System Load; System Discharge - MAXA i-290 0106 Installer Manual

Caution: Do not obstruct the hole in the base panel for condensate drainage.
Especially in very cold climate regions, it is recommended to install elevation supports in order to allow ice formation under the unit without
damaging it by freezing. In addition, when outside air temperatures fall below 0°C, it is a good idea to install a heating element on the exhaust
pipe.
5.10.5 System load
CAUTION: Supervise all filling/reintegration operations.
CAUTION: Before filling/reintegration the system, disconnect power to the units.
CAUTION: The filling / reintegrating of the system must always take place under controlled pressure (max. 1 bar).
Ensure that a pressure reducer and safety valve is installed on the filling/reintegration line.
CAUTION: The water in the filling/reintegration line must be properly pre-filtered from impurities and suspended particles.
Ensure that a removable cartridge filter and a dirt separator are installed.
CAUTION: Regularly check and vent the air built up in the system.
CAUTION: Install an automatic air venting valve at the highest point of the system.
5.10.6 System discharge
If the unit needs to be drained completely, first close the manual inlet and outlet gate valves (not included in supply) and then detach the pipes
on the outside of the water inlet and outlet to drain liquid from the unit (to make this operation easier, it is recommended to install two drain
valves between the unit and manual gate valves on the outside of the water inlet and outlet).
A
B
30
MODEL i-290
0106 / 0109 / 0112 / 0115 / 0118
If it is necessary to top up the system or adjust the glycol content, the service tap can be used.
Unscrew the cap of the service tap (A) and connect a pipe of 14 or 12 mm (inertial diameter
measurements - check the tap model installed on your unit) connected to the water mains to
the hose connector, then fill the system by unscrewing the ring nut (B). Once the operation is
completed, tighten the ring nut (B) again and screw the cap (A). In any case, it is advisable to use
an external tap to fill the system.
i-290
Inverter air/water heat pumps with axial fans
Z
z
mm < 250