Installation manual

Split Systems
17
Piping Requirements Allowable Length Details
Maximum
allowable
length
Between outdoor and BP units
Total piping
length
Piping length between outdoor and BP units ≤ 180 ft (55 m) -
[Example] a+b+c+d+e ≤ 180 ft
Between BP and indoor units
Total piping
length
Piping length between BP and indoor units: 262 ft (80 m) -
[Example] f+g+h+i+j+k+l ≤ 262ft
Between BP and indoor unit
1 room
length
Piping length between BP and indoor unit ≤ 49 ft (15 m) -
[Example] f, g, h, i, j, k, l ≤ 49 ft
Allowable
height
Between outdoor and indoor units
Difference in
height
Difference in height between outdoor and indoor units (H1) ≤ 98 ft (30 m)
Between outdoor and BP units Difference in height between outdoor and BP units (H2) ≤ 98 ft (30 m)
Between BP and BP units Difference in height between BP and BP units (H3) ≤ 49 ft (15 m)
Between indoor and indoor units Difference in height between indoor and indoor units (H4) ≤ 49 ft (15 m)
Minimum allowable length Piping length
Pipe length between outdoor unit and first refrigerant branch kit
(refnet joint) ≥ 16.4 ft
[Example] a ≥ 16.4 ft
Allowable length after the REFNET branch
Piping length from first refrigerant branch kit
(REFNET joint) to indoor unit ≤ 131 ft (40 m)
[Example] unit 6: b+c+k ≤ 131 ft [Example] unit 5: b+e+j ≤ 131 ft
[Example] unit 3: d+h ≤ 131 ft
Additional refrigerant calculation
R=
Total length (ft / m)
0.036 lb./ft
(0.054 kg/m)
Total length (ft / m)
of liquid piping size at
x
+
of liquid piping size at
Ø 3/8 inch (Ø 9.5mm) Ø 1/4 inch (Ø 6.4mm)
Superiorflexibilitywithmultizone
customization
Keyfeaturesinclude:
• Zonecustomizationwiththeabilitytoconnectfrom
2upto8indoorunitstoasingleoutdoorunit.
• Increasedenergysavingswithtechnologically
advancedcomponentsandinvertertechnology.
• Superiorflexibilitywiththechoiceofthreeindoor
unittypesforidealcomfortdesignedforanydécor.
• Individualzone
controlwithstandardwireless
controls,optionalwiredcontrols,orthe
DaikinENViintelligentthermostat.
RMXS
Outdoor Units – RMXS48LVJU
Model Name
RMXS48LVJU
Nominal Capacity (Cooling / Heating) Btu/h 48,000 / 54,000
SEER / HSPF
Non Ducted 18.8 / 11.3
Mixed 16.5 / 10.5
Ducted 14.1 / 9.6
EER / COP
Non Ducted 10.3 / 3.0
Mixed 9.8 / 2.9
Ducted 9.3 / 2.7
Power Supply 208/230V - 1Ø - 60Hz
Minimum Circuit Amps A 27.0
Maximum Overcurrent Protection A 30.0
Sound Pressure - (Cooling/Heating) dB(A) 56 / 58
Connection Ratio (Max Capacity for BPMKS Boxes)
50 - 130%
Number of Connectable Indoor Units 2 to 8
Number of Connectable BP Units 1 to 3
Total System Piping Length ft. (m) 440 (135)
Piping Connection Kit KHRP26A22T
Operating Range – (Cooling/Heating) °F DB 23 – 115/5 - 75
Dimensions (H x W x D) in.
52-15/16 x 35-7/16 x 12-5/8
Net Weight lbs. 283.0
BP Units
Model Name BPMKS048A2U BPMKS049A3U
Power Supply Single phase 60Hz 208/230V
Power Consumption W 10 10
Running Current A 0.05 0.05
Sound Pressure - (Cooling/Heating) dB(A) 32/32 32/32
Number of Connectable Indoor Units 1 to 2
1 to 3
Min. Connection Combination 7,000 7,000
Max. Connection Combination 48,000
62,000
Piping
Connections
(O.D.)
Liquid
Outdoor Unit Side
in.
Ø 1/4 x 2 Ø 1/4 x 3
Indoor Unit Side
in.
Ø 1/4 x 2 Ø 1/4 x 3
Gas
Outdoor Unit Side
in.
Ø 5/8 x 2 Ø 5/8 x 3
Indoor Unit Side
in.
Ø 5/8 x 2 Ø 5/8 x 3
Dimensions (H x W x D)
in.
7-1/16 x 11-9/16 x 13-3/4
Net Weight
lbs.
18.0 20.0
Nominal Conditions:
Cooling Mode
Indoor: 80 °F DB / 67 °F WB
Outdoor: 95 °F DB
Pipe Length: 25 ft.
Level Difference: 0 ft.
Heating Mode
Indoor: 70 °F DB
Outdoor: 47 °F DB / 43 °F WB
Pipe Length: 25 ft.
Level Difference: 0 ft.
Note:
Specifications are subject to change
without notice
LongerRefrigerantPiping
Longerrefrigerantpipingcapabilitiesoffersmuchmore
flexibilityinthechoiceofinstallationpositionsforthe
indoorunits,andgreatlysimplifiessystemlayout.
BPMKS
BranchPortUnit(BPMKS)
TheBranchPort(BP)unitvariestherefrigerantvolumetomeet
thecoolingorheatingrequirements.It’seasytodisassemble
andmakesrepairsandrecyclingsimple.Choosefrom2‐zone
or3‐zoneBPunitstomatchthesystemselectiontoindividual
requirements.