Loading Of Additional Refrigerant; Hydraulic Connections - Olimpia splendid SHERPA AQUADUE S2 BIG Instrucciones Para La Instalación, Uso Y Mantenimiento

h. Use a 4 mm hexagonal wrench to completely open the stem of the liquid valve.
i. Use a 5 mm hexagonal wrench to completely open the stem of the gas valve.
l. Remove the load flexible pipe connected to the service connection of the gas pipe.
m. Reposition the cap of the service connection of the gas pipe and fix it with a fork or normal wrench.
n. Reposition the caps of the service valves stems, both of the gas and liquid, then secure them.
Figure 13:
26. Valve stem
27. Valve stem cover
28. Loading hole
29. Main valve

3.1.2 - Loading of additional refrigerant

• If the length of the pipes is higher than 15 m, top up the refrigerant as indicated in the table in paragraph
"REFRIGERANT CONNECTIONS".
• Indicate the data of the external unit load (1), of the additional refrigerant quantity (2) and the total load
of the system (1+2) on the supplied label (fig.15).
Figure 16:
R1. Manometer unit
R2. Possible vacuum gauge
R3. Tap of the tank liquid
R4. Gas tank R410A

3.2 - HYDRAULIC CONNECTIONS

• The choice and installation of the components is delegated, due to compe-
tence, to the installer which will have to work according to good practice
regulations and the Law in force.
• Before connecting the pipes, make sure that they do not contain rocks,
sand, rust, dregs or, in any case, foreign bodies which may damage the
system.
• It is appropriate to carry out a by-pass in the system in order to be able to
perform washing of the plate exchanger without disconnecting the appli-
ance. The connection pipes must be supported so that they do not weigh
on the appliance with their weight.
The hydraulic couplings are positioned in the upper part of the unit.
Figure 17-17a:
C1. Conditioning circuit water delivery pipe (1")
C2. Domestic hot water tank water delivery pipe (3/4")
C3. Water return pipe (3/4")
C4. Domestic hot water tank water return pipe (1")
C5.-C6. Refrigerant pipes connections (3/8"G - 5/8"G)
Figure 14:
30. Manometer unit
31. Possible vacuum
gauge
32. Vacuum pump
33. Tap of the flexible pipe
(open)
34. Service connection
(closed)
35. Gas pipe
36. Liquid pipe
37. External unit
R5. Service connection (closed)
R6. Gas pipe
R7. Liquid pipe
R8. External unit
EN - 13
AQUADUE BIG