14
COMMISSIONING AND MAINTENANCE
20 INTERVENTIONS ON THE
HYDRAULIC SYSTEM
20 1 Draining the system
- Connect a rubber hose to taps (A) and (B)
- Connect the opposite end to a vessel
- Open system drain taps and allow full drainage
- Close system drain taps and remove the rubber hose
- The exhausted heat transfer fluid must be disposed
of according to the prevailing regulations, pursuant
to the instructions provided in the safety data sheet
supplied with the glycol.
20 2 Disassembling the circulator
b
Remove the circulator when system has cooled down.
Before removing circulator (C):
- Cut power off to the solar station and to the connect-
ed integration system, by setting the system's main
switch and the device's main switch to OFF
- Disconnect circulator power by removing connectors
(D) and (E)
- Move away any wiring and electric devices below to
protect them against any leakage of heat transfer fluid
- Close valves (VR) and (VM) by turning handle clock-
wise by 90°
- Open taps (A) and (B) and drain the solar circuit
- Loosen ring nuts (H1) and (H2) and remove circulator
(C).
C
H2
H1
B
VM
VR
E
D
A
Reverse the above steps to fit the new pump.
Fill the solar circuit as described in paragraph "System fill-
ing cock".
21 RECYCLING AND DISPOSAL
The device is primarily composed of:
Material
Component
steel
structural work
metal materials
tubes, circulator
ABS (acrylonitrile-butadi-
ene-styrene)
solar regulator casing,
covering and covers
EPP (polypropylene foam)
solar station insulation
PU (polyurethane)
boiler insulation
synthetic rubber
pipe insulation
electrical and electronic
components
cables and wiring, solar
regulator, circulator
At the end of the device's useful life, these components
must be separated and disposed of according to current
regulations in the country of installation.
Commissioning and maintenance
