ATTACK DP PROFI, Instructions For Use Manual

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2. Connection with accumulation tank
Connection system consists in heating up of water in accumulation tanks and the warmth is
gradually taking away from the tanks according to the request from the heating system.
By the operation with several heating ups at full performance, accumulation tanks will be
heated for the temperature of 90-100°C.
Heating with accumulation tanks in connection with the ATTACK DP boilers bring more
advantages.
Among the main advantages belong enlargement of the boiler life and in the end result also
lower consumption of fuel.
Recommended volumes of accumulation tanks according to boiler output:
DP25 - 1500 - 2000 l
DP35 - 2000 - 2500 l
DP45 - 2500 - 3000 l
DP75 - 4000 - 4500 l
DP95 – 5500 – 6000 l
The operation with the accumulation tanks
After making- fire phase, the boiler heats the water in the accumulation tank to 90 - 100°C by
full output in 2 - 4 feedings. After next feeding the heat is taken from the accumulation tank
only, through the three-way valve. The offtake period depends on the tank volume and external
temperature. In heating season it can be 1 - 3 days (if the prescribed min. volume is respected).
If it is not possible to use the prescribed volume of the tank, it is recommended to use at least
one tank of the volume of 500l for start of operation and for afterburning of the boiler.
Minimum accumulation tank volume is described in the tabel of technical parameters.
Standardly supplied accumulation tanks
The tank insulation
The accumulation tanks ATTACK AK500, AK800, AK1000, AS500, AS800 and AS1000 are
usually supplied with detachable insulation from soft polyurethane with white leatherette
cover.
Type of tank Volume(l) Diameter(mm) Height(mm) thermal changing
surface(m
2
)
AK500 500 650 1650
AK800 800 790 1730
AK1000 1000 790 2050
AS500 500 650 1650 2,0
AS800 800 790 1730 2,4
AS1000 1000 790 2050 2,8