Intended Use; Recommended Maintenance And Inspection Periods - Viessmann VITOSOL 200-FM SV2F Design Manual

Solar System Design Guide

Intended Use

The appliance is only intended to be installed and operated
in sealed pressurized systems with due attention paid to
these instructions.
DHW tanks are only designed to store and heat water
of potable water quality. Heating water buffer tanks are
only designed to hold fill water of potable water quality.
Only operate solar collectors with the heat transfer medium
approved by the manufacturer. Intended use assumes that
a fixed installation in conjunction with permissible, system-
specific components has been carried out.

Recommended Maintenance and Inspection Periods

The glazing (glass) of the collectors is clean
The valve on the automatic air vent at the collectors is closed
There are no fluid leaks from solar collector, system piping, tanks, pumps, etc
Circulating pumps are operational without excess noise
Flow meter is functioning and moving freely
System flow rate meets requirements for the installed collector type
External heat exchangers are not leaking or showing signs of damage
Solar tank connections are not leaking or showing signs of damage
Solar controller is functional without any alarms or faults indicated
Solar control accessories and monitoring equipment is functioning correctly
Solar heat transfer fluid pH tested with test strips (normal 7.5-8.5
Solar heat transfer fluid freeze point checked with refractometer
Solar heat transfer fluid is not thermally stressed or degraded (black or foul smelling)
Bleed air from the internal air separator on the Solar-Divicon
Solar fluid pressure has not dropped or changed since commissioning
Pressure Relief Valve (PRV) has not released or does not indicate signs of leakage
Overflow container does not contain glycol as a result of a discharge from the PRV
Interconnection pipes between collectors are centered and not damaged
System pipe insulation and protective jacketing is not damaged or missing
Roof or wall penetrations not leaking or showing signs damage
Solar control wires are secure without any visible damage
Thermostat gauges are operational and not showing signs of damage
Pressure gauges are operational and not showing signs of damage
Enamel steel tank sacrificial anode removed and inspected (replace if required)
Collector glass (glazing) seals are not cracked or broken
Collector absorber sheet not showing signs of degradation or flaking
Collector mounting hardware, racking or substructure components are secure
System pipe is supported properly with pipe hangers (not sagging)
System pipe markings or labels are present and legible
Solar tank internal heat exchanger inspected for leaks or signs of corrosion
External heat exchanger (brazed plate/shell & tube) inspected for leaks or signs of corrosion
Expansion tank gas pressure has not changed since commissioning
Solar heat transfer fluid replacement (complete flush and fill)
Maintenance and Inspection Items:
Commercial or industrial usage for a purpose other than
heating the building or DHW shall be deemed inappropriate.
Any usage beyond this must be approved by the
manufacturer for the individual case.
Incorrect usage or operation of the appliance (e.g. the
appliance being opened by the system user) is prohibited
and results in an exclusion of liability.
Incorrect usage also occurs if the components in the
system are modified from their intended use (e.g. through
direct DHW heating in the collector).
Adhere to statutory regulations, especially concerning the
hygiene of potable water.
Design and Operation
Recommended
Inspection Interval:
1 year
1 year
1 year
1 year
1 year
1 year
1 year
1 year
1 year
1 year
1 year
1 year
1 year
1 year
1 year
1 year
1 year
2 years
2 years
2 years
2 years
2 years
2 years
2-5 years
3-5 years
3-5 years
3-5 years
3-5 years
3-5 years
3-5 years
3-5 years
3-5 years
5-10 years
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