User manual SAMSUNG MH070FXEA4A

[. . . ] E-1 ENGLISH Safety Precautions (Carefully follow the precautions listed below because they are essential to guarantee the safety of the equipment. ) WARNING · Always disconnect the air conditioner from the power supply before servicing it or accessing its internal components. · Verify that installation and testing operations are performed by qualified personnel. · Verify that the air conditioner is not installed in an easily accessible area. GENERAL INFORMATION Carefully read the content of this manual before installing the air conditioner and store the manual in a safe place in order to be able to use it as reference after installation. conditioner is sold or transferred. For maximum safety, installers should always carefully read the following warnings. [. . . ] (See the picture) Attach the transmitter PCB to the case in the control box in the outdoor unit, then connect the power and the communication cable between the transmitter and the outdoor unit; refer to the figure of page 19. If you install a transmitter to an outdoor unit, every indoor unit which is connected to an outdoor unit can be controlled simultaneously. Each outdoor unit connected to the same centralized controller has its own transmitter. 2 Fix the case with bolts (Control Box in the outdoor unit) 3 MH060FXA3B/MH070FXA4B / MH080FXA4B 4 Terminal side Transmitter 7seg. LED Display side Fix the case with bolts (Control Box in the outdoor unit) E-20 INSTALLING THE OUTDOOR UNIT CN01 (Whit) Transmitter PCB (Blue) CN03 Center Controller MH050FXA2B/MH060FXA3B MH070FXA4B/MH080FXA4B MH040FXA2B MH18VF1X/MH19VF1X Outdoor unit PCB CN01 (Whit) One housing is used for connection although there are 2 housings on the communication cable. Transmitter communication cable (Accessory in the transmitter) Terminal Block in the outdoor unit Terminal Block in the outdoor unit Terminal Block in the outdoor unit MH070FXA4B/MH080FXA4B MH060FXA3B MH040FXA2B/MH050FXA2B MH18VF1X/MH19VF1X The designs and shape are subject to change according to the model. K1 K2 K3 K4 Change DIPswitch-K2 in all indoor units PCB (K2 : ON OFF) E-21 ENGLISH Transmitter power cable (Accessory in the outdoor unit) INSTALLING THE OUTDOOR UNIT Checking Correct Earthing If the power distribution circuit does not have an earth or the earth does not comply with specifications, an earthing electrode must be installed. The corresponding accessories are not supplied with the air conditioner. Carbon plastic Steel core To earthing screw 1 2 Select an earthing electrode that complies with the specifications given in the illustration opposite. Determine a suitable location for the earthing electrode: In damp hard soil rather than loose sandy or gravel soil that has a higher earthing resistance Away from underground structures or facilities, such as gas pipes, water pipes, telephone lines and underground cables At least two meters away from a lightening conductor earthing electrode and its cable. The earthing wire for the telephone line cannot be used to earth the air conditioner. Dig a hole of the size indicated in the illustration opposite, drive the earthing electrode into position and cover the top of the electrode with the excavated soil. Install a green/yellow insulated earthing wire (Ø1. 6 mm, section 2 mm2 or greater): If the earthing wire is too short, connect an extension lead, soldering the connec tion and wrapping it with insulating tape (do not bury the soldered connection) Secure the earthing wire in position with staples If the earthing electrode is installed in an area of heavy traffic, its wire must be connected securely. Carefully check the installation, by measuring the earthing resistance with an earthing resistance tester. If the resistance is above the required level(Example:100), drive the earthing electrode deeper into the ground or increase the number of earthing electrodes. Connect the earthing wire to the earthing screw on the air conditioner. PVC-insulated green/ yellow wire, 2mm2 x 3. 5 m 50 cm 30 cm 3 4 5 6 Fixing the Unit in Position `X' mm `Y' mm The outdoor unit must be installed on a rigid and stable base to avoid any increase in the noise level and vibration, particularly if the outdoor unit is to be installed close to a neighbour. If it is to be installed in a location exposed to strong winds or at a height, the unit must be fixed to an appropriate support (wall or ground). Rubber leg 1 Y 319 Position the outdoor unit so that the air flow is directed towards the outside, as indicated by the arrows on the top of the unit. Attach the outdoor unit to the appropriate support using anchor bolts. If the outdoor unit is exposed to strong winds, install shield plates around the outdoor unit, so that the fan can operate correctly. Certainly fix up its rubber leg in order to prevent its vibration and noise. Model MH040FXA2B MH18VF1X MH19VF1X MH050FXA2B MH060FXA3B MH070FXA4B MH080FXA4B X 543 2 3 660 350 Designed to cut off residual vibration from outdoor unit to rack. (not supplied with product) OUTDOOR UNIT INSTALLED ON THE WALL BY RACK - Ensure the wall will be able to suspend the weight of rack and outdoor unit; - Install the rack close to the colum as much as possible; - Install proper grommet in order to reduce noise and residual vibration transferred by outoor unit towards wall. Soft rubber designed to cut off vibration from rack to wall. (not supplied with product) E-22 COMPLETING THE INSTALLATION Connecting Up and Purging the Circuit The outdoor unit is loaded with sufficient R410A refrigerant. Do not vent R-410A into atmosphere: it is a fluorinated greenhouse gas, covered by Kyoto Protocol, with a Global Warming Potential (GWP) = 1975. You should purge the air in the indoor unit and in the pipe. If air remains in the refrigerant pipes, it affects the compressor. It may cause reduction of cooling capacity and malfunction. Refrigerant for air purging is not charged in the outdoor unit. [. . . ] - Inlet air temp: From 11°K to 14°K (indicative delta T) In heating mode, the indoor fan motor can remain off to avoid cold air blown into conditioned space. E-29 ENGLISH COMPLETING THE INSTALLATION Switch Setting and Testing Operation (Cont. ) It could take maximum 60 minutes to operate for the protection of the compressor if the outdoor temperature is below -5°C. Ampere Limit Setting & Changing Procedure WARNING Do not adjust the "Ampere Limit Switch", if it's not necessary: before modifying it, evaluate the total number of electric and electronics loads consumption and use "Ampere limits switch" just as emergency solution or in case the system is anyway oversized compared to real thermal load needed. "Ampere Limit Switch" is initially set to the default value (table below). The designs and shape are subject to change according to the model. "Ampere Limit Switch" is on the PCB of outdoor unit. [. . . ]