14
COMMISSIONING AND MAINTENANCE
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
9
Remove the circulator when system has cooled down.
Before removing circulator (C):
− Cut power off to the solar station and to the connected
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 pro-
tect them against any leakage of heat transfer fluid
− Close valves (VR) and (VM) by turning handle clockwise by
90°
− Open taps (A) and (B) and drain the solar circuit
− Loosen ring nuts (H1) and (H2) and remove circulator (C).
20.3
Safety valve removal
9
Remove when system has cooled down.
Before removing the safety valve:
− Cut power off to the solar station and to the connected
integration system, by setting the system's main switch
and the device's main switch to OFF
− Empty the solar circuit as described in paragraph "Drain-
ing the system".
− Unscrew ring nut (G) and remove safety tube.
9
The safety valve is sealed with the safety tube and cannot be
removed. Remove it using a work bench.
Reverse the above steps to fit the new pump.
Fill the solar circuit as described in paragraph "System filling
cock".
A
B
H2
E
C
D
H1
G
VR
VM
Reverse the above steps to fit the new pump.
Fill the solar circuit as described in paragraph "System filling
cock".
21
RECYCLING AND DISPOSAL
The device is primarily composed of:
Material
Component
steel
structural work, panelling
metal materials
tubes, circulator
ABS (acrylonitrile-butadiene-
styrene)
solar regulator casing,
covering and covers
PU (polyurethane)
boiler insulation
glass wool
panelling 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
