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1
PRODUCT TECHNICAL SPECIFICATION
1.1
FUNCTION DESCRIPTION
Indirect stationary tank OKC 400, 500 NTRR/HP/SOL is designed for water heating in conjunction with a heat
pump. Reheat can be carried out by the electric heater TJ 6 / 4“.
1.2
DESIGN AND BASIC DIMENSIONS OF TANK
1.2.1
PRODUCT DESCRIPTION
The tank receptacle is welded of steel plate and, as a unit, enamelled to resist hot water. For additional
corrosion protection, 2 magnesium anodes are attached in the vessel in the upper part, adjusting the electric
potential inside of the vessel interior, decreasing corrosion. Inside the vessel there are two welded spiral heat
exchangers made of steel pipe with enamelled outer coating, and connections of hot and cold water,
circulation and 3 brass reservoirs.
The upper tubular heat exchanger is designed for the heating circuit, lower tubular heat
exchangers is designed for solar system.
The tank is placed on the ground, next to the heating water source, or in its vicinity.
All connecting distributions must be properly insulated from heat.
On the side of the reservoir there is a cleaning and inspection aperture ending with a flange of 110 mm
diameter, the pitch of eight M8 bolts is 150 mm. The reservoir is equipped with a G 1 ½ " aperture for screwing
an additional heater. This option is used, if the reservoir is connected into the system with a heat pump,
for water reheating at the top of the reservoir to the desired temperature. The tank is insulated
with polyurethane foam of 50 mm thickness, polyurethane foam does not contain freons. The tank shell
consists of plastic container, the connecting parts are metal coated. The entire tank stands on three
rectification screws with a possibility of levelling floor unevenness within the range of 10 mm. Insulation
of the receptacle is 50 or 60 mm Freon - free polyurethane foam.
