Carrier p3 series Owners And Installation Manual

Carrier p3 series Owners And Installation Manual Manual pdf 29 page image

a. Remove the indoor pipe flare nut. ( Check that there is no debris inside. )b. Align the center of the flare surface, and tighten the indoor pipe union and connection pipeflare nut with a torque wrench or double-ended wrench. ( Figure. 14 )While aligning the center of the flare surface, tighten the nut by hand, hold the union side with awrench and tighten the nut according to the specified tightening torque with a torque wrench.Torque wrench ordouble-ended wrenchOutdoor sideIndoor side Figure 14Pay careful attention to the following points when installing the refrigerant pipes.• Hold the pipe with one wrench while tightening the connections with a torquewrench or double-ended wrench.Be careful not to damage the flare nut threads.• If the tightening torque is insufficient, gas will leak from the connection.• If it is too strong, the flare will be damaged.Tighten the nut with the torque shown in Table 1.• Do not bend the pipe more than three times at one place.• When extending the rolled pipe, straighten the pipe by unwinding as shown in Figure 13. Figure 13• Repeat the procedure for flaring the tube to connect to the outdoor unit.• Tighten the flare nut of the connection pipe at the outdoor unit valve. ( Figure. 15 )271234567890123456789012345678901212345678901234567890123456789012123456781234567890123456789012345678901212345678901234567890123456789012123456781234567890123456789012345678901212345678901234567890123456789012123456781234567890123456789012345678901212345678901234567890123456789012123456781234567890123456789012345678901212345678901234567890123456789012123456781) Connecting Pipe to the Indoor Unit12345678901234567890123456789012123456789012345678901234567890121234567890123456123456789012345678901234567890121234567890123456789012345678901212345678901234561234567890123456789012345678901212345678901234567890123456789012123456789012345612345678901234567890123456789012123456789012345678901234567890121234567890123456123456789012345678901234567890121234567890123456789012345678901212345678901234562) Connecting the Interconnecting Pipe to the Outdoor Unit ValveFlare nut Tightening torque(kgf-cm)6.35mm (1/4”) 150 ~ 20012.7mm (1/2”) 500 ~ 55015.88mm (5/8”) 700 ~ 760Table 1Figure 15Interconnectingpipework(Gas pipe)Three way valve(Liquid pipe)Two way valveCONNECTING THE PIPING