2.4. Optional accessories ............... 3 OTHER DAMAGE TO THE EQUIPMENT. BE SURE ONLY 2.5. Technical and electrical specifications..........3 TO USE ACCESSORIES MADE BY DAIKIN WHICH ARE 3. Before installation ..............3 SPECIFICALLY DESIGNED FOR USE WITH THE 3.1. Precautions for R-410A ..............3 EQUIPMENT AND HAVE THEM INSTALLED BY A 3.2.
CAUTION WARNING Carry out the specified installation work in consideration Do not install the air conditioner in places such as the of strong winds, typhoons, or earthquakes. following: Improper installation work may result in accidents due Where there is mist of mineral oil, oil spray or vapor to fall of equipment.
2.2. Combination EFORE INSTALLATION The indoor units can be installed in the following range. Always use appropriate indoor units compatible with R-410A. Since design pressure is 4.0 MPa or 40 bar, pipes of larger To learn which models of indoor units are compatible with wall thickness may be required.
Places where lengths of piping and wiring for indoor units, BP The equipment described in this manual may cause units and outdoor units come within the allowable ranges. electronic noise generated from radio-frequency energy. Places where water leaking from the unit cannot cause The equipment complies to specifications that are damage to the location (e.g.
5.1. Installation method for prevention of falling over (B) In case of stacked installation In case obstacles exist in front of the outlet side. If it is necessary to prevent the unit from falling over, install as shown in the figure. prepare all 4 wires as indicated in the drawing unscrew the top plate at the 4 locations indicated A and B put the screws through the nooses and screw them back tight...
Vacuum pump: EFRIGERANT PIPE SIZE AND ALLOWABLE Use a 2-stage vacuum pump with a non-return valve PIPE LENGTH Make sure the pump oil does not flow oppositely into the system while the pump is not working. Use a vacuum pump which can evacuate to –100.7 kPa (5 Torr, All field piping must be installed by a licensed refrigeration –755 mm Hg).
When loosening a flare nut, always use two wrenches in To install the connecting pipe to the unit in a downward direction, combination. When connecting the piping, always use a spanner make a knockout hole by penetrating the center area around the and torque wrench in combination to tighten the flare nut.
9.6. Precautions when connecting field piping and For cooling operation under low ambient temperature or any other operation under low pressure, apply silicon pad or similar regarding insulation to prevent freezing of the gas stop valve flare nut (see figure). Be careful not to let the BP unit and outdoor branch piping come Freezing of the flare nut may cause refrigerant leak.
9.8. Leak test and vacuum drying The units were checked for leaks by the manufacturer. figure 6 and refer to "Additional refrigerant charge" on page 10 for nomenclature of the parts in figure 6. • Confirm that the gas and liquid line stop valves are firmly closed before pressure test or vacuuming.
10. E To avoid compressor breakdown. Do not charge the refrigerant LECTRICAL WIRING WORK more than the specified amount. This outdoor unit is factory charged with refrigerant and depending on pipe sizes and pipe lengths some systems require All wiring must be performed by an authorized additional charging of refrigerant.
10.4. Connecting power wire and transmission wires Y2S......Solenoid valve (receiver gas purge) Y3S......Solenoid valve (4 way valve) Let the power wire (including ground wire) go through the power Z1C~Z3C ....Noise filter (ferrite core) outlet port on either the front, side or back of the outdoor unit. Let the transmission wires go through the cable outlet port, pipe Z1F ......
Use a power wire pipe for the power wiring. Precautions when laying power wiring Outside the unit, make sure the low voltage electric Use round pressure terminals for connections to the power wiring (i.e. for the remote control, between units, etc.) terminal block.
11. B EFORE OPERATION Performing cool/heat setting with the cool/heat selector Connect the cool/heat selector remote controller (optional) to the A/ 11.1. Service precautions B/C terminals and set the cool/heat selector switch (DS1) on the outdoor unit PC board (A1P) to OUT/D UNIT. (See figure 13).
Setting the push button switch (BS1~5) Power supply wiring and transmission wiring Use a designated power supply and transmission wiring and Function of the push button switch which is located on the outdoor make sure that it has been carried out according to the unit PCB (A1P): instructions described in this manual, according to the wiring diagrams and according to local and national regulations.
11.4. Test operation Setting mode 2 The H1P led is on. NOTE After turning on the power supply, the unit can not be started until the H2P initialisation led goes off Setting procedure (maximum 12 minutes). Push the button according to the required function BS2 SET (A~C).
12. S Error codes on the remote controller: ERVICE MODE OPERATION Malfunction After turning on the power supply, the unit can not be started untill the Installation error code Remedial action H2P initialisation led, indicating that the unit stil is under preparation, The stop valve of an Open the stop valve on both the gas goes off (maximum 12 minutes).
13. C AUTION FOR REFRIGERANT LEAKS Calculate the smallest room volume (m In a case such as the following, calculate the volume of (A), (B) as a single room or as the smallest room. (Points to note in connection with refrigerant leaks.) Where there are no smaller room divisions 13.1.
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