Heat and Comfort
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12. Determination of Storage Tank Size
Calculation of the smallest tank size:
Vsp = 15 Tb x Qn (1-0.3 x (QH/Qmin))
where: Vsp ….. volume of storage tank in l
Tb ...…. burning time in hours
Qn …… nominal heat capacity in kW
QH …… heat load of the buildings in kW
Qmin … lowest heat capacity in kW
The dimensions of the storage tank must be determined depending on the capacity, fuel
used, depending on which one has the biggest storage tank. No storage tank is needed if
the as calculated volume is less than 300l.
13. WARRANTY SHEET
For the following hot water boilers: H412, H418, H424, H430 Fabrication No.
Manufacturer: OPOP spol. s r.o., Valašské Meziříčí
Tel.: 571 675 589, Fax.: 571 611 225
Shipped from Plant: ___________________________________________________
Warranty Conditions:
The present Warranty Sheet contains a certificate of quality and completeness. The
manufacturer confirms that the product has been checked and found to conform, through its
workmanship, to technical conditions and ČSN EN 303-5.
The quality, function and workmanship warranty covers the period of 24 months from the date
of sale to the appropriate customer, not longer, however, than 30 months from the date of being
shipped from the warehouse of the production plant, which means that any defects to be
demonstrably found to be down to defective material, faulty design or faulty workmanship will be
removed at our own expense within the shortest possible interval under the condition that the
boiler:
• is in normal technical condition as specified by the operating manual
• is connected to a venting unit to ČSN 73 4201:1989
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