Primary And Secondary Circuit Expansion; Lightning Protection; Start Up; System Limits - Orkli OKSOL-150 Manuel D'installation

Orkli S. Coop. supplies a 2.5 bar pressure reducing valve with a non-return valve, which should be fitted so that optimal
system functioning will prolong the product's working life. If the system is installed at a height, the pressure can be increased
by 0.5 bar for each 5 m of additional height.
Valves and stop cocks
Similarly stop cocks shall be provided at the entrance and exit of the collector to facilitate maintenance. The installer will
place a bleed valve between the inlet cut-off valve and the collector.
For proper drainage in the case of primary discharge of the circuit there will be a drain route as illustrated in the description
of the system.
The anti-return valve that Orkli S. Coop. supplies with the system as shown in the 'System Description." drawing should be
fitted.
If necessary, the water pipe network will have a filter.
In order to avoid overheating at the consumption points a mixer should be installed at the outlet of the collector.
Evacuation lines
Place the primary and secondary evacuation pipes independently. The primary evacuation (propylene glycol) will drain
into a container out of the reach of children or animals. In case of overheating in the tank (95 º C) the safety valve operates
(see user manual pt. 7) Therefore the evacuation line of the secondary must be properly channelled directly to the nearest
drain keep it away from all danger
of burning people and animals. The pipeline will be at least the diameter of the valve.
To ensure that the drain line of tank is free of debris and the cover open it must be removed and the secondary valve
released to drain some water. Once the operation has been carried out close the valve and fit the cap.
Purge lines
Safety valves will be used to purge.
12. PRIMARY AND SECONDARY CIRCUIT EXPANSION TANK INSTALLATION
PRIMARY: A single absorber given its design will cater for
1.2 litres of expansion. To prevent the loss of propylene
glycol during installation, either COVER THE SYSTEM with
a suitable tarpaulin (available upon order) or FILL THE
WATER TANK.
SECONDARY: Installation of closed expansion tank is
optional.
13.

LIGHTNING PROTECTION

We recommend that a copper cable with a diameter of at least 16 mm
system of the building.

START UP

14.

SYSTEM LIMITS

Operating limits are set by the safety valves, which always act passively. Heat transfer fluid characteristics enable an
operating range of -35 ºC / + 140 ºC [at 3 bar].
• Max. P. solar circuit: 3 bar
• Max. P. DHW circuit: 4.5 bar
• Max. Temp DHW circuit: 95ºC
26
Primary draining outlet
Secondary draining
outlet
OKSOL-150: 30-40 structure
2
should be used to connect to the lightning arrest
Secondary inlet