipment
and the associated kits.
Two domestic hot water (DHW) temperatures can be
parametered: comfort temperature (line 1610 to 60 °C)
and reduced temperature (line 1612 to 40 °C).
The default heat pump program (line 560, 561 and 562)
is set for comfort temperature from 0.00 to 5.00h and for
reduced temperature for the rest of the day.
This optimises electrical consumption while ensuring
comfortable availability of hot water.
Setting for reduced temperature can be useful to prevent
the DHW from switching on too often and for too long
during the day.
The production of domestic hot water (DHW) is triggered
when the temperature in the tank falls 7°C (setting from
line 5024) below the set temperature.
The heat pump produces the domestic hot water, which
is then supplemented, if required, by electrical backup
heating from the tank.
To ensure a DHW setting over 45°C, the electrical
backup heating or the boiler must be left on.
Depending on how the parameter (1620) is set, comfort
temperature can be reached 24h/day or only at night or
depending on the heat pump programme.
If the contract concluded with the energy provider
includes a subscription to day/night tariff, the electrical
backup is subordinate to the supplier’s power tariff and
the comfort temperature may only be reached at night.
If no particular contract is concluded, the comfort
temperature can be reached at any time, including
during the day
The production of DHW takes priority over heating;
nevertheless the production of DHW is controlled by
cycles that control the times assigned to the heating
and the production of DHW in the event of simultaneous
demand.
A function to switch from "reduced" to "comfort" is
provided on the front of the user interface (see ref. 1,
gure 39, page 29 ).
If the heating installation is equipped with a DHW
circulation pump, the pump’s operation during DHW
cycles can be parametered.
Anti-legionella cycles can be programmed.
Installation and operating manual "1364 - EN" - 11 -
Heat pump split single service 3 phase
The appliance must be installed and the maintained by an
approved professional in accordance with the prevailing
regulations and code of practice, in particular:
The legislation on the handling of refrigerants.
Carefully check, in the carrier’s presence, the general
appearance of the appliances and check that the
outdoor unit is not laid on its side or back.
In the case of any dispute, state any appropriate
reservations to the carrier in writing within 48 hours and
send a copy of this letter to the After-Sales service.
The outdoor unit should not be laid on its side or back
during transport.
Laying the unit down during transport is likely to damage
the internal tubes and the compressor suspensions.
Any damage caused by transportation of the unit lying
down is not covered by the warranty.
If necessary the outdoor unit may be tilted only during
manual handling (to go through a door or use a
staircase).
This operation must be conducted very carefully and
the appliance must be immediately restored to upright
position.
- Accessories provided with the outdoor unit (gure 10).
- Accessories provided with the hydraulic unit
(gure 9)
The choice of the position for installation is particularly
important insofar as any later movement is a delicate
operation requiring the intervention of a qualied
person.
Choose the site of the outdoor unit and the hydraulic
unit after discussion with the customer.
Observe the maximum and minimum distances
between the hydraulic unit and the outdoor unit
(gure 17, page 16) ; the guarantee of the performances
and the system’s service life depend on this.
"
• Choose a site that is preferably sunny and sheltered
from strong cold predominant winds (mistral,
tramontana, etc…).
• The unit must be easily accessible for future installation
and maintenance work.
• Ensure that it is possible to make the connections to
the hydraulic unit easily.
• The outdoor unit is able to withstand bad weather but
avoid installing in a position where it is likely to be
exposed to signicant dirt or owing water (under a
defective gutter for example).
5 Bracket To secure the
hydraulic model
6 Outdoor sensor To monitor the outdoor
temp
Figure 9 - Accessories provided
with the hydraulic unit
5 6 12
1 Elbow For draining away the
condensates
2 Plug (x 2)
Figure 10 - Accessories provided
with the outdoor unit
Installation and operating manual "1364 - EN"
Heat pump split single service 3 phase
- 12 -
• Water may drain away from the outdoor unit when it
is operating. Do not install the appliance on a paved
terrace ; choose a well-drained place (e.g. gravel
or sand). If the installation is in an area where the
temperature can be lower than 0°C for a long period,
check that the presence of ice does not present any
danger. A drainage pipe can also be connected to the
outdoor unit (see gure 12, page 14).
• Nothing should obstruct the air circulation through the
evaporator and from the fan.
• Keep the outdoor unit away from heat sources and
inammable products.
• Make sure the appliance not disturb the surrounding
area or users (noise level, draught generated, low
temperature of the air being blown out, with the risk of
freezing plants in its path).
• The surface supporting the outdoor unit should:
- be permeable (soil, gravel, etc),
- support its weight easily,
- provide a solid xing and
- not transmit any vibration to the dwelling.
• Anti-vibratory blocks are available, please consult your
retailer.
1000 mm
ou plus
200 mm
300 mm
200 mm
1000 mm ou plus
150 mm
150 mm
300 mm
Max. 500 mm
1000 mm
1500 mm
250 mm 250 mm
500 mm
Max. 500 mm
1500 mm ou plus
300 mm 500 mm
1500 mm ou plus
1500 mm
500 mm
Max. 300 mm
1500 mm
Figure 11 - Minimum installation clearances around outdoor unit
or more
or more
or more
or more
Installation and operating manual "1364 - EN" - 13 -
Heat pump split single service 3 phase
The outdoor unit must be raised at least 50 mm above
ground level. In areas prone to snow, this height should
be increased but should not exceed 1,5 m (gure 12).
- Fasten the outdoor unit by means of screws and
rubber tightening or toothed lock washers to avoid
their coming loose.
(see gure 12).
If the use of a discharge pipe is imperative:
- Use the elbow provided () to connect a 16 mm
diameter hose for draining away the condensate.
- Use the stopper or stoppers provided () to block the
opening of the condensate tank.
Allow for the condensate to ow away under the force of
gravity (waste water, rain water, gravel bed).
"
Figure 12 - Positioning of the outdoor unit, draining
away the condensate
* In regions subject to frequent snow,
(H) must be greater than the average snow layer.
H* ≥ 50mm
4 holes
(ø 12 mm)
Installation and operating manual "1364 - EN"
Heat pump split single service 3 phase
- 14 -
90 mm
(S)
505 mm
240 mm
150 mm
200 mm
305 mm
• The room in which the appliance operates must comply
with the prevailing regulations.
• To facilitate maintenance and to allow access to
the various components, we recommend that you
provide sufcient space all around the hydraulic unit
(gure 13).
• Be careful not to bring inammable gas near to the
heat pump during its installation, in particular when
it requires brazing. The appliances are not reproof
and should not therefore be installed in a potentially
explosive atmosphere.
- Remove the front panel (2 screws , gure 14)
- Remove the sides (4 screws , gure 15).
- Fix the support solidly (3 screws and plugs) to a at,
hard-wearing wall (not a light partition) ensuring that it
is correctly levelled.
- Hook the appliance onto its support.
- Ret the sides.
- Ret the front panel.
200 mm
1000 mm
150 mm
150 mm
Figure 13 - Minimum installation clearances
around the hydraulic unit
and distances to the combustible partitions
Figure 14 - Removing the front panel
Figure 15 - Removing the sides and xing the support
A
B
(S)
B
Installation and operating manual "1364 - EN" - 15 -
Heat pump split single service 3 phase
"
Comply with the legislation for handling refrigerants.
• After every intervention on the refrigeration circuit and
before nal connection, take care to replace the plugs
in order to avoid any pollution from the refrigeration
circuit.
• Tools
- Set of manometers with hoses exclusively reserved
for HFCs (Hydrouorocarbons).
- Vacuum pump specially for HFCs.
- Provision on using tools that have been in contact with
HCFCs (R22 for example) or CFCs.
- Use of a traditional vacuum pump is authorized if, and
only if, it is tted with a non-return valve on the suction
side.
The manufacturer declines any liability with regard to the
guarantee if the above instructions are not observed.
• Flared connections
"
- Only lubricate with polyolester refrigeration oil (POE).
If POE is not available, t without lubrication.
• Brazing on the refrigeration circuit (if necessary)
- Silver brazing (40% minimum recommended).
- Brazing only under dry nitrogen internal ux.
• To eliminate any lings in the pipes, use dry nitrogen
to avoid introducing any humidity that may adversely
affect the appliances operation. In general, take every
precaution to avoid humidity penetrating into the
appliance.
• Proceed to insulate the gas and liquid pipes to avoid
any condensation. Use insulating sleeves resistant to
temperatures over 120°C. In addition if the humidity
level in the areas where the refrigeration pipes pass
risks exceeding 70%, protect the pipes with insulating
sleeves. Use a sleeve thicker than 15mm if the humidity
reaches 80%, and a sleeve thicker than 20 mm
if the humidity exceeds 80%. If the recommended
thicknesses are not observed under the conditions
described above, condensation will form on the
surface of the insulation material. Lastly, take care to
use insulating sleeves whose thermal conductivity is
0.045 W/mK or less when the temperature is 20°C. The
insulation must be impermeable to resist the passage
of steam during the defrosting cycles (breglass wool
is prohibited).
The outdoor unit must be connected to the hydraulic
unit with copper pipes and connections (refrigeration
quality), insulated separately.
Comply with the pipe diameters and the permitted pipe
lengths (gure 17).
.
The appliance will be excluded from guarantee if it is
used with refrigeration connections less than 5 m long.
Manipulate the pipes and take them through walls with
protective plugs in place.
If the distance between the outdoor unit and the
hydraulic unit exceeds the length of the maximum
conduits indicated in the table, an additional charge of
R410A must be loaded.
The quantity of R410A added must be adapted to the
length of the refrigeration circuit in order to the heat
pump’s performance without damaging the compressor
(See para. "Additionnal charge", page 20).
Figure 16 - Prevention of gas leaks
Coat the ared surface
with
DL
mini
5 m
Figure 17 - Pipe diameters (in inches) and permissible lengths (in meters)
Gas and liquid conduits
Gas Liquid Minimum
length (L)
*Maximum
length (L)
**Maxi level
difference (D)
Heat pump
Model 5/8" 3/8" 5 15 15
: Without additional charge of R410A.
: Taking into account the possible additional load of refrigerant R410A
(see para. 2.7.3, page 20).
Heat
pump
PAC
Installation and operating manual "1364 - EN"
Heat pump split single service 3 phase
- 16 -
Figure 18 - Flaring for are connections
Flaring tool
Hose
Flare
nut
ø Hose Dimensions in mm
L B 0/-0,4 C
9,52 (3/8") 2,5 to 2,7 13,2 22
15,88 (5/8") 2,9 to 3,1 19,7 29
- Cut the pipe to an appropriate length with a pipe-cutter
without deforming it.
- Carefully deburr it, holding the pipe towards the bottom
to avoid introducing lings into the pipe.
- Remove the ared connection nut situated on the valve
to be connected and slip the pipe into the nut.
- Proceed to are, letting the pipe overow the aring tool.
- After aring, check the condition of the working radius
(). This must not show any scratch or trace of any
fracturing. Also check the dimension ().
The refrigeration pipes must be shaped only on a
bending machine or with a bending spring in order to
avoid any risk of crushing or breaking them.
"
• Remove the insulation material locally to bend the
pipes.
• Do not bend the copper to any angle over 90°.
• Never bend pipes more than 3 times in the same
position otherwise traces of fracturing may appear
(from strain-hardening the metal).
"
"
"
- Remove the plugs from the pipes and the refrigeration
connections.
- Present the pipe to the ared connector and screw the
nut by hand while holding the connector with a wrench
until contact.
- Comply with the recommended tightening torques.
Figure 19 - Tightening torque
Designation Tightening torque
Flare nut 9,52 mm (3/8") 32 to 42 Nm
Flare nut 15,88 mm (5/8") 63 to 75 Nm
Plug (A) 3/8" 20 to 25 Nm
Plug (A) 5/8" 30 to 35 Nm
Plug (B) 3/8", 5/8" 10 to 12 Nm
Holding wrench
Torque wrench
Installation and operating manual "1364 - EN" - 17 -
Heat pump split single service 3 phase
Outdoor unit connections Diameter of refrigeration
connections
Hydraulic unit
connections
Heat pump
Model
Gas 5/8" (D1) 5/8" 5/8"
Liquid 3/8" (D2) 3/8" 3/8"
Figure 20 - Connecting the ared connections
Liquid valve
Gas valve
Flare nut
Flare nut
Flare nut
Flare nut
Liquid refrigeration connection
diameter D2
Gas refrigeration connection
diameter D1
Installation and operating manual "1364 - EN"
Heat pump split single service 3 phase
- 18 -
"
"
"
(see gure 21).
- Remove the protective plugs () from the charging
hole (Schrader) in the gas valve (large diameter).
- Connect the blue hose (on the side with a valve
pusher in good condition) from the set of manometers
(manifold).
- Connect the yellow hose to a vacuum pump and open
the blue valve on the set of manometers.
- Create a vacuum until the residual pressure in the
circuit falls below 0.01 bar.
- Let the pump continue to operate for another 15
minutes after reaching the vacuum.
- Close the blue valve on the set of manometers and
then stop the vacuum pump
.
- Wait 10 minutes. If the pressure rises during this
10-minute period, there is a leak in the circuit. Trace it
and repair it: then start again.
When the pressure has remained stable for 10
minutes after the vacuum pump stops, the circuit
is considered to be gas-tight.
- Remove the access plugs () from the valve controls.
"
- First of all fully open the small valve and then the
large one using a hex key (counterclockwise direction)
without forcing excessively against the stop.
- Remove the blue hose rapidly.
- Ret the 2 plugs and tighten them to the recommended
tightening torque (see gure 19, page 17).
The outdoor unit does not contain any additional
refrigerant, enabling the installation to be purged.
Flushing is strictly forbidden.
Once the refrigeration circuit has been gassed as
described above, check that all the refrigeration
connectors are gas-tight.
The sealing test must be performed with an approved
gas detector. If the arings have been made correctly,
there should be no leaks.
"
Figure 21 - Extraction under vacuum and gassing
Manomter kit
(manifold)
Vacuum
pump
Service
hose
Service hose (blue)
tted with valve push-button
Plug ()
Plug ()
Hex / Allen key
of 4 mm
Load orice
Refrigeration
connection
3-way valve
Low
pressure
High
pressure
Gas valve
Installation and operating manual "1364 - EN" - 19 -
Heat pump split single service 3 phase
Perform the following procedures to collect the refrigerant.
1. Turn OFF the start/stop switch.
2. Remove the front panel. Then turn ON the DIP SW
1 on the interface card.
3. Turn ON the start/stop switch.
(Green and Red LED on the board start ashing ;
1 sec. on / 1 sec. off repeated)
4. The outdoor unit begins cooling operation about 3
minutes after switching ON.
Close the liquid valve on the outdoor unit 1 minute
after operation starts.
5. Close the gas valve on the outdoor unit 1-2 minutes
after closing the liquid valve, while the outdoor unit
keeps running.
6. Disconnect the power supply.
Remarks :
- Make sure to turn OFF the start/stop switch before
touching DIP SW.
- The pump down operation cannot be activated even if
DIP SW is changed while heat pump's power is on.
- Do not forget to turn back DIP SW 1 on the interface
card to OFF, after the pump down operation has been
completed.
- When the pump down operation is repeated, temporarily
turn OFF the start/stop switch after opening the closed
valves (both liquid and gas).
- Then turn ON the start/stop switch again after
2 - 3 minutes and perform the pump down operation.
50 g of R410A per additional meter
Length of the connections 15 m 20 m
Additional charge none 250 g
R410A
Figure 22 - Gas bottle R410A
The charge in the outdoor units corresponds to the
maximum distances between the outdoor unit and the
hydraulic unit dened in gure 17. If the distances are
greater, an additional charge of R410A is required. The
additional charge depends on the distance between
the outdoor unit and the hydraulic unit for each type
of appliance. The additional charge of R410A must
necessarily be made by an approved refrigeration
engineer.
• Example of additional charge :
An outdoor unit 17 m away from the hydraulic unit will
require an additional charge of :
Additional charge = (17 - 15) x 50 = 100 g.
The charge must be introduced after creating the
vacuum and before the hydraulic unit is lled with gas,
as follows :
- Disconnect the vacuum pump (yellow hose) and
connect a bottle of R410A instead
.
- Open the bottle’s valve.
- Bleed the yellow hose by loosening it slightly on the
manifold side.
- Place the bottle on scales with a minimum accuracy of
10 g. Note the weight.
- Carefully open the blue valve slightly and check the
value shown on the scales.
- As soon as the value displayed has dropped by the
value for the calculated additional charge, close the
bottle and disconnect it.
- Then rapidly disconnect the hose connected to the
appliance.
- Proceed to ll the hydraulic unit with gas.
"
• Only use R410A !
• Only use tools suitable for R410A
(set of manometers).
• Always charge in the liquid phase.
• Never exceed the length or the maximum difference
in level.
1 2 3 4
DIP SW 1
Interface card
LED2
(green)
LED1
(red)
OFF
Figure 23 - Location of DIP switches and diodes
on the hydraulic unit interface card
Gas
Liquid
Installation and operating manual "1364 - EN"
Heat pump split single service 3 phase
- 20 -
• Example for a heat pump model 160
Other manuals for WATERSTAGE 112
1
This manual suits for next models
2
Table of contents
Other Fujitsu Heat Pump manuals
Fujitsu
Fujitsu WPYA050LE User manual
Fujitsu
Fujitsu WOYA060LFCA User manual
Fujitsu
Fujitsu FO14R Series User manual
Fujitsu
Fujitsu Waterstage WOYG112LCTA Technical manual
Fujitsu
Fujitsu Airstage AOU72RLAVL User manual
Fujitsu
Fujitsu AOYA18LALL User manual
Fujitsu
Fujitsu FO2416RTJNAA User manual
Fujitsu
Fujitsu Waterstage WOYG140LCTA User manual
Fujitsu
Fujitsu FO20R Series User manual
Fujitsu
Fujitsu Halcyon AOU9RLS2 User manual
Fujitsu
Fujitsu WOxK112LCT Service manual
Fujitsu
Fujitsu Waterstage WS G140DC6 Series Technical manual
Fujitsu
Fujitsu Waterstage DHW Series User manual
Fujitsu
Fujitsu Waterstage GENERAL WOHG112LHT User manual
Fujitsu
Fujitsu Waterstage Comfort 5 User manual
Fujitsu
Fujitsu Airstage J-II Service manual
Fujitsu
Fujitsu Waterstage WOYK150LJL User manual
Fujitsu
Fujitsu Airstage AJ 072GALBH Series User manual
Fujitsu
Fujitsu WGYA050DG6 Service manual
Fujitsu
Fujitsu WPYA100LA User manual
Popular Heat Pump manuals by other brands
Dimplex
Dimplex LI 16I-TUR Installation and operating instruction
Carrier
Carrier WSHP Open v3 Integration guide
Diamant
Diamant D10LW Installation and maintenance instructions
Calorex
Calorex Pro-Pac Series Owners & installation manual
Dimplex
Dimplex WI 140TUR+ Installation and operating instructions
TESY
TESY AquaThermica Compact HPWH 3.2 100 user manual
Bosch
Bosch Compress Hybrid 7000i AW installation manual
International comfort products
International comfort products N4H3: C4H3 installation instructions
Sime
Sime ECOMAXI 90 ErP manual
Lampoassa
Lampoassa T 10-15 user manual
Daikin
Daikin EWSAH06D 9W Series Installer's reference guide
Nibe
Nibe F2300 user manual
Alpha
Alpha SWP operating manual
Dimplex
Dimplex SI 50TU Installation and operating instruction
Olimpia splendid
Olimpia splendid Sherpa Monobloc 4 Instructions for installation, use and maintenance
Haier
Haier GE NS22HM Service manual
State Water Heaters
State Water Heaters 100 SERIES User's information manual
Hitecsa
Hitecsa EKWXBA HE 38.2 Installation, operation & maintenance manual