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Installation Manual

NOTE

However, if the environmental temperature changes from the moment of applying pressure to 24 hours after that, the 
pressure will change by about 0.01 MPa (0.1 kg / cm

2

G) per 1 °C. Consider the pressure change when checking the 

test result.

REQUIREMENT

When pressure decrease is detected in steps 1-3, check the leakage at the connecting points.
Check the leakage using a foaming agent or other measures and seal the leak with re-brazing, flare retightening or 
other methods. After sealing, execute an airtight test again.

Air purge

NOTE

For the air purge at installation time (Discharge of air in connecting pipes), use “Vacuum pump method” from 
viewpoint of the protection of the earths environment.
• For protection of the earths environment, do not discharge the refrigerant gas in the air.
• Eliminate the remaining air (nitrogen gas, etc.) in the unit by using a vacuum pump.
If gas remains, performance and reliability of the unit may be reduced.

After the airtight test, discharge nitrogen gas. Then connect the gauge manifold to the service ports at gas side and 
liquid side, and connect the vacuum pump as shown in the following figure.
Perform vacuuming for gas side and liquid side.
• Perform vacuuming from both liquid and gas sides.
• Use a vacuum pump with counter-flow preventive function so that oil in the pump does not back up in the pipe of the 

air conditioner when the pump has been stopped. (If oil in the vacuum pump enters in to the air conditioner with 
R410A refrigerant, an error may occur in the refrigeration cycle.)

• Use a vacuum pump that has a high vacuum (below -755 mmHg) and a large exhaust gas amount (over 40 L /

minute).

• Perform vacuuming for 2 or 3 hours though time differs due to pipe length.

In this time, check all valves at liquid and gas sides are fully closed.

• If vacuuming valve amount is not decreased to below -755 mmHg even after vacuuming for 2 hours or more, 

continue vacuuming for 1 hour or more.
If -755 mmHg or less cannot be obtained by 3 hours or more vacuuming, detect and repair the leak.

• When the vacuuming valve has reached -755 mmHg or less after vacuuming for 2 hours or more, close valves VL 

and VH on the gauge manifold fully. Stop the vacuum pump, leave it as it is for 1 hour and then check the vacuum 
does not change. If it does change then there may be a leak within the system.

• After the above procedure for vacuuming has finished, exchange the vacuum pump with a refrigerant cylinder and 

advance to the additional charging of refrigerant.

Main pipe

Connected to indoor unit

Low pressure 
guage

High pressure 
guage

Ball valve fully closed 
(Gas side)

Flare connection

Flare connection

Packed valve fully closed 
(Liquid side)

Service port

Vacuum pump

Gauge 
manifold

Outdoor unit

Service port

EN-41

EN-42

2FAN_IM_DB04307201-04_EN.book  Page 21  Tuesday, December 17, 2019  6:34 PM

Summary of Contents for MCY-MHP0806HS8-E

Page 1: ... Nederlands Ελληνικα Svenska Suomi Norsk Dansk Românã Български Eesti Latviski Slovenèina Slovenšèina AIR CONDITIONER MULTI TYPE Installation Manual Outdoor Unit Model name Heat Pump Model MCY MHP0806HS8 E MCY MHP1006HS8 E For commercial use 2FAN_IM_DB04307201 04_EN book Page 1 Tuesday December 17 2019 6 34 PM ...

Page 2: ...ant Contents 1 Precautions for Safety 4 2 Accessory Parts 8 3 Installation of New Refrigerant Air Conditioner 8 4 Installation Conditions 9 5 Refrigerant Piping 13 6 Electric Wiring 24 7 Address Setting 28 8 Test Run 36 9 Troubleshooting 38 Original instruction 2FAN_IM_DB04307201 04_EN book Page 1 Tuesday December 17 2019 6 34 PM ...

Page 3: ...s 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 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 Protectiv...

Page 4: ...NG Moving parts Do not operate unit with grille removed Stop the unit before the servicing CAUTION High temperature parts You might get burned when removing this panel CAUTION Do not touch the aluminum fins of the unit Doing so may result in injury CAUTION BURST HAZARD Open the service valves before the operation otherwise there might be the burst Never recover the refrigerant into the outdoor uni...

Page 5: ...ualified installer or qualified service person is allowed to undertake work at heights using a stand of 50 cm or more When working at heights use a ladder which complies with the ISO 14122 standard and follow the procedure in the ladders instructions Also wear a helmet for use in industry as protective gear to undertake the work Wear protective gloves and safety work clothing during installation s...

Page 6: ...onditioner by hand move the unit with 6 people Installation Follow the instructions in the installation manual to install the air conditioner Failure to follow these instructions may cause the product to fall down or topple over or give rise to noise vibration water leakage etc The designated bolts M12 and nuts M12 for securing the outdoor unit must be used when installing the unit Install the out...

Page 7: ...nnected 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 qualified service person When installing the circuit breaker outdoors install one which is designed to be used outdoors Under no circumstances must the power cable be extended Co...

Page 8: ...nit Relocation Only a qualified installer or qualified service person is allowed to relocate the air conditioner 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 pump down work shut down the compressor before disconnecting the refrigerant pipe Disconnecting ...

Page 9: ...l the size of the charge port of the main unit or connecting section of the installation tool differs to that of an air conditioner for the former refrigerant Accordingly exclusive tools are required for the new refrigerant R410A as shown below For connecting pipes use new and clean piping materials so that water or dust does not enter Required tools and cautions on handling It is necessary to pre...

Page 10: ...of the outdoor unit Insufficient durability may cause the outdoor unit to fall which may result in injury This outdoor unit has a weight of about 147 kg Pay special attention when installing the unit onto a wall surface CAUTION Do not install the outdoor unit in a location that is subject to combustible gas leaks Accumulation of combustible gas around the outdoor unit may cause a fire Install the ...

Page 11: ...wall of the building Keep a distance 800 mm or more between the unit and wall surface 2 Consider the wind direction during the operational season of the air conditioner and install the unit so that the discharge port is set at a right angle relative to the wind direction 800 mm Strong wind Strong wind 4 When installing the unit in an area where snowfalls may be heavy take steps to prevent the unit...

Page 12: ...more 1 000 or more 300 or more 300 or more 1 000 or more 800 or more 800 or more 150 or more 300 or more Obstacles in both front and rear of unit Open above and to the right and left of the unit The height of an obstacle in both the front and rear of the unit should be lower than the height of the outdoor unit Standard installation 1 Single unit installation 2 Serial installation of two or more un...

Page 13: ...ver in turn causing an accident Fixing leg Correct Correct Foundation Absorb vibration with vibration proof rubber pads Foundation Bottom plate of outdoor unit Support the bottom surface of the fixing leg that is in contact with and underneath the bottom plate of the outdoor unit Incorrect If only the end of the fixing leg is supported it may deform Do not support the outdoor unit only with the fi...

Page 14: ... leaks at connection points Pipe connection method Flaring 1 Cut the pipe with a pipe cutter 2 Remove the burr inside of the pipe When removing the burr be careful so that chips do not fall into the pipe 3 Remove the flare nuts attached to the outdoor indoor unit then insert them into each of the pipes 4 Flare the pipes See the following table for the projection margin A and flaring size B In case...

Page 15: ...eam less pipe Capacity code of indoor and outdoor units For the indoor unit the capacity code is decided at each capacity rank The capacity codes of the outdoor units are decided at each capacity rank The maximum No of connectable indoor unit and the total value of capacity codes of the indoor units are also decided Minimum wall thickness for R410A application1 If the pipe size is Ø19 05 use a sui...

Page 16: ...t and Ø22 22 main pipe Ball valve Ø19 05 Main pipe Locally procured Ball valve Ø19 05 Main pipe Locally procured Ø22 22 Main pipe Locally procured Ball valve Ø19 05 Ø22 22 socket Attached Ø19 05 Ø22 22 socket Locally procured Ball valve Ø19 05 pipe Locally procured Ø22 22 Main pipe Locally procured CAUTION The brazed part of the pipe connection should be sufficiently away from the ball valve When ...

Page 17: ... the capacity code of the outdoor unit apply the capacity code of the outdoor unit See Table 1 and 2 3 Branching section Indoor unit Indoor unit connecting pipe Connecting pipe size of indoor unit Conditions for size of main pipe selection Size of main pipe Height between indoor and outdoor units H1 m Equivalent length of main pipe L1 m Gas pipe Liquid pipe 30 H1 20 40 L1 19 05 9 52 L1 40 12 70 20...

Page 18: ... BY105E Model name Branching header For 4 branches RBM HY1043E For 8 branches RBM HY1083E Selection of refrigerant piping for quiet place with PMV Kit No Piping parts Name Selection of pipe size Remarks Outdoor unit Connection Valve Size of valve 5 2 4 1 3 6 3 3 2 4 3 6 6 6 3 6 3 6 L1 Outdoor unit Liquid pipe Gas pipe Main pipe 1st branching section Branching pipe Branching header Indoor unit Indo...

Page 19: ...ight between indoor and outdoor units H1 m Equivalent length of main pipe L1 m Gas pipe Liquid pipe 30 H1 20 30 L1 22 22 9 52 L1 30 12 70 20 H1 10 40 L1 9 52 L1 40 12 70 10 H1 0 50 L1 9 52 L1 50 12 70 Total capacity codes of indoor units at down stream side Gas pipe Liquid pipe Equivalent to HP Equivalent to capacity Below 2 4 Below 6 6 12 70 9 52 2 4 to below 6 4 6 6 to below 18 0 15 88 9 52 6 4 ...

Page 20: ...gerant piping for quiet places with PMV Kit 1 Furthest indoor unit from 1st branch to be named A 2 The main liquid pipe size varies depending on L1 and H1 See the page of Selection of refrigerant piping for details Allowable value Pipes Piping Length Total extension of pipe Liquid pipe real length 250 m L1 L2 L3 a b c d e f g h i j k l Furthest piping length L 1 Real length 100 m L1 L3 f l Equival...

Page 21: ...e tighten the valve rods before applying pressure Re tightening of the valve rods are unnecessary for valves at gas side because they are ball valves For each refrigerant line apply pressure gradually with steps at liquid side and gas side Apply pressure to gas side and liquid side REQUIREMENT Do not use Oxygen Flammable gas and Noxious gas in an airtight test To detect a gross leakage 1 Apply pre...

Page 22: ...at oil in the pump does not back up in the pipe of the air conditioner when the pump has been stopped If oil in the vacuum pump enters in to the air conditioner with R410A refrigerant an error may occur in the refrigeration cycle Use a vacuum pump that has a high vacuum below 755 mmHg and a large exhaust gas amount over 40 L minute Perform vacuuming for 2 or 3 hours though time differs due to pipe...

Page 23: ...igh wall MMK AP H 0 5 0 5 0 5 0 7 0 7 0 7 MMK AP HP 0 3 0 3 0 3 0 3 0 7 0 7 0 7 Floor standing MMF AP H 0 7 0 7 1 0 1 0 1 3 1 3 1 3 MML AP H 0 5 0 5 0 5 0 5 0 8 0 8 MML AP BH 0 3 0 3 0 3 0 5 0 5 0 7 MML AP NH 0 5 0 5 0 5 0 5 0 5 Mid temperature Hot water module Table 3 Example 1006 type Additional charge amount R kg Lx 0 025 kg m Ly 0 055 kg m a b c d 1 0 kg 12 0 025 kg 28 0 055 kg 2 7 kg 1 0 kg 3...

Page 24: ...be stopped and repaired as soon as possible 4 Only qualified service personnel are allowed to access and service this product 5 Any handling of the fluorinated greenhouse gas in this product such as when moving the product or recharging the gas shall comply under EU Regulation No 517 2014 on certain fluorinated greenhouse gases and any relevant local legislation 6 Periodical inspections for refrig...

Page 25: ...otherwise the coating of cables may melt and cause an accident After connecting wires to the terminal block take off the traps and fix the wires with cord clamps Do not conduct power to indoor units until vacuuming of the refrigerant pipes has finished For the wiring of power to indoor units and that between indoor and outdoor units follow the instructions in the installation manual of each indoor...

Page 26: ... wiring Table 1 Control wiring between indoor and outdoor units L1 L2 L3 Central control wiring L4 1 Total of control wiring length for all refrigerant circuits L1 L2 L3 L4 Table 2 Control wiring between outdoor units L5 Other system Table 3 Remote controller wiring L6 L7 Wiring 2 core non polarity Type Shield wire Size Length 1 1 25 mm2 Up to 1000 m 2 0 mm2 Up to 2000 m Wiring 2 core non polarity...

Page 27: ... jugged bushings to wrap around the hole and use insulated bushings locally purchased to protect the wires from directly touching the sheet metal NOTE Separate the power wire and communication wires B A B A B A B A B A B A A B Indoor unit No 1 No 2 No 3 No 4 No 7 No 8 Remote controller Knockout for the communication wires and refrigerant piping Jugged bushings locally purchased Remove the front pa...

Page 28: ...arth screw M8 5 5 to 6 6 L1 L2 L3 N L1 L2 L3 N 10 mm or more Earth line Power supply wire 60 mm or less Communication wire connection Connect the communication wires to the communication wire terminals from under the electrical control box and fix them with the communication cable clamps Screw size and tightening torque Screw size Tightening torque N m Communication wire terminal M4 1 2 to 1 4 U1 ...

Page 29: ...wer input shall be around 3 3 of the nominal power supply voltage or less Model Ssc kVA MCY MHP0806HS8 E MCY MHP1006HS8 E 1596 7 Address Setting On this unit it is required to set the addresses of the indoor units before starting air conditioning Set the addresses following the steps below CAUTION Be sure to complete the electric wiring before setting the addresses If you turn on the outdoor unit ...

Page 30: ...troller Outdoor Central controller Indoor Indoor Indoor Remote controller Remote controller U 1 L08 U 1 flash Auto 1 Auto 2 Auto 3 U 1 U 1 flash U 1 U 1 light 3 2 4 D600 D601 D602 D603 D604 SW04 SW05 SW15 SW01 SW02 SW03 REQUIREMENT When 2 or more refrigerant lines are controlled as a group be sure to turn on all the indoor units in the group before setting addresses If you set the unit addresses o...

Page 31: ...t the 7 segment display on the interface P C board of the outdoor unit indicates 5 Press SW 15 to start the automatic address setting It may take up to 10 minutes normally about 5 minutes to complete one line s setting 6 The 7 segment display indicates After the indication starts flashing on the display When the flashing stops and remains lit on the display the setting is complete 7 Repeat steps 4...

Page 32: ...r connect relay connectors between the U1 U2 and U3 U4 terminals before completing address setting of all the refrigerant lines Otherwise the addresses cannot be set correctly Outdoor unit s interface P C board Outdoor unit Outdoor unit Outdoor unit Factory default SW13 14 Line system address 1 2 3 1 Dip switch 2 of SW30 Terminator of indoor outdoor communication line and central control line ON S...

Page 33: ... Push the button It is OK if the display turns on Group address 8 Push the TEMP buttons repeatedly to set the CODE No to 9 Push the TIME buttons repeatedly to set a group address If the indoor unit is individual set the address to header unit follower unit 10 Push the button It is OK if the display turns on 11 Push the button The address setting is complete flashes You can control the unit after h...

Page 34: ...f the button Each time you push the button the indoor unit numbers are indicated one after another The first indicated unit number is the address of the header unit Only the fan and louvers of the indicated indoor unit are activated 3 Push the button to finish the procedure All the indoor units in the group stop To check all the indoor unit addresses using an arbitrary wired remote controller When...

Page 35: ... 8 If the addresses have been changed correctly push the button to finish the procedure 3 5 8 1 4 2 6 7 ON OFF TEMP TIME SET CL FILTER RESET TEST TIMER SET CODENo UNIT No SETTING DATA SET R C No Finish UNIT LOUVER UNIT LOUVER UNIT LOUVER To change all the indoor unit addresses using an arbitrary wired remote controller The method is available when the addresses have already been set automatically ...

Page 36: ... is if it has already been set to ON UNIT LOUVER U1 U2 A B U1 U2 A B U1 U2 A B U1 U2 A B U1 U3 U2 U4 U1 U2 A B U4 U3 U2 U1 CN02 CN10 U4 U3 U2 U1 CN02 CN10 U4 U3 U2 U1 CN02 CN10 Remote controller Central controller Remote controller Remote controller Remote controller Indoor units to have their addresses initialized Outdoor unit U1 U2 and U3 U4 connected U1 U2 and U3 U4 connected U1 U2 and U3 U4 no...

Page 37: ... installation manual supplied with the indoor unit To execute a test run forcibly under the condition that the thermostat automatically turns the unit off due to the indoor temperature follow the procedure below The forcible test run will automatically stop after 60 minutes to prevent continuous forcible running and return to normal running CAUTION Do not use forcible running except for a test run...

Page 38: ... SW02 1 to 16 2 17 to 32 Set number of SW02 16 1 to 16 3 33 to 48 Set number of SW02 32 1 to 16 4 49 to 64 Set number of SW02 48 7 segment display A Address display of the corresponding indoor unit B 7 segment display NOTE The running mode follows the mode setting on the remote controller of the target indoor unit You cannot change the temperature setting during the test run Errors are detected as...

Page 39: ...e 7 segment display on the outdoor unit Indicated when SW01 1 SW02 1 and SW03 1 Rotary switch setting value Indication LED SW01 SW02 SW03 1 1 1 Outdoor unit check code A Outdoor unit number U1 B Check code display Check code Check code name Indication on 7 segment display on the outdoor unit Auxiliary code E06 Number of indoor units which received normally Decrease of number of indoor units or HWM...

Page 40: ...ch the air conditioner is to be installed requires a design that in the event of refrigerant gas leaking out its concentration will not exceed a set limit The refrigerant R410A which is used in the air conditioner is safe without the toxicity or combustibility of ammonia and is not restricted by laws to be imposed which protect the ozone layer However since it contains more than air it poses the r...

Page 41: ... a gas leakage detector in the smallest room where the density limit is exceeded the volume of the next smallest room becomes the object NOTE 3 The minimum indoor floor area compared with the amount of refrigerant is roughly as follows When the ceiling is 2 7m high Important Outdoor unit Refrigerant piping Indoor unit Refrigerant piping Outdoor unit Indoor unit Mechanical ventilation device Gas le...

Page 42: ...DHV2307201 00 2FAN_IM_DB04307201 04_EN book Page 41 Tuesday December 17 2019 6 34 PM ...

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