Toshiba Carrier TCB-IFDMR01UP-UL User manual

SERVICE MANUAL
AIR-CONDITIONER
(OPTION KIT)
VRF DX-COIL INTERFACE Advance
Model name:
Dx-coil controller
TCB-IFDMR01UP-UL
(Terminal block with relay)
Dx-valve kit
RBM-A0601UPVA-UL
RBM-A1201UPVA-UL
RBM-A1921UPVA-UL
•For the outdoor unit, refer to the service manual of the Super Modular Multi System.
•For the Air Handling Unit contact the manufacturer you made the purchase.
•TOSHIBA Carrier does not take any responsibility on the local design.
FILE NO. SVM-23024-1
Revised on Apr, 2023

CONTENTS
1. OVERVIEW ..................................................................................
2. CONSTRUCTION VIEWS (EXTERNAL VIEWS)..........................
3. WIRING DIAGRAMS....................................................................
4. REFRIGERANT CYCLE DIAGRAM ............................................
4-1. TC1, TC2 and TCJ sensor position on DX COIL ............................................................
4-2. Refrigerant circuit diagram ..............................................................................................
4-3. Piping size and Y-joint ......................................................................................................
4-4. Allowable length and allowable height difference of refrigerant piping......................
4-5. Installation temperature sensor .....................................................................................
5. PARTS RATING ...........................................................................
6. CONTROL OUTLINE ...................................................................
7. INPUT AND OUTPUT PORT .......................................................
7-1. Dx-coil controller Print Circuit Board ..............................................................................
7-2. Test run ..............................................................................................................................
7-3. Input and Output specification ........................................................................................
7-4. Method to set the AHU function DN code .......................................................................
7-5. Troubleshooting based on information displayed on remote controller .....................
8. TROUBLESHOOTING .................................................................
8-1. Overview ............................................................................................................................
8-2. Troubleshooting Method ..................................................................................................
9. EXPLODED VIEWS AND PARTS LIST .....................................
10
14
16
17
17
18
20
21
22
23
25
33
33
35
36
49
53
56
56
57
63
- 2 -

Generic Denomination: Air Conditioner
Definition of Qualified Installer or Qualified Service Person
The air conditioner 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.
A qualified installer or qualified service person is an agent who has the qualifications and knowledge
described in the table below.
•The qualified service person is a person who installs, repairs, maintains, relocates and removes
the air conditioners made by Manufacturer. He or she has been trained to install, repair, maintain,
relocate and remove the air conditioners made by Manufacturer 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 made by Manufacturer 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 made by Manufacturer 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 made by Manufacturer 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 is a person who installs, maintains, relocates and removes the air
conditioners made by Manufacturer. He or she has been trained to install, maintain, relocate and
remove the air conditioners made by Manufacturer 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 made by Manufacturer 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 made by Manufacturer 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 made by Manufacturer 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 installer
Qualified service
person
Agent Qualifications and knowledge which the agent must have
- 3 -

Definition of Protective Gear
When the VRF Dx-coil interface 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.
Work undertaken
All types of work Protective gloves
‘Safety’ working clothing
Gloves to provide protection from electric shock
Insulating shoes
Clothing to provide protection from electric shock
Helmets for use in industry
Shoes with additional protective toecap
Gloves to provide protection for electricians
Electrical-related work
Work done at heights
(20''(50 cm) or more)
Transportation of heavy objects
Repair
Protective gear worn
Indication Explanation
DANGER Indicates contents assumed that an imminent danger causing a death or serious injury of
the repair engineers and the third parties when an incorrect work has been executed.
Indicates possibilities assumed that a danger causing a death or serious injury of the
repair engineers, the third parties, and the users due to troubles of the product after work
when an incorrect work has been executed.
Indicates contents assumed that an injury or property damage (*) may be caused on the
repair engineers, the third parties, and the users due to troubles of the product after work
when an incorrect work has been executed.
WARNING
CAUTION
Indication Explanation
Indicates prohibited items (Forbidden items to do)
The sentences near an illustrated mark describe the concrete prohibited contents.
Indicates mandatory items (Compulsory items to do)
The sentences near an illustrated mark describe the concrete mandatory contents.
Indicates cautions (Including danger / warning)
The sentences or illustration near or in an illustrated mark describe the concrete cautious contents.
The important contents concerned to the safety are described on the product itself and on this Service
Manual.
Please read this Service Manual after understanding the described items thoroughly in the following contents
(Indications / Illustrated marks), and keep them.
[Explanation of indications]
* Property damage: Enlarged damage concerned to property, furniture, and domestic animal / pet
[Explanation of illustrated marks]
- 4 -

PRECAUTIONS FOR SAFETY
The manufacturer shall not assume any liability for the damage caused by not observing the description of this
manual.
DANGER
Tu r n o f f
breaker
Electric
shock hazard
Prohibition
If, in the course of carrying out repairs, it becomes absolutely necessary to check out the electrical
parts with the electrical parts box cover of one or more the VRF Dx-coil interface removed in order to
find out exactly where the trouble lies, wear insulated heat-resistant gloves, insulated boots and
insulated work overalls, and take care to avoid touching any live parts. You may receive an electric
shock if you fail to heed this warning. Only qualified service person is allowed to do this kind of work.
Stay on
protection
Before carrying out the installation, maintenance, repair or removal work, be sure to set the circuit
breaker to the OFF position. Otherwise, electric shocks may result.
Before opening the electrical box cover, 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 or qualified service person is allowed to remove the electrical box
cover
When cleaning the filter (sold separately) or other parts of the indoor 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.
When you have noticed that some kind of trouble (such as when a check display has appeared, there is
a smell of burning, abnormal sounds are heard, the air conditioner fails to cool or heat or water is
leaking) has occurred in the air conditioner, do not touch the air conditioner 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 air conditioner in the trouble status may cause
mechanical problems to escalate or result in electric shocks or other failure.
When you repair electric parts, wait for about five minutes after turning off the breaker. Do not start repairing
immediately.Otherwise you may get electric shock by touching terminals of high-voltage capacitors. Natural
discharge of the capacitor takes about five minutes.
When checking the electric parts, removing the cover of the electric parts box of the VRF Dx-coil
interface inevitably to determine the failure, use gloves to provide protection for electricians, insulating
shoes, clothing to provide protection from electric shock and insulating tools. Be careful not to touch the
live part. Electric shock may result. Only “Qualified service person” is allowed to do this work.
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.
When checking the electric parts, removing the cover of the electric parts box of the VRF Dx-coil
interface inevitably to determine the failure, put a sign “Do not enter” around the site before the work.
Failure to do this may result in third person getting electric shock.
Before operating the air conditioner after having completed the work, check that the electrical parts box
cover of the VRF Dx-coil interface is 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.
- 5 -

WARNING
General
Before starting to repair the VRF Dx-coil interface, read carefully through the Service Manual,
and repair the air conditioner by following its instructions.
Only qualified service person is allowed to repair the VRF Dx-coil interface.
Repair of the VRF Dx-coil interface by unqualified person may give rise to a fire, electric shocks,
injury, water leaks and / or other problems.
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.
Only a qualified installer or qualified service person is allowed to carry out the electrical work of the
VRF Dx-coil interface.
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.
When the VRF Dx-coil interface is to be transported, installed, maintained, repaired or removed, wear
protective gloves and ‘safety’ work clothing.
To connect the electrical wires, repair the electrical parts or undertake other electrical jobs, wear gloves
to provide protection for electricians, insulating shoes and clothing to provide protection from electric
shocks. Failure to wear this protective gear may result in electric shocks.
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.
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.
Only a qualified installer or qualified service person is allowed to undertake work at heights
using a stand of 20"(50 cm)or more.
When working 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 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.
When executing address setting, test run, or troubleshooting on the electric parts box, put on insulated
gloves to provide protection from electric shock. Otherwise you may receive an electric shock.
Do not climb onto or place objects on top of the VRF Dx-coil interface.
You may fall or the objects may fall off of the VRF Dx-coil interface and result in injury.
When transporting the VRF Dx-coil interface, wear shoes with protective toecaps, protective gloves
and other protective clothing.
When transporting the VRF Dx-coil interface, do not take hold of the bands around the packing carton.
You may injure yourself if the bands should break.
A weight, such as the compressor unit (more than 22Ibs(10 kg)), please make sure to carry two persons.
This VRF Dx-coil interface has passed the pressure test as specified in UL 60335-2-40 Annex EE.
Before troubleshooting or repair work, check the earth wire is connected to the earth terminals of the main unit,
otherwise an electric shock is caused when a leak occurs. If the earth wire is not correctly connected,
contact an electric engineer for rework.
After completing the repair or relocation work, check that the ground wires are connected properly.
Be sure to connect earth wire. (Grounding work) Incomplete grounding causes an electric shock.
Do not connect ground wires to gas pipes, water pipes, and lightning rods or ground wires for
telephone wires.
Check earth
wires.
- 6 -

Prohibition of
modification.
Use specified
parts.
Do not modify the products. Do not also disassemble or modify the parts.
It may cause a fire, electric shock or injury.
When any of the electrical parts are to be replaced, ensure that the replacement parts satisfy the
specifications given in the Service Manual (or use the parts contained on the parts list in the
Service Manual).
Use of any parts which do not satisfy the required specifications may give rise to electric shocks,
smoking and / or a fire.
Do not bring
a child close
to the
equipment.
Insulating
measures
No fire
Refrigerant
If, in the course of carrying out repairs, it becomes absolutely necessary to check out the electrical
parts with the electrical parts box cover of one or more of the VRF Dx-coil interface removed in order
to find out exactly where the trouble lies, put a sign in place so that no-one will approach the work
location before proceeding with the work. Third-party individuals may enter the work site and receive
electric shocks if this warning is not heeded.
Connect the cut-off lead wires with crimp contact, etc., put the closed end side upward and then apply
a water-cut method, otherwise a leak or production of fire is caused at the users’ side.
When performing repairs using a gas burner, replace the refrigerant with nitrogen gas because the oil
that coats the pipes may otherwise burn.
When repairing the refrigerating cycle, take the following measures.
1) Be attentive to fire around the cycle. When using a gas stove, etc., be sure to put out fire before work;
otherwise the oil mixed with refrigerant gas may catch fire.
2) Do not use a welder in the closed room. When using it without ventilation, carbon monoxide
poisoning may be caused.
3) Do not bring in flammables close to the refrigerant cycle, otherwise fire of the welder may catch the
in flammables.
The refrigerant used by this VRF Dx-coil interface is the R410A.
Check the used refrigerant name and use tools and materials of the parts which match with it.
For the products which use R410A refrigerant, the refrigerant name is indicated at a position on the
outdoor unit where is easy to see. To prevent miss-charging, the route of the service port is changed
from one of the former R22.
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.
For an air conditioner which uses R410A, never use other refrigerant than R410A. For an air
conditioner which uses other refrigerant (R22, etc.), never use R410A.
If different types of refrigerant are mixed, abnormal high pressure generates in the refrigerating cycle
and an injury due to breakage may be caused.
When the VRF Dx-coil interface 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 air conditioner to malfunction.
To add the refrigerant, follow the Installation Manual and Service Manual of the outdoor unit.
When recharging the refrigerant in the refrigerating cycle, do not mix the refrigerant or air other than
R410A into the specified refrigerant. If air or others is mixed with the refrigerant, abnormal high
pressure generates in the refrigerating cycle resulted in cause of injury due to breakage.
After installation work, check the refrigerant gas does not leak. If the refrigerant gas leaks in the room,
poisonous gas generates when gas touches to fire such as fan heater, stove or cocking stove though
the refrigerant gas itself is innocuous.
Never recover the refrigerant into the outdoor unit. When the equipment is moved or repaired, be sure
to recover the refrigerant with recovering device.
The refrigerant cannot be recovered in the outdoor unit; otherwise a serious accident such as breakage
or injury is caused.
- 7 -

Assembly /
Wiring
After repair work, surely assemble the disassembled parts, and connect and lead the removed wires
as before. Perform the work so that the electrical box cover does not catch the inner wires.
If incorrect assembly or incorrect wire connection was done, a disaster such as a leak or fire is
caused at user’s side.
Insulator
check
Ventilation
After the work has finished, be sure to 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 position).
If the resistance value is low, a disaster such as a leak or electric shock is caused at user’s side.
When the refrigerant gas leaks during work, execute ventilation.
If the refrigerant gas touches to a fire, poisonous gas generates. A case of leakage of the refrigerant
and the closed room full with gas is dangerous because a shortage of oxygen occurs. Be sure to
execute ventilation.
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.
After installation work, check the refrigerant gas does not leak. If the refrigerant gas leaks in the room,
poisonous gas generates when gas touches to fire such as fan heater, stove or cocking stove though
the refrigerant gas itself is innocuous.
Compulsion
When the refrigerant gas leaks, find up the leaked position and repair it surely.
If the leaked position cannot be found up and the repair work is interrupted, reclaim and tighten the
service valve, otherwise the refrigerant gas may leak into the room.
The poisonous gas generates when gas touches to fire such as fan heater, stove or cocking stove though
the refrigerant gas itself is innocuous.
When installing equipment which includes a large amount of charged refrigerant in a sub-room, it is
necessary that the concentration does not the limit even if the refrigerant leaks.
If the refrigerant leaks and exceeds the limit concentration, an accident of shortage of oxygen is caused.
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.
Nitrogen gas must be used for the airtight test.
The charge hose must be connected in such a way that it is not slack.
For the installation / moving / reinstallation work, follow to the Installation Manual.
If an incorrect installation is done, a trouble of the refrigerating cycle, water leak, electric shock or fire is caused.
Check after
repair
Once the repair work has been completed, check for refrigerant leaks, and check the insulation
resistance and water drainage.
Then perform a trial run to check that the air conditioner is running properly.
After repair work has finished, check there is no trouble. If check is not executed, a fire, electric shock
or injury may be caused. For a check, turn off the power breaker.
After repair work has finished, execute a test run to check there is no generation of smoke or abnormal sound.
If check is not executed, a fire or an electric shock is caused. Before test run, install the electrical box cover.
Be sure to fix the screws back which have been removed for installation or other purposes.
Do not operate
the unit with the
valve closed.
Check the following matters before a test run after repairing piping.
• Connect the pipes surely and there is no leak of refrigerant.
• The valve is opened.
Running the compressor under condition that the valve closes causes an abnormal high pressure
resulted in damage of the parts of the compressor and etc. and moreover if there is leak of refrigerant
at connecting section of pipes, the air is sucked and causes further abnormal high pressure resulted in
burst or injury.
Only a qualified installer or qualified service person is allowed to relocate the VRF Dx-coil
interface.It is dangerous for the air conditioner to be relocated by an unqualified individual since a
fire, electric shocks, injury,water leakage, noise and / or vibration may result.
Check the following items after reinstallation.
1) The earth wire is correctly connected.
2) The power cord is not caught in the product.
3) There is no inclination or unsteadiness and the installation is stable.
If check is not executed, a fire, an electric shock or an injury is caused.
When carrying out the reclaim 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, etc. to be sucked in, raising the pressure inside the refrigeration cycle to an
abnormally high level, and possibly resulting in reputing, injury, etc.
Check after
reinstallation
- 8 -

When the service panel of the outdoor unit is to be opened in order for the compressor or the area
around this part to be repaired immediately after the air conditioner has been shut down, set the circuit
breaker to the OFF position, and then wait at least 10 minutes before opening the service panel.
If you fail to heed this warning, you will run the risk of burning yourself because the compressor pipes
and other parts will be very hot to the touch. In addition, before proceeding with the repair work, wear
the kind of insulated heat-resistant gloves designed to protect electricians.
Take care not to get burned by compressor pipes or other parts when checking the cooling cycle while
running the unit as they get heated while running. Be sure to put on gloves providing protection for heat.
When the service panel of the outdoor unit is to be opened in order for the fan motor, reactor, inverter
or the areas around these parts to be repaired immediately after the air conditioner has been shut
down, set the circuit breaker to the OFF position, and then wait at least 10 minutes before opening the
service panel.
If you fail to heed this warning, you will run the risk of burning yourself because the fan motor, reactor,
inverter heat sink and other parts will be very hot to the touch.
In addition, before proceeding with the repair work, wear the kind of insulated heat-resistant gloves
designed to protect electricians.
Installation
Cooling check
Only a qualified installer or service person is allowed to do installation work. Inappropriate installation
may result in water leakage, electric shock or fire.
Before starting to install the VRF Dx-coil interface, read carefully through the Installation Manual,
and follow its instructions to install the VRF Dx-coil interface.
Be sure to use the company-specified products for the separately purchased parts. Use of non-
specified products may result in fire, electric shock, water leakage or other failure. Have the installation
performed by a qualified installer.
Do not supply power from the power terminal block equipped on the outdoor unit to another outdoor unit.
Capacity overflow may occur on the terminal block and may result in fire.
Do not install the VRF Dx-coil interface in a location that may be subject to a risk of expire to a combustible
gas. If a combustible gas leaks and becomes concentrated around the unit, a fire may occur.
Install the indoor unit at least 8'2''(2.5m)above the floor level since otherwise the users may
injure themselves or receive electric shocks if they poke their fingers or other objects into the
indoor unit while the air conditioner is running.
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 qualified service person.
If you install the unit in a small room, take appropriate measures to prevent the refrigerant from
exceeding the limit concentration even if it leaks. Consult the dealer from whom you purchased the air
conditioner when you implement the measures. Accumulation of highly concentrated refrigerant may
cause an oxygen deficiency accident.
Do not place any combustion appliance in a place where it is directly exposed to the wind of air
conditioner, otherwise it may cause imperfect combustion.
Relocation
• Only a qualified installer or qualified service person is allowed to relocate the VRF Dx-coil interface. It is
dangerous for the air conditioner 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 reclaim 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, etc. to be sucked in, raising the pressure inside the refrigeration cycle to an abnormally high level,
and possibly resulting in reputing, injury,etc.
- 9 -

1. OVERVIEW
VRF Dx-coil interface is the product that is used with connecting the AHU with the DX COIL prepared on-site to
the Toshiba Carrier VRF outdoor unit.
*1. DX COIL: Abbreviation of the Direct expansion coil (heat exchanger).
*2. DDC: Abbreviation of the Direct Digital Controller.
*3. AHU: Abbreviation of the Air Handling Unit.
For the installation of the air handling unit, refer to the installation manual of the air handling unit.
• Dx-coil interface (DDC type use for Supply air temperature or TF type) cannot control the room temperature.
Example of the system configuration
TF type : The discharge temperature is set by the remote controller to control the capacity.
Main application target – Ventilation
VRF Dx-coil interface can connect to SMMS-u, SMMS-e and SHRM-e
In one cycle the outdoor unit and Dx-coil interface shall be one each for the structure.
For the AHU prepared on-site, please design with referring to submittal of AHU.
TA type : Enables to connect 3rd party indoor unit or air handing unit as one of VRF indoor unit.
Dx-coil controller
Outdoor unit
Remote
controller
DX-Valve kit
AHU
TC2
TA
TCJ
TC1
Dx-coil controller
Outdoor unit
Remote
controller
DX-Valve kit
AHU
TC2
TA
TCJ
TC1
TF
- 10 -

DDC type : Direct capacity control of Toshiba Carrier VRF outdoor unit by analogue input (0-10 V)
Mainly discharge air temperature control linked AHU system.
Dx-coil controller
Outdoor unit
Locally procured
DX-Valve kit
AHU
TC2
TA
TCJ
TC1
TF
DDC
• Diversity specification
Type SMMS-u SMMS-e SHRM-e
(communication) (TU2C-LINK or TCC LINK) (TCC-LINK)
TA type 60 - 110%
DDC type 75 - 100% x
TF type 80 - 100% x x
SMMS-u (MMY-MUP 1HT9 P / MMY-MUP 1HT6 P )
SMMS-e (MMY-MAP 6HT9 P / MMY-MAP 6HT6 P )
SHRM-e (MMY-MAP 6FT9 P / MMY-MAP 6FT6 P / MMY-MAP0726FT2P )
- 11 -

Dx coil type Normal (TA, TF, DDC type) Interfaced, Split face (TA type)
Type
Dx-coilcontroller
Dx-valve kit
HEX
number
Dx-coilcontroller Dx-valve kit
HEX
number
Model name
TCB-IFDMR01
UP-UL
RBM-
A0601UPV
A-UL
RBM-
A1201UPV
A-UL
RBM-
A1921UPV
A-UL
TCB-IFDMR01
UP-UL
RBM-
A0601UPV
A-UL
RBM-
A1201UPV
A-UL
RBM-
A1921UPV
A-UL
Connectable
Dx-coil
capacity
0.6 Ton 1 1 - - 1
0.8Ton 1 1 - - 1
1 Ton 1 1 - - 1
1.25 Ton 1 1 - - 1
1.5 Ton 1 1 - - 1
2 Ton 1 1 - - 1
2.25 Ton 1 1 - - 1
2.5 Ton 1 1 - - 1
3 Ton 1 1 - - 1
4 Ton 1 1 - - 1
4.5 Ton 1 1 - - 1
5 Ton 1 1 - - 1
6 Ton 1 - 1 - 1
8 Ton 1 - 1 - 1
10 Ton 1 - 1 - 1
12 Ton 1 - - 1 1 2 (6+6) - 2 - 2
14 Ton 1 - - 1 1 2 (8+6) - 2 - 2
16 Ton 1 - - 1 1 2 (8+8) - 2 - 2
18 Ton - - - - - 2 (10+8) - 2 - 2
20 Ton 1 - 2 - 1 2 (10+10) - 2 - 2
24 Ton 1 - - 2 1 3 (8+8+8) - 3 - 3
28 Ton 1 - - 2 1 2 (14+14) - - 2 2
3 (10+10+8) - 3 - 3
32 Ton 1 - - 2 1 2 (16+16) - - 2 2
36Ton 3(12+12+12)- - 3 3
38Ton 3(14+12+12)- - 3 3
40 Ton 3(14+14+12)- - 3 3
• Two or more AHU below 10 Ton combination is available.
• Two or more AHU over 12 Ton combination is available.
• Combination AHU below 10 Ton with VRF FCU below 8 Ton is available.
• Combination AHU over 12 Ton with VRF FCU is prohibited.
• For the AHU prepared on-site, please design with referring to submittal of AHU.
Please refer to the design guideline for details.
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Settings for each type (TA, TF, DDC)
Set with the SW501 switch on the control P.C. board MCC-1777.
TA type: Set all SW501 to OFF.
Turn off Bit3 of SW501.
TF type: Turn on only Bit2 of SW501.
Turn off Bit3 of SW501.
DDC type (0 - 10 V) Stepped Control: Turn on only Bit3 of SW501. (Refer to AI3 / AI3 for details)
DDC type (0 - 10 V) Linear Control: Turn on Bit3 and Bit4 of SW501. (Refer to AI3 / AI3 for details)
LED position and details
SW501
LED
12 4
3
SW501
ON
OFF
12 4
3
SW501
ON
OFF
12 4
3
SW501
ON
OFF
12 4
3
SW501
ON
OFF
D505 D504 D503 D501
P.C. board LED Meaning of lighting
D501 MCU power supply Lights when the power is turned on
D503 Main bus communication Flashes every 5 seconds.
With central control: lighting and flashing every 5 seconds.
D504 Sub bus communication Flashes every 5 seconds.
Group: lighting and flashing every 5 seconds.
D505 Mod bus communication When connected to Modbus, it lights up every 5 seconds.
D403 Sub bus power supply Sub bus lights while power is being supplied.
D403
LED
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2. CONSTRUCTION VIEWS (EXTERNAL VIEWS)
TCB-IFDMR01UP-UL
(Unit: in (mm))
Ground screw
Terminal block (3p)
(Power supply)
Clamp
(For power supply)
16.9" (430)
4-Ø 15/32" (12) Mounting wall
(Accessories No.11)
Sensor connection port
(Local connecting)
Terminal block
There are two types.
Passing Temperature
sensor leads, through
a clamp ter.
(TA, TC2, TF, TCJ, TC1)
CLABLE-GLAND (6 piece) • Installation space and maintenance space
Upper side when installed. Wall
Note)
• This product is designed for the indoor installation.
• If the temperature sensor is short, use the Optional Sensor
TCB-IFDES1001P-UL.(Temperature sensor with 10 m wiring length)
• If any conduits are not in use, Please apply silicone to cover the conduits.
• Before closing the conduits cover. wrap the wircs heat insulation.
(Accessories No.10)
15.7" (400)
0.8" (20)18" (460)
19.7" (500)
MCC-1777
0.5" (14.6)
Sensor (TC1, TC2, TCJ, TA,
TF)(accessory)
8" (200)
0.5" (13)
3.5" (90)
7.9" (200)
2-PG16
Power supply Output
Input Valve kit
Remote controller
inter-unit Sensor
4-PG13.5
19.7" (500) or more
Wall
Wall
2" (50 mm) or mor
Floor
2" (50 mm) or more
2" (50 mm) or more
7.9" (200) or mor
2"
(50) 2" (50) 4" (50) 2" (50) 2" (50) 2" (50) 2" (50)
Heat Insulation
(Accessory No.10)
Heat Insulation
(Accessory
No.10)
Heat Insulation
(Accessory
No.10)
Step 1 Step 2 Step 3
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RBM-A0601UPVA-UL, RBM-A1201UPVA-UL, RBM-A1921UPVA-UL
3.1" (80)
When xing the connection
cable with a cable tie, allow
a margin for the connection
cable on the terminal block
side. Cable tie (Accessories No.6)
Wire clamp
Pass the connection cable
through the wire clamp and
x it with a cable tie.
(Unit: in (mm))
Connection cable
(Factory wiring)
Refrigerant pipe connection port
(Liquid pipe / Outdoor unit side)
Refrigerant pipe connection port
(Liquid pipe / Air Handing unit side)
• Installation space and maintenance space
Upper side when installed.
Wall Wall
1.2" (30) or more
Floor
Wall
11.8" (300) or more
20" (500) or more
1.2" (30) or more
1.2" (30) or more
Note)
This product is designed for the indoor installation.
Model A (Pipe)
RBM-A0601UPVA-UL Ø3/8" (9.52)
RBM-A1201UPVA-UL Ø1/2" (12.7)
RBM-A1921UPVA-UL Ø5/8" (15.58)
0.6" (15)
4-Ø15/64" (6) Mounting hole
PMV motor
3.9" (99) 14" (360)
9.4" (240)
2.8" (70)
8.2" (209)
7" (179)
Terminal block (5p)
Connection cable
(Local wiring)
7.3" (186)
5.4" (138)
1.8" (45)
1.9" (49)
3.7" (95)
3.9" (99)
A
A
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3. WIRING DIAGRAMS
TCB-IFDMR01UP-UL (Terminal block with relay)
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*1: TF sensor can only be used with SMMS-u.
Example TA / TF*1 sensor position
1. Fresh Air Only 2. Outdoor Air (Fresh Air) mixed with Return Air
Fresh
Air
Return
Air
Supply
Air
Supply
Air
Fresh
Air
Return
Air
Supply
Air
Exhaust
Air
AHU AHU
AHU
TA sensor
position
Dx coil Fan Supply
TA sensor
position
Dx coil Fan Supply
Dx coil Fan Supply
Fan Return
Heat Recovery
Exchanger
3. Outdoor Air (Fresh Air) mixed with Return Air by Heat Recovery Exchanger
Fresh
Air
TA sensor
position
TF sensor
position
TF sensor
position
TF sensor
position
4. REFRIGERANT CYCLE DIAGRAM
4-1. TC1, TC2 and TCJ sensor position on DX COIL
Gas pipe AHU
PMV: Pulse
Motor Valve
Strainer
Brazing
Heat insulator
Liquid pipe
Dx-valve kit
Capillary Tube
Distributor
Max
16'5" (5 m)
Header
TCJ Ø15/64" (6 mm)
(Brazing)
TC1 Ø5/32" (4 mm)
(Brazing)
TC2 Ø15/64" (6 mm)
(Brazing)
2" (50 mm) ± 1" (25 mm) from the end plate
Dx-valve kit: 1 set DX COIL type: Normal
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(1) Gas pipe
Capillary Tube
Valve kit
PMV: Pulse
Motor Valve
Strainer
Brazing
(2) Liquid pipe
(3)
Header
Distributor
Valve kit: 2 sets DX COIL type: Normal
Heat insulator
Y-joint (A)
PMV: Pulse
Motor Valve
Strainer
Brazing
Heat insulator
(2) Liquid pipe
Valve kit
(2)
(2)
DX COIL
(3)
Y-joint (B)
4-2. Refrigerant circuit diagram
PMV: Pulse
Motor Valve
Strainer
Brazing
Heat insulator
(2)Liquid pipe
Capillary Tube
Valve kit
Distributor
Max
16'5" (5 m)
Header
(2)
Valve kit: 1 set DX COIL type: Normal
(1)Gas pipe
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(1) Gas pipe
Capillary Tube
Valve kit
PMV: Pulse
Motor Valve
Strainer
Brazing
(2) Liquid pipe
(3)
Header
Distributor
Valve kit: 3 sets DX COIL type: Interlaced, Split face
Heat insulator
Y-joint (A)
(2)
Y-joint (B)
DX COIL
Valve kit
PMV: Pulse
Motor Valve
Strainer
Brazing
(2) Liquid pipe
Heat insulator
(2)
Valve kit
PMV: Pulse
Motor Valve
Strainer
Brazing
(2) Liquid pipe
Heat insulator
(2)
Y-joint (A)
Y-joint (B)
DX COIL
DX COIL
Capillary Tube
Header
Capillary Tube
Header
Distributor
Distributor
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Piping size and Y-joint
• Maximum real piping length between valve kit and Dx coil is up to 16'5" (5 m)
4-3. Piping size and Y-joint
(Unit: in (mm))
DX-COIL type Normol
Ton Y-joint (A, B)
20 RBM-BY205E
22 ~ 50 RBM-BY305E
DX COIL
type
Pipe diameter
(1) Gas pipe (2)Liquid pipe (3)Liquid pipe
Ton Outer diameter
0.6 ~ 5 5/8" (15.9) 3/8" (9.5)
6 3/4" (19.1)
1/2" (12.7)
8 7/8" (22.2)
10
1.1/8" (28.6)
12 ~ 14 5/8" (15.9)
16
18
3/4" (19.1)
20 ~ 22 1.3/8" (34.9)
24 ~ 27
28 ~ 36 1.1/2" (38.1)
38 ~ 407/8" (22.2)
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