Panasonic WH-MDC05H3E5 User manual

© Panasonic Corporation 2017.
Order No: PAPAMY1709003CE
Mono Bloc Unit
WH-MDC05H3E5
WH-MDC07H3E5
WH-MDC09H3E5
Destination
Europe
Turkey
WARNING
This service information is designed for experienced repair technicians only and is not designed for use by the general public.
It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product.
Products powered by electricity should be serviced or repaired only by experienced professional technicians. Any attempt to
service or repair the products dealt with in this service information by anyone else could result in serious injury or death.
In order to avoid frostbite, be assured of no refrigerant leakage during the installation or repairing of refrigerant circuit.
PRECAUTION OF LOW TEMPERATURE

54
11.Installation Instruction
11.1 Mono Bloc Unit
11.1.1 Select the Best Location
Install the Mono bloc unit in outdoor locations only.
Avoid installations in areas where the ambient
temperature may drop below -20°C.
The Mono bloc unit must be installed on a flat,
solid surface.
A place removed from any heat source or steam
which may effect the operation of the Mono bloc
unit.
A place where air circulation is good.
A place where drainage can be easily done.
A place where Mono bloc unit’s operation noise
will not cause discomfort to the user.
A place which is accessible for maintenance.
Ensure to keep minimum distance of spaces as
illustrated above from wall, ceiling, or other
obstacles.
A place where flammable gas leaking might not
occur.
A place where the Mono bloc unit’s piping and
wiring lengths come within reasonable ranges.
If an awning is built over the unit to prevent direct
sunlight or rain, be careful that heat radiation from
the condenser is not obstructed.
Do not place any obstacles which may cause a
short circuit of the discharged air.
Avoid installing the Mono bloc unit at a location
where suction side may be exposed directly to
wind.
If Mono bloc unit installed near sea, region with
high content of sulphur or oily location (e.g.
machinery oil, etc.), it lifespan maybe shorten.
When installing the product in a place where it will
be affected by typhoon or strong wind such as
wind blowing between buildings, including the
rooftop of a building and a place where there is no
building in surroundings, fix the product with an
overturn prevention wire, etc. (Overturn prevention
fitting model number: K-KYZP15C)
11.1.2 Mono Bloc Unit Installation
Mono bloc unit will become heavy when filled with
water. Please install the unit on a strong concrete floor
and consider the weight of the unit and water.
Fix Mono bloc unit on the concrete floor with M12
anchor bolt at 4 locations.
Pull-out strength of these anchor bolts must be
above 15000N.
Disposal of Mono Bloc Unit 11.1.2.1
Drain Water
When a Drain elbow is used, please ensure to
follow below:
oThe unit should be placed on a stand which is
taller than 50mm.
oCover the 8 holes (ø20mm) with Rubber cap
(refer to illustration below)
oUse a tray (field supply) when necessary to
dispose the Mono bloc unit drain water.
If the unit is used in an area where temperature
falls below 0°C for 2 or 3 consecutive days, it is
recommended not to use the Drain elbow and
Rubber cap, for the drain water freezes and the
fan will not rotate.
Grip anchor bolt
Broken stone
Anchor bolt 60mm or more
300mm or
more
Floor
Concrete
Embedded anchor bolt
Anchor bolt
Floor slab (concrete)
Above
20mm
80mm
•
Compress strength of concrete is above 18MPa {180kgf/cm
2
}
Illustration of grip type and embedded type anchor bolt
Drain elbow
1
Ru
b
ber cap
2
x 8

55
11.1.3 Piping Installation
WARNING
This section is for authorized and licensed electrician / water system installer only. Work behind the front plate secured by screws must only be
carried out under supervision of qualified contractor, installation engineer or service person.
Please engage a licensed water circuit installer to install this water circuit.
This water circuit must comply with relevant European and national regulations (including EN61770), and local
building regulation codes.
Ensure the components installed in the water circuit could withstand water pressure during operation.
Do not apply excessive force to piping that may damage the pipes.
Use Rp 1¼" nut for both water inlet and water outlet connection and clean all piping with tap water before
connecting to the Mono bloc unit.
Cover the pipe end to prevent dirt and dust when inserting it through a wall. If an existing tank is to be connected
to this Mono bloc unit, ensure the pipes are clean before water pipe installation is carried out.
Choose proper sealer which can withstand the pressures and temperatures of the system.
Make sure to use two spanners to tighten the connection. Tighten the nuts with torque wrench: 117.6 N•m.
If non-brass metallic piping is used for installation, make sure to insulate the piping to prevent galvanic corrosion.
Do not use pipes that are crushed or deformed. If these inferior pipes are used, it may cause unit malfunction.
Make sure to insulate the water circuit piping (insulator thickness : 20mm or more) to prevent condensation
during cooling operation and reduction of heating capacity, as well as avoid freezing of the outdoor water circuit
piping during winter season.
After installation, check the water leakage condition in connection area during test run.
In case of a power supply failure or pump operating failure, drain the system (as suggested in the figure below).
Drainage piping installation
Use a drain hose with inner diameter of 15 mm.
The hose must be installed in a continuously
downward direction and left open to the frost-free
atmosphere.
If drain hose is long, use a metal support fixture
along the way to eliminate the wavy pattern of
drain tube.
Water will drip from this hose, therefore the outlet
of this hose must be installed in an area where the
outlet cannot become blocked.
Do not insert this hose into sewage or drain pipe
that may generate ammonia gas, sulfuric gas, etc.
If necessary, use a hose clamp to tighten the hose
at drain hose connector to prevent it from leaking.
H< H
When water is idle inside the system, freezing up is very likely to
ha
pp
en which could dama
g
e the s
y
stem.
CAUTION
Do not over tighten, over tightening cause water leakage.
Illustration of how to fix
d
r
ain hose to Mono bloc uni
t
D
r
ain hose
connector
Drain hose

56
11.1.4 Connect the Cable to Mono Bloc Unit
WARNING
This section is for authorised and licensed electrician only. Work behind the cabinet front plate secured by screws must only be carried out
under supervision of qualified contractor, installation engineer or service person.
Remove The Cabinet Front 11.1.4.1
Plate
1. Remove the 5 mounting screws as shown in the
illustration.
2. Slide the cabinet front plate downward to release
the pawls.
Then, pull it toward front to remove it.
Remove The Cabinet Top Plate 11.1.4.2
1. Remove the 12 mounting screws as shown in the
illustration.
2. Lift the cabinet top plate upward to remove it.
Fixing of Power Supply Cord 11.1.4.3
(REFER TO WIRING DIAGRAM AT UNIT FOR DETAIL)
1. An isolating device must be connected to the power supply cable.
oIsolating device (Disconnecting means) should have minimum 3.0 mm contact gap.
oConnect the approved polychloroprene sheathed power supply 1 cord and power supply 2 cord and type
designation 60245 IEC 57 or heavier cord to the terminal board, and to the other end of the cord to isolating
device (Disconnecting means). See below table for cable size requirement.
Model Power Supply Cord Cable Size Isolating Devices Recommended RCD
WH-MDC05H3E5 1 3 x min 1.5 mm
2
15/16A 30mA, 2P, type A
2 3 x min 1.5 mm
2
15/16A 30mA, 2P, type AC
WH-MDC07H3E5 and WH-MDC09H3E5 1 3 x min 2.5 mm
2
25A 30mA, 2P, type A
2 3 x min 1.5 mm
2
15/16A 30mA, 2P, type AC
2. To avoid the cable and cord being damaged by sharp edges, the cable and cord must be passed through the
designated holes before being connected to the terminal block.
3. Secure the cable onto the control board with the holder (clamper).
Wire Stripping and Connecting Requirement 11.1.4.4
Mounting screws
Mounting
screws
Cabinet front plate
f
Cabinet top plate 6
Mounting
screws
Terminal on the Mono bloc unit L N L
1
N
1
(Power Supply Cord)
Terminals on the isolating device from
power supply (Disconnecting means)
LN L
1
N
1
P
o
w
er Su
pp
l
y
2
P
o
w
er Su
pp
l
y
1
Terminal screw Tightening torque
cN•m {kgf•cm}
M4 157~196 {16~20}
M5 196~245 {20~25}
*1 - Earth wire must be longer than other cables
for safety reasons.
P
o
wer Supply Cord
*1
5 mm or
more
(gap between wires)
Te r m i n a l
board
Wire stripping
No loose strand
when insert
10 ± 1 mm
ACCEPT
Conductor
over insert
Conductor not
fully insert
Conductor
fully insert
PROHIBITED PROHIBITED

57
Connecting Requirement 11.1.4.5
For WH-MDC05H3E5
The equipment’s Power Supply 1 complies with IEC/EN 61000-3-2.
The equipment’s Power Supply 1 complies with IEC/EN 61000-3-3 and can be connected to current supply
network.
The equipment’s Power Supply 2 complies with IEC/EN 61000-3-2.
The equipment’s Power Supply 2 complies with IEC/EN 61000-3-11 and shall be connected to suitable supply
network, with the following maximum permissible system impedance Zmax = 0.257 ohm (Ω) at the interface.
Please liaise with supply authority to ensure that the Power Supply 2 is connected only to a supply of that
impedance or less.
For WH-MDC07H3E5 and WH-MDC09H3E5
This equipment’s Power Supply 1 complies with IEC61000-3-12 provided that the short circuit power Ssc is
greater than or equal to 750.00kW at the interface point between the user’s supply and the public system. It is the
responsibility of the installer or user of the equipment to ensure, by consultation with the distribution network
operator if necessary, that the equipment is connected only to a supply with a short circuit power Ssc greater than
or equal to 750.00kW.
The equipment’s Power Supply 1 complies with IEC/EN 61000-3-11 and shall be connected to a suitable supply
network, having services current capacity ≥100A per phase. Please liaise with supply authority that the service
current capacity at the interface point is sufficient for the installation of the equipment.
The equipment’s Power Supply 2 complies with IEC/EN 61000-3-2.
The equipment’s Power Supply 2 complies with IEC/EN 61000-3-11 and shall be connected to suitable supply
network, with the following maximum permissible system impedance Zmax = 0.257 ohm (Ω) at the interface.
Please liaise with supply authority to ensure that the Power Supply 2 is connected only to a supply of that
impedance or less.
Connecting with external device (optional) 11.1.4.6
All connections shall follow to the local national wiring standard.
It is strongly recommended to use manufacturer-recommended parts and accessories for installation.
For connection to main PCB
1 Two-way valve shall be spring and electronic type, refer to “Field Supply Accessories” table for details. Valve
cable shall be (3 x min 1.5 mm2), of type designation 60245 IEC 57 or heavier, or similarly double insulation
sheathed cable.
* note: - Two-way Valve shall be CE marking compliance component.
- Maximum load for the valve is 9.8VA.
2 Three-way valve shall be spring and electronic type. Valve cable shall be (3 x min 1.5 mm2), of type
designation 60245 IEC 57 or heavier, or similarly double insulation sheathed cable.
* note: - Shall be CE marking compliance component.
- It shall be directed to heating mode when it is OFF.
- Maximum load for the valve is 9.8VA.
3 Room thermostat cable must be (4 or 3 x min 0.5 mm2), of type designation 60245 IEC 57 or heavier cord, or
similarly double insulation sheathed cable.
4 Maximum output power of booster heater shall be ≤3 kW. Booster heater cable must be (3 x min 1.5 mm2),
of type designation 60245 IEC 57 or heavier.
5 Extra pump cable shall be (2 x min 1.5 mm2), of type designation 60245 IEC 57 or heavier.
6 Boiler contact cable shall be (2 x min 0.5 mm2), of type designation 60245 IEC 57 or heavier.
7 External control shall be connected to 1-pole switch with min 3.0 mm contact gap. Its cable must be (2 x min
0.5 mm2), double insulation layer of PVC-sheathed or rubber-sheathed cable.
* note: - Switch used shall be CE compliance component.
- Maximum operating current shall be less than 3Arms.

58
8 Tank sensor shall be resistance type, please refer to graph below for the characteristic and details of sensor.
Its cable shall be (2 x min 0.3 mm2), double insulation layer (with insulation strength of min 30V) of PVC-
sheathed or rubber-sheathed cable.
9 Room sensor zone 1 cable shall be (2 x min 0.3 mm2) double insulation layer of PVC-sheathed or rubber-
sheathed.
10 Outdoor air sensor cable shall be (2 x min 0.3 mm2) double insulation layer of PVC-sheathed or rubber-
sheathed.
11 Tank OLP cable must be (2 x min 0.5 mm2), double insulation layer of PVC-sheathed or rubber-sheathed
cable.
-30 -20 -10 0 10 20 30
16000
14000
12000
10000
8000
˚C
6000
4000
2000
0
Tank sensor characteristic
Resistance Ω
Tank Sensor Resistance Vs Temperatur
e
Optional cables:
•
External control cable
•
Tank sensor cable
•
Room sensor zone 1
•
Outdoor air sensor cable
•
Tank OLP cable
Optional cables:
•
3-way valve cable
•
2-way valve cable
•
Room thermostat zone 1 cable
•
Booster heater cable
•
Extra pump cable
•
Boiler contact cable
•
Remote controller cable
•
Power Supply 2 cord
•
Power Supply 1 cord
•
Power supply 2 cord
O
ptional cables:
•
3-way valve cable
•
2-way valve cable
•
Room thermostat
zone 1 cable
•
Booster heater cable
•
Extra pump cable
•
Boiler contact cable
•
Remote controller
cable
Guide cables
through
this hole to
bushing e
Bind all power supply cords and external
device cables to the pipe (cover with
foam) with band strap (field supply)
Make sure
these cords/
cables do not
touch any
portion of
pump body
•
Power supply 1 cord

59
For connection to optional PCB
1 By connecting optional PCB, 2 Zone temperature control can be achieved. Please connect mixing valves,
water pumps and thermistors in zone 1 and zone 2 to each terminals in optional PCB. Temperature of each
zone can be controlled independently by remote controller.
2 Pump zone 1 and zone 2 cable shall be (2 x min 1.5 mm2), of type designation 60245 IEC 57 or heavier.
3 Solar pump cable shall be (2 x min 1.5 mm2), of type designation 60245 IEC 57 or heavier.
4 Pool pump cable shall be (2 x min 1.5 mm2), of type designation 60245 IEC 57 or heavier.
5 Room thermostat zone 1 and zone 2 cable shall be (4 x min 0.5 mm2), of type designation 60245 IEC 57 or
heavier.
6 Mixing valve zone 1 and zone 2 cable shall be (3 x min 1.5 mm2), of type designation 60245 IEC 57 or
heavier.
7 Room sensor zone 1 and zone 2 cable shall be (2 x min 0.3 mm2), double insulation layer (with insulation
strength of minimum 30V) of PVC-sheathed or rubber-sheathed cable.
8 Buffer tank sensor, pool water sensor and solar sensor cable shall be (2 x min 0.3 mm2), double insulation
layer (with insulation strength of minimum 30V) of PVC-sheathed or rubber-sheathed cable.
9 Water sensor zone 1 and zone 2 cable shall be (2 x min 0.3 mm2), double insulation layer of PVC-sheathed
or rubber-sheathed cable.
10 Demand signal cable shall be (2 x min 0.3 mm2), double insulation layer of PVC-sheathed or rubber-
sheathed cable.
11 SG signal cable shall be (3 x min 0.3 mm2), double insulation layer of PVC-sheathed or rubber-sheathed
cable.
12 Heat/Cool switch cable shall be (2 x min 0.3 mm2), double insulation layer of PVC-sheathed or rubber-
sheathed cable.
13 External compressor switch cable shall be (2 x min 0.3 mm2), double insulation layer of PVC-sheathed or
rubber-sheathed cable.
How to guide optional cables and power supply cords to control board
Bind optional
cables with
these bands
Bind optional
cables with
these bands
PCB 1
Power supply 2
RCCB
Power supply 1
RCCB
Holder
(Clamper)
How to guide optional cables and power supply cords
(view without internal wiring)
Optional cables:
•
Pump zone 1 cable
•
Pump zone 2 cable
•
Solar pump cable
•
Pool pump cable
•
Error signal cable
from
optional
PCB
Optional cables:
•
Room thermostat zone 1
cable
•
Room thermostat zone 2
cable
•
Mixing valve zone 1 cable
•
Mixing valve zone 2 cable
from
optional
PCB
Optional cables:
•
Room sensor zone 1 cable
•
Room sensor zone 2 cable
•
Buffer tank sensor cable
•
Pool sensor cable
•
Water sensor zone 1 cable
•
Water sensor zone 2 cable
•
Demand signal cable
•
Solar sensor cable
•
SG signal cable
•
Heat/Cool switch cable
•
External Compressor
switch cable
f
rom
optional
PCB

60
Terminal screw on PCB Maximum tightening torque cN•m {kgf•cm}
M3 50 {5.1}
M4 120 {12.24}
11.1.5 Installation of Remote Controller
Installation Location
11.1.5.1
Install at the height of 1 to 1.5 m from the floor (Location where average room temperature can be detected).
Install vertically against the wall.
Avoid the following locations for installation.
1 By the window, etc. exposed to direct sunlight or direct air.
2 In the shadow or backside of objects deviated from the room airflow.
3 Location where condensation occurs (The Remote Controller is not moisture proof or drip proof.)
4 Location near heat source.
5 Uneven surface.
Keep distance of 1 m or more from the TV, radio and PC. (Cause of fuzzy image or noise)
Guide cables through
this hole to bushing e
How to guide optional cables to bushing
Guide cables through
this hole to bushing e
How to guide optional cables to control board
Guide cables through
this hole to bushing eGuide cables through
this hole to bushing e
Bind optional
cables with
this band
How to guide optional cables (view without internal wiring)

61
Remote Controller Wiring 11.1.5.2
Remote Controller cable shall be (2 x min 0.3 mm2), of double insulation PVC-sheathed or rubber sheathed cable.
Total cable length shall be 50 m or less.
Be careful not to connect cables to other terminals (e.g. power source wiring terminal). Malfunction may occur.
Do not bundle together with the power source wiring or store in the same metal tube. Operation error may occur.
Mounting The Remote Controller 11.1.5.3
For exposed type
Preparation: Make 2 holes for screws using a driver.
1
2
Terminal for Remote Controller wiring
Remote Controlle
r
Mono
b
loc unit
Remote Controller
wiring (field supply)
•
No polarity
UP
Cut here with
a nipper and
remove the burr
with a file.
Mount the top case.
•
Align the claws of the top
case and then align the claws
of the bottom case.
Hole for screw
Screw
(field supply)
Claw (2 places)
Claw (2 places)
Wall to which
the remote
controller is
fixed
Mount the bottom case to
the wall.
Connect the remote control
wiring
•
Arrange the wires along the groove
of the case.

62
For embedded type
Preparation: Make 2 holes for screws using a driver.
UP
Avoid the wire
being caught.
Mount the top case.
•
Align the claws of the top
case and then align the claws
of the bottom case.
Hole for
screw
Screw
(field supply)
Claw (2 places)
Bottom case
(Back side)
Top case
(Back side)
Remote controller
terminal board
Remove the coating.
Approx. 6 mm
Make sure the wiring
connection is in the correct
direction.
Claw (2 places)
Mount the bottom case
to the wall.
•
Pass the wire through the hole
in the centre of the bottom case.
Connect the remote
control wiring
Pass through
the hole
Bottom case
(Back side)
Top case
(Back side)
Remote controller terminal board
Remove the coating. Approx. 6 mm
Remove the sheath. Approx. 180 mm.
Make sure the wiring connection is in the
correct direction.
Clamper
(field supply)
WARNING
This section is for authorized and licensed electrician/water system
installer only. Work behind the front plate secured by screws must only
be carried out under supervision of qualified contractor, installation
engineer or service person.

63
11.1.6 Installation of Network Adaptor and Base Pan Heater
Network Adaptor and Installation (Optional) 11.1.6.1
1. Open the Cabinet front plate and Cabinet top
plate, then connect the Network Adaptor Cable
to the CN-CNT connector on the printed circuit
board.
oPull the cable out of the Mono bloc unit so that
there is no pinching.
oIf an optional PCB has been install in the
Mono bloc unit, connect the CN-CNT
connector to Optional PCB.
2. Insert a flat head screwdriver into the slot on
the top of the adaptor and remove the cover.
Connect the other end of the CN-CNT cable
connector to the connector inside the adaptor.
3. On the wall near the Mono bloc unit, attach the
adaptor by screwing screws through the holes
in the back cover.
4. Pull the CN-CNT cable through the hole in the
bottom of the adaptor and re-attach the front
cover to the back cover.
5. Use the included cord clamp to fix the CN-CNT
cable to the wall.
Pull the cable around as shown in the diagram so
that external forces cannot act on the connector in
the adaptor.
Base Pan Heater (Optional) 11.1.6.2
It is strongly recommended to install a Base Pan Heater (optional) if the Mono bloc unit is installed in cold climate
area. Refer the Base Pan Heater (optional) installation instruction for details of installation.
Network Adaptor
cable
Network Adaptor cable
Without Optional PCB With Optional PCB
Slot
Connector
Screws
CN-CNT cable
(Take care not to
pinch the cable)
Cord clamp

64
11.1.7 Charging the Water
Make sure all the piping installations are properly
done before carry out below steps.
1 Take out the Cover by removing the 2
mounting screws to access to the Pressure
Relief Valve and Air Purge Valve.
2 Turn the plug on the Air Purge Valve outlet
anticlockwise by one complete turn from fully
closed position.
3 Set the Pressure Relief Valve level “DOWN”.
4 Start filling water (with pressure more than
0.1 MPa (1 bar)) to the Mono bloc unit via
water inlet. Stop filling water if the free water
flow through Pressure Relief Valve drain hose.
5 Turn ON the power supply and make sure
Water Pump is running.
6 Check and make sure no water leaking at the
tube connecting points.
7 Reinstall the Cover by tightening the 2
mounting screws.
11.1.8 Reconfirmation
WARNING
Be sure to switch off all power supply before performing each of
the below checkings. Before obtaining access to terminals, all
supply circuits must be disconnected.
Check Water Pressure *(0.1 MPa 11.1.8.1
= 1 bar)
Water pressure should not lower than 0.05 MPa (with
inspects the Water Pressure Gauge). If necessary add
tap water into the water circuit.
Check Pressure Relief Valve 11.1.8.2
Check for correct operation of Pressure Relief
Valve by turning on the lever to become horizontal.
If you do not hear a clacking sound (due to water
drainage), contact your local authorized dealer.
Push down the lever after finish checking.
In case the water keeps drained out from the unit,
switch off the system, and then contact your local
authorized dealer.
Expansion Vessel Pre Pressure 11.1.8.3
Checking
[Upper limit water volume of the system]
The Mono bloc unit has a build-in Expansion Vessel
with 6 L air capacity and initial pressure of 1 bar.
Without antifreeze agent condition
Total amount of water in the system should be below
150 L.
If the total amount of water is more than 150 L, please
add expansion vessel (field supply).
With antifreeze agent condition
In the case of using antifreeze agent, expansion rate ɛ
is different depending on its maker.
Please refer to the antifreeze agent maker for the
expansion rate ɛbefore calculate the upper limit water
volume of the system.
The expansion vessel capacity required for the system
can be calculated from the formula below.
[Adjustment of the initial pressure of the expansion
vessel when there is a difference in installation height]
If the height difference between the Mono bloc unit
and the highest point of the system water circuit (H) is
more than 7m, please adjust the initial pressure of the
expansion vessel (Pg) according to the following
formula.
Pg= (H*10+30) kPa
Mounting
screws
Cover g
A
ir purge valve b
Plug (tu
r
n
anticlockwise by
one complete
turn)
Pressure relief valve a
Pressure
relief valve a
Lever
Tu r n d o w n
or
Pressure relief
valve a
Lever
Tu r n dow n
Pressure relief valve a
V : Required gas volume <expansion vessel volume L>
Vo : System total water volume <L>
: Expansion rate 5
→
60˚C = (depends on antifreeze
agent used)
P
1
: Expansion tank filling pressure = (100) kPa
P
2
: System maximum pressure = 300 kPa
-( ) Please confirm at actual place
-The gas volume of the sealed type expansion vessel is presented by <V
>
It’s advised to add 10% margin for required gas volume of calculation.
V = x
Vo
1 - 98 +
P
1
98 + P
2
з
з

65
Check RCCB 11.1.8.4
Ensure the RCCB set to “ON” condition before check
RCCB 2.
Turn on the power supply to the Mono bloc unit.
This testing could only be done when power is
supplied to the Mono bloc unit.
WARNING
Be careful not to touch parts other than RCCB test button when
the power is supplied to Mono bloc unit. Else, electrical shock
may happen.
Push the “TEST” button on the RCCB. The lever
would turn down and indicate “0”, if it functions
normal.
Contact authorized dealer if the RCCB
malfunction.
Turn off the power supply to the Mono bloc unit.
If RCCB functions normal, set the lever to “ON”
again after testing finish.
This product contains fluorinated greenhouse gasses.
Refrigerant type : R410A (GWP=2088)
For WH-MDC05H3E5
Amount : 1.30 kg (2.7144 ton CO2equivalent)
For WH-MDC07H3E5 & WH-MDC09H3E5
Amount : 1.35 kg (2.8188 ton CO2equivalent)
11.1.9 Test Run
1. Before test run, make sure below items have been
checked:-
oPipework are properly done.
oElectric cable connecting work are properly
done.
oMono bloc unit is filled up with water and
trapped air is released.
2. Antifreeze agent must be added into water circuit
to prevent freezing of water when outdoor ambient
temperatures is low. Recommended antifreeze:
Propylene glycol: 40% (equivalent to -20°C)
3. Set ON to the Mono bloc unit and RCCB. Then,
for remote control operation please refers to
(Mono bloc) Air-to-Water Heatpump’s operation
instruction.
4. For normal operation, pressure gauge reading
should be in between 0.05 MPa and 0.3 MPa.
5. After test run, please clean the Water filter.
Reinstall it after finish cleaning.
Check Water Flow of Water 11.1.9.1
Circuit
Confirm the maximum water flow during main pump
operation not less than 15 l/min.
*Water flow can be check through service setup
(Pump Max Speed)
[Heating operation at low water temperature with
lower water flow may trigger “H75” during defrost
process.]
Reset Overload Protector 11.1.9.2
Overload Protector serves the safety purpose to
prevent the water over heating. When the Overload
Protector trip at high water temperature, take below
steps to reset it.
1. Take out the cover.
2. Use a test pen to push the centre button gently in
order to reset the Overload Protector.
3. Fix the cover to the original fixing condition.
11.1.10 Maintenance
In order to ensure optimal performance of the unit,
seasonal inspections on the unit, functional check
of RCCB, field wiring and piping have to be
carried out at regular intervals. This maintenance
should be carried out by authorized dealer.
Maintenance for Water Filter 11.1.10.1
Set
1. Remove the Cover by loosening the mounting
screws to access to the Water Filter Set.
2. Turn OFF power supply.
3. Set the two valves for the Water Filter Set to
“CLOSE”.
4. Take off the clip, then gently pull out the mesh.
Beware of small amount water drain out from it.
5. Clean the mesh with warm water to remove all the
stain. Use soft brush if necessary.
6. Reinstall the mesh to the Water Filter Set and set
back the clip on it.
7. Set the two valves for the Water Filter Set to
“OPEN”.
8. Turn ON power supply.
9. After cleaning, reinstall the Cover by tightening the
mounting screws properly.
WARNING
Do not add or replace other than R410A type. It may cause
product damage, burst, injury and etc. Use compatible
R410A tools for refrigerant piping work and refrigerant
charging during installation or servicing.
Use test
pen to push
this button
for reset
Overload
protector 0.
Mounting
screws
Cover g

66
11.2 Variation of system
This section introduces variation of various systems using Air-To-Water Heatpump and actual setting method.
11.2.1 Introduce application related to temperature setting.
Temperature setting variation for heating 11.2.1.1
1. Remote Controller
Connect floor heating or radiator directly to the Mono bloc.
This is the basic form of the most simple system.
2. Room Thermostat
Connect floor heating or radiator directly to the Mono bloc.
Install the remote controller in the room where floor heating is installed.
This is an application that uses remote controller as Room Thermostat.
3. External Room Thermostat
Connect floor heating or radiator directly to Mono bloc.
Install separate external Room Thermostat (field supply) in the room where floor heating is installed.
This is an application that uses external Room Thermostat.
Mono bloc
Floor heating
Mono bloc
or
Setting of remote controller
Installer setting
System setup
Optional PCB connectivity - No
Zone & Sensor:
Water temperature
Mono bloc Mono bloc receive Room Thermo signal
(ON/OFF) from Remote controller to
control HP and circulation pump.
There is a build-in thermistor in the
remote controller.
Floor heating
Mono bloc
or
Setting of remote controller
Installer setting
System setup
Optional PCB connectivity - No
Zone & Sensor:
Room thermostat
Internal
Mono bloc
Room
thermostat
(Field supply)
Floor heating
Mono bloc
or
Setting of remote controller
Installer setting
System setup
Optional PCB connectivity - No
Zone & Sensor:
Room thermostat
(External)

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4. Room Thermistor
Connect floor heating or radiator directly to Mono bloc.
Install separate external room thermistor (specified by Panasonic) in the room where floor heating is installed.
This is an application that uses external room thermistor.
There are 2 kinds of circulation water temperature setting method.
Direct: set direct circulation water temperature (fixed value)
Compensation curve: set circulation water temperature depends on outdoor ambient temperature
In case of Room thermo or Room thermistor, compensation curve can be set.
In this case, compensation curve is shifted according to the thermo ON/OFF situation.
(Example) If room temperature increasing speed is;
very slow →shift up the compensation curve
very fast →shift down the compensation curve
Examples of installations 11.2.1.2
Floor heating 1 + Floor heating 2
Connect floor heating to 2 circuits through buffer tank as shown in the figure.
Install mixing valves, pumps and thermistors (specified by Panasonic) on both circuits.
Install the remote controller in one of the circuit and use it as Room Thermostat.
Install external Room Thermostat (field supply) in another circuit.
Both circuits can set circulation water temperature independently.
Install buffer tank thermistor on buffer tank.
It requires connection setting of buffer tank and ∆T temperature setting at heating operation separately.
This system requires optional PCB (CZ-NS4P).
or
Mono bloc
Max: 30m
Thermistor
Mono bloc compare between
room temperature and setting
temperature on the Remote
controller to control HP and
circulation pump.
Floor heating
Mono bloc Setting of remote controller
Installer setting
System setup
Optional PCB connectivity - No
Zone & Sensor:
Room thermistor
or
Mono bloc
Room
thermostat
(• eld supply)
Thermistor 2
Thermistor 1
Buffer tank
Pump 2
Pump 1
Mixing valve 2
Mixing valve 1
Mono bloc
Floor heating 2
Floor heating 1
Setting of remote controller
Installer setting
System setup
Optional PCB connectivity - Yes
Zone and Sensor - 2 Zone system
Zone 1:Sensor
Room thermostat
Internal
Zone 2:Sensor
Room
Room thermostat
(External)

68
Floor heating + Radiator
Connect floor heating or radiator to 2 circuits through buffer tank as shown in figure.
Install pumps and thermistors (specified by Panasonic) on both circuits.
Install mixing valve in the circuit with lower temperature among the 2 circuits.
(Generally, if install floor heating and radiator circuit at 2 zones, install mixing valve in floor heating circuit.)
For temperature setting, select circulation water temperature for both circuits.
Both circuits can set circulation water temperature independently.
Install buffer tank thermistor on buffer tank.
It requires connection setting of buffer tank and ∆T temperature setting at heating operation separately.
This system requires the optional PCB (CZ-NS4P).
Mind that if there is no mixing valve at the secondary side, the circulation water temperature may get higher than
setting temperature.
Floor heating + Swimming pool
Connect floor heating and swimming pool to 2 circuits through buffer tank as shown in figure.
Install mixing valves, pumps and thermistors (specified by Panasonic) on both circuits.
Then, install additional pool heat exchanger, pool pump and pool sensor on pool circuit.
Install the remote controller in room where floor heating is installed. Circulation water temperature of floor heating
and swimming pool can be set independently.
Install buffer tank sensor on buffer tank.
It requires connection setting of buffer tank and ∆T temperature setting at heating operation separately. This system
requires the optional PCB (CZ-NS4P).
Must connect swimming pool to “Zone 2”.
If it is connected to swimming pool, operation of pool will stop when “Cooling” is operated.
Mono bloc
Radiator
Thermistor1
Thermistor 2
Buffer tank
Pump 2
Pump 1
Mixing valve 1
Mono bloc
Floor heating
or
Setting of remote controller
Installer setting
System setup
Optional PCB connectivity - Yes
Zone and Sensor - 2 Zone system
Zone 1:Sensor
Water temperature
Zone 2:Sensor
Room
Water temperature
Mono bloc
Thermistor 1 Heat EXT
Thermistor 3
Thermistor 2
Buffer tank
Pump 2
Pump 3
Pump 1
Mixing
valve 1
Mixing
valve 2
Mono bloc
Floor heating 1 Swimming pool
or
Setting of remote controller
Installer setting
System setup
Optional PCB connectivity - Yes
Zone and Sensor - 2 Zone system
Zone 1:Sensor
Room thermostat
Internal
Zone 2
Swimming pool
T

69
Swimming pool only
This is an application that connects to the swimming pool only.
Connects pool heat exchanger directly to Mono bloc without using buffer tank.
Install pool pump and pool sensor (specified by Panasonic) at secondary side of the pool heat exchanger.
Install the remote controller in room where floor heating is installed.
Temperature of swimming pool can be set independently.
This system requires the optional PCB (CZ-NS4P).
In this application, cooling mode cannot be selected. (not display on remote controller)
Simple 2 zone (Floor heating + Radiator)
This is an example of simple 2 zone control without using buffer tank.
Built-in pump from Mono bloc served as a pump in zone 1.
Install mixing valve, pump and thermistor (specified by Panasonic) on zone 2 circuit.
Please be sure to assign high temperature side to zone 1 as temperature of zone 1 cannot be adjusted.
Zone 1 thermistor is required to display temperature of zone 1 on remote controller.
Circulation water temperature of both circuits can be set independently.
(However, temperature of high temperature side and low temperature side cannot be reversed)
This system requires the optional PCB (CZ-NS4P).
(CAUTION)
Thermistor 1 does not affect operation directly. But error happens if it is not installed.
Please adjust flow rate of zone 1 and zone 2 to be in balance. If it is not adjusted correctly, it may affects
the performance.
(If zone 2 pump flow rate is too high, there is possibility that no hot water flowing to zone 1.)
Flow rate can be confirmed by “Actuator Check” from maintenance menu.
Thermistor
Pump
Swimming pool
Heat EXT
Mono bloc
Mono bloc
or
Setting of remote controller
Installer setting
System setup
Optional PCB connectivity - Yes
Zone and Sensor - 1 Zone system
Zone :Swimming pool
T
Floor heating
Thermistor 2
Thermistor 1
Pump 2
Mixing valve
Mono bloc
Mono bloc
Radiator
or
Setting of remote controller
Installer setting
System setup
Optional PCB connectivity - Yes
Zone and Sensor - 2 Zone system
Zone 1:Sensor
Water temperature
Zone 2:Sensor
Room
Water temperature
Operation setup
Heat
T for heating ON – 1°C
Cool
T for cooling ON – 1°C

70
11.2.2 Introduce applications of system that uses optional equipment.
DHW (Domestic Hot Water) Tank connection
This is an application that connects the DHW tank to the Mono bloc through 3-way valve.
DHW tank’s temperature is detected by tank thermistor (specified by Panasonic).
Tank + Solar connection
This is an application that connects the DHW tank to the Mono bloc through 3-way valve before connect the solar
water heater to heat up the tank. DHW tank’s temperature is detected by tank thermistor (specified by Panasonic).
Solar panel’s temperature is detected by solar thermistor (specified by Panasonic).
DHW tank shall use tank with built-in solar heat exchange coil independently.
Heat accumulation operates automatically by comparing the temperature of tank thermistor and solar thermistor.
During winter season, solar pump for circuit protection will be activated continuously. If does not want to activate the
solar pump operation, please use glycol and set the anti-freezing operation start temperature to -20°C.
This system requires optional PCB (CZ-NS4P).
Mono bloc
Tank
Tank thermistor
3-way valve for tank
Booster heater
Mono bloc
Floor heating
or
Setting of remote controller
Installer setting
System setup
Optional PCB connectivity - No
Tank connection - Yes
Mono bloc
Tank
Tank thermistor
3-way valve for tank
Solar pump
Floor heating
Solar thermistor
or
Mono bloc
Setting of remote controller
Installer setting
System setup
Optional PCB connectivity - Yes
Tank connection - Yes
Solar connection - Yes
DHW tank
T turn ON
T turn OFF
Antifreeze
Hi limit

71
Buffer tank connection
This is an application that connects the buffer tank to the Mono bloc.
Buffer tank’s temperature is detected by buffer tank thermistor (specified by Panasonic).
This system requires optional PCB (CZ-NS4P).
Buffer tank + Solar
This is an application that connects the buffer tank to the Mono bloc before connecting to the solar water heater to
heat up the tank.
Buffer tank’s temperature is detected by buffer tank thermistor (specified by Panasonic).
Solar panel’s temperature is detected by solar thermistor (specified by Panasonic).
Buffer tank shall use tank with built-in solar heat exchange coil independently.
During winter season, solar pump for circuit protection will be activated continuously. If does not want to activate the
solar pump operation, please use glycol and set the anti-freezing operation start temperature to -20°C.
Heat accumulation operates automatically by comparing the temperature of tank thermistor and solar thermistor.
This system requires optional PCB (CZ-NS4P).
or
Mono bloc
Thermistor
Buffer tank
Pump
Mono bloc
Floor heating
Setting of remote controller
Installer setting
System setup
Optional PCB connectivity - Yes
Buffer Tank connection - Yes
T for buffer tank
Setting of remote controller
Installer setting
System setup
Optional PCB connectivity - Yes
Buffer Tank connection - Yes
T for buffer tank
Solar connection - Yes
Buffer tank
T turn ON
T turn OFF
Antifreeze
Hi limit
Solar thermistor
Thermistor
Solar pump
Mixing valve
Floor heating
Pump
Buffer tank
Mono bloc
Mono bloc
or

72
Boiler connection
This is an application that connects the boiler to the Mono bloc, to compensate for insufficient capacity by operate
boiler when outdoor temperature drops & heat pump capacity is insufficient.
Boiler is connected parallel with heat pump against heating circuit.
There are 3 modes selectable by remote controller for boiler connection.
Besides that, an application that connects to the DHW tank’s circuit to heat up tank’s hot water is also possible.
(Operation setting of boiler shall be responsible by installer.)
This system requires optional PCB (CZ-NS4P).
Depending on the settings of the boiler, it is recommended to install buffer tank as temperature of circulating water
may get higher. (It must connect to buffer tank especially when selecting Advanced Parallel setting.)
WARNING
Panasonic is NOT responsible for incorrect or unsafe situation of the boiler system.
CAUTION
Make sure the boiler and its integration in the system complies with applicable legislation.
Make sure the return water temperature from the heating circuit to the indoor unit does NOT exceed 55°C.
Boiler is turned off by safety control when the water temperature of the heating circuit exceed 85°C.
or
Thermistor
Boiler
Mixing
valve
Floor heating
Pump
Buffer tank
Mono bloc
Mono bloc
Setting of remote controller
Installer setting
System setup
Optional PCB connectivity - Yes
Bivalent - Yes
Turn ON: outdoor temp
Control pattern