Eco Heating Systems CB 105 HW, Инструкция по установке, обслуживанию и эксплуатации

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E93.1803.901 HW 36
Notes:
•
Connections on the water heater side should always be executed as drawn in the picture above.
•
1
Always apply safety components according to all applicable regulations.
•
2
In case of more than one tank, mount the tank sensor on one of the tank outlets. The temperature of
this tank will be assumed to be representative for all, provided that the installation design is correct.
•
In the inlet (return) connection of the water heater no check valve is recommended.
•
If needed, the water heater control can handle up to twelve water heaters.
•
For large capacity installations consult your supplier.
8.1.6 C
ASCADE CALCULATIONS
CB-HW water heaters and tanks can be cascaded in a number of possible combinations according to the instruc-
tions below. Pipe sizes should be selected conforming to the tables A, B and C below. These are minimum (cop-
per) pipe sizes; selecting smaller pipes will result in a higher water resistance of the system, in higher temperature
differences between flow and return of the boiler, and in a higher risk of calcification of the system.
Table A: Connections directly on the water heater(s)
Diameters D1 ( = OUTLET and INLET of each water heater)
(42 x 1,5 = Outside diameter mm x wall thickness mm e.g.)
ΔT = 16.5°C ΔT = 12.5°C
CB 85 HW
42

1.5
42 x 1.5
CB 105 HW
54 x 1.5
CB 125 HW
CB 155 HW
54

1.5
Example of a combination of three boilers and two non-EWD tanks
Water
heater Water
heater
Water
heater