53
Hy
dr
aulic c
onnec
tions
ARIANE
X
T
PL
US
HYDRAULIC FITTINGS
Internal unit 1 Zone
• Connect the external unit to the internal unit 1 Zone where indicated from the points A and B shown in the fi gure. Attention to the direction of
insertion.
• Connect the heating system to the internal unit 1 Zone where indicated from the points C and D in the fi gure.
• Connect the pipes to fi ll the installation.
• Connect the safety valve and the discharge valve of the internal unit with the provided silicone pipe.
• Connect the discharge valve of the external unit with rubber hoses, avoiding that the temperature sensors will be damaged during the operation.
• Connect an Exogel kit (optional) in order to preserve the integrity of the external unit in the event of electric shock due to various causes (eg frost)
A
B
C D E F
IN
OUT
Kit Barrette (optionl)
MGP Internal Unit
Return Zone 1
DHW Return
Flow Zone 1
DHW Flow
Filters and valves kit (optional)
Flexible pipes kit (optional)
Discharge of
safety valve
3 bar
Antivibration
kit
Condensation drain
Kit Anti-freeze
(optional)
Discharge of safety valve 3 bar
Filter
CHECKS
Before making the water circuit connections, check that:
• the system has been cleaned
• there are no impurities in the circuit water
• compatible components are used (do not connect copper and steel to each other)
• the system has been hooked up via the water circuit
• the water is never harder than 20°F or softer than 12°F, and that its pH is 6.6 to 8.5. If this is not the case, install water treatment to prevent
incrustations and corrosion in the system.
• the water circuit pressure never exceeds 5 bar, otherwise install a pressure reducer at the system’s intake
• an anti-freeze kit is installed, if the system is being used in an area prone to freezing temperatures
• a disconnector with cock is installed between the system and the domestic water circuit (if present)
• the supplied expansion vessel is large enough to handle the water in the system
