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Toshiba MMD-AP0486BH-E [13/28] Height difference
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–12–
7 Refrigerant 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.
Pipe size
Connecting refrigerant piping
Flaring
1. Cut the pipe with a pipe cutter.
Remove burrs completely. (Remaining burrs may
cause gas leakage.)
2. Insert 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.
Model MMD-
Pipe size (mm)
Gas side Liquid side
AP007 to AP012 Ø9.5 Ø6.4
AP015 to AP018 Ø12.7 Ø6.4
AP024 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
• 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.
• Use the tightening torque levels as listed in the
following table.
• 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.
Evacuation
Perform vacuuming from the charge port of valve of the
outdoor unit by using a vacuum pump.
For details, follow to the Installation Manual attached to
the outdoor unit.
• Do not use the refrigerant sealed in the outdoor unit
for evacuation.
REQUIREMENT
For the tools such as charge hose, use those
manufactured exclusively for R410A.
Refrigerant amount to be added
For addition of the refrigerant, add refrigerant “R410A”
referring to the attached Installation Manual of outdoor
unit.
Use a scale to charge the refrigerant of specified
amount.
REQUIREMENT
• Charging an excessive or too little amount of
refrigerant causes a trouble of the compressor.
Charge the refrigerant of specified amount.
• A personnel who charged the refrigerant should write
down the pipe length and the added refrigerant
amount in the F-GAS label of the outdoor unit. It is
necessary to fix the compressor and refrigeration
cycle malfunction.
Open the valve fully
Open the valve of the outdoor unit fully. A 4 mm-
hexagonal wrench is required for opening the valve.
For details, refer to the Installation Manual attached to
the outdoor unit.
Gas leak check
Check with a leak detector or soap water whether gas
leaks or not, from the pipe connecting section or cap of
the valve.
REQUIREMENT
Use a leak detector manufactured exclusively for HFC
refrigerant (R410A, R134a).
Outer dia. of connecting
pipe (mm)
Tightening torque (N•m)
6.4 14 to 18
9.5 34 to 42
12.7 49 to 61
15.9 63 to 77
Work using double spanner
23-EN 24-EN
Содержание
- Accessory parts 2
- Adoption of new refrigerant 2
- Applicable controls 5 2
- Contents 2
- 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 for you a qualified installer or qualified service person is an agent who has the qualifications and knowledge described in the following table 2
- Drain piping 2
- Duct design 1 2
- Electrical connection 3 2
- Generic denomination air conditioner 2
- Installation 2
- Maintenance 8 2
- Original instruction 2
- Please read this installation manual carefully before installing the air conditioner 2
- Precautions for safety 2
- Refrigerant piping 2 2
- Selection of installation place 2
- Specifications 4 2
- Test run 7 2
- Thank you for purchasing this toshiba air conditioner please read carefully through these instructions that contain important information which complies with the machinery directive directive 2006 42 ec and ensure that you understand them after completing the installation work hand over this installation manual as well as the owner s manual provided to the user and ask the user to keep them in a safe place for future reference 2
- This air conditioner uses r410a an environmentally friendly refrigerant 2
- Troubleshooting 9 2
- Burst hazard 3
- Caution 3
- Open the service valves before the operation otherwise there might be the burst 3
- Stop the unit before the servicing 3
- Warning 3
- Warning indications on the air conditioner unit 3
- Electrical wiring 4
- General 4
- Installation 4
- Precautions for safety 4
- Refrigerant piping 4
- Selection of installation location 4
- The manufacturer shall not assume any liability for the damage caused by not observing the description of this manual 4
- Warning 4
- Accessory parts 5
- Caution 5
- Avoid installing in the following places 6
- Installation under high humidity atmosphere 6
- Selection of installation place 6
- Caution 7
- External dimensions 7
- Filter cleaning sign term setting 7
- Installation 7
- Installation space 7
- Caution 8
- Changing from back air intake to under air intake 8
- Installation of hanging bolt 8
- Installation of indoor unit 8
- Mount the filter rail so that the hooks fit into the corresponding holes note that the upper and lower filter rails are not identical 8
- Mount the filter stopper 8
- Mount the supplied rail to the bottom then set the filter 8
- Mounting filter rails and filters 8
- Remove the filters on back of unit 8
- Remove the suction board cover attached to the bottom and screw it to the back of unit 8
- Slide and push the filters until it stop 8
- Treatment of ceiling 8
- Connecting drain pipe 9
- Drain piping 9
- Drain up 9
- Gravitational drainage 9
- Pipe material size and insulator 9
- Caution 10
- Check the draining 10
- Connecting method of the duct 10
- Heat insulating process 10
- When the electrical and wiring work has been completed 10
- When the electrical and wiring work has not been completed 10
- 1100 1300 1500 1700 1900 2100 2300 2500 11
- 1200 1400 1600 1800 2000 2200 2400 2600 11
- 300 400 500 600 700 800 11
- 480 580 680 780 880 980 11
- Air volume 11
- Ap0076 type ap0096 ap0126 type ap0156 ap0186 type ap0246 ap0276 type 11
- Ap0306 type ap0336 type ap0486 ap0566 type 11
- En 20 en 11
- External static pressure pa 11
- Fan characteristics 11
- High tap 100pa 11
- High tap 120pa 11
- High tap 30pa 11
- High tap 30pa standard filter pressure loss 11
- High tap 40pa 11
- High tap 50pa 11
- High tap 65pa 11
- High tap 80pa 11
- Low tap 120pa 11
- Low tap 120pa high tap 100pa 11
- Lower limit of external static pessure 120pa 11
- Standard filter pressure loss 11
- Upper limit of external static pessure 120pa 11
- Upper limit of external static pessure 120pa lower limit of external static pessure 120pa 11
- Ap0076 ap0096 ap0126 12
- Ap0156 ap0186 12
- Ap0246 ap0276 ap0306 ap0366 ap0486 ap0566 12
- Arrangement 12
- Duct design 12
- Caution 13
- Connecting refrigerant piping 13
- Evacuation 13
- Flaring 13
- Flaring diameter size a unit mm 13
- Gas leak check 13
- Height difference 13
- Open the valve fully 13
- Permissible piping length and 13
- Pipe size 13
- Projection margin in flaring b unit mm 13
- Refrigerant amount to be added 13
- Refrigerant piping 13
- Caution 14
- Electrical connection 14
- Heat insulation process 14
- Indoor unit power supply 14
- Power supply wire and communication wires 14
- Specifications 14
- Warning 14
- 2 core with non polarity wire is used for wiring of the remote controller wiring and group remote controllers wiring 15
- 2 core with polarity wires are used for the control wiring between indoor unit and outdoor unit and central controller wiring to prevent noise trouble use 2 core shield wire the length of the communication line means the total length of the inter unit wire length between indoor and outdoor units added with the central control system wire length 15
- An outdoor unit connected with control wiring between indoor and outdoor units wire becomes automatically the header unit 15
- Caution 15
- Communication line 15
- Control wiring central controller wiring 15
- Power supply 15
- Remote controller wiring 15
- The remote controller wire communication line and ac 220 240 v wires cannot be parallel to contact each other and cannot be stored in the same conduits if doing so a trouble may be caused on the control system due to noise or other factor 15
- Wiring between indoor unit and outdoor unit 15
- Wiring example 15
- Applicable controls 16
- Basic procedure for changing 16
- Push and hold button and temp button simultaneously for 4 seconds or more after a while the display flashes as shown in the figure confirm that the code no is 01 16
- Remote controller wiring 16
- Settings 16
- Wire connection 16
- External static pressure 17
- Settings 17
- Test run 18
- Maintenance 19
- Confirmation and check 20
- Confirmation of error log 20
- Troubleshooting 20
- Check code list 21
- Check method 21
- On the wired remote controller central control remote controller and the interface p c board of the outdoor unit i f a check display lcd remote controller or 7 segment display on the outdoor interface p c board to display the operation is provided therefore the operation status can be known using this self diagnosis function a trouble or position with error of the air conditioner can be found as shown in the following table 21
- The following list shows each check code find the check contents from the list according to part to be checked in case of check from indoor remote controller see wired remote controller display in the list in case of check from outdoor unit see outdoor unit 7 segment display in the list in case of check from ai net central control remote controller see ai net central control display in the list in case of check from indoor unit with a wireless remote controller see sensor block display of receiving unit in the list lighting flashing goes off ai net artificial intelligence ipdu intelligent power drive unit alt flashing is alternately when there are two flashing led sim simultaneous flashing when there are two flashing led 21
- Error detected by tcc link central control device 24
- Declaration of conformity 25
- Specifications 25
- Check of concentration limit 26
- Important 26
- Note 1 26
- Note 2 26
- Note 3 26
- Warnings on refrigerant leakage 26
- Confirmation of indoor unit setup 27
- Indoor unit setup check sheet 27
- Prior to delivery to the customer check the address and setup of the indoor unit which has been installed in this time and fill the check sheet following table data of four units can be entered in this check sheet copy this sheet according to the no of the indoor units if the installed system is a group control system use this sheet by entering each line system into each installation manual attached to the other indoor units 27
- Requirement 27
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