PUMY-SP112YKMD User Manual

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2. Installationlocation

2.1. Refrigerantpipe

Refer to Fig. 4-1, 4-2.

2.2. Choosingtheoutdoorunitinstallationlocation

• Avoidlocationsexposedtodirectsunlightorothersourcesofheat.

• Selectalocationfromwhichnoiseemittedbytheunitwillnotinconvenienceneigh-

bors.

• Selectalocationpermittingeasywiringandpipeaccesstothepowersourceand

indoor unit.

• Avoidlocationswherecombustiblegasesmayleak,beproduced,ow,oraccumu-

late.

• Notethatwatermaydrainfromtheunitduringoperation.

• Selectalevellocationthatcanbeartheweightandvibrationoftheunit.

• Avoidlocationswheretheunitcanbecoveredbysnow.Inareaswhereheavysnow

fall is anticipated, special precautions such as raising the installation location or

installing a hood on the air intake must be taken to prevent the snow from block-

ingtheairintakeorblowingdirectlyagainstit.Thiscanreducetheairowanda

malfunction may result.

• Avoidlocationsexposedtooil,steam,orsulfuricgas.

• Usethetransportationhandlesoftheoutdoorunittotransporttheunit.Iftheunit

iscarriedfromthebottom,handsorngersmaybepinched.

2.3. Outlinedimensions(Outdoorunit)(Fig.2-1)

Constraints on indoor unit installation

You should note that indoor units that can be connected to this outdoor unit are the

following models.

• Indoorunitswithmodelnumbers15-140canbeconnected.

When using Branch box, Indoor units with model numbers 22-100 can be connected.

Refer to the table 1 below for possible room, indoor unit combinations.

Verication

The rated capacity should be determined by observing the table below. The unit’s

quantities are limited as shown in the following table 2. For the next step, make

sure that the total rated capacity selected will stay in a range of 50% – 130% of the

outdoor unit capacity.

• PUMY-SP112 6.3–16.2kW

• PUMY-SP125 7.1–18.2kW

• PUMY-SP140 8.0–20.2kW

Table 1-1 City Multi indoor units

Indoor unit type

15 20 25 32 40 50 63 71 80 100 125 140

Rated capacity

(Cooling) (kW)

1.7 2.2 2.8 3.6 4.5 5.6 7.1 8.0 9.0 11.2 14.0 16.0

Table 1-2 M series, P series, S series

Indoor unit type

22 25 35 42 50 60 71 80 100

Rated capacity

(Cooling) (kW)

2.2 2.5 3.5 4.2 5.0 6.0 7.1 8.0 10.0

Table 2 Connectable indoor units quantities

Model Only system Mixed system

Only City Multi indoor units

(Connection without Branch box)

Only M series, P series,

S series indoor units

(Connection with Branch box)

One Branch box Two Branch box

Connection with

Branch box

City Multi indoor

units

Connection with

Branch box

City Multi indoor

units

PUMY-SP112 1-9 2-8 Max. 5 Max. 5 Max. 7 or 8*1 Max. 3 or 2*1

PUMY-SP125 1-10 2-8 Max. 5 Max. 5 Max. 8 Max. 3

PUMY-SP140 1-12 2-8 Max. 5 Max. 5 Max. 8 Max. 3

(mm)

Fig.2-1

370

1050

225

600

981

330+25

*1 When connecting 7 indoor units via branch box, connectable citymulti indoor units

are 3; connecting 8 indoor units via branch box, connectable citymulti indoor units

are 2.

Table 3 Connectable Branch box quantities

Model Branch box

PUMY-SP112/125/140 1-2

Combinations in which the total capacity of indoor units exceeds the capacity of the

outdoor unit will reduce the cooling capacity of each indoor unit below their rated

cooling capacity. Thus, combine indoor units with an outdoor unit within the outdoor

unit’s capacity, if possible.

RG79Y960H01.indb 4 2018/02/09 14:30:59

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User Manual - Page 4