Device Cleaning And Maintenance; Interventions On The Hydraulic System; Recycling And Disposal - Riello 20156553 Manual

15 DEVICE CLEANING AND MAINTENANCE

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Service the system at least once a year and carry out the
inspections specified in the relevant manual.
The following operations must be exclusively performed by
Technical Assistance Centre.
15.1 Checking the seals
After commissioning, check hydraulic fitting sealing. Make
sure there is no leakage close to electric components to avoid
short-circuits.
15.2 External cleaning
If dust accumulates on the insulation, clean it with a dry cloth.
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Do not use abrasive products, petrol or triethylene.

16 INTERVENTIONS ON THE HYDRAULIC SYSTEM

16.1 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.
16.2 Disassembling the circulator
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Remove the circulator when system has cooled down.
Before removing circulator (C):
− Switch off the electrical supply to the station and the
combined integration system, by setting the system'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 the flow regulator (V)
− Close the valve (VR) by turning the handle 90° clockwise
− Loosen ring nuts (H1) and (H2) and remove circulator (C).
VM
Reverse the above steps to fit the new pump.

17 RECYCLING AND DISPOSAL

The device is primarily composed of:
Material
metal materials
EPP (polypropylene foam)
electrical and electronic
components
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.
21 21
VR
E
Component
tubes, circulator
insulation
cables and wiring, solar
regulator, circulator
H1
C
D
H2
V