Daikin RXQ18P7W1BA Installation Manual download pdf (Page 12)

Installation manual

RX(Y)Q5-10-12P7W1B + RXQ8P7W1B + RXYQ8P8W1B +

RXYHQ12P8W1B + RX(Y)Q14~18P7W1BA

VRVIII System air conditioner

4PW48461-1

3 One outdoor unit installed: In case of RX(Y)Q5~18 +

RXYHQ12

(See ﬁgure 8)

■ Front connection:

Remove the stop valve cover to connect.

■ Bottom connection:

Remove the knock holes on the bottom frame and route the

piping under the bottom frame.

■ Processing the gas side accessory pipe (2)

Only in case of connecting at lateral side, cut the gas side

accessory pipe (2) as shown in ﬁgure 11.

4 Outdoor units installed in a multiple outdoor unit system:

RXYQ20~54 + RXYHQ16~36

■ Front connection:

Remove the stop valve cover to connect. (See ﬁgure 8)

■ Bottom connection:

Remove the knock holes on the bottom frame and route the

piping under the bottom frame. (See ﬁgure 8)

4.1 Precautions when connecting piping between outdoor

units (multiple outdoor unit system)

■ The 5 Hp unit type can not be used as an independent unit in

a multi system.

■ To connect the piping between outdoor units, an optional

multi connection piping kit BHFQ22P1007/1517 is always

required. When installing the piping, follow the instructions in

the installation manual that comes with the kit.

■ Only proceed with piping work after considering the

limitations on installing listed here and in the chapter

"6.4. Connecting the refrigerant piping" on page 6, always

referring to the installation manual delivered with the kit.

4.2 Possible installation patterns and conﬁgurations

■ The piping between the outdoor units must be routed level or

slightly upward to avoid the risk of oil retention into the piping

side.

Pattern 1

Pattern 2

Prohibited patterns: change to pattern 1 or 2.

■ To avoid the risk of oil retention to the outmost outdoor unit,

always connect the stop valve and the piping between

outdoor units as shown in the 4 correct possibilities of the

ﬁgure below.

Prohibited patterns: change to pattern 1 or 2.

■ Be sure to use the supplied accessory pipes

when carrying out piping work in the ﬁeld.

■ Be sure that the ﬁeld installed piping does not

touch other pipes, the bottom panel or side

panel. Especially for the bottom and side

connection, be sure to protect the piping with

suitable insulation, to prevent it from coming into

contact with the casing.

A Front connection

Remove the stop valve cover to connect.

B Bottom connection:

Remove the knock holes on the bottom frame and route the piping

under the bottom frame

1 Gas pipe stop valve

2 Liquid pipe stop valve

3 Service port for adding refrigerant

4 Gas side accessory pipe (1)

5 Gas side accessory pipe (2)

6 Liquid side accessory pipe (1)

7 Liquid side accessory pipe (2)

8 Brazing

9 Gas side piping (ﬁeld supply)

10 Liquid side piping (ﬁeld supply)

11 Punch the knockout holes (use a hammer)

1 Gas side accessory pipe

2 Cutting location

3 Gas side piping (ﬁeld supply)

4 Base

Model A B C D

RX(Y)Q5

(mm)

166 16 199 246

RX(Y)Q8

(mm)

156 17 188 247

RX(Y)Q10

(mm)

156 23 192 247

RX(Y)Q12

(mm)

150 29 192 247

RX(Y)Q14~18 +

RXYHQ12

(mm)

150 29 192 251

NOTE

■ When connecting the piping on site, be sure to

use the accessory piping.

■ Make sure the onsite piping does not come into

contact with other piping, the bottom frame or side

panels of the unit.

1 To indoor unit

2 Piping between outdoor units

2 2

1 To indoor unit

2 Oil collects to the outmost outdoor unit.

1 2 ... 7 8 9 10 11 12 13 14 15 16 17 ... 37 38

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Daikin RXQ18P7W1BA Installation Manual Page 12

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