Toshiba MAR - M81HTM8 - E Manuale utente

SERVICE MANUAL

AIR CONDITIONER

HEAT PUMP MULTI SPLIT (2-PIPE)

Outdoor Units

MAR - M81HTM8 - E

MAR - M101HTM8 - E

Multi Controllers

RBM - Y1032E - E

RBM - Y1042E - E

TOSHIBA

AUGUST 1997 Page 1

Contents

1. Specifications Outdoor Unit

Multi Controller

2. Basic Permutations / Capabilities

3. Dimensional Views Outdoor Unit

Multi Controller

4. Wiring Diagrams Outdoor Unit

Multi Controller

5. Refrigeration Circuit Outdoor Unit

Multi Controller

6. Display Information and Fault Codes

7. Circuit Test Procedure

8. Calculation for Additional Gas Charge

Note : The two pipe Super Multi systems are heat pump units and can

provide heating or cooling, where both modes are required simultaneously

heating mode takes priority.

TOSHIBA

AUGUST 1997 Page 2

1. Specifications

OUTDOOR UNITS

RBM-Y1042E-E4 - Way RBM-Y1032E-E3 - WayMulti Controllers

Silky Grey (Munsell 6Y7.0/0.3)

Colour 10,000

m³/hrAir Flow Rate 2 x 150

WFan Motor Consumption 2 x Propeller Fan (two speed)

Fan Type 7.55.6kWCompressor Output Hermetically Sealed Twin Scroll

Compressor Type 18.615.6KgStd Refrigerant Weight R 22Refrigerant Type 20Outdoor Below (m) 50Outdoor Above (m)Height Difference 120mMax.. Length Equiv. 100mMax.. Length Actual 1/2Inch(sub) 5/8InchLiquid Pipe (main) 3/4Inch(sub) 1 1/8InchGas Pipe (main) -5 / -10Cooling / Heating ºCMin Temp. (ambient)66dB(A)Noise Level SPL 315308kgWeight 824Depth (mm) 1,290Width (mm) 1,490Height (mm)Dimensions 60AmpsStart Current 15.7 / 15.012.3 / 11.7(C/H) AmpsRunning Current 10.1 / 10.18.0 / 7.7(C/H) kWPower Consumption 3ph,380/415v,50HzPower Supply 25.0 (31.5)20.0 (25.0)kWHeating Capacity 25.0 (28.0)20.0 (22.4)kWCooling Capacity MAR-M101HTM8-EMAR-M81HTM8-EModel

Note: The capacity value in brackets is the maximum operating capacity

Cooling and Heating capacities are based on JIS B8615

Cooling capacity: Room Temperature 27ºC DB

19.5ºC WB

Ambient Temperature 35ºC DB

Heating capacity: Room Temperature 21ºC DB

Ambient Temperature 7ºC DB

6ºC WB

Usable outdoor temperature ranges

Cooling mode -5ºC to +43ºC DB

Heating mode -10ºC to +21ºC DB

Specifications are subject to change without prior notice.

TOSHIBA

AUGUST 1997 Page 3

1. Specifications

MULTI CONTROLLERS

1010mMax.. Difference between

Sub Pipes

1515mMax.. Sub Pipe Length (each)

Where two M/C are used 1515mMax.. Vertical Separation

1010mMax.. Difference between

Branches

3030mMax.. Branch Length 2320kgWeight

520450Depth (mm)

590590Width (mm) 260260Height (mm)Dimensions 3/8 x 43/8 x 3InchBranch Pipes (Liquid) 3/4 x 43/4 x 3InchBranch Pipes (Gas) 5/85/8InchLiquid Pipe (Inlet) 1 1/81 1/8InchGas Pipe (Inlet) 43Number of Branches RBM-Y1042E-ERBM-Y1032E-EModel

Specifications are subject to change without prior notice.

Pipe Size Conversion Chart

1.1/817/83/45/81/23/81/4inch 28.625.422.41915.912.79.56.4mm

TOSHIBA

AUGUST 1997 Page 4

2. Basic Permutations of Indoor to Outdoor Units

The indoor units are given a code number according to their capacity rank - see below

10RAV1253/460/1/2/3 8RAV1003/360/1/2/3 6RAV713/260/1/2/3 5RAV202/34RAV453/160/1/2/3 3RAV132/133 2RAV103 Code NumberModel Number

Multiple indoor units may be connected to one outdoor unit, providing the total indoor code does not

exceed the outdoor unit code number. The outdoor unit codes are listed below

2738MAR-M101HTM8-E 2138MAR-M81HTM8-E Max. CodeMin CodeMax.. No. Indoor UnitsModel

When connecting up to four single indoor units only one multi controller is required, if more single

indoor units are needed then two multi controllers must be used. When connecting a twin indoor

arrangement to one multi controller branch the capacity code will be the sum of both indoor unit

codes.

Example :

24Total 105TwinRAV202KH(W) 55SingleRAV202KH(W) 63TwinRAV133TUH 33SingleRAV133TUH Total Capacity CodeIndoor Capacity CodeArrangementModel No.

The total capacity codes for the example above are within the maximum permitted for a 10hp

(MAR-F101HTM8-E)outdoor unit therefore the use of a twin arrangement is acceptable.

NOTE : The maximum duty from the system cannot exceed the maximum capacity of the outdoor

unit, it is possible to use indoor uits with a total capacity of 135% of the outdoor unit capacity.

TOSHIBA

AUGUST 1997 Page 5

CONSTRUCTION VIEWS

MAR-M81HTM8E-E

MAR-M101FHTM8E-E

790 mm

824 mm

375 mm

750 mm

120 mm

65 mm

650 mm

1100 mm

1290 mm

610 mm

1182 mm

98 mm

90 mm

130 mm

160 mm

135 mm

L G

TOSHIBA

AUGUST 1997 Page 6

DIMENSIONAL DRAWINGS

RBM-Y1032E-E

300 mm

15 mm

50 mm

170 mm

Slit for hanging bolt

Oval holefor

hanging bolt

90 mm

170 mm

90 mm 490 mm

50 mm

80 mm

55 mm

85 mm

90 mm

Electric Parts Box

Wiring Entrance

Refrigerant piping joint (Flare)

Liquid Side Ø 9.5

Refrigerant piping joint (Flare)

Gas Side Ø 19

60 mm

Wiring Entrance Ø 36

80 mm

100 mm

125 mm

Refrigerant piping joint (Flare)

Liquid Side Ø 15.9

Refrigerant piping joint (Brazed)

Suction Gas Side Ø 28.6

Refrigerant piping joint (Flare)

Discharge Gas Side Ø 19

100 mm

or more

500 mm

or more

500 mm

or more

500 mm

or more

450 x 450

Inspection opening

Note. Make an inspection opening at

the specified place. It is indispensable

for servicing.

560 mm

15 mm

590 mm

450 mm

250 mm

205 mm

TOSHIBA

AUGUST 1997 Page 7

DIMENSIONAL DRAWINGS

RBM-Y1042E-E

370 mm

15 mm

50 mm

170 mm

Slit for hanging bolt

Oval holefor

hanging bolt

90 mm

170 mm

90 mm 490 mm

50 mm

80 mm

55 mm

85 mm

90 mm

Electric Parts Box

Wiring Entrance

Refrigerant piping joint (Flare)

Liquid Side Ø 9.5

Refrigerant piping joint (Flare)

Gas Side Ø 19

60 mm Wiring Entrance Ø 36

80 mm

190 mm

125 mm

Refrigerant piping joint (Flare)

Liquid Side Ø 15.9

Refrigerant piping joint (Brazed)

Suction Gas Side Ø 28.6

Refrigerant piping joint (Flare)

Discharge Gas Side Ø 19

100 mm

or more

500 mm

or more

500 mm

or more

500 mm

or more

450 x 450

Inspection opening

Note. Make an inspection opening at

the specified place. It is indispensable

for servicing.

560 mm

90 mm

590 mm

520 mm

250 mm

205 mm

TOSHIBA

AUGUST 1997 Page 8

4. Schematic Wiring Diagrams

Outdoor Unit

1 2 3 4 5 6 7 8 9

1 2 3 4 5 6 7 1 2 3 4 5 6 7

1 2 3 1 2 3 1 2 3

1 2 3

1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 5 4 3 2 1

Pressure

Sensor

1 2 31 2 31 2 3

U V W

WVU+

1 2 3 4

1 2(~)

(~)

3 ℜ

Noise Filter

1 ℜ

Noise

Filter

7 8 9 10 11 12

1 2 3 4 5 6 7 8 9

SV1

SV2

SV3

1 2 3 4 1 2

1 2 3 4

1 2

1 2 3 4 5 6

PMV1

FM2 FM1

1 2 3

1 2

1 2 3

1 ℜ

Noise

Filter

L1 L2 L3 N

CM2

CM1

Gate Drive PCB

MCC - 1252

CN21

P01

P02

CN24 CN23 CN22 CN25

CN2

INVERTER CONTROL

PCB

MCC - 1251

CN2

CN1

CN5CN9

CN8

CN4

CD1

CN121

CN6

ThE

INTERFACE CONTROL

PCB

MCC - 1211

PJ5

PJ6 PJ1

WHI PJ2

BLK PJ3

BLU

ThD1 ThD2 ThS

PJ12 PJ16 PJ15 PJ7 PJ8PJ11PJ10

1 ℜ

Noise

Filter

CAPACITORS

2200λF x 2

M/C (1) M/C (2)POWER SUPPLY

50Hz 3ℜ380/415 v

Display

Switch

Display LED x 8

Diode

Clipper

Diode

Clipper

CD2

Reactor

Rectifier

Electric Starter

Contactor

52C2

Contactor

52C1

Capacitor

1λF x 3

Fuses

20A x 3

Crankcase

Heater

Inverter HP

63H1

Inverter Klixon

49C1

DOL Klixon

49C2

DOL HP Sw

63H2

Contactor

52C3

Return

Lock

Surge

Absorber

Surge

Absorber

Low Pressure

Switch 63L

RC1RC2

Tr1

Tr2

Thermal Fuse

TRS

Giant

Transistor

Smoothing Circuit

2200λF/400v x 2

47kΩ/20W x 2

Reversing

Valve

Fuses

2 x 7A

= 240 v ac Live (not permanent) = dc high voltage live

= Neutral (not permanent) = dc high voltage neutral

= Communication Signal = 3Ø for Inv Compressor

= Earth = dc low voltage

= L1 phase 415ac = ac low voltage

= L2 phase 415ac = ac low voltage

= L3 phase 415ac

Fuse 20A

20SF

Note :The colours used in this diagram are not

representative of those on the actual producct,

they are intended to indicate the status of each

wire.

Fan Motors

Solenoid Valves

Pulsed

Modulating

Valve

Inverter

Compressor

D.O.L.

Compressor

TOSHIBA

AUGUST 1997 Page 9

4. Schematic Wiring Diagrams

Multi Controllers

3 2 1

|_|

LD 1 LD 2

5 4 3 2 1 5 4 3 2 1 5 4 3 2 1 5 4 3 2 1 3 2 1 3 2 1 3 2 1 3 2 1 1 2 3

OUTDOOR

UNIT

INDOOR

UNIT D

INDOOR

UNIT C

INDOOR

UNIT B

INDOOR

UNIT A

COM

NO NC

Microswitch

1 2 3

Sump

Heater

Transformer

ThA ThB ThC ThD ThXPMVA PMVB PMVC PMVD

Float

Switch

PJ 10

PJ 6 PJ 7 PJ 8 PJ 9 PJ 1 PJ 2 PJ 3 PJ 4 PJ 5 PJ 16

PJ 14

PJ 13

PJ 12

Multi Controller P.C.

Board

MCC - 1210

Capacity Code

Swiches

Branch

ABranch

BBranch

CBranch

Display

Switch

The colours used in this

diagram are not

representative of those on

the product, they are

intended to indicate the

status of each wire.

= 240v ac Live Wiring

= Neutral Wiring

= Serial Wiring

= Earth Wiring

= ac low voltage

RBM - Y1032E - E does not have

PMVD, ThD, indoor unit D connections

or the capacity code switch for branch D.

TP 1

TP 2

TOSHIBA

AUGUST 1997 Page 10

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