REMKO HTS 90 ALU - Manual (Page 50)

9 Refrigeration connection
9.1 Connecting the
refrigerant piping
n To install the refrigerant piping, you first need
to remove the aluminium trim panels on the
outdoor module (see Fig. 30). Unfasten the
four M6 screws from the lower area of the trim
panel (1) and carefully remove the trim panel
by lifting it upwards (2). Ensure that you do not
damage the heat exchanger and the fan.
n The outdoor module and the indoor module are
connected together by two copper lines
(copper tubes in refrigerator quality) with
dimensions of 3/8" = 9,52 mm and 5/8" = 15,88
mm (REMKO accessories).
n When bending the refrigerant piping, pay atten-
tion to the bending radii to prevent bending of
the tubes. Never bend a pipe twice in the same
place. Doing so can make it brittle or cause
cracks.
n Assure suitable fastening and insulation when
laying the refrigerant pipes.
n The copper pipes must be flared and cleaned
using a plastic fabric to make the connections
to the modules.
n The connections must be created using hard
solder applied in an inert gas atmosphere
(nitrogen).
n When connecting up two outdoor modules, the
refrigerant piping must be cut to the same
length.
Max. length difference of 2 m is not to exceed.
2
1
2
Fig. 30: Disassembly of the aluminium trim panel
Fig. 31: Refrigerant connection on the outdoor
module
NOTICE!
Depending on the air humidity in the interior
there is the possibility that the dew point is
exceeded in the insulation.
– We recommend the pipes with an addi-
tional vapor diffusion densities to provide
insulation.
REMKO HTS
50