Outdoor Unit Installation
Important information regarding the refrigerant used
This product contains fluorinated greenhouse gases covered by
the Kyoto Protocol. Do not vent gases into the atmosphere.
Please fill in with indelible ink,
the factory refrigerant charge of the product,
the additional refrigerant amount charged in the field and
the total refrigerant charge
1 + 2
on the refrigerant charge label supplied with the product.
National implementation of EU regulation on certain fluorinated greenhouse gases may require to provide the appropriate official
national language on the unit. Therefor an additional multilingual fluorinated greenhouse gases label is supplied with the unit.
Sticking instructions are illustrated on the backside of that label.
Refrigerant piping work.
7-1 Cautions on pipe handling.
1)Protect the open end of the pipe against dust and moisture.
2)All pipe bends should be as gentle as possible. Use a pipe bender
7-2 Selection of copper and heat insulation materials.
When using commercial copper pipes and fittings, observe the following:
1) Insulation material: Polyethylene foam
Heat transfer rate: 0.041 to 0.052W/mK (0.035 to 0.045kcal/mh°C)
Refrigerant gas pipe's surface temperature reaches 110°C max.
Choose heat insulation materials that will withstand this temperature.
2) Be sure to insulate both the gas and liquid piping and to provide insulation dimensions as below.
Seal the edge of the
insulation if there is a
possibility that the
condensation from the
shut-off valve might
drip onto the indoor
unit through the gap
between the insulation
and the pipe.
Thickness 0.8mm (C1220T-O)
3) Use separate thermal insulation pipes for gas and liquid refrigerant pipes.
GWP = global warming potential
Minimum bend radius
30mm or more
The filled out label must be adhered in the
proximity of the product charging port (e.g.
onto the inside of the stop valve cover).
Piping bundle diagram
Liquid pipe insulation
Gas pipe thermal
Liquid pipe thermal
Thickness 10mm Min.
1 factory refrigerant charge of the
see unit name plate
2 additional refrigerant amount
charged in the field
3 total refrigerant charge
4 Contains fluorinated greenhouse
gases covered by the Kyoto
5 outdoor unit
6 refrigerant cylinder and manifold
Be sure to
place a cap.
If no flare cap is
available, cover the
flare mouth with
tape to keep dirt or