Toshiba MMW-AP0271LQ-E User manual

English
Indoor Unit
Model name:
Hot Water Module
MMW-AP0271LQ-E
MMW-AP0561LQ-E
Remote controller
RBC-AMT32E
RBC-AMS41E
TCB-CC163TLE2
TCB-SC642TLE2
TCB-EXS21TLE
HOT WATER MODULE (MULTI TYPE)
Installation Manual
For commercial use

–1–
Original instruction
Contents
1 Precautions for safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2 Accessory parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3 System control of Hot Water Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
4 Selection of installation place. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
5 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
6 Water piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
7 Drain piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
8 Refrigerant piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
9 Electrical connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
10 Applicable controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
11 Test run . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
12 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
13 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
14 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
Please read this Installation Manual carefully before installing the hot water module.
• This Manual describes the installation method of the hot water module.
• For installation of the outdoor unit, follow the Installation Manual attached to the outdoor unit.
ADOPTION OF NEW REFRIGERANT
This Hot Water Module uses R410A an environmentally friendly refrigerant.
1-EN 2-EN

–2–
Thank you for purchasing this Toshiba Hot Water Module.
Please read carefully through these instructions that contain important information, and ensure that you understand
them.
After completing the installation work, hand over this Installation Manual and Owner’s Manual as well as the
Owner’s Manual attached to the outdoor unit provided with the outdoor unit to the user, and ask the user to keep
them in a safe place for future reference.
Generic Denomination: Hot Water Module
Definition of Qualified Installer or Qualified Service Person
The hot water module must be installed, maintained, repaired and removed by a qualified installer or qualified
service person. When any of these jobs is to be done, ask a qualified installer or qualified service person to do them
for you.
A qualified installer or qualified service person is an agent who has the qualifications and knowledge described in
the table below.
Agent Qualifications and knowledge which the agent must have
Qualified installer
• The qualified installer is a person who installs, maintains, relocates and removes the air conditioners
(including the hot water modules) made by Toshiba Carrier Corporation. He or she has been trained
to install, maintain, relocate and remove the air conditioners (including the hot water modules) made
by Toshiba Carrier Corporation or, alternatively, he or she has been instructed in such operations by
an individual or individuals who have been trained and is thus thoroughly acquainted with the
knowledge related to these operations.
• The qualified installer who is allowed to do the electrical work involved in installation, relocation and
removal has the qualifications pertaining to this electrical work as stipulated by the local laws and
regulations, and he or she is a person who has been trained in matters relating to electrical work on
the air conditioners (including the hot water modules) made by Toshiba Carrier Corporation or,
alternatively, he or she has been instructed in such matters by an individual or individuals who have
been trained and is thus thoroughly acquainted with the knowledge related to this work.
• The qualified installer who is allowed to do the refrigerant handling and piping work involved in
installation, relocation and removal has the qualifications pertaining to this refrigerant handling and
piping work as stipulated by the local laws and regulations, and he or she is a person who has been
trained in matters relating to refrigerant handling and piping work on the air conditioners (including the
hot water modules) made by Toshiba Carrier Corporation or, alternatively, he or she has been
instructed in such matters by an individual or individuals who have been trained and is thus thoroughly
acquainted with the knowledge related to this work.
• The qualified installer who is allowed to work at heights has been trained in matters relating to working
at heights with the air conditioners (including the hot water modules) made by Toshiba Carrier
Corporation or, alternatively, he or she has been instructed in such matters by an individual or
individuals who have been trained and is thus thoroughly acquainted with the knowledge related to
this work.
Qualified service
person
• The qualified service person is a person who installs, repairs, maintains, relocates and removes the
air conditioners (including the hot water modules) made by Toshiba Carrier Corporation. He or she
has been trained to install, repair, maintain, relocate and remove the air conditioners (including the hot
water modules) made by Toshiba Carrier Corporation or, alternatively, he or she has been instructed
in such operations by an individual or individuals who have been trained and is thus thoroughly
acquainted with the knowledge related to these operations.
• The qualified service person who is allowed to do the electrical work involved in installation, repair,
relocation and removal has the qualifications pertaining to this electrical work as stipulated by the local
laws and regulations, and he or she is a person who has been trained in matters relating to electrical
work on the air conditioners (including the hot water modules) made by Toshiba Carrier Corporation
or, alternatively, he or she has been instructed in such matters by an individual or individuals who have
been trained and is thus thoroughly acquainted with the knowledge related to this work.
• The qualified service person who is allowed to do the refrigerant handling and piping work involved in
installation, repair, relocation and removal has the qualifications pertaining to this refrigerant handling
and piping work as stipulated by the local laws and regulations, and he or she is a person who has
been trained in matters relating to refrigerant handling and piping work on the air conditioners
(including the hot water modules) made by Toshiba Carrier Corporation or, alternatively, he or she has
been instructed in such matters by an individual or individuals who have been trained and is thus
thoroughly acquainted with the knowledge related to this work.
• The qualified service person who is allowed to work at heights has been trained in matters relating to
working at heights with the air conditioners (including the hot water modules) made by Toshiba Carrier
Corporation or, alternatively, he or she has been instructed in such matters by an individual or
individuals who have been trained and is thus thoroughly acquainted with the knowledge related to
this work.
Definition of Protective Gear
When the hot water module is to be transported, installed, maintained, repaired or removed, wear protective gloves
and ‘safety’ work clothing.
In addition to such normal protective gear, wear the protective gear described below when undertaking the special
work detailed in the table below.
Failure to wear the proper protective gear is dangerous because you will be more susceptible to injury, burns,
electric shocks and other injuries.
Warning indications on the hot water module
CAUTION
• This is the part for transportation. Be sure to remove this part before
operating the unit.
CAUTION
• To avoid water leak, wrap some sealing tape around the screw part.
Work undertaken Protective gear worn
All types of work Protective gloves
‘Safety’ working clothing
Electrical-related
work
Gloves to provide protection for electricians and from heat
Insulating shoes
Clothing to provide protection from electric shock
Work done at heights
(50 cm or more) Helmets for use in industry
Transportation of
heavy objects Shoes with additional protective toe cap
Repair of outdoor unit Gloves to provide protection for electricians and from heat
Warning indication Description
WARNING
ELECTRICAL SHOCK HAZARD
Disconnect all remote electric power
supplies before servicing.
WARNING
ELECTRICAL SHOCK HAZARD
Disconnect all remote
electric power supplies
before servicing.
3-EN 4-EN

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1Precautions for safety
The manufacturer shall not assume any liability for the damage caused
by not observing the description of this manual.
WARNING
General
• Before starting to install the hot water module, read through the
Installation Manual carefully, and follow its instructions to install the
hot water module.
• Only a qualified installer or service person is allowed to do installation
work. Inappropriate installation may result in water leakage, electric
shock or fire.
• Do not use any refrigerant different from the one specified for
complement or replacement. Otherwise, abnormally high pressure
may be generated in the refrigeration cycle, which may result in a
failure or explosion of the product or an injury to your body.
• Before opening the front panel of the hot water module or service
panel of the outdoor unit, set the circuit breaker to the OFF position.
Failure to set the circuit breaker to the OFF position may result in
electric shocks through contact with the interior parts. Only a qualified
installer (*1) or qualified service person (*1) is allowed to remove the
front panel of the hot water module or service panel of the outdoor
unit and do the work required.
• Before carrying out the installation, maintenance, repair or removal
work, set the circuit breaker to the OFF position. Otherwise, electric
shocks may result.
• Place a “Work in progress” sign near the circuit breaker while the
installation, maintenance, repair or removal work is being carried out.
There is a danger of electric shocks if the circuit breaker is set to ON
by mistake.
• Only a qualified installer (*1) or qualified service person (*1) is
allowed to undertake work at heights using a stand of 50 cm or more
or to remove the front panel of the hot water module to undertake
work.
• Wear protective gloves and safety work clothing during installation,
servicing and removal.
• Do not touch the plate heat exchanger of the unit. You may injure
yourself if you do so. If the plate heat exchanger must be touched for
some reason, first put on protective gloves and safety work clothing,
and then proceed.
• Do not climb onto or place objects on top of the outdoor unit. You may
fall or the objects may fall off of the outdoor unit and result in injury.
• When work is performed at heights, use a ladder which complies with
the ISO 14122 standard, and follow the procedure in the ladder’s
instructions. Also wear a helmet for use in industry as protective gear
to undertake the work.
• Before other parts of the outdoor unit, set the circuit breaker to OFF
without fail, and place a “Work in progress” sign near the circuit
breaker before proceeding with the work.
• Before working at heights, put a sign in place so that no-one will
approach the work location, before proceeding with the work. Parts
and other objects may fall from above, possibly injuring a person
below. While carrying out the work, wear a helmet for protection from
falling objects.
• The refrigerant used by this hot water module is the R410A.
• The hot water module must be transported in stable condition. If any
part of the product is broken, contact the dealer.
• When the hot water module must be transported by hand, carry it by
two or more people.
• Do not move or repair any unit by yourself. There is high voltage
inside the unit. You may get electric shock when removing the cover
and main unit.
Selection of installation location
• When the hot water module is installed in a small room, provide
appropriate measures to ensure that the concentration of refrigerant
leakage occur in the room does not exceed the critical level.
• Do not install in a location where flammable gas leaks are possible. If
the gas leak and accumulate around the unit, it may ignite and cause
a fire.
• To transport the hot water module, wear shoes with additional
protective toe caps.
• To transport the hot water module, do not take hold of the bands
around the packing carton. You may injure yourself if the bands
should break.
• The hot water module has been designed to be fitted at floor level.
5-EN 6-EN

–4–
Installation
• Install the hot water module securely in a location where the base can
sustain the weight adequately. If the strength is not enough, the unit
may fall down resulting in injury.
• Follow the instructions in the Installation Manual to install the hot
water module. Failure to follow these instructions may cause the
product to fall down or topple over or give rise to noise, vibration,
water leakage or other trouble.
• Carry out the specified installation work to guard against the
possibility of earthquake. If the hot water module is not installed
appropriately, a unit may topple over or fall down, causing an
accident.
• If refrigerant gas has leaked during the installation work, ventilate the
room immediately. If the leaked refrigerant gas comes in contact with
fire, noxious gas may generate.
• Use forklift to carry in the hot water module units and use winch or
hoist at installation of them.
• Helmet must be worn to protect your head from falling objects.
Especially, when you work under an inspection opening, helmet must
be worn to protect your head from falling objects from the opening.
• The unit can be accessed from the service panel.
Refrigerant piping
• Install the refrigerant pipe securely during the installation work before
operating the hot water module. If the compressor is operated with
the valve open and without refrigerant pipe, the compressor sucks air
and the refrigeration cycles is over pressurized, which may cause a
injury.
• Tighten the flare nut with a torque wrench in the specified manner.
Excessive tighten of the flare nut may cause a crack in the flare nut
after a long period, which may result in refrigerant leakage.
• After the installation work, confirm that refrigerant gas does not leak.
If refrigerant gas leaks into the room and flows near a fire source,
such as a cooking range, noxious gas may be generated.
• When the hot water module has been installed or relocated, follow the
instructions in the Installation Manual and purge the air completely so
that no gases other than the refrigerant will be mixed in the
refrigerating cycle. Failure to purge the air completely may cause the
hot water module to malfunction.
• Nitrogen gas must be used for the airtight test.
• The charge hose must be connected in such a way that it is not slack.
Water piping
• Do not install water pipes in the location which is not exposed to low
ambient temperature which could result in water circuit freezing.
Electrical wiring
• Only a qualified installer (*1) or qualified service person (*1) is
allowed to carry out the electrical work of the hot water module. Under
no circumstances must this work be done by an unqualified individual
since failure to carry out the work properly may result in electric
shocks and / or electrical leaks.
• To connect the electrical wires, repair the electrical parts or undertake
other electrical jobs, wear gloves to provide protection for electricians
and from heat, insulating shoes and clothing to provide protection
from electric shocks. Failure to wear this protective gear may result in
electric shocks.
• Use wiring that meets the specifications in the Installation Manual and
the stipulations in the local regulations and laws. Use of wiring which
does not meet the specifications may give rise to electric shocks,
electrical leakage, smoking and / or a fire.
• Connect earth wire. (Grounding work)
Incomplete grounding causes an electric shock.
• Do not connect earth wires to gas pipes, water pipes, and lightning
conductor or telephone earth wires.
• After completing the repair or relocation work, check that the earth
wires are connected properly.
• Install a circuit breaker that meets the specifications in the installation
manual and the stipulations in the local regulations and laws.
• Install the circuit breaker where it can be easily accessed by the
agent.
• When installing the circuit breaker outdoors, install one which is
designed to be used outdoors.
• Under no circumstances the power wire must not be extended.
Connection trouble in the places where the wire is extended may give
rise to smoking and / or a fire.
• Electrical wiring work shall be conducted according to law and
regulation in the community and installation manual.
Failure to do so may result in electrocution or short circuit.
7-EN 8-EN

–5–
Test run
• Before operating the hot water module after having completed the
work, check that the electrical parts box cover (the front panel) of the
hot water module and service panel of the outdoor unit are closed,
and set the circuit breaker to the ON position. You may receive an
electric shock if the power is turned on without first conducting these
checks.
• If there is any kind of trouble (such as an error display has appeared,
smell of burning, abnormal sounds, the hot water module fails to heat
or water is leaking) has occurred in the hot water module, do not
touch the hot water module yourself but set the circuit breaker to the
OFF position, and contact a qualified service person. Take steps to
ensure that the power will not be turned on (by marking “out of
service” near the circuit breaker, for instance) until qualified service
person arrives. Continuing to use the hot water module in the trouble
status may cause mechanical problems to escalate or result in
electric shocks or other trouble.
• After the work has finished, use an insulation tester set (500 V
Megger) to check the resistance is 1 MΩor more between the charge
section and the non-charge metal section (Earth section). If the
resistance value is low, a disaster such as a leak or electric shock is
caused at user’s side.
• Upon completion of the installation work, check for refrigerant leaks
and check the insulation resistance and water drainage. Then
conduct a test run to check that the hot water module is operating
properly.
Explanations given to user
• Upon completion of the installation work, tell the user where the circuit
breaker is located. If the user does not know where the circuit breaker
is, he or she will not be able to turn it off in the event that trouble has
occurred in the hot water module.
• If the fan grille is damaged, do not approach the outdoor unit but set
the circuit breaker to the OFF position, and contact a qualified service
person (*1) to have the repairs done. Do not set the circuit breaker to
the ON position until the repairs are completed.
Relocation
• Only a qualified installer (*1) or qualified service person (*1) is
allowed to relocate the hot water module. It is dangerous for the hot
water module to be relocated by an unqualified individual since a fire,
electric shocks, injury, water leakage, noise and / or vibration may
result.
• When carrying out the pump-down work shut down the compressor
before disconnecting the refrigerant pipe. Disconnecting the
refrigerant pipe with the service valve left open and the compressor
still operating will cause air or other gas to be sucked in, raising the
pressure inside the refrigeration cycle to an abnormally high level,
and possibly resulting in rupture, injury or other trouble.
CAUTION
New Refrigerant hot water module Installation
•THIS HOT WATER MODULE ADOPTS THE NEW HFC
REFRIGERANT (R410A) WHICH DOES NOT DESTROY OZONE
LAYER.
• The characteristics of R410A refrigerant are; easy to absorb water,
oxidizing membrane or oil, and its pressure is approx. 1.6 times
higher than that of refrigerant R22. Accompanied with the new
refrigerant, refrigerating oil has also been changed. Therefore, do not
let water, dust, former refrigerant, or refrigerating oil enter the
refrigerating cycle during installation work.
• To prevent charging an incorrect refrigerant and refrigerating oil, the
sizes of connecting sections of charging port of the main unit and
installation tools are changed from those for the conventional
refrigerant.
• Accordingly the exclusive tools are required for the new refrigerant
(R410A).
• For connecting pipes, use new and clean piping designed for R410A,
and please care so that water or dust does not enter.
To Disconnect the Appliance from Main Power Supply.
• This appliance must be connected to the main power supply by
means of a switch with a contact separation of at least 3 mm.
The installation fuse (all types can be used) must be used for the
power supply line of this hot water module.
(*1) Refer to the “Definition of Qualified Installer or Qualified Service Person.”
9-EN 10-EN

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2Accessory parts
Part name Qty Shape Usage
Installation Manual 1 This manual
(Hand over to customers)
(For other languages that do not appear in this Installation Manual,
please refer to the enclosed CD-R.)
Owner’s Manual 1 —
(Hand over to customers)
(For other languages that do not appear in the Owner’s Manual,
please refer to the enclosed CD-R.)
CD-ROM 1 — Installation Manual, Owner’s Manual
Heat insulator
1 For heat insulation of Gas pipe connecting section
1 For heat insulation of Liquid pipe connecting section
11-EN 12-EN

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3System control of Hot Water Module
System able to be combined
The hot water module is connectable to only SMMS-i (Super Modular Multi system).
The system does not work when it connect to the MiNi-SMMS, SMMS (5,6 HP) and SHRM-i cannot be connected.
The Fresh Air Intake type and Air to Air Heat Exchanger with DX Coil cannot be connected with the same refrigerant system.
* When hot water module units and standard indoor units are not operated simultaneously.
▼Capacity code of hot water module
• For the hot water module, the capacity code is decided at each model. (Table 1)
Table 1
The capacity code of the hot water module is different from the capacity code of the standard indoor unit.
NOTE
Compared with the capacity code of the outdoor unit, the total value of capacity codes of the connectable indoor units (including hot water module) differs based on the height difference between the indoor units (including hot water module).
• When the height difference between the indoor units (including hot water module) is 15 m or less: Up to 115 % (including hot water module) of the capacity code (Equivalent to HP) of the outdoor unit (Equivalent to HP) of the outdoor unit.
• When the height difference between the indoor units (including hot water module) is over 15 m: Up to 105 % (including hot water module) of the capacity code.
No. Item SMMS-i with
Hot Water Module connection
SMMS-i without
Hot Water Module connection
1 System capacity 48 HP 48 HP
2 No. of outdoor units connected 44
3 Indoor connection capacity
Max. 115 %
(including Hot Water Module) 135 %
Min. 65 %
(excluding Hot Water Module) 50 %
4 Hot Water Module connection capacity per refrigerant system Max. 2 units and 50 % or less -
5Height
difference
Hight between outdoor and indoor units (including hot water module)
H1
H2 > 3 m Upper outdoor units 50 m
See Figure 1
50 m
Lower outdoor units 30 m 30 m
H2 ≤3 m Upper outdoor units 70 m 70 m
Lower outdoor units 40 m 40 m
Hight between indoor units (including hot water module)
H2, H4, H5
Indoor - Indoor
H2
Upper outdoor units 3 m (*40) 40 m
Lower outdoor units 10 m (*40)
Indoor - Hot water module
H5
Upper outdoor units 3 m (*40) -
Lower outdoor units 10 m (*40) -
Hot water module -
Hot water module
H4
Upper outdoor units 3 m -
Lower outdoor units 3 m -
Hot Water Module - Hot Water Module Max. 3 m -
Hot water module model Capacity code
Equivalent to HP Equivalent to capacity
MMW-AP0271LQ-E 2.5 7.1
MMW-AP0561LQ-E 5 14
13-EN 14-EN

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▼Figure 1
HWM : Hot Water Module
<Upper outdoor units> <Lower outdoor units>
HWM
HWM
Header unit For hot water module connections, height difference restrictions between standard
indoor units (H2), between HWM units (H4), and between standard indoor units and
HWM units (H5)
H3≤5 m
H2≤3m*1
H5≤3m
*1
H4≤3m
Standard
indoor unit
Standard
indoor unit
*1:When HWM units and standard indoor units are not
operated simultaneously, H2 and H5 ≤40 m.
If H2 or H5 > 3 m, H1 shall be max. 50 m.
H1:Height difference between outdoor units and indoor units
(including HWM)
H2:Height difference between standard indoor units
H3:Height difference between outdoor units
H4:Height difference between HWMs
H5:Height difference between standard indoor units and
HWMs
H1
(Outdoor units
installed higher
than indoor units)
H2,H5≤3m:70m
Standard
indoor unit
HWM
HWM
Header unit
H3≤5m
H2≤10 m *1
H5≤10 m
*1
H4≤3m
Standard
indoor unit
H1
(Outdoor units
installed lower than
indoor units)
H2,H5>3 m:30 m
H2,H5≤3m:40m
Standard
indoor unit
Standard
indoor unit
*1:When HWM units and standard indoor units are not operated simultaneously, H2 and H5 ≤40 m.
H1:Height difference between outdoor units and indoor units (including HWM)
H2:Height difference between standard indoor units
H3:Height difference between outdoor units
H4:Height difference between HWMs
H5:Height difference between standard indoor units and HWMs
15-EN 16-EN

–9–
Example of Installation for Hot Water Module water piping
NOTE
• To install the hot water module, connect the pump and line heater.
• Do not connect more than one hot water module to one pump and one line heater.
• Be sure to install one pump and one line heater to one hot water module as shown in the following examples.
HWM : Hot Water Module
Sample 1.
HWM
M
Isolating
valve
Diverting
3-Way valve
Air vent
valve
Isolating
valve
Strainer
(30 to 40
meshes)
Isolating
valve
Pump
Procured locally
Auxiliary
heat
source
Booster
Heater
Direct Buffer Tank
for Space Heating
Heater
Auxiliary
heat source
* Locally procure and install protective devices such as the heater and pump.
Line
Heater
Crucial
heat
source
Isolating
valve
Cold water feed
Sanitary hot water use
For heating applications
(Fan coils, radiators, under floor)
Indirect Sanitary
Hot Water Tank
Within 5 m
17-EN 18-EN

–10–
HWM : Hot Water Module
Sample 2.
HWM : Hot Water Module
Sample 3.
HWM
Isolating
valve
Air vent valve
Isolating
valve
Strainer
(30 to 40
meshes)
Isolating
valve
Pump
Procured locally Auxiliary heat
source
Booster
Heater
Direct Buffer Tank
for Space Heating
Line
Heater
Crucial
heat
source
Isolating
valve
For heating applications
(Fan coils, radiators, under
floor)
* Locally procure and install protective devices such as the heater and pump.
Within 5 m
HWM
Isolating
valve
Air vent valve
Isolating
valve
Strainer
(30 to 40
meshes)
Isolating
valve
Pump
Procured locally
Auxiliary
heat source
Line
Heater
Crucial
heat
source
Isolating
valve
Cold water feed
Heater
Sanitary hot water use
* Locally procure and install protective devices such as the heater and pump.
Indirect Sanitary
Hot Water Tank
Within 5 m
19-EN 20-EN

–11–
4Selection of installation place
Avoid installing in the following places
Select a location for the indoor unit where the cool or warm air will circulate evenly.
Avoid installation in the following kinds of locations.
• Saline area (coastal area)
• Locations with acidic or alkaline atmospheres (such as areas with hot springs, factories where chemicals or
pharmaceuticals are made and places where the exhaust air from combustion appliances will be sucked into the
unit).
Doing so may cause the heat exchanger and other parts to become corroded.
• Locations with atmospheres with mist of cutting oil or other types of machine oil.
Doing so may cause the heat exchanger to become corroded, mists caused by the blockage of the heat
exchanger to be generated, the plastic parts to be damaged, the heat insulators to peel off, and other such
problems to result.
• Locations where vapors from food oils are formed (such as kitchens where food oils are used).
The plastic parts to be damaged, and other such problems to result.
• Locations where an in-house power generator is used for the power supply.
The power line frequency and voltage may fluctuate, and the hot water module may not work properly as a result.
• On truck cranes, ships or other moving conveyances.
• The hot water module must not be used for special applications (such as for storing food, plants, precision
instruments or art works).
(The quality of the items stored may be degraded.)
• Locations where high frequencies are generated (by inverter equipment, in-house power generators, medical
equipment or communication equipment).
(Malfunctioning or control trouble in the hot water module or noise may adversely affect the equipment’s
operation.)
• Locations where there is anything under the unit installed that would be compromised by wetness.
(If the drain has become blocked or when the humidity is over 85 %, condensation from the hot water module
will drip, possibly causing damage to anything underneath.)
• In the case of the wireless type of system, rooms with the inverter type of fluorescent lighting or locations
exposed to direct sunlight.
(The signals from the wireless remote controller may not be sensed.)
• Locations where organic solvents are being used.
• The hot water module cannot be used for liquefied carbonic acid cooling or in chemical plants.
• Location near doors or windows where the hot water module may come into contact with high-temperature, high-
humidity outdoor air.
(Condensation may occur as a result.)
• Locations where special sprays are used frequently.
• Places where iron or other metal dust is present. If iron or other metal dust adheres to or collects on the interior
of the hot water module, it may spontaneously combust and start a fire.
• Locations such as living rooms and bedrooms where you can easily be bothered by noise. Noise may become
a problem.
CAUTION
• Do not install hot water module in a place where water freezes.
• Do not install the hot water module in a place where combustible gas
may leak.
• Do not install the hot water module in a place exposed to rain or
water.
• Do not install the hot water module near equipment which generates
heat.
• Do not install the hot water module to a movable object.
• Do not install the hot water module in a place exposed to vibration.
• The hot water module must be installed in accordance with national
wiring regulation.
• The hot water module must not be installed in a high humidity
condition area.
21-EN 22-EN

–12–
Installation atmosphere
Installation atmosphere of the unit is as follows. Be careful of installation atmosphere.
It becomes a cause of failure of a product by dewing or freezing.
Installation space (Unit: mm)
Reserve sufficient space required for installation or service work.
Installation atmosphere
Dry-bulb temp. (°C) 5 to 32
Wet-bulb temp. (°C) 24 (Max.)
RH (%) 30 to 85
Allowable dew point
(°C Wet-bulb temp) 23 or less
0
10
20
30
40
50
60
70
80
90
0 5 10 15 20 25 30 3532
85
Relative humidity (%)
Dry bulb temperature (°C)
Permissible rang
Front side
200 or more
50 or more
500 or more
1000 or more
200 or more
50 or more
Front side
5Installation
CAUTION
Strictly comply with the following rules to prevent damage of the hot
water modules and human injury.
• Do not put a heavy article on the hot water module or let a person get
on it. (Even units are packaged)
• Carry in the hot water module as it is packaged if possible. If carrying
in the hot water module unpacked by necessity, use buffering cloth or
other material to not damage the unit.
• To move the hot water module, hold the bottom face of the unit only.
Do not apply force to the other parts (refrigerant pipe, drain pan, water
pipe, foamed parts, resin parts or other parts).
• Carry the package by two or more persons, and do not bundle it with
plastic band at positions other than specified.
• To protect yourself from injury, always use PPE (Personal Protective
Equipment), that is, wear gloves.
• Install the Hot water module in a place strong enough to withstand the
following weights:
Hot water module weight with no water 17.8 kg (027) 20.3 kg (056)
Hot water module weight with full water 18.4 kg (027) 21.6 kg (056)
23-EN 24-EN

–13–
External dimensions (Unit: mm)
25
467
250
15
40033.5 33.5
50
16050
435 16
16
40
50
110
80
15
580
25
62.5
25.5
1.5
18
50
50
74
19
165 50
60 269
225 95
73
76174
65
Anchor
bolt hole
pitch
Anchor bolt hole pitch
4-14×12
Long hole
Refrigerant pipe
connecting port
Ø15.9 Gas side
3-Ø26
Power supply
wiring port
Control wiring port
External signal
wiring port
Refrigerant pipe
connecting port
Ø9.5 Liquid side
R1-1/4 (PT1-1/4Screw)
Water Outlet
R1-1/4(PT1-1/4Screw)
Water Inlet
R1 (PT1 Screw) Drain
Fixing the hot water module
to floor
WARNING
•Be sure to install the hot
water module in a place able
to bear its weight.
If strength is insufficient, the unit
may fall down resulting in
human injury.
•Perform specified installation
work to protect earthquakes.
If the hot water module is
imperfectly installed, an
accident by falling or dropping
may be caused.
CAUTION
• Drain water is discharged from
the hot water module.
(Especially while operating)
Install the hot water module in a
place with good drainage.
• For installation, be careful of the
strength and level of the
foundation so that abnormal
sounds (vibration or noise) are
not generated.
• Be sure to install the hot water module in a place
strong enough to withstand its weight. If the base is
unstable, reinforce with a concrete base.
• The hot water module must be anchored on a level
surface. Use a level to check after installation.
• If the hot water module is installed near a room
where noise is a problem, using an anti-vibration
stand on the base of the unit is recommended.
1. Fix the hot water module with M8 anchor bolts at 4
positions. 20 mm projection is appropriate for an
anchor bolt.
(Unit: mm)
• Anchor bolt positions are as shown below:
(Unit: mm)
20
M8 anchor bolt 4 positions/unit
160
435
14×12 long hole
25-EN 26-EN

–14–
REQUIREMENT
• Fix the unit in a horizontal position.
When unit is fixed to slant, it may cause overflow of drainage.
• Install the unit within the dimension according to the figure below.
• Use level gauge or vinyl hose to confirm whether the unit is fix horizontally.
Remove the part for transportation
Be sure to remove the transportation part before operating the unit.
Front view
0 to 5 mm
Set the drain pipe connecting port
side within 5 mm lower than
opposite side.
Side view
± 5 mm
Set the front and air back sides are
within 5 mm with each other.
Transportation part
27-EN 28-EN

–15–
6Water piping
WARNING
• Install water pipes according to the regulations of respective
countries.
• Install water pipes in the freeze-free place.
• Make sure that water pipes have sufficient pressure resistance. The
design pressure is 1.0 MPa.
CAUTION
• Do not use zinc plated water pipes. When steel pipes are used,
insulate both ends of the pipes.
• Copper pipes are recommended.
• The water to be used must meet the water quality standard specified
in EN directive 98/83 EC.
Water piping and line heater installation
• Make the piping route a closed circuit. (An open water circuit may cause a failure.)
• Before a long period of none use, purge the water out of the pipes and thoroughly let them dry.
Do not add brine to the circulating water.
• Do not use the water used for the unit for drinking or food manufacturing.
• To insure easy maintenance, inspection, and replacement of the unit, use a proper joint, valve, etc (procured
locally) on the water inlet and outlet port.
• Be sure to install a strainer with 30 to 40 meshes (procured locally) on the water inlet pipe. If a strainer is not
installed, this may cause impaired performance, or damage to the plate heat exchanger from freezing.
• Install a suitable air vent (procured locally) on the water pipe. After sending water through the pipe, be sure to
vent the excess air.
• To avoid water leak, wrap some sealing tape around the screw part.
• Water pipes can get very hot, depending on the preset temperature. Wrap the water pipes with heat insulation
(procured locally) to prevent burns.
• Be sure to install the line heater (procured locally) on the water inlet side. In addition, position it within 5 m of the
water inlet pipe of the hot water module.
• Follow the table below to select a line heater (procured locally) within the range of 40 to 50 % of the hot water
module's rated capacity.
Hot water module model name Capacity of line heater (kW)
MMW-AP0271LQ-E 3.2~4.0
MMW-AP0561LQ-E 6.4~8.0
Pipe size, material and insulator
The following specification for piping work and insulating process are procured locally.
Model MMW- AP027 AP056
Connecting pipe
(unit side) Water pipe Inlet R1-1/4
Outlet R1-1/4
Connecting pipes material Copper pipes are recommended
Insulator Formed polyethylene foam, thickness: 10 mm or more
Water outlet R1-1/4 Air vent valve
Isolating Valve
Water inlet R1-1/4 Strainer Crucial heater source Pump
Line
Heater
29-EN 30-EN

–16–
Characteristics of hot water module flow rate and pressure loss
The following graph shows the range of flow rates used for the hot water module, and the characteristic pressure losses. Use this as an aid in the local pump procurement process.
027type Min. Rated Max.
Water flow rate (L/min) 19.5 22.9 26.3
Pressure loss (kPa) 28.5 40.5 53.5
056type Min. Rated Max.
Water flow rate (L/min) 38.9 45.8 52.6
Pressure loss (kPa) 35.2 44.2 58.2
20
25
30
35
40
45
50
55
60
19 20 21 22 23 24 25 26 27
Pressure loss (kPa)
Flow rate (L/min)
25
30
35
40
45
50
55
60
65
35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55
Pressure loss (kPa)
Flow rate (L/min)
31-EN 32-EN

–17–
7Drain piping
CAUTION
•Following the Installation Manual, perform the drain piping work
so that water is properly drained. Apply a heat insulation so as
not to cause a dew condensation.
Inappropriate piping work may result in water leakage in the
room and wet furniture.
•After opening the knockout hole, deburr the edge.
Burrs adhered to opening of the knockout hole may causes an injury
by touching it.
Drain piping
• Provide the indoor drain piping with proper heat insulation.
• Provide the area where the pipe connects to the indoor unit with proper heat insulation. Improper heat insulation
will cause condensation to form.
• The drain pipe must be sloping downward (at an angle of 1/100 or more), and do not run the pipe up and down
(arched shape) or allow it to form traps. Doing so may cause abnormal sounds.
• Restrict the length of the traversing drain pipe to 20 meters or less. For a long pipe, provide support brackets at
intervals of 1.5 to 2 meters to prevent flapping.
• Install the collective piping as shown in the following figure.
• Do not provide any air vents. Otherwise, the drain water will spout, causing water to leak.
• Do not allow any force to be applied to the connection area with the drain pipe.
• To avoid water leak, wrap some sealing tape around the screw part.
• Drain connection is made from steel. Do not connect the joint pipe made from stainless steel.
Pipe material, size and insulator
The following materials for piping work and insulating process are procured locally.
Pipe material Hard vinyl chloride pipe, VP25A (Nominal outer diameter 32 mm)
Insulator Foamed polyethylene foam, thickness: 10 mm or more
Support bracket As long as possible (Appox. 10 cm)
Downward slope
1/100 or more
Drain connection R1
(steel)
1.5 m to 2 m
Connecting drain pipe
Wrap some sealing tape around the screw part to avoid water leak.
REQUIREMENT
• Connect the hard vinyl chloride pipes certainly so that water does not leak by using adhesive agent for vinyl
chloride.
• It takes some time to dry and indurate the adhesive agent. (Refer to the manual of adhesive agent.) Do not apply
any extra force on the connecting section until the adhesive agent dried.
Check the draining
In the test run, check that water drain is properly performed and water does not leak from the connecting part of
the pipes. Check draining also when installed in heating period.
Check the water drainage is surely performed at the trial operation.
Check also no water leakage is found at the pipe connecting part.
REQUIREMENT
Enter water gradually using a kettle or a hose from drain pan of the discharge port.
CAUTION
Pour water slowly.
If it is poured urgently, water is spread inside of the indoor unit resulted
in a trouble.
Drain pipe
Water entering
Front panel
33-EN 34-EN

–18–
Heat insulating process
• After drain check, covering the heat insulator for drain connecting section, wrap the drain pipe with heat insulator
(Locally procured) without clearance from the end of the drain pipe connecting port of the hot water module.
Check the following contents
To cover the pipe and the hot water module with
a heat insulator, do not make a space between
them.
Heat insulator
PVC pipe
Fix the insulator with adhesive tape
Heat insulator
(locally procured)
(locally procured)
(locally procured)
Unit
Water outlet
Water inlet
Drain
To avoid water leak, wrap
some sealing tape around
the screw part.
8Refrigerant piping
CAUTION
When the refrigerant pipe is long,
provide support brackets at
intervals of 2.5 m to 3 m to clamp
the refrigerant pipe. Otherwise,
abnormal sound may be
generated.
Use the flare nut attached with
the indoor unit or R410A flare nut.
Permissible piping length and
height difference
They vary depending on the outdoor unit. For details,
refer to the Installation Manual attached to the outdoor
unit, and this manual (Refer to "3. System control of
Hot Water Module").
Pipe size
Connecting refrigerant piping
Flaring
1Cut the pipe with a pipe cutter.
Remove burrs completely. (Remaining burrs may
cause gas leakage.)
2Insert a flare nut into the pipe, and flare the
pipe.
Use the flare nut provided with the unit or the one
used for the R410A refrigerant. The flaring
dimensions for R410A are different from the ones
used for the conventional R22 refrigerant. A new
flare tool manufactured for use with the R410A
refrigerant is recommended, but the conventional
tool can still be used if the projection margin of the
copper pipe is adjusted to be as shown in the
following table.
Projection margin in flaring: B (Unit: mm)
Flaring diameter size: A (Unit: mm)
* In case of flaring for R410A with the conventional
flare tool, pull it out approx. 0.5 mm more than that
for R22 to adjust to the specified flare size. The
copper pipe gauge is useful for adjusting projection
margin size.
• The sealed gas was sealed at the atmospheric
pressure so when the flare nut is removed, there will
no “whooshing” sound: This is normal and is not
indicative of trouble.
• Use two wrenches to connect the indoor unit pipe.
Model MMW- Pipe size (mm)
Gas side Liquid side
AP027 to AP056 Ø15.9 Ø9.5
Outer dia. of
copper pipe R410A tool used Conventional tool used
6.4, 9.5 0 to 0.5 1.0 to 1.5
12.7, 15.9
Outer dia. of copper pipe A +0
–0.4
6.4 9.1
9.5 13.2
12.7 16.6
15.9 19.7
Work using double spanner
35-EN 36-EN

–19–
• Use the tightening torque levels as listed in the table
below.
• Tightening torque of flare pipe connections.
Pressure of R410A is higher than that of R22.
(Approx. 1.6 times) Therefore, using a torque
wrench, tighten the flare pipe connecting sections
which connect the indoor and outdoor units of the
specified tightening torque.
Incorrect connections may cause not only a gas leak,
but also a trouble of the refrigeration cycle.
CAUTION
Tightening with an excessive
torque may crack the nut
depending on installation
conditions.
Airtight test / air purge, etc.
For air tightness test, adding refrigerant, refer to the
Installation Manual attached to the outdoor unit.
CAUTION
Do not supply power to the indoor
unit and the hot water module
until the airtight test and
vacuuming are completed. (If the
indoor unit or the hot water
module is powered on, the pulse
motor valve is fully closed, which
extends the time for vacuuming.)
Open the valve fully
Open the valve of the outdoor unit fully.
Heat insulation process
Apply heat insulation for the pipes separately at liquid
side and gas side.
• For the heat insulation to the pipes at gas side, use
the material with heat-resisting temperature 120 °C
or higher.
• To use the attached heat insulation pipe, apply the
heat insulation to the pipe connecting section of the
hot water module securely without gap.
REQUIREMENT
• Apply the heat insulation to the pipe connecting
section of the hot water module securely up to the
root without exposure of the pipe. (The pipe exposed
to the outside causes water leak.)
• Wrap heat insulator with its slits facing up (ceiling
side).
Installation of remote
controller (Sold separately)
For installation of the wired remote controller, follow the
Installation Manual attached with the remote controller.
• Pull out the remote controller cord together with the
refrigerant pipe or drain pipe.
Pass the remote controller cord through upper side
of the refrigerant pipe and drain pipe.
• Do not leave the remote controller at a place
exposed to the direct sunlight and near a stove.
Outer dia. of connecting
pipe (mm) Tightening torque (N•m)
6.4 14 to 18 (1.4 to 1.8 kgf•m)
9.5 33 to 42 (3.3 to 4.2 kgf•m)
12.7 50 to 62 (5.0 to 6.2 kgf•m)
15.9 63 to 77 (6.3 to 7.7 kgf•m)
Hot water module
Union
Heat insulation pipe
(Accessory)
Banding band
(locally procured)
Heat insulator of
the pipe
Flare nut
9Electrical connection
WARNING
•Use the specified wires for
wiring connect the terminals.
Securely fix them to prevent
external forces applied to the
terminals from affecting the
terminals.
Incomplete connection or
fixation may cause a fire or
other trouble.
•Connect earth wire.
(grounding work)
Incomplete grounding cause an
electric shock.
Do not connect earth wires to
gas pipes, water pipes, lightning
conductor or telephone earth
wires.
•Appliance shall be installed
in accordance with national
wiring regulations.
Capacity shortage of power
circuit or incomplete installation
may cause an electric shock or
a fire.
CAUTION
• If incorrect / incomplete wiring is
carried out, it will cause an
electrical fire or smoke.
• Install an earth leakage breaker
that is not tripped by shock
waves.
If an earth leakage breaker is
not installed, an electric shock
may be caused.
• Use the cord clamps attached to
the product.
• Do not damage or scratch the
conductive core and inner
insulator of power and inter-
connecting wires when peeling
them.
• Use the power cord and Inter-
connecting wire of specified
thickness, type, and protective
devices required.
• Do not connect 220 V – 240 V
power to the terminal blocks ( ,
, , ) for control wiring and
the terminal blocks (COM, S1,
S2, S3, S4, S5) for output
function. (Otherwise, the
system will fail.)
• Do not damage or scratch the
conductive core and inner
insulator of power and inter-
connecting wires when peeling
them.
• Perform the electric wiring so
that it does not come to contact
with the high-temperature part
of the pipe.
The coating may melt resulting
in an accident.
U 1
U 2
A
B
37-EN 38-EN