Daikin 2MXS18NMVJU Installation Manual
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Summary of Contents for Daikin 2MXS18NMVJU
- Page 1 DAIKIN ROOM AIR CONDITIONER INSTALLATION MANUAL R410A Split Series Installation manual Manuel dinstallation Manuel dinstallation Manual de instalación MODELS 2MXS18NMVJU 3MXS24NMVJU 4MXS36NMVJU 2MXL18QMVJU 3MXL24QMVJU...
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Page 2: Table Of Contents
Contents Safety Considerations ........1 3. Refrigerant piping ............8 4. Pressure test and evacuating system ......9 Accessories ............. 3 5. Refilling refrigerant ............10 Precautions for Selecting a Location ... 3 6. Charging with refrigerant ..........10 7. Refrigerant piping work ..........11 Precautions on Installation ...... - Page 3 (c) Near machinery emitting electromagnetic waves. pressure switch, thermal switch, or other protection device Electromagnetic waves may disturb the operation of is shorted and operated forcibly, or parts other than those the control system and cause the unit to malfunction. specified by Daikin are used, fire or explosion may occur. (d) W here flammable gas may leak, where there is carbon fiber, or ignitable dust suspension in the air, or where CAUTION volatile flammables such as thinner or gasoline are handled.
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Page 4: Accessories
Accessories Installation manual Drain cap (1) Drain socket This is at the bottom of the packaging. Drain cap (2) Reducer assy Warranty Precautions for Selecting a Location 1) Choose a place solid enough to bear the weight and vibration of the unit, where the operating sound will not be amplifi ed. 2) Choose a location where the hot air discharged from the unit or the operating sound will not cause a nuisance to the neighbors of the user. -
Page 5: Precautions On Installation
Precautions on Installation • Check the strength and level of the installation surface so that the unit does not cause any operating vibrations or noise after installation. • Fix the unit in place securely using foundation bolts, as in the figure. (Prepare 4 sets of 5/16 inch (M8) or 3/8 inch (M10) foundation bolts, nuts and washers; all separately available.) • It is best to screw in the foundation bolts until their ends are 3/4 inch (20mm) from the foundation surface. -
Page 6: Connections (Connection Port)
Connections (connection port) Install the indoor unit according to the table below, which shows the relationship between the class of indoor unit and the corresponding port. The total indoor unit class that can be connected to this unit: 2MXS18*, 2MXL18* – Up to 24000 Btu 3MXS24*, 3MXL24* –... -
Page 7: How To Use Reducers
How to Use Reducers No.1 No.2 No.3 No.4 No.5 No.6 φ5/8” φ1/2” φ5/8” φ1/2” φ5/8” φ5/8” φ1/2” φ3/8” φ1/2” φ3/8” φ3/8” φ3/8” Gasket (1) Gasket (2) Reduce and gasket • Use the reducers supplied with the unit as described below. (1) Connecting a pipe of φ1/2 inch (12.7mm) to a gas pipe connection port for φ5/8 inch (15.9mm) : No. -
Page 8: Installation Space Requirements
Installation Space Requirements • Where a wall or other obstacle is in the path of outdoor unit’s intake or exhaust airflow, follow the installation space requirements below. • For any of the below installation patterns, the wall height on the outlet side should be 47-1/4 inch (1200mm) or less. Wall facing one side Walls facing two sides More than More than 3-15/16 (100) 13-3/4 (350) More than... -
Page 9: Outdoor Unit Installation
Outdoor Unit Installation Installing the outdoor unit 1) When installing the outdoor unit, refer to “Precautions for Selecting a Location” on page 3 and the “Outdoor Unit Installation Diagram” on page 4. 2) If drain work is necessary, follow the procedures below. Drain work CAUTION Drain cap (1) -
Page 10: Pressure Test And Evacuating System
Outdoor Unit Installation Pressure test and evacuating system WARNING • Do not mix any substance other than the specified refrigerant (R410A) into the refrigeration cycle. • If refrigerant gas leaks should occur, ventilate the room as soon and as much as possible. • R410A, as well as other refrigerants, should always be recovered and never be released directly into the environment. • Use a vacuum pump for R410A exclusively. Using the same vacuum pump for different refrigerants may damage the vacuum pump or the unit. -
Page 11: Refilling Refrigerant
Refilling refrigerant Check the type of refrigerant to be used on the machine nameplate. Precautions when adding R410A Fill from the liquid pipe in liquid form. R410A is a mixed refrigerant, so adding it in gas form may cause the refrigerant composition to change, preventing normal operation. 1) Before filling, check whether the cylinder has a siphon attached or not. (It should have something like “liquid filling siphon attached” displayed on it.) Filling a cylinder with an attached siphon Filling other cylinders Stand the cylinder upright when filling. -
Page 12: Refrigerant Piping Work
Outdoor Unit Installation Refrigerant piping work 7-1. Cautions on pipe handling Wall Be sure to place a cap. • Protect the open end of the pipe from dust and moisture. Rain • All pipe bends should be as gentle as possible. Use a pipe bender for If no flare cap is bending. -
Page 13: Wiring
Wiring WARNING • Do not use tapped wires, extension cords, or starburst connections, as they may cause overheating, electric shock, or fire. • Do not use locally purchased electrical parts inside the product. (Do not branch the power for the drain pump, etc., from the terminal block.) Doing so may cause electric shock or fire. • Be sure to install a ground fault circuit interrupter. (One that can handle higher harmonics.) (This unit uses an inverter. - Page 14 Wiring [Wiring procedure] Outdoor unit 1) Strip the insulation from the wire (3/4inch (20mm)). power supply Room Room 2) Connect the inter-unit wires between the indoor and outdoor units so that the terminal numbers match. Room Room Tighten the terminal screws securely. It is recommended that a flathead screwdriver be used to tighten the screws.
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Page 15: Priority Room Setting
Priority Room Setting • To use priority room setting, initial settings must be made when the unit is installed. Explain the priority room setting, as described below, to the user, and confirm whether or not the user wants to use priority room setting. Setting it in the guest and living rooms is convenient. About the priority room setting function The indoor unit for which priority room setting is applied takes priority in the following cases. 1) Operation mode priority The operation mode of the indoor unit which is set for priority room setting takes priority. -
Page 16: Night Quiet Mode Setting
Night Quiet Mode setting • If night quiet mode is to be used, initial settings must be made when the unit is installed. Explain night quiet mode, as described below, to the user, and confirm whether or not the user wants to use night quiet mode. About night quiet mode The night quiet mode function reduces operating noise of the outdoor unit at nighttime. This function is useful if the user is worried about the effects of the operating noise on the neighbors. However, if night quiet mode is running, cooling capacity will be saved. -
Page 17: Pump Down Operation
Pump Down Operation In order to protect the environment, be sure to pump down when relocating or disposing of the unit. 1) Remove the valve cap from liquid stop valve and gas stop valve. Close 2) Carry out forced cooling operation. Gas stop valve 3) After 5 to 10 minutes, close the liquid stop valve with a hexagonal Hexagonal... -
Page 18: Trial Operation And Testing
Trial Operation and Testing • Before starting the trial operation, measure the voltage at the primary side of the circuit breaker. • Check that all liquid and gas stop valves are fully open. • Check that piping and wiring all match. The wiring error check can be conveniently used for underground wiring and other wiring that cannot be directly checked. -
Page 19: Trial Operation And Testing
Trial operation and testing • During the trial operation, first check the operation of each unit individually. After this, check the simultaneous operation of all indoor units. Check both COOL and HEAT operations. 2-1. Measure the supply voltage and make sure that it is within the specified range. 2-2. In COOL operation, select the lowest programmable temperature; in HEAT operation, select the highest programmable temperature. 2-3. Carry out the trial operation following the instructions in the operation manual to ensure that all functions and parts, such as the movement of the flap, are working properly. - Page 20 Two-dimensional bar code is a manufacturing code. 3P379970-8B M15B137 (1511) HT...