Technibel Climatisation MCAV92C5TA Installation Instructions Manual

Multi split system air conditioner

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Installation instructions manual (43 pages)

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Contents

IMPORTANT!

Please Read Before Starting ................................. 1

1. Selection of Installation Site ............................... 2

2. Place and Space for Installation ........................ 3

3. Wiring ................................................................. 5

4. Refrigerant Tubing ............................................. 8

5. Insulation of Refrigerant Tubing ......................... 9

6. Tubing to be Used .............................................. 9

7. Tubing Connection ............................................. 9

8. Air Purging ....................................................... 10

Air Purging with a Vacuum Pump (for Test Run)

Service Valve Construction

Pump Down

Combination example

Indoor unit B

Indoor unit A

Outdoor unit

37.4163.208.0

01/02

INSTALLATION INSTRUCTIONS

- Multi Split system air conditioner -

Page

Indoor unit C

Model Combinations

Combine indoor and outdoor units only as listed

below. Three indoor units are combined with one

outdoor unit. Each indoor unit can be operated at

the same time or independently.

Indoor Units

MCAV92C5TA-/CAV92C5TA- x 2

MCAV/KPAV180C5VA- x 1

Power Source:

220/230/240 V, Single-phase, 50 Hz

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NOTE

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DKR8585C, four indoor units can

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be connected in the combination

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MCAV92C5TA-/CAV92C5TA- x 4

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For details of its installation, refer to the instruction

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manual of DKR8585C.

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Outdoor Unit

GRV340M3C5TA-

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GRV340M3C5TA-

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DKR8585C

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Table of Contents

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Summary of Contents for Technibel Climatisation MCAV92C5TA

Page 1: Table Of Contents
2. Place and Space for Installation ......3 Indoor Units Outdoor Unit 3. Wiring ..............5 4. Refrigerant Tubing ..........8 MCAV92C5TA-/CAV92C5TA- x 2 GRV340M3C5TA- 5. Insulation of Refrigerant Tubing ......9 MCAV/KPAV180C5VA- x 1 6. Tubing to be Used ..........9 7.
Page 2: Important
IMPORTANT! When Installing..ln a Ceiling, Wall or Floor Please Read Before Starting Make sure the ceiling/wall/floor is strong enough to hold the unit’s weight. It may be necessary to construct a This air conditioning system meets strict safety and strong wood or metal frame to provide added support.
Page 3: Selection Of Installation Site
1. Selection of Installation Site Maximum Allowable Tubing Length (L) and Elevation Difference (H) Tubing length (L) The Multi-Split System outdoor unit should be INDOOR installed as close to the indoor units as possible. UNIT Maximum allowable length of the refrigerant tubing and elevation difference between outdoor and indoor Less than elevation units are shown in Table 1.
Page 4: Place And Space For Installation
2. Place and Space for Installation Exhaust fan G Choose a place as cool as possible. The place should be well ventilated, and the intake air should Heat source not be hotter than the outside temperature. (max. Hot air 45 °C) G Avoid the vicinity of heat sources, exhaust fans, Outdoor unit etc.
Page 5 Air discharge chamber for top discharge You should install an air discharge chamber in the Air discharge field when: G It is difficult to provide a minimum space of 50 cm between the air discharge outlet and a nearby obstacle. G The air discharge faces a sidewalk and hot air will be directed toward passersby.
Page 6: Wiring
3. Wiring 3-1 General Precautions on Wiring Wiring Diagram Check the rated voltage on the unit's name plate This appliance must be before wiring according to the wiring diagram. WARNING grounded. (Fig. 3-1) Provide a power outlet to be used exclusively for each unit, with a power supply disconnect and a Power supply circuit breaker for overcurrent protection provided...
Page 7 CAUTION Examples of Incorrect Wiring The following are examples of improper wiring that result in system misoperation. You should confirm that you have wired the units correctly before beginning the test run. (Refer to Fig. 3-1.) Problem 1 • Compressor will start. Only outdoor unit will operate.
Page 8 Loose wiring may cause WARNING the terminal to overheat or result in unit malfunction. A fire hazard may also exist. Therefore, be sure all wiring is tightly connected. When connecting each power wire to the corresponding terminal, follow instructions "How to connect wiring to the terminal"...
Page 9: Refrigerant Tubing
4. Refrigerant Tubing Deburring 4-1 Use of the Flaring Method Before After Many of the conventional split system air conditioners employ the flaring method to connect refrigerant tubes which run between indoor and outdoor units. In this method, the copper tubes are flared at each end and connected with flare nuts.
Page 10: Insulation Of Refrigerant Tubing
5. Insulation of Refrigerant Tubing Insulation This outdoor unit uses a system of capillary tubes, which cause both the wide and narrow tubes to become cold. Min. min. Thickness: To prevent heat loss and condensation, these tubes must be 8 mm min.
Page 11: Air Purging
8. Air Purging Air and moisture remaining in the refrigerant system have undesirable effects as indicated below. Indoor units pressure in the system rises Unit A operating current rises cooling (or heating) efficiency drops moisture in the air circuit may freeze and block the capillary tubing Unit B water may lead to corrosion of parts in the refrigerant...
Page 12 (4) Leak test all joints at the tubing (indoor and outdoor) with liquid soap. Bubbles indicates a Indoor units leak. Be sure to wipe off the soap with a clean cloth. Unit A (5) After the system is found to be free of leaks, relieve the nitrogen pressure by loosing the charge hose connector at the nitrogen cylinder.
Page 13 c) Finishing job (1) With the hexagonal wrench, turn the wide tube service valve stem counterclockwise to fully open the valve. (2) Turn the narrow tube service valve stem counterclockwise to fully open the valve. (3) Loosen the vacuum hose connected to the wide tube service port.
Page 14 2) Using Outdoor Unit's Gas (Units A & B) Indoor units a) Evacuation (1) Connect a vacuum pump and a manifold valve Unit A (with pressure gauges) to the service port on the wide tube service valve for unit A. (Figs. 8-3 ) Be sure to use a manifold CAUTION Unit B...
Page 15 b) Leak test TERMINAL 8P (1) After confirming the power is off, disconnect the connector (GRN) (between timer and terminal 5) to separate A and B parts. (Fig. 8-4 ) Then connect part A of this connector (GRN) with the connector C (BLU) and turn on the power source.
Page 16 * How to Test Run the Air Conditioner. (1) Turn on the power source. (2) Set the operation selector switch of the indoor unit to the TEST position. This starts the fans, producing uncooled forced air with the OPERATION or OPR lamp lit. (Fig. 8-7) (3) After 3 minutes, the system shifts into cooling operation, and cool air will start to be felt.
Page 17 Wide Tube Narrow Tube Service Valve Construction Valve cap O-ring Valve Position -a- The valve stems of both wide and narrow tubes are turned all the way in. The unit is shipped from Stem the factory in this position. (Fig. 8-8a) Valve Position -b- The valve stems of both wide and narrow tubes are turned all the way out ("BACK SEAT"...
Page 18 In order to carry on a constant improvement, our products can be modified without prior notice. Per garantire un costante miglioramento dei nostri prodotti, ci riserviamo di modificarli senza preavviso. Par souci d’amélioration constante, nos produits peuvent être modifiés sans préavis. Unsere Produkte werden laufend verbessert und können Vorankündigung abgeändert Werden.

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Mcav/kpav180c5va Grv340m3c5ta Dkr8585c

Technibel Climatisation MCAV92C5TA Installation Instructions Manual

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