OTHER DAMAGE TO THE EQUIPMENT. BE SURE ONLY Insufficient capacity of the power supply circuit or improper TO USE ACCESSORIES MADE BY DAIKIN WHICH ARE electrical construction may lead to electric shocks or fire. SPECIFICALLY DESIGNED FOR USE WITH THE Make sure that all wiring is secure, using the specified wires and...
EFORE INSTALLATION Caution Ground the air conditioner. Since maximum working pressure is 4.0 MPa or 40 bar, Grounding resistance should according national pipes of larger wall thickness may be required. Refer to regulations paragraph "Selection of piping material" on page Do not connect the earth wire to gas or water pipes, lightning conductor or telephone earth wire.
See the figure below for the location of the accessories. When installing the unit in a place exposed to strong wind, pay special attention to the following. Strong winds of 5 m/sec or more blowing against the outdoor Accessories unit's air outlet causes short circuit (suction of discharge air), and this may have the following consequences: Deterioration of the operational capacity.
RECAUTIONS ON INSTALLATION NSTALLATION SERVICING SPACE Check the strength and level of the installation ground so that The numerical figures used in here represent the dimensions for the the unit will not cause any operating vibration or noise after 71-100-125-140 class models. Figures between ( ) indicate the installation.
Refrigerant pipe size In case of installing multiple units (2 units or more) in lateral connection per row. Refer to figure 3 for twin system, to figure 4 for triple system and to figure 5 for double twin system. Main pipe (pipe between outdoor and first branch). The pipes should have the same size as the outdoor connections.
Allowable pipe length and height difference Existing or pre-installed piping can be used See the table below concerning lengths and heights. Refer to figures Piping must comply with the criteria below. 2, 3, and 5. Assume that the longest line in the figure corresponds •...
In case of simultaneous operating system EFRIGERANT PIPING Upward and downward piping should be performed at the main piping line. Field pipes can be installed in four directions. Use branch piping kit (optional) for branching refrigerant pipes. Precautions to be taken. (For details, refer to the manual attached to branch piping kit.) Install the branch pipes horizontally (with a maximum inclination of 15°) or vertically.
Cautions for handling service port Since the side boards may be deformed if only a torque wrench is used when loosening or tightening flare nuts, always lock the Always use a flexible charge hose with a push-rod and valve to stop valve with a wrench and then use a torque wrench.
If a torque wrench is not available, be aware that the tightening VACUATING torque may increase suddenly. Do not tighten nuts any further than to the angle as listed. Do not purge the air with refrigerants. Use a vacuum pump to vacuum the installation.
HARGING REFRIGERANT For pair system Table 1: Additional charging of refrigerant <unit: kg> Important information regarding the refrigerant used Standard liquid pipe size This product contains fluorinated greenhouse gases covered by the Connected piping length is between Kyoto Protocol. Do not vent gases into the atmosphere. Model 30~40 m 40~50 m...
Page 14
Precaution for pumping-down operation In case of complete recharge of the refrigerant, please first The outdoor unit is equipped with a low pressure switch or a low execute vacuuming. Execute this vacuuming from the pressure sensor to protect the compressor. service port.
Lay the electrical wiring so that the front cover does not rise up LECTRICAL WIRING WORK when doing wiring work and attach the front cover securely. All field wiring and components must be installed by a licensed electrician and must comply with relevant European and national regulations.
Precautions on wiring of power supply and inter-unit Specifications of standard wiring components wiring 71V1 100V1 125V1 140V1 100W1 125W1 140W1 Use a round crimp-style terminal for connection to the power Minimum circuit supply terminal board. In case it cannot be used due to 18.9 27.6 28.8...
Be sure to perform a test run. In case the panels of indoor units are not yet installed to the indoor units, make sure to shut off the power supply after Be sure to fully open the liquid-side and gas-side stop valves. If finishing the complete test run.
IRING DIAGRAM : Wire clamp : Black : Terminal : Green : Connector : Brown : Relay connector : Blue : Field wiring : Orange : Red : White : Yellow : Refer to the service manual for connecting wiring to X6A. : The position of the selector switches (DS1) indicate the factory setting.