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Installation manual

5

RZQ71~12 RZQ100~140B8W1B

Split System air conditioners

4PW23691-1A

2.

In case of installing multiple units (2 units or more) in lateral
connection per row.

Relation of dimensions of H, A and L are shown in the table below.

R

EFRIGERANT

 

PIPE

 

SIZE

 

AND

 

ALLOWABLE

 

PIPE

 

LENGTH

Selection of piping material

Construction material: phosphoric acid deoxidised seamless
copper for refrigerant.

Temper grade: use piping with temper grade in function of the
pipe diameter as listed in table below.

The pipe thickness of the refrigerant piping should comply with
relevant local and national regulations. The minimal pipe
thickness for R410A piping must be in accordance with the table
below.

O=Annealed
1/2H=Half hard

Refrigerant pipe size

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.

Pipe between first branch and second branch (L2+L3) (only for
double twin).

Pipe between branch and indoor units (L2~L3 for twin, L2~L4 for
triple and L4~L7 for double twin).
These pipe sizes must have the same size as the connected
indoor units pipe sizes. Branch: see marking '

' on figures 

3

4

and 

5

.

Selection of branch pipe

L

A

L

H

0<L

1/2H

150 (250)

1/2H<L

200 (300)

H<L

Installation impossible

All field piping must be installed by a licensed refrigeration
technician and must comply with relevant local and
national regulations.

To persons in charge of piping work:

Be sure to open the shut-off valve after piping
installing and vacuming is complete. (Running the
system with the valve closed may break the
compressor.)

It is forbidden to discharge refrigerant into the
atmosphere. Collect the refrigerant in accordance
with the freon collection and destruction law.

Do not use flux when brazing the refrigerant piping.
For brazing, use phosphor copper brazing filler metal
(BCuP) which does not require a flux.
(If a chlorine flux is used, the piping will corrode, and if
the flux contains fluoride, it will cause the coolant oil to
deteriorate, adversely affecting the coolant piping
system.

Pipe Ø

Temper grade 

of piping material

Minimal thickness t(mm)

6.4 / 9.5 / 12.7

O

0.80

15.9

O

1.00

19.1

1/2H

1000

(1500)

400 (600)

2000

(3000)

A

H

L

Refrigerant pipe size

(a)

(a) In case of twin, triple and double twin applications, the listed refrigerant pipe 

sizes relate to the main pipes only. (L1 = the pipes between the outdoor unit and 
the branch in figures 

3

~

5

).

Gas pipe

Model

Size-down

Standard size

Size-up

RZQ71

Ø12.7

Ø15.9

RZQ100~140

Ø19.1

Liquid pipe

Model

Size-down

Standard size

Size-up

RZQ71~140

Ø6.4

Ø9.5

Ø12.7

Liquid

Ø9.5

Gas

Ø15.9

NOTE

For new installations, use the standard pipe sizes.

When using existing pipes, size-up is allowed as
mentioned in the table above.
Size up is only allowed for pair combination (L1).
Additional restrictions towards allowable pipe
lenghts, as mentioned in the table 

"Allowable pipe

length" on page 6

, must be taken into account.

Not using the standard pipe size may result in
capacity decrease. The installer must
acknowledge this and judge this very carefully in
function of the complete installation.

Twin

KHRQ22M20TA

Triple

KHRQ250H

Double twin

KHRQ22M20TA (3x)

Summary of Contents for RZQ100B9V3B

Page 1: ...INSTALLATION MANUAL RZQ71B9V3B RZQ100B9V3B RZQ125B9V3B RZQ100B8W1B RZQ125B8W1B RZQ140B8W1B Split System air conditioners...

Page 2: ...9 7 6 6 8 3 3 1 3 2 4 5 A B A E B C D H H1 L1 H1 H2 L3 L1 L2 H1 H2 L4 L1 L3 L2 H1 H2 L7 L1 L6 L5 L4 L3 L2 A A B2 B2 B2 C C D1 D1 D1 D2 D2 D2 D2 D2 E E H H L1 L1 L1 L2 L2 L2 A A B1 B1 B1 B1 B1 B1 B2 B...

Page 3: ...ea s fie utilizate n conformitate cu instruc iunile noastre 19 skladni z naslednjimi standardi in drugimi normativi pod pogojem da se uporabljajo v skladu z na imi navodili 20 on vastavuses j rgmis t...

Page 4: ...ourself Improper installation may result in water leakage electric shocks or fire Perform installation work in accordance with this installation manual Improper installation may lead to water leakage...

Page 5: ...be according to national regulations Do not connect the earth wire to gas or water pipes lightning conductor or telephone earth wire Incomplete grounding may cause electric shocks Gas pipe Ignition o...

Page 6: ...ation due to rise of high pressure When a strong wind blows continuously on the face of the unit the fan can start rotating very fast until it breaks Refer to the figures for installation of this unit...

Page 7: ...pipe disposal If drain pipe disposal from the outdoor unit causes trouble for example if the drain water may splash on people provide the drain piping using a drain socket optional Make sure the drain...

Page 8: ...f piping work Be sure to open the shut off valve after piping installing and vacuming is complete Running the system with the valve closed may break the compressor It is forbidden to discharge refrige...

Page 9: ...y refrigerant gas leaks while working on the unit ventilate the room thoroughly right away Use R410A only when adding refrigerant Installation tools Make sure to use installation tools gauge manifold...

Page 10: ...If the indoor or outdoor units were disconnected from the piping for a long period of time water or dirt might have gotten into the piping If copper piping is corroded Flares should not be re used but...

Page 11: ...areful not to let the indoor and outdoor branch piping come into contact with the compressor terminal cover If the liquid side piping insulation might come into contact with it adjust the height as sh...

Page 12: ...sed before leak test or vacuuming Set up for vacuuming and leak test see figure 8 Procedure for leak test Leak test must satisfy EN378 2 1 Evacuate the pipes and check vacuum 1 No pressure increase fo...

Page 13: ...kg Example 1 1 G1 L1 35 m G2 L2 L3 7 5 12 2 Over 30 m a G1 30 5 m 9 5 R1 0 5 kg b G2 12 m 6 4 R2 0 6 kg 3 Refrigerant charge amount R R1 R2 0 5 0 6 1 1 kg Example 2 1 G1 L1 5 m G2 L2 L3 L4 17 17 20 54...

Page 14: ...h clamping material as shown in the figure below so that it does not come in contact with the piping particulary on the high pressure side Make sure no external pressure is applied to the terminal con...

Page 15: ...overheating When connecting wires of the same gauge connect them according to the below figure Use the correct screwdriver to tighten the terminal screws Small screwdrivers can damage the screw head...

Page 16: ...bol all the time and the unit will switch to heating operation automatically after elapse of that time 2 In case you cannot operate the unit in test run mode for any unusual reason refer to Failure di...

Page 17: ...he product in case of an abnormality when the product is started up When the reversed phase protection circuit forced the unit to stop check if all phases are existing If this is the case shut off the...

Page 18: ...ld supply R1 R2 Resistor R1T Thermistor air R2T Thermistor coil R3T Thermistor discharge pipe R4T Thermistor suction pipe R5T Thermistor power module RC Signal receiver circuit S1NPL Pressure sensor l...

Page 19: ...NOTES NOTES...

Page 20: ...Zandvoordestraat 300 B 8400 Oostende Belgium 4PW23691 1A...

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