Gondzik NL-BKDX100-400II/R, Руководство пользователя

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Mmin Minimum water volume in the water system
（
L
）
Q The rated heating capacity of the heat pump(KW)
T The defrosting time （ minute ）
M2 Total volume of other parts in the system except the buffer tank
6.2 The volume of the buffer tank must be ≥ Mmin-M2
6.3 If M2>Mmin,It is not necessary to install a buffer tank 。
6.4 For the correct operation of the heat pump, a minimum water volume must be ensured
in the installation, as well as a minimum flow in the hydraulic circuit of the machine.
If the minimum circulation flow is not reached by the heat pump, it will be blocked, and an alarm code will
be displayed on the controller display. According to the different capacity model installed, these volume
will be as below,
6.5 If the water volume of the installation is lower than this value, install a buffer tank in the
heating/cooling circuit. To avoid condensation and premature deterioration of the buffer tank, make sure
that all hydraulic fittings and connections are properly insulated, especially when the tank is to be used in
Cooling mode.
6.6 In multi-zone installations managed by thermostatic or similar valves, some method must be provided
to maintain the minimum flow rates indicated above, even when all zones are closed (bypass valve, etc.).