Installation manual

INSTALLATION MANUAL AND USERS GUIDE
Multi Split Series – Ductless Split System Heatpump
04006020101 © Sedna Aire Europe 21 12/2012
11. INSTALLATION OF INDOOR CASSETTE
See separate manual for installation and user manuals
12. INSTALLATION OF OUTDOOR UNIT
Modify the outdoor unit and connect it to SolarCool panel:
Do this first ! See separate installation manual for SolarCool panel
Piping lengths and diameters
The piping lengths and altitudes between the outdoor and the indoor units are defined as:
Product CMO18/24 CMO28/36 CMO42
Number of indoor units 1-2 2-4 2-5
Total length (m) 25 70 80
Max. length for single indoor unit (m) 15 15 15
Max installation
altitude
Outdoor ↔ indoor unit 10 15 15
Indoor ↔ indoor unit 5 7,5 7,5
Following min. inner pipe diameters according to indoor units have to be used
Capacity of indoor unit Gas pipe Liquid pipe
< 3,5 kW Ø 9,52 mm - 3/8” Ø 6,35 mm - 1/4”
3,6 → 5,3 kW Ø 12,7 mm - 1/2” Ø 6,35 mm - 1/4”
5,4 → 7,5 kW Ø 15,9 mm - 5/8” Ø 9,52 mm - 3/8”
Outdoor ↔ Solarpanel Min. Ø 12 mm - 1/2” Min. Ø 12 mm - 1/2”
Connecting the pipes

The taper end of the connecting pipe must be in line with the corresponding
taper face of the valve joint. Tighten the nut of the connecting pipe and then use
spanner to tighten the nut
.
Hexagon nut Torque (Nm)
Ø 6,5 - (1/4”) 15 - 20
Ø 9,5 - (3/8”) 31 - 35
Ø 12,7 - (1/2”) 50 - 55
Ø 15,8 - (5/8”) 60 - 65
Ø 19,0 - (3/4”) 70 - 75
NOTE:
Connect the connecting pipe to the indoor unit first and then connect it to the outdoor unit. Pay attention to
the bending and Iayout when preparing the connecting pipe in order not to harm it. Do not screw the joint nut
too tightly, otherwise leakage will be caused.
Each pipe shall be labeled indicting to which indoor system it belongs in order to allow easier maintenance
Insulate all pipes and joints to avoid condensate and to improve cooling/heating efficiency
Torque wrench
S
p
anner
Flare
nut
Join
t