Technibel MTV72C5 Manual

TECHNICAL DATA & SERVICE MANUAL

MTV72C5 (R407C)

MTF73C5 (R410A)

0.8180.230.1 06/2003

1. SPECIFICATIONS 3

1-1 Unit Specifications 3

1-2 Major Component Specifications 5

2. DIMENSIONAL DATA 6

2-1 Unit Dimensions 6

3. ELECTRICAL DATA 6

3-1 Electric Wiring Diagram 6

4. REFRIGERANT FLOW DATA 7

4-1 Refrigerant Flow Diagram 7

5. FUNCTION 8

5-1 Room Temperature Control 8

6. PERFORMANCE DATA 9

6-1 Performance Chart 9

7. TROUBLESHOOTING 10

7-1 The unit does not work 10

7-2 Circuit breaker trips when "ON" button is pressed 10

7-3 Fan motor does not work while "ON" button is pressed 11

7-4 Fan works at one speed only 11

7-5 Poor cooling 11

7-6 Fan motor works normally but the compressor does not operate 12

1. SPECIFICATIONS

1-1 Unit Specifications

MTV72C5 (R407C)

Power source

olta

e ratin

Performance (1)

acit

Air flow rate (evaporator) Hi/Lo m³/h

Air flow rate (condenser) Hi/Lo m³/h

Moisture removal l/h

Moisture removal (2) l/24h

Moisture removal (3) l/24h

Electrical ratin

s(1)

Available voltage range V

Power input W

Running amperes A

Power input (2) W

Running amperes (2) A

Power input (3) W

Running amperes (3) A

Compressor locked rotor A

Features

Controls/Temperature controls

Control unit

Fan speed

Air Filter

Operation sound Lp (4) Hi/Lo dB(A)

Compressor

Refrigerant / Amount charged at shipment g

Refrigerant control

Water tank capacity liters

Flexible exhaust tube I.D. mm

extended length m

Hole in the window mm

Electric cable with plug length m

Dimensions & Wei

Unit dimensions Height mm

Width mm

Depth mm

Package dimensions Height mm

Width mm

Depth mm

Volume m³

Weight Net kg

Shipping kg

Rating conditions

(1) Cooling indoor air temperature: 27 °C d.b. , 19 °C w.b

(2) Dehumidification indoor air temperature: 27 °C d.b. , 19 °C w.b , 60% u.r.

(3) Dehumidification indoor air temperature: 30 °C d.b. , 27 °C w.b , 80% u.r.

(

)

Referin

data: room size 100 m3, reverberation time 0,5 s , distance 2 m

Operating limits

Cooling

Dehumidification

Data subject to change without notice

565

0,28

450

861

455

356

1110

62 / 57

138

2,7

Manual thermostat

Washable

- 740

- 3,4

- 3,2

700 -

3,4 -

-35

WITHOUT AIR EXHAUSTING TUBE

1700 -

198 - 264

0,5 -

280 / 230 260 / 200

220 / 180

220 - 240 V ~ 50 H

230 V

Rotary (hermetic)

R407C / 420

Switches on the uni

- 680

COOLING DEHUMIDIFICATION

WITH AIR EXHAUSTING TUBE

Indoor air temperature

Capillary tub

maximum

35 °C d.b. , 24 °C w.b

minimum

19 °C d.b. , 14 °C w.b

~ 3

115

MTF73C5 (R410A)

Power source

olta

e ratin

Performance (1)

acit

Air flow rate (evaporator) Hi/Lo m³/h

Air flow rate (condenser) Hi/Lo m³/h

Moisture removal l/h

Moisture removal (2) l/24h

Moisture removal (3) l/24h

Electrical ratin

s(1)

Available voltage range V

Power input W

Running amperes A

Power input (2) W

Running amperes (2) A

Power input (3) W

Running amperes (3) A

Compressor locked rotor A

Features

Controls/Temperature controls

Control unit

Fan speed

Air Filter

Operation sound Lp (4) Hi/Lo dB(A)

Compressor

Refrigerant / Amount charged at shipment g

Refrigerant control

Water tank capacity liters

Flexible exhaust tube I.D. mm

extended length m

Hole in the window mm

Electric cable with plug length m

Dimensions & Wei

Unit dimensions Height mm

Width mm

Depth mm

Package dimensions Height mm

Width mm

Depth mm

Volume m³

Weight Net kg

Shipping kg

Rating conditions

(1) Cooling indoor air temperature: 35 °C d.b. , 24 °C w.b

(2) Dehumidification indoor air temperature: 27 °C d.b. , 21 °C w.b , 60% u.r.

(3) Dehumidification indoor air temperature: 30 °C d.b. , 27 °C w.b , 80% u.r.

(

)

Referin

data: room size 100 m3, reverberation time 0,5 s , distance 2 m

Operating limits

Cooling

Dehumidification

Indoor air temperature

Capillary tub

maximum

35 °C d.b. , 24 °C w.b

minimum

19 °C d.b. , 14 °C w.b

~ 3

115

220 - 240 V ~ 50 H

230 V

Rotary (hermetic)

R410A / 380

Switches on the uni

- 670

COOLING DEHUMIDIFICATION

WITH AIR EXHAUSTING TUBE WITHOUT AIR EXHAUSTING TUBE

1500 -

198 - 264

0,5 -

300 / 230 280 / 200

200 / 160 240 / 180

-40

- 2,9

825 -

3,6 -

- 710

- 3,2

Manual thermostat

Washable

54 / 50 54 / 52

138

2,7

450

861

455

356

1110

Data subject to change without notice

565

0,28

1-2 Major Component Specifications

Thermostat (TA)

Controls

setting °C

differential °C

Full tank indicator lamp (IL)

ON / OFF switch (SW1)

HI / LO speed switch (SW2)

Fan & Fan Motor (FM)

Type

Q'ty ……. Dia. and lenght mm

No. Of poles

Rpm Hi / Lo speed

Nominal input (230 V) W

type

open °C

close °C

(C1)

µF

VAC

Float microswitch (MS)

Contact rating

down

Power relay (compressor) (PR)

Contact rating

Coil supply

Coil resistance (20 °C) Ω

Compressor (CM)

Model 80203245 (R407C) 5RS080EAA (R410A)

Nominal input (230 V) W 620 550

Compressor oil cc 370 300

C - R Ω4,7 ± 7% 5,2 ± 7%

C - S Ω6,8 ± 7% 5,5 ± 7%

Safety devices (OLR)

Type MRA98730 (R407C) MRA99137 (R410A)

open °C 130 ± 5 °C 145 ± 5 °C

close °C 69 ± 11 °C 69 ± 9 °C

Operating amperes (25 °C) open with 13 A in 6 ÷ 16 s 14 A in 6 ÷ 16 s

Run capacitor (compressor) (C2) R407C R410A

µF 15 20

VAC 450 450

Heat exchanger coil

Coils

Rows

Fin pitch mm 1,8 (R407C) 1,3 (R410A)

Face area m² 0,032 (R407C) 0,034 (R410A)

Heat exchanger coil

Coils

Rows 4 (R407C) 5 (R410A)

Fin pitch mm 1,8 (R407C) 1,3 (R410A)

Face area m² 0,072 (R407C) 0,067 (R410A)

Data subject to change without notice

Ω

Safety devices

Run capacitor

operating temp.

Operating temperature

Thermostat

Coil resistance ( 20°C)

Coil resistance (20 °C )

TR2 9215

Manual

16,5 ± 1,5 ÷ 31,5 ± 2

1,5 ± 1

21W02000D1 250 V - T 90 °

2905-F 16 A (4) - 250

M01852

Centrifugal blowe

1…. Ø 170 / L 156

Cooling: 1280 / 1060 ; Dehumidification: 1250 / 100

110

BLU-BLK: 85 ± 7%

WHT-BLK: 135 ± 7%

BLK-BRN: 112 ± 7%

Thermosta

150 ± 10

Automati

3,15

450

CROUZET F83161.

12(3) A - 250 VAC

open

FINDER 65.31

30 A - 250

230 V ~ 50 H

7250 ± 10%

Rotary (hermetic)

External typ

Evaporator coil

Aluminium fin / Copper tub

Condenser coil

Aluminium fin / Copper tub

2. DIMENSIONAL DATA

2-1 Unit Dimensions

3. ELECTRICAL DATA

3-1 Electric Wiring Diagram

CAPACITOR

BLACK

BLK

COMPRESSOR

BLUE

BLU

FAN MOTOR

BROWN

BRN

INDICATING LAMP

GREEN/YELLOW

GRN/YEL

SAFETY FLOAT SWITCH

GRAY

GRY

OVERLOAD PROTECTOR

OLR

ORANGE

ORG

COMPRESSOR RELAY

PINK

PNK

ON / OFF SWITCH

SW1

RED

FAN SPEED SWITCH

SW2

VIOLET

VLT

AMBIENT THERMOSTAT

WHITE

WHT

TERMINAL BLOCK

YELLOW

YEL

Legend of colors

4. REFRIGERANT FLOW DATA

4-1 Refrigerant flow diagram

5. FUNCTION

5-1 Room Temperature Control

Room temperature control is obtained by cycling the compressor ON and OFF by means of room

temperature thermostat

ON / OFF SWITCH

COMPRESSOR ON

+1,5 K

SET

TEMPERATURE

FAN SPEED SWITCH

NOTE

Allow 3 minutes before restarting the unit by the on / off switch or thermostat knob.

SET SPEED

6. PERFORMANCE DATA

6-1 Performance Chart

4,9 32

Operating characteristics with relative humidity around 50%

MTV72C5 (R407C)

MTF73C5 (R410A)

2,5

3,5

18 20 22 24 26 28 30 32 34 36

Room temperature (°C)

Operating current (A)

2,5

3,5

18 20 22 24 26 28 30 32 34 36

Room temperature (°C)

Operating current (A)

7. TROUBLESHOOTING

7-1 The unit does not work

Check the voltage. Are NO Check the unit YES Check the electrical

there 198 ÷ 264 volts ? electrical cable supply line

YES

Check if thermostat NO Check the ambient YES

contact temperature must be Replace the thermostat

is closed (C-2) over 16,5°C

YES

Check if there is voltage NO Check if tank micro -

on the on/off switch (SW1) switch contacts are

(contact is closed 2-4) closed

(1 - 2 MS contacts)

Check if the pilot NO Is the flickering alarm

lamp is burnt. lamp on the control

Eventually replace it panel not visible ?

7-2 Circuit breaker trips when "ON" button is pressed

Check the unit hardness NO Insulate the short

Is it insulated ? circuit cable

YES

Check if the fan motor is NO Replace the fan motor

working (FM) (FM)

YES

Check if compressor relay NO Fir electrical

connections are insulated connections properly

YES

Check if compressor relay YES Replace the compressor

works. Is it in short circuit? relay

Check if compressor YES Replace the

windings are in compressor

short circuit

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