Mitsubishi Electric PUHY-RP200YJM-A [14/34] Installation of unit

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8. Installation of unit

8.1. Installation

[Fig. 8.1.1] (P.3)

<A> Without detachable leg <B> With detachable leg

A M10 anchor bolt procured at the site. B Corner is not seated.

C Fixing bracket for the hole-in anchor bolt (3 locations to fix with screws).

D Detachable leg

• Fix unit tightly with bolts so that unit will not fall down due to earthquakes or

strong winds.

• Use concrete or an angle bracket as the foundation of unit.

• Vibration may be transmitted to the installation section and noise and vibration

may be generated from the floor and walls, depending on the installation con-

ditions. Therefore, provide ample vibrationproofing (cushion pads, cushion

frame, etc.).

• Build the foundation in such way that the corner of the installation leg is se-

curely supported as shown in the figure. (Fig. 8.1.1)

When using a rubber isolating cushion, please ensure it is large enough to

cover the entire width of each of the unit's legs. If the corners are not firmly

seated, the installation feet may be bent.

• The projecting length of the anchor bolt should be less than 30 mm.

• Hole-in anchor bolts are not compatible with this product. However, if fixing

brackets are mounted on the 4 locations of the unit attachment part, hole-in

anchor bolts can be used.

[Fig. 8.1.2]

A Screws

• The detachable leg can be removed at the site.

• Detaching the detachable leg

Loosen the three screws to detach the detachable leg (Two each in the front

and back).

If the base leg finish is damaged when detaching, be sure to repair at the site.

Warning:

• Be sure to install unit in a place strong enough to withstand its weight.

Any lack of strength may cause unit to fall down, resulting in a personal

injury.

•Have installation work in order to protect against strong winds and

earthquakes.

Any installation deficiency may cause unit to fall down, resulting in a

personal injury.

When building the foundation, give full attention to the floor strength, drain water

disposal <during operation, drain water flows out of the unit>, and piping and wir-

ing routes.

Precautions when routing the pipes and wires below the unit (Without

detachable leg)

When routing the pipes and wires below the unit, be sure that the foundation and

base work do not block the base through-holes. Also make sure the foundation is

at least 100 mm high so that the piping can pass under the unit.

9. Refrigerant piping installation

The pipe is connected via a terminal-branch type connection in which refrigerant

piping from the outdoor unit is branched at the terminal and is connected to each

of the indoor units.

The method of pipe connection is as follows: flare connection for the indoor units,

gas pipes and liquid pipes for outdoor units, brazed connection. Note that the branched

sections are brazed.

Warning:

Always use extreme care to prevent the refrigerant gas from leaking while

using fire or flame. If the refrigerant gas comes in to contact with a flame

from any source, such as a gas stove, it breaks down and generates a poi-

sonous gas which can cause gas poisoning. Never weld in an unventilated

room. Always conduct an inspection for gas leakage after installation of the

refrigerant piping has been completed.

Caution:

• Do not vent R410A into the atmosphere.

• R410A is a Fluorinated Greenhouse gas, covered by the Kyoto Protocol

with a Global Warming Potential (GWP) = 1975.

9.1. Caution

This unit uses refrigerant R410A. Follow the local regulations on materials and

pipe thickness when selecting pipes. (Refer to the table on the right.)

1 Use the following materials for refrigeration piping.

• Material: Use copper alloy seamless pipes made of phosphorus deoxi-

dized copper. Ensure the inner and outer surfaces of the pipes are clean

and free from hazardous sulfur, oxide, dusts, shaving particles, oils, and

moisture (contamination).

• Size: Refer to item 9.2. for detailed information on refrigerant piping sys-

tem.

2 Commercially available piping often contains dust and other materials. Always

blow it clean with a dry inert gas.

3 Use care to prevent dust, water or other contaminants from entering the piping

during installation.

4 Reduce the number of bending portions as much as possible, and make bend-

ing radii as big as possible.

5 For indoor and outdoor branching, be sure to use the following twinning pipe

sets (sold separately).

6 Use a fitting if a specified refrigerant pipe has a different diameter from that of

a branching pipe.

7 Always observe the restrictions on the refrigerant piping (such as rated length,

height difference, and piping diameter) to prevent equipment failure or a de-

cline in heating/cooling performance.

Lower stream unit model

Less than 200 in total

CMY-Y102S-G2

Lower stream unit model

More than 201 and less than

400 in total

CMY-Y102L-G2

Lower stream unit model

More than 401 and less than

650 in total

CMY-Y202-G2

Lower stream unit model

More than 651 in total

CMY-Y302-G2

10 branching

CMY-Y1010-G

8 branching

CMY-Y108-G

4 branching

CMY-Y104-G

Indoor twinning pipe set model**

Line branch Header branch

Total outdoor model

RP400 ~ RP650

CMY-RP100VBK

Total outdoor model

RP700 ~ RP900

CMY-RP200VBK

Outdoor twinning kit model

** When using existing pipes, do not use the indoor twinning pipe set.

10 branching

CMY-Y1010-G

WT05910X01_en_e.p65 10.5.18, 15:4514

Mitsubishi Electric PUHY-RP200YJM-A [14/34] Installation of unit

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