50 g of R410A
per additional metre
Length of the
connections
15 m
20 m max.
Additional volume
added
none
250 g
The volumes on the outdoor units correspond to
maximum distances between the outdoor unit and
Hydraulic module defined in
distances are greater, an additional volume of R410A
is required. The additional volume added depends, for
each type of appliance, on the distance between the
outdoor unit and the hydraulic module The additional
volume added of R410A must only be added by a
qualified specialist.
• Example of additional volume added:
An outdoor unit at a distance of 17 m from the hydraulic
requires an additional charge of:
Additional volume =
(17 – 15) x 50 = 100 g
The volume must be added after evacuation and
before connecting the gas to the Hydraulic module,
as follows:
-
Disconnect the vacuum pump (yellow hose) and
connect in place a bottle place of R410A
in the
position of liquid drawing
-
Open the tap of the bottle.
-
Drain the yellow flexible hose by loosening it slightly
on the manifold side.
-
Place the bottle on precision scales with a minimum of
10g. Note the weight.
-
Carefully open the blue tap slightly and monitor the
value displayed on the scales.
-
As soon as the value displayed has dropped by the
value of the calculated additional charge, close the
bottle and disconnect it.
-
Sharply disconnect the flexible hose from the appliance.
-
Add the gas to the hydraulic module.
"
Warning!
• Only use R410A!
• Only use tools adapted to R410A (set of pressure
gauges).
• Always add charge in liquid phase.
• Do not exceed the maximum length or difference in height.
2 .8 .4
Collecting the refrigerating fluid
in the outdoor unit
"
Only for the 3 phase models
Carry out the following procedures to collect the
refrigerating fluid.
1
Place the ON/OFF switch in the position
0
(item
27
,
2
Remove the front panel of the hydraulic module.
Place the
DIP SW1
of the interface board to
ON
3
Turn the ON/OFF switch to position
1
(the green and red LED sstart to flash;
1s lit / 1s extinguished).
4
The outdoor unit starts in the cold mode for
approximately 3 minutes after it is switched on.
Close the liquid valve on the outdoor unit 1 minute
after the outdoor unit is started.
5
Close the gas valve on the outdoor unit 1 to 2
minutes after closing the liquid valve, while the
outdoor unit continues to turn.
6
Disconnect the electrical power supply.
Remarks:
-
Check that the ON/OFF switch is in the position
0
before pressing
DIP SW1
-
When the heat pump is operating, the collection cannot
be activated even if the
DIP SW 1
is at
ON
-Do not forget to place the
DIP SW 1
to OFF once
collection is complete.
-
If the collection operation fails, try the
procedure again by turning off the machine and
opening the "gas" and "liquid" valves. Then
2 to 3 minutes repeat the collection.
figure 23 - Gaz bottle R410A
R410A
Liquid
Gas
1 2 3 4
DIP SW
Interface board
LED2
(green)
LED1
(red)
OFF ON
figure 24 - Position of the DIP switches and the LEDs on
hydraulic module interface board
Installation and operating manual
"
1605 - EN
"
- 23 -
alfea hybrid duo heat pump oil low NOx CH
