Toshiba MAR-F101HTM8-PE, MAR-F81HTM8-PE SERVICE MANUAL

SERVICE

Forçage des PMV dans le groupe.

Shunter TP1 Mettre le rotatif sw1 sur 0 et TP1 shunté ouverture de la PMV1 pendant 2 mn Mettre le rotatif sw1 sur 1 et TP1 shunté ouverture de la PMV2 pendant 2 mn (page 42 du MARF102

Couper l'alimentation électrique pour que les vannes restent en ouverture.

Forçage des PMV sur les multi-controllers

Basculer le bouton rotatif de couleur (situé à droite) sur la position 0 et shunté TP1 pour forcer l'ouverture de la PMVA. Basculer le bouton rotatif de couleur (situé à droite) sur la position 1 et shunté TP1 pour forcer l'ouverture de la PMVB. Basculer le bouton rotatif de couleur (situé à droite) sur la position 2 et shunté TP1 pour forcer l'ouverture de la PMVC. Basculer le bouton rotatif de couleur (situé à droite) sur la position 3 et shunté TP1 pour forcer l'ouverture de la PMVD.

Couper l'alimentation électrique pour que les vannes restent en ouverture.

DATA

TOSHIBA

SUPER

CCOOUHEAT

Outdoor Units

Multi-Controller

MULTI

AIR

CONDITIONER

FLEX SERIESI

FILE

NO.

300

-

950

RBM-Y

Forcaae des

Shunter TPI Mettre le rotatif swl sur O et TPI shunté ouverture de la PMVI pendant 2 mn Mettre le rotatif swl sur 1 et Couper I'alimentation électrique pour que les vannes restent en ouverture.

Forcaae des

Basculer le bouton rotatif de couleur (situé à droite) sur la position O et shunté TPI pour forcer I'ouverture de la PMVA. Basculer le bouton rotatif de couleur (situé à droite) sur la position 1 et shunté TPI pour forcer I'ouverture de la PMVB. Basculer le bouton rotatif de couleur (situé à droite) sur la position 2 et shunté TPI pour forcer I'ouverture de la PMVC. Basculer le bouton rotatif de couleur (situé à droite) sur la position 3 et shunté TPI pour forcer I'ouverture de la PMVD. Couper

PMV

dans le aroupe.

TPI shunté ouverture de la PMV2 pendant 2 mn (page 42 du MARF102

PMV

sur les multi-controllers

I'alimentation électrique pour que les vannes restent en ouverture.

1031FE

PRINTED

IN

JAPAN,

July,

1993

@

TABLE

1

.

MULTI AIR CONDITIONER SYSTEMS AND THEIR BASIC COMPONENTS

1.1

.

Indoor Remote Controllera

.

1.2 Outdoor Unlis 3 16.3 . Test Run Check

1.3 . Multi-wnlmllera

14

Indoor Units

2

.

CONTRO1 SYSTEM

3

.

REFRIGERANT CYCLE DIAGRAM

4

.

COMBINATION OF INDOOR UNITS AND OUTDOOR UNITS

4.1 . Baslc Criterls for Combinatlons

4-2

Procedure for Checking ihe Comblnation 7 20.2 . How lo Read the Malfunction Check

4-3 . Exemplee of Connectlon Check

5

.

SPECIFICATIONS OF OUTDOOR UNIT

5.1 . Explanatlon of Electrlc Characterlstlcs Calculation

6

.

EXTERNAL VIEW

6.1 Outdoor Unit 11

6.2 . Multlcontroller

.

6.3

Header

7

.

WIRING DIAGRAM

7.1. outdoor unlt (YAR.F~~H~~, MAR-F~O~HTM~) 14

7.2 . Mulll-wntmller (RBY.Y1031FE, Yl041FE)

.

8

ELECTRICAL SPECIFICATIONS

l

.

Speclflcatlons

8.2

.

Speclflcatlons oi Inverter Asssmbly Parts

8.3. Speciflcatlons of Multl-contraller Parts

.

9

Coollng/Heatlng Capaclty Characteristics

.

9.1

Range of Operalion 21

9.2 . Coollng Capaclty Calculation

9.3 . Heatlng Capaclty CaIculatIon

10

.

AIR TIGHTNESS TEST, AIR PURGING WITH VACUUM PUMP AND CHARGING OF ADDlTlONAL REFRIGERANT

10.1 . Air Tlghtness Test

10.2 . Alr Purging with a Vacuum Pump

10.3 . Addltlonal Refrlgerant Charglng and

Amount of Addltlon

11

.

PIPING LENGTH AND CHARGED REFRIGERANT AMOUNT

11.1

.

Maln

Branch (One Mulii-Controller)

11.2 . Sub Branch (Two Multl-Controllers)

12

.

DESCRIPTION OF OPERATION

t

2.1 . Slmultaneous Coollngl Heatlng Operatlon Control Outline

12.2 . Functlons

13

OPERATIONS OF EACH SENSOR

.

13.1. Multi-Controller 33

.

13.2 Outdoor Unlt

14

.

COOLINGIHEATING AUTOMATIC REMOTE CONTROLLER

14-1

.

CoolinglHeatlng Automatic

ChangeOver Operatlon

15

.

IMPORTANT MATTERS T0 BE CHECKED BEFORE TEST RUN AND SERVICING

15-1

.

Reglstered Indoor Unlt Code Numbers

15-2 . Connections o1 Refrigerant Piping and

Control Wires

Multi-Controller 37

15-3 . Conneclions of Control Wires between Units

..............................................................

.......................

................................................................ .

...........................................

...............................................

.............................................

.............................................................. .

..........................................................

........,..,

"-m.,.".-

...........................................

of

Refrlgerant Cycle Parto

...................................................

.............................

................................................

and

Operations of Solenoid Valves

.........................................................

.....................................................

..-...

-

..................................................

beiween Indoor Units and

......................................................

...........................

...,.......................

..

.............................

.............

..................

................................

...-.".....

..................................

................

............

.......................

............................

............

....................

...............

.............

..................

..........................

..

...............

...........................

................................

........................

.......................

......................

.........................

.................

...........................................

...........

...................

....

...

.......

........

OF

2

3

5 19 6

6

8

9

10

11

12 13

14

16

18

18 19 20

21

22 23

A 25

25 26

27

28

29

30

30 31

33

34

35

36

37

CONTENTS

16

.

TEST RUN

.

16.1 Test Run Prooedure 38

16.2

.

Check

.

Guidelines

16.4

17

.

SERVICING PROCEDURES

18

.

CHECK CODE DISPLAY SYSTEM CHART

.

IDENTIFICATION PROCEDURES

20

.

JUDGMENT OF MALFUNCTIONS WITH THE REMOTE CONTROLLER INDICATION

20.1 . Malfunction Check Dlsplay Operatlon

Monltor Display

20.3 . The Check Code and Ihe Judgmenl

20.4

.

Malfunctlon Judgmeni wlth the Self-Dlagnostlc Function of the

20.5 . Malfunction Judgment wlth the Sell-Dlognoatlc Functlon of the Multl-Controller

20.6. PMV Openlng Pressure Sensor Data Code Display

Conversion Table

21

.OTHERS

21.1 . Microprocessor System Dlagram and the Tlme

Requlred lo Judge the Malfunctlon

21.2 . A Check of ihe Conlrol Clrcuit Power Voltage of

the

Multi-Controller Control Board

21.3

.

A

Check of rhe Control Clrcult Power Voltage of

theoutdoot Interface Board

21.4 220 - 240V Systein Dlagram

.

22 . REMOTE CONTROLLER DISCRIMINATION

FUNCTION, OUTDOOR UNIT D

ISCRIMINATION FUNCTION

.

22.1 Search from the Remote Controller

.

22.2 Search from Outdoor Unit 76

23

.

CHECK FOR REFRIGERANT PIPING AND INTER-UNIT WIRING CONNECTION

23.1

.

Check System Procedure8

24

.

REMOVAL METHOD

24.1 Outdoor Unlt (MAR.FSlHTM0, FlOlHTM8)

.

24.2. Multi-Controller (RBM.Y1031FE, Y1 WlFE)

25

.

EXPLODED VIEWS AND PARTS LIST

25.1 . Outdoor Units (MAR-FS1 HTM8, MAR-FlOIHTM8)

25.2 . Electrical Parto Assembly

(MAR-FS1

25.3

.

Multi-Controller (RBM.Y103IFE, RBM-Yl041FE)

25.4 . Eleclrical Parts Assembly (RBM.Y1031FE, RBM-Y1041FE)

.........................................................

...................................................

before

Test Run

..............................................

...........................................-.............

..................................................................

............................

...................

...........

.....................

.,.,.,

......,.....,..

"v-.

.........................

Outdoor Unlt

....................................

.....................

Degree,

Temperature Sensor and

.......................................................

............................................................

........................

...........................

..........................

.............................

.........................

........................

...............

J

..............

...........

...........................

..........................

................................

HTMB,

MAR-F101HTM8)

.........................................

...........................

........................................

30

38

39 41

43

....

45

46

49

50 51

57

.....

64

67

71

71 72

......

73

....

74

76

36

77

70

78

83

86

...8

6

.88

90

91

1.

MULTI AIR CONDITIONER

COMPONENTS

These multi sirnultaneously.

air

conditioner systerns allow separale operation of each indoor unit

Multi-controller

SYSTEMS

AND THEIR BASIC

in

both heating and cooling

Cooling operaiion

0

Heating operation

+

Danger:

Fig.

1-1

Be

sure to provide a ventilator in a room, because;

This multi air conditioner system contains a large amount

a

case of a refrigerant leakage frorn with a large volume of refrigerant gas.

Consequently, people or

anirnals in the room

indoor unit, a room equipped with the indoor unil

may

be

suffocated by lack of oxygen.

of

refrigerant

Indoor remote controller

(HCFC

22).

In

the worst

is

filled

1-1.

Indoor remote controllers come either with or without lhe automatic heatinglcooling mode lunction. Automatic

heating

1-2.

Two types of outdoor units are available in the iine-up: both types are used in combination.

1-3.

Multi-controllers are refrigerant distributing devices to connecl multiple indoor units with the outdoor unit. The series includes 3-way (for 3 indoor units)and 4-way multi-controllers. To make indoor units) system, the 3-way and 4-way mu#icontrollers are used in combination wilh a header.

1-4.

There is a wide range ol indoor units totaling Refer to

Indoor

and

Remote

cooling operations can be controlled by those that equipped with Ihe funclion.

Controllers

Outdoor Units

8

HP

and

10

HP.

For

16

Multi-controllers

Indoor

table

4-1.

Units

13

models

(3

types with 6 capacity ratings from

HP or larger applications,

a

5-,

6-,

7-

or 8-way (for

1.5

to 5 HP).

8

2.CONTROL

The refrigerant and electrical systems of the multi air conditioner system are controlled by the multi-controllers and rnicroprocessor contained inside the outdoor unit. The indoor units of the CooltHeat Flex Series of Multi Air Conditioner Systerns are the same units as in the RAV-series air wnditioner systems.

For system operation, first the microprocessor in each indoor unit reads the difference between Ihe current

room temperature and desired temperature which has been set by the remote corresponding operation comrnands

On the basis of the operation commands sent lrom al1 the indoor microprocessors, the multi-controller microprocessors adjust the cooling and heating operation commands and send them to the interface microprocessor in the ouldoor unit. The inleriace microprocessor calculates the capacity required for cooling and heating, determines Ihe operation mode in the outdoor unit and compressor and frequencies of

SYSTEM

controller, determines the

demand signai, and transmits this to the multicontroller rnicroprocessors in the form

(ONJOFF,

al1 the requested heating command dilference between al1 the requested cooling command

the compressor of al1 the indoor units.

coolinglheating operation mode, operation frequency of the compressor).

calculates frequencies of the

of

-

r-

Indoot unit

Fan

Temp. sensor

Outdoor

I

-

A

1

Multi-controller

Capacity rank

setting

SW

Temp. sensor

-

7-

Protection unit

Comp. sensor

Temp. sensor

unit

.

-

1

Electronic flow rate

adjustment valve adjustment valve

Indoor unit microprocessor

.>

I-.

cm-'>

-P-

Multi-controller microprocessor Interiace microprocessor

Display

LED

2-way valve Display

Electronic flow rate

Compressor

LED

2-way valve

Fan

v

4

"'"

:

L.

----

I-

Multi-controller microprocessor

r-

-

Inverter

microprocessor i Inverier

Compressor

V

-1

D

t-----

----

Fig.

2-1

Ptotection

L+

unit

3.

REFRIGERANT

CYCLE

DIAGRAM

Fig.

3-1

Exarnples

of

8

and

10

HP

4.

COMBINATION OF INDOOR UNITS AND

OUTDOOR

UNITS

4-1.

(1) For details of indoor units to be connected, referto the each Service Data for indivisual RAV-series split

Wall

Cassette

Duct

(2)

Basic

systern air conditioner.

The indoor units have code numbers according to their capacity ranks.

Criteria for Combinations

Table

4-1

Available indoor unit mode1 name and service data file nurnber

130

RAV-130UH-P

No. 300-949

Capacity Rank of tndoor Unit

160

RAV-16OKH-P

NO. 300-885

RAV-1 6OUH-P

No.

300-883

RAV-160BH

NO.

300-842

Table

4-2

130

160

200 260

360

460

-RAV-200KH NO. 300-855

RAV-200BH NO. 300-842

Code numbers of indoor units

200

260

RAV-260KH-P

NO. 300-885

RAV-260UH-P

No. 300-883

RAV-260BH-P

NO.

300-920

Code No.

3.

4 4

5

8

10

360

RAV960UH-P

No. 300-881

RAV-36OBH-P

NO. 300-920

(See

Table

4-2.)

460

RAV46OUH-P

No.

300-881

RAV-460BH-P

NO. 300-920

(Ex.

Model RAVS6OUH-P + Capacity rank 360)

(3)

Indoor units within a determined range of codes can be connected to the outdoor units (minimum code

and maxirnum value of code number total). (See Table

4-3

Code of outdoor units

7

with

but the maximum capacity at which operation is possible at any

8

HP

(MAR-F81

l0

HP

(MAR-F1 O1 HTM8) 8

(4)

Only one multi-controller the systern is divided into two are necessary.

Note:

HTMB)

It is possible to connect indoor units unit (by a maxirnurn given time is the maximum capacity of the outdoor unit.

Table

Max.

Connected Unit Min. Code

is

needed when using up lo four indoor units, but for five to eight indoor units,

parts and a multi-controller is connected lo each, so two multi-controllers

of

13S0h),

4-3.)

Max.

3

a total capacity exceeding the capacity of the outdoor

2

27

Code

1

4-2.

Procedure

for

Checking

combination.

the

Combination

Note:

1

to

4

A

multi-controller

For

each

procedure

@

L

units

is

necessary

in

Decision on indmr unit and outdoor unit combination.

@

What

is

the

nurnber

of

indoor

the

even when

above

flow

only

chart,

using

please

one indoor

reter to

Fig.

unit.

4-1.

5

io

8

units

two

multi-wntrollers.

4-3.

Examples

of

Connection

Check

code

@Check

for

the

unii

qliantiy

Fig.

4-1

6-o)

.

Totai Indoor

<130>~9+3~3 0TYType33a3

Cr)

(130I~~pe-3ra

(200)

(200') (200)

Totai Indoor

unitcode

Outdoor

unitcode

Outdoor

~ype

-

:

L,,,,,,J

unit

Max.

Type

-c

Type

-

~~~e + 423 ~ype

-,

,,,,,,

unit

Max.

8z3

code

3 r 3

4

r

3

423

code

7

,

'

@~heck

for

M,,co*

h

,

'I

i

C

lhe

-

5.

SPECIFICATIONS

OF OUTDOOR

Table 5-1

UNIT

Model

Name

Cooling capacity (h 1) (kcallh) Heating capacity (*l

Power supply

Operating current

.-

-

O

Power consumption (kW)

8

Power factor

Operating currenl

.-

C

m

CB

Power oonsumption (kW)

I.

Power facior ("/o)

Starìing current Starting rnethod Dimensions Net

weight

Finished color Compressor

Fan unii

(H

(*2)

x W x

)

D)

TYP~

Motor output Fan Motor output Air flow volume (m3/h)

(kcallh)

(A)

(%l

(A)

(mm)

(kg)

(k

W)

(kW)

MAR-F81

18,000 (20,000)

18,600 (23,200)

12.3 (1

1 1.7 (15.3)

1,490 x 1,290

HTM8

3-phase 380 - 415V 50Hz

4.0)

8.0(9.2)

94

(95)

7.7 (10.1)

95

(95)

330

Silky gray (Munsell

5.6

MAR-FIO1

22,500 (25,000) 23,200 (29,000)

15.7 (17.2)

10.1 (11.5)

15.0 (20.0)

10.1 (13.6)

60

Direct

x

750

Herrnetically sealed

Propeller fan

0.15

1,490 x 1,290 x 750

6Y710.3)

x

2

10,000

93

97

HTMB

(96)

(98)

340

7.5

Refrigerant (charged weight)

Discharge gas side (mm) Liquid side (mm) Suction gas side (mm)

Coupler style

Max.

equivalenl piping length

Max. actual piping

Max. piping head

Crank case heater

Note:

Specificalions are subject to change without notice.

l:

al maxirnum capacity.

*2:

length

CoolingtHeating capacity

Power voltage,

ii

it varies, should be within a 10% range.

is

based on

(kg)

(m)

(W)

R-22

(17.6) R-22 (21.6)

019

015.9

025.4

Flare connection (liquid sideldischarge gas side), Brazing connection

100

:

The equivalent length is the base

many bends.

too 50: In case of outdoor unit installed above,

20: In case of outdoor unit installed below.

JIS B 8615. The value marked by

1

(suction gas side)

120

74

028.6

(

)

means operation

if

there are

5-1.

Explanation

of

Electric Characteristics Calculation

Calculate with the formulas below seeing Table

Totat input Total current

Total power factor

PT

=

CP

IT

=

~(CIP) + (CIv)

(kW)

f

=

Clp/l~

x

100

(A)

(Oh)

5-2.

Table

5-2

Model

Narne

Power consumption

CoOling

Effettive

Ineffective current Power consurnption P

Heating

Effettive

Ineffective current

Note:

Exarnple:

Rated

The value marked

MAR-F01HTM8

value at moling operation:

Total input Total current

Total power factor

Like this, calculate

by

operation

turns.

MAR-F81 HTM8

+

x

5.8

8.0 (9.2)

11.6 (13.3)

4.1

(4.4j

7.7

(10.1)

11.1

(14.5)

3.7

(4.9)

3

units

x

3)2

=

59.4

=

93

(%)

.(A)

P

(kW)

current

IIJ

IV

(A)

(kW)

current lp

Iv

by

(

)

means operation at rnaximum capacity.

x

1

unit

PT~

=

8.0 + 10.1 x 3 = 38.3

ITI

=

d(11.6 + 14.6

f

=

(1 1.6 + 14.6

the

maximurn value at cooling operation, both rated and maximurn value al heating

(A) (A)

+

MAR-FlOlHTM8

(kW)

x

312

+

(4.1

x3)

x

100/59.4

MAR-101

10.1

14.6 (16.5)

5.8

10.1 (13.6)

14.6

3.4

HTMB

(l

1.5)

(4.9)

(19.6)

(4.0)

6.

EXTERNAL

VIEW

6-1.

Side

air intake

Outdoor

Unit

750

Air

outlet

Anchor

boiis

for

anchor bolt

x

20(slotting hole)

Dimensions:

Model

MAR-

(UNIT:

I

A

mm)

Fig.

6-1

'

piping

To indoor uni1

To indooX1

A

To indoor unii

To indoor uni1 B To outdwr uni1

Electric

parts

box

Refri ant piping joint (Ilare) Liqui

A-TO

To indoor uni1 B To indoor unit

=or unx Toxdoor unit

C

Note: Please install

e019

D

Fig. 6-2

hole for

Oval hanging bolt

4

100 or more

A

I

-F

Slit for hanging bolt It is indispensable for test run and servicing.

-1

\

1

I

,I

-

Outdoor uni1 side

M

Or

Electric paris box or more

1

Note: Make an inspection opening at the sp~ified p"..

450rnm x 450rnm over

Suction gas side

Outdoor uni1 sidel

or

Neciri!= 500

g

-

I

Note: Make an inspeciion opening ai the specified place.

Il is indispensable for test run and servicing.

0

28.6

more or more

Indoor unit side

or more

450 x 450 inspection opening installation space

100 or more

I

T

Indoor unit side

500

or more

450 x 450 ins~ection

installation siace

iring entrance

igerant piping joint (Ilare)

Discharge gas side 0 19

I

opening

6-3.

RBM-HD821FE, RBM-HD1021FE

1-

0

36

O O

Liquid side 0 9.5

Fig. 6-3

450mm x 450rnm over

Suction gas side

0

28.6

Discharge gas side 0 19

7.

WIRING DIAGRAM

7-1.

Outdoor

Unit

(MAR-F1

01

HTMBlMARF81HTM8)

Inarlor

Cmtrol

PC bmrd

YCC-1251

Inlaloce Cmlrd

-14- -15-

PC

bmid

Fig.

YCC-1223

7-1

Multi-controller

r----------'------------------------------------------------------------------------

(RBM-Y1031 FE, Y1041 FE)

!

Rernenber:

7

For quick reference on connection between the

!

multi-controller ond indoor units. enter indoor unit models connected. instollotion locations, ond code setting in the toble below.

1. Oond

O

enclosed in them ore termino1 numbers.

2.

The two-dot dosh line indicotes wiring on site.

3.

EZZJ

indicates o printed circuit boord

4.

The C13frome indicotes the product body

5.

RBM-Y1031FE does not have PMVD. SVD(D) SVS(D),@- setting switch for room

Ports layout

Control

PC

boord

m

[

Termina1 plote

8

unii

8

I

i

L.B.A

a

Indoor

L.L.A

]

Indaor

,m

unit

i i

Indoor

L.2.J

8 8 8 8

unii

i

L-0-1

Syrnbol PMV A,B.C.D Th A.B.C,D,X Tr CS H MS

lndoar

unii

i i

Ouldcor

L--.l

Product Flow control volve Temperature sensor Power tronsforrner Float switch Heater Reset switch

unit

:

Symbol SVDiA).IBI.IC).(DI SVSiAl.(BI,(C).(DI SVDD SVSS SVH LD101.102.103.104

Electricolly operoted volve of discharge gas side Electrically operoted volve of suction gas side Electricolly operoted valve for pressure raising Electricolly operoted valve for pressure decreasing Electrically operated valve for superheot Foult indicotor lomp

8.

ELECTRICAL

PARTS

SPECIFICATIONS

8-1.

Model

Cornpressor motor

Blower

rnotor

Specifications

of

Refrigerant

Name

Model name Motor type Power supply

Output (kW)

Pole Coil resistance Cornpressor oil narne

Arnount of oil Model narne Motor type

Power supply Output Power supply (A) Pole Inner over-load relay

(p)

(Q)

(W)

(p)

Cycle

Parts

MAR-F81

HV990CW-YI 2

HTM8

3-phase induction motor

3-phase, 380 - 415V, 50Hz

5.6

212 (Inveder sidelNon-inverter side)

1.4912.51

(Inverter sidelbion-inverfer side)

SUNISO 3GSD

7,000~~

STF-200-150C

l

-phase, induction motor

1-phase, 220

1.12/1.44

OFF:115 f 5OC

MAR-FIO1

HV1200CW-Y12

-

240V, 50Hz

150

6

HTM8

7.5

High pressure switch

Low pressure switch

4-way valve Compressor case heater

Pressure sensor

Discharge temperature sensor Suction temperature sensor Outdoor air temperature sensor Flow rate adjustment valve Flow rate 2-way valve 2-way valve

Specifications are subject to change without notice.

Model name

Operating pressure (kg/crn2~)

Model narne

Operating

adjustment valve (for bypass)

pressure (kg/cm2~)

20PS-Bl20PS-G (Inverter side/Non-inverter side)

OFF: 30, ON:

ON: 1.5, OFF: 0.25

Model narne: 2S5F-A1

Input voltage: DC 12V

Output voltage:

25°C:

50W,

0°C: 32.8kR, 25°C: 10k2,5O0C: 3,6m 0°C: 32.8kLt25"C: IOkQ, 50°C:

EV23RC2, Coil DC 12V

EV18RC, Coil DC 12V

(RP100-03), Coil

NEV202DXF, Coil AC 240V

23/OFF:23,

20PS-1

V25-760B

AC240V, 74W

DC

50°C: 17.9kQ, 100°C:

ON:

0.5 - 4.5V

AC

240V

30

3.35kS1

3.6U

8-2.

Specifications

of

Inverter

Assembly

Parts

Model

Power supply

Output voiiage at operating frequency of

IGBT Relay

Blower motor running capacitor

Rectifier

AC noise filter

DC noise filter Power supply rectifier capacitor Fuse Electronic starter Reactor Fan

rnotor relay Control relay Magnetic contactor for Magnetic contactor for compressor

(Non-inverler side) Transformer (lnverter) Transformer (Interface)

Power supply

PC

board (tnverter)

termina1 plate

Narne

compressor (Inverter

60Hz

side)

MAR-FS1

HTM8

3-phase,

EAG45M605UF1,6pF450V

ZSG2208-02,8A, 250V

LNT2G222KSMCTF, 2200pFl4OOV

12A

380

AC

MG50Q6ES11

LY

1 F (AC 240V)

30U6P42,30A

LF215AV, 15A, 71

912X25ElOlYV20

CH-26-T, 6.2mH, 18A

G2R217PV

G4U-112P

FT13-2

ACGOOV, 60A

MCC-1251

-

41 5V, 50Hz

266V

20A

13A

FT57

MAR-Fl 01

6V

HTM8

15A

PC

board assembly (Interface)

Cooling

Specifications are subject to change without notice.

fan

MCC-1223

3650EXV-5,220 - 240V

8-3.

Specìfications of Multi-controller

Parts

Model Flow rate adjustment valve Temperature sensor Float switch

Power supply transformer

Relay (on Heater

Temperature fuse for heater Power current fuse for heater Discharge gas side solenoid valve

Suction gas side 2-way valve 2-way valve

Specifications are subject to change without

PC

board)

solenoid valve

Name

Model narne Specif ication

notice.

RBM-Y1031

0°C:

Prirnary side: AC 240V, Secondary side:

50W

REV-1506DXFQ6, Coil

FE

EV23RC5, Coil DC 12V

32.8m.

NEV202DXF, Coil NEV603DXF, Coil AC 240V

25OC: 1 OkR, 50°C:

FS-085-0031

FT56

G2R-117P,

10.4W/m

0FF:11S0C

RP100-03, Coil

Coil

I

1 A

AC

RBM-Y1041

DC

12V

65W

240V

AC

240V

AC

240V

3.6kn

FE

AC

12V

9.

CoolinglHeating Capacity Characteristics

9-1.

Range

15

Room

Temperature

('C

of

20 25

air wet-bulb

WB)

Operation

15

Room

20

25

air wet-bulb

Temperature Temperature

("C

WB)

@

15

Room

("C

20

air

dry-bulb

DB)

@

25

15

20

Room air dry-bulb

Temperature

('=C

DB)

25

30

Note:

Fig.

9-1

@:lndicates the standard internal air temperature

temperature range for

@:When cooling load

@:~hen

lhe

heating load

the indoor unit during the heating operation

is

higher and heat is being exhausted

is

higher and heat is being absorbed

for

the

cooling

from

operalion.

is

15

The

to

the outdoor una.

by

the outdoor unit.

internal air

28°C

DB.

9-2.

Cooling Capacity Calculation

Corrected

a

Room Air Wet-Bulb Temperature Conditions and Capacity Correction Factor

@

Indoor Unit

(Built-in

Air

Duct

cooling capacity = Standard

1.2

flow

Capaciry

rection

Volume

cor-

factor

1

0.9

0.8

and Capacity Correction Factor

Type Only)

Capacity correction factor

cooling

.l

capacity

.o

15 Room air wet-bulb temperature

Fig.

20

9-2

24

("C)

x

(a

x

@ x @

x

@)

Air

flow

volume variation ratio

Fig.

9-3

@

Ambient Air Dry-Bulb Temperature and Capacity Correction Factor

Capacity correction factor

Ambient air

dry-bulb

Fig.

temperature

9-4

(%)

("C)

@

Piping

Head,

Length and Capacity Correction Factor

&'r

I

ho

Outdoor unit

I

P'o

unit

9-3.

Heating

@

Room Air

10 20 30

Capacity

Corrected

Dry-Bulb

Capacity correction

40

50

60

70

80

Length (equivalent length)

Calculation

heating

factor

capacity = Standard

Temperature and

1.2

1.1

0.8 15 20 25

Room air dry-bulb temperatuer

90

100 110 120

L'

(m)

Fig.

9-5

heating

Capacity

Fig.

9-6

L'

is

the longest one of

H

=

ho

+

(largest one of

capacity

x

(a

x Q x

Correction Factor

("C)

4'0

@

ha,

x

+l'a,

hb and

@)

O'O

+

hc)

Eb,

4'0

+

O'C

@

Ambient Air Wet-BuIb Temperature and Capacity Correction Factor

Capacity

ction factor

corre-

1.3

1.2

0.5

-1

O

-5

Room

O

air wet-bulb temperature

5

10 15

("C)

Fig.

9-7

@

Indoor Unit Air Flow Volume and Capacity Correction Factor

(Only for Built-in Duct type)

@

Piping

Capacity

ction

facotr

corre-

1.1

1

.o

0.9

80

90 100

Air flow volume variation ratio

110

l20

(%)

Fig. 9-8

Head, Length and Capacity Correction Factor

7

hc

Outdoor

unit

Multi-Controller

O'c

Indoor unit

Length (equivalent length)

L'

(m)

Fig.

9-9

C

is

the longest one of

H

=

ho

+

(largest one of

2'0

ha,

+

l'a,

hb

4'0

and

+

hc)

Ib,

I'o

+

O's

10.

AIR TIGHTNESS

TEST,

AIR

PURGING

WITH

A

VACUUM

PUMP

AND

Make sure Lo multi-controller and outdoor unit.

Aiter the flushing conduct the Air Tightness Test, Air Purging and Additional Refrigerant charge in turn.

10-1.

This test uses nitrogen gas under the pressure of

(1)

(2)

(3)

(4)

CHARGING

do

the "Flushing" of the refrigerant pipes between indoor units and multi-controller,

work

is done, connect the pipes (liquid side, suction gas side, discharge gas side)

Air

Tightness

Do

not

operate the packed valve or service valve until completion of air purging. (Leave the valves

closed.) Air tightness test and air purging with a vacuum pump should be done before turning on the power

The

gauge rnanifold's charge hose has a

(06.4)

for the test.

Connect the copper pipe to the charge port

OF

Test

ADDITIONAL

30

kg/crn2~.

low

pressure resistance,

of

the suction gas pipe's service valve.

REFRIGERANT

so

always replace it

with

and

a

copper pipe

Note:

Liquid

pipe

Discharge

After connecting the copper pipe for charging, pressurize

then check that there

may be

a

gas leak. The piace(s) from where the gas is leaking should be checked.

Suction

gas

pipe

gas

pipe

Fig.

10-1

is

no change in the gas pressure.

to

30

kg/cm2~,

If

the gas pressure decreases, there

let stand for one day,

10-2.

(1)

(2)

(3)

(4)

Air

Purging

After completing the air lightness test, exhaust the nitrogen gas from the piping. Connect the charge hoses behveen the gauge manifold and

packed valve charge

Replace the nitrogen tank with lhe vacuum pump.

Carry on air purging with the vacuum pump for at least 2 or 3 hours.

t

he gauge manifold's valve

with

ports.

a

Vacuum

(Vd)

.

Pump

the

liquid pipe and discharge gas pipe's

When

air purging is completed, close

Note:

Liquid

pipe t Suction

Discharge

1.

To prevent leakage, we recommend you to use a pump with a large capacity purging

2.

Check that the gauge pressure

gas

quickly.

pipe

gas

pipe

is

-76

Fig.

10-2

cmHg.

and

complete

10-3.

(l)

(2)

(3)

(4)

Additional

Reptace the vacuum pump with the refrigerant tank, charge the stipulated arnount of refrigerant, and then open both packed valve and service valve fully. If additional charge is needed, conduct the following.

Switch the charge hose lo the suction gas pipe's service valve charge port (dotted lines 4 solid tines, one

charge

Attach the charge hose lightly to the suction gas pipes service valve charge loosen the refrigerant tank's valves (Va and charge

Next, tighten specified amount of refrigerant. refrigerant

hose as shown in Fig.

hose

is

the

in

gas form from the low pressure side lo supply the specified amounl.

Refrigerant

10-3).

expelled by the refrigerant.

hose fully, then loosen the service valve and use the pressure in the tank to add the

Il not enough refrigerant can be added, operate the unit and

Charging

Vb).

The air in the lank's

Low

Charge hose

pressure

port

at first and slightly

gas

hose, gauge rnanifold and

Gauge

manifold

draw

in the

Lquid pipe

Discharge

t

gas

Suction

pipe

gas

pipe

--2.

Fig.

-2.

10-3

.

\

9)

Gas

Refrigerant

5kg

tank

Spring

scale

gas

(20kg)

11.

PIPING

LENGTH

AND

ADDITIONAL

REFRIGERANT

AMOUNT

11-1.

At factory shipping, the "standard arnount of refrigerant" corresponding to the "standard piping length previously charged in outdoor unit. When the actual piping length exceeds the standard length, please add the supplemental refrigerant as follows.

Main

Main pipe:Piping between outdoor unit and multi-controller.

Branch pipe:Piping between multi-controller and each indoor unit. Arnount of additional refrigerant (kg) = Additional amount of main pipe pipe (kg)

Branch

Fig. 11-1

=~x(e,-3)

(One

+~ax

Multi-Controller)

Branch

(1,-2)

pipes

+Nbx

(lb-2) +Ncx(&-2) +Ndx (ed-2)

Table

11

-1

(kg)

+

additional amount of branch

is

Table

11-2 Amount of additional refrigerant

Outdoor Unit

MAR-F81

(Standard arnount of refrigerant

MAR-Fl

(Standard arnount of refrigerant 21.6kg)

M = Arnount of additional refrigerant for every (The value varies depending

Na,

(The

t,,

HTMB

17.6

kg)

O1

HTM8

Nb,

Nc,

Nd

=

Amount of additional refrigerant for every l m of actual length of branch pipe.

value, varies depending on the type of indoor unit.)

= actual length of main pipe (m)

tb,

&,Od

=

Actual length

(Equivalent Horse Power

130

(1.5

HP), 160 (2.0 HP), 200 (2.5 HP)

260 (3HP), 360 (4HP),460(5 HP)

130

(1.5

HP),

260

(3

HP),

on

the type of outdoor unit.)

of

branch pipe (m)

Indoor

Unit

Capacity Rank

160 (2.0 HP), 200

360

(4

HP),

l

m

of actual length of rnain pipe

460

(5

to

(2.5

HP)

Multi Type)

HP)

Additional Arnount

Na,

,,,,

(kg,m,

0.19

0.1

9

Nc,

(kglm)

0.030

0.045

0.030

0.045

Nb,

Nd

11-2.

Sub

Main pipe:Piping between outdoor unit and header. Sub pipe:Piping between header and each rnulti-controller. Branch pipe:Piping between multi-controller and each indoor unit. Arnount of additional refrigerant (kg) = Additional amount of main pipe (kg) +Additional amount of

pipe

(kg)

+~bx(8b-2)+~~x(e,-2)+~d~(id-2)+~e~(8,-2)+~f~(tf-2)+~g~(Q~-2)+~h~(!h-2)

Branch

Pipe

(Two

Sub

pipes

Multi-Controllers)

Branch

pipes

t

~ulli-conirolkr

Fig.

l

1-2

+

Additional amount of branch pipe (kg)

Bych

pipes

=

M

Standard piping

length

x

(10

-

2)

+

S

x

2

{(ti

Table

-

1)

11

-3

e,,

(m)

+

P,,

e2

&,&,eh

l

(e2

-l)} + Na x (ta - 2)

.tb,

4,

2

&,

te,

(m)

sub

Table

11-4

Amount of additional refrigerant

Outdoor

MAR-F81 HTM8 (Standard arnount of refrigerant

MAR-FIO1 (Standard amount of refrigerant

M

=

Arnount of additional refrigerant for every 1m ot actual length of main pipe

(The value varies depending on the type

S

=

Amount of additional refrigerant far 1 m o1 actual length of sub pipe. Na, Nb, Nc. pipe. (The

40

=

Aclual length of main pipe.

41,

t2

la,

tb

,

Unit

130 (1.5 HP), 160 (2.0 HP), 200

17.6

kg)

HTM8

21.6kg)

Nd,

Ne,

value varies depending on the capacity rank of indoor unit.)

=

Actual length of sub pipe (m)

h,

td,

te,

ef,

260 (3 HP),

130 (1.5 HP), 160

260

Nf,

Ng, Nh = Amount of additional refrigerant

.eg,

eh

Indoor Unit Capacity Ranks

(Equivalent Horse Power to Multi Type)

(2.5

360

(4

HP),

460

(5

HP)

(2.0

(3

HP),

360

(4

of

outdoor unit.)

HP), 200

HP), 460

(5

(2.5

HP)

(m)

=

Aclual length of branch pipe.

(m)

HP)

for

every

Additlonal Amount

M

(kglm)

0.19

Im

of actual length of branch

(kg'm)

0.125

Ne, Nf, Ng.

Nh

0.030

0.045

0.030

0.045

Na, Nb, Nc, Nd,

(kglm)

12.

DESCRIPTION

OF

OPERATION

12-1.

Simultaneous CoolingtHeating Operation Control Outline

12-1-1. Switching between the Cooling and Heating Operations for

Each Indoor Unit

The solenoid valves inside the muiti-controller are switched with requested commands sent from the indoor unii.

SVS

valve (at suction gas side) opens for a cooling command.

SVD

valve (al discharge gas side) opens for a heating command.

t

2-1-2.

Determining the Outdoor Unit Operation Mode (CoolingIHeating)

and Operation Frequency of the Compressor

The cooling or heating mode of the outdoor unit and Ihe operation frequency of the compressor are determined heating command frequencies of

by

difference between al1 ihe requested cooling command frequencies and al1 the requested

al1 the indoor units.

12-1-3. Controlling the Refrigerant Cycle in the Outdoor Unit during

SrmuItaneous Cooling-Dominant Operation

(I

)

FIOW

contro1

In order to divide the cooling exhaust heat appropriately to the indoor units in the heating operation and

outdoor heat exchanger, the opening of the between frequencies and by the operation frequency.

(2)

Pressure contro1 Constant high-pressure control is performed so that the capacity of the indoor units in the heating operation is maintained.

1)

2)

al1 the requested cooling comrnand frequencies and al1 the requested heating command

Outdoor fan control Switching between the outdoor main heat exchanger and the sub heat exchanger

PMV2

flow control valve is controlled by the difference

Since the high pressure outside air temperature is low and the difference between the cooling and heating command frequencies is

minimal, the main heat exchanger is switched to the sub heat exchanger which is srnaller than the

ordinary rnain exchanger.

12-1

-4.

Controlling the Refrigerant Cycle in the Outdoor Unit

may

drop even when the fan

is

shut down by the outdoor fan control

if

the

during Simultaneous Heating-Dominant Operation

(1)

Expansion valve control Control for preventing superheat is

(2)

~vaporaiing, temperature control The evaporating temperature control units in the cooling operation is maintained.

periormed

is

by

the outdoor heating expansion valve.

performed by outdoor fan control so that the capacity of Ihe indoor