Enerblue PURPLE, Руководство пользователя и по обслуживанию

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USER and
MAINTENANCE
MANUAL
19
Fig. 4
Connect to the
terminal board
of the unit�
> Make sure that the flow meter (plastic body) is securely fastened on the metal coupling with the plastic
locking ring, and that the arrow on the flow meter points in the direction of the flow of water�
> Make sure to put the O-ring seal between the locking ring and the metal fitting� The O-ring is provided
in the plastic cover that protects the rod of the flow meter�
> Connect the hydraulic circuit to the other end of the “T” fitting�
> Feed the electrical cable of the flow meter through the hole in the structural steelwork and connect
the flow meter to the terminals in the electric control board as indicated in the electrical diagram�
> To disassemble the flow meter, unscrew the plastic locking ring� When reassembling the flow meter,
put the ring seal between the metal fitting and the plastic part�
8.5 WATER FLOW RATE TO THE EXCHANGERS
The nominal water flow rate refers to a thermal gradient of 5 °C between the inlet and outlet�
The maximum water flow rate refers to a thermal gradient of 4 °C: anything higher could cause too great
a pressure drop and the risk of damage to the evaporator�
The minimum allowed flow rate is that with a thermal difference of 5°C� Lower flow rate values could
cause excessively high condensing temperatures, leading to intervention of safety devices and unit
shutdown�
In any case, refer to the specific Technical Booklet for the permitted conditions for the flow of water in
and out of the exchangers�