Daikin REYQ72PAYD Installation Manual

INSTALLATION MANUALSystem air conditionerEnglishFrançaisEspañolREYQ72PAYDREYQ96PAYDREYQ120PAYDREYQ72PATJREYQ96PATJREYQ120PATJ

6 English6-5 Example of connectionB1 B2 B3 B4Example of connection(Connection of 8 indoor units)Outside unitside(3 pipes)Indoor unitside(2 pipes)Sucti

English 7Outside unit multi connection piping kit andRefrigerant branch kit selectionPipe size selection• Refrigerant branch kits can only be used wit

8 EnglishRequired Conditions Example Drawings1. It is necessay to increase the pipe size between the first branch kit and the final branch kit. (Reduc

English 97. FIELD WIRINGNOTE• All field wiring and components must be installed by a licensed elec-trician and must comply with relevant local and nat

10 EnglishNOTE• Open the knock holes with a hammer or the like.• After knocking out the holes, we recommend you remove any burrs and paint them using

English 11• When two wires are connected to a single terminal, connect them so that the rear sides of the crimp contacts face each other. Also, make s

12 English<Vacuum drying>Evacuate the system from the liquid pipe, suction gas pipe, HP/LP gas pipe and equalizer pipe shutoff valve service por

English 13Tightening torqueThe sizes of the shutoff valves on each model and the tightening torque for each size are listed in the table below.<Siz

14 EnglishCAUTION• Make sure to use the protect tool (protective groves and goggles) when charging the refrigerant.• Due to a danger of liquid hammer,

English 15• After H2P stop blinking (about 12 minutes after turning on the power), check H2P is OFF.If H2P is ON, check the malfunction code in the re

figure 1 figure 3figure 2figure 4 figure 6figure 5figure 7 figure 8 figure 9 figure 10figure 11figure 1221≥3/8≥3/8≥3/8≥3/4≥3/4≥2≥2≥2≥7-7/8≥15-3/4 ≥15-

16 English6.After completing the additional refrigerant charging, record the charging amount on the accessory “REQUEST FOR THE INDICATON” label (Insta

English 17• If the check operation was not performed at first istallation, the malfunc-tion code “U3” will be displayed in the remote controller. Perf

1645 Wallace Drive, Suite 110Carrollton, TX [email protected] EM09A062A(1002)FS

figure 18figure 21figure 16 figure 17-2figure 19figure 20 figure 22figure 13 figure 14figure 17-1figure 15A34152B1212345611234347829651432123 TO IN/D

figure 30figure 24figure 27 figure 29figure 31figure 25figure 23figure 26figure 283245 728Part A Part B Part C11910CAB16121314 14123456789101314151112

English 1REYQ72PAYDREYQ96PAYDREYQ120PAYDRE YQ7 2PAT JRE YQ9 6PAT JREYQ120PATJVRVIII System air conditioner Installation manualCONTENTS1. FIRST OF ALL.

2 English• Make sure that all wiring is secured, that specified wires are used, and that no external forces act on the terminal connec-tions or wires.

English 3[DESIGN PRESSURE]Since design pressure is 478 psi, the wall thickness of pipes should be more carefully selected in accordance with the relev

4 English• If the height is exceeded the above, calculate h1 and h2 shown in the figure below, and add h2/2 to the service space of front side and h1/

English 5• Outside unit multi connection piping kit and refrigerant branching kit (sold separately) are needed for connection of piping between out-si