Checks Prior To Operation; The Circulation Pump - Immergas MAGIS M4-30 Use And Installation

10.3

CHECKS PRIOR TO OPERATION.

Checks before the initial start-up.
DANGER
Switch of power before performing any connection.
After installing the unit, check the following before switching on the circuit breaker:
• Wiring on field: Make sure that the wiring on field between the local power supply panel and the unit and the valves
(if applicable), the unit and the room thermostat (if applicable), the unit and the domestic hot water tank, has been
connected according to the instructions given in Chap. 9.7 "Wiring on field", according to the wiring diagrams and
local laws and regulations.
• Fuses, circuit breakers or protective devices: Check that the fuses or protective devices installed locally are the size
and type specified in Chap. 14 "Technical specifications". Make sure that the fuses or protective devices have not been
bypassed.
•System indoor unit backup heater switch: Do not forget to switch on the circuit breaker of the indoor unit backup
heater in the control box. See the wiring diagram.
• Heater of DHW storage tank switch: Do not forget to switch on the circuit breaker of the booster heater (this only
applies with the optional domestic hot water tank installed).
• Earthing wiring: Make sure that the earth wires are connected properly and that the earth terminals are tightened.
• Internal wiring: Visually check that there are no loose connections or damaged electric components.
• Assembly: Check that the unit is assembled correctly, to avoid anomalous noise and vibrations when starting the unit.
• Damaged equipment: Check that there are no damaged components or compressed pipes inside the appliance.
• Refrigerant leak: Check that there are no refrigerant leaks inside the unit. Contact your local dealer if there is a re-
frigerant leakage.
• Supply voltage: Check the supply voltage on the local power supply panel. The voltage must match that indicated on
the appliance's rating plate.
• Air purge valve: Make sure that the air purge valve is open (at least 2 turns).
• Shut-off valves: Make sure that the shut-off valves are completely open.
10.4

THE CIRCULATION PUMP.

Models 4-16 kW.
The relationships between the head and the nominal waterflow, the return PMW and the nominal water flow are shown
in the following charts.
Pump head
Prevalenza pompa
Q (m
The adjustment area is between the maximum speed curve and
L'area di regolazione è compresa fra la curva di velocità massima
the minimum speed curve.
e la curva di velocità minima.
Maximum speed Velocità massima
Minimum speed Velocità minima
3
/h)
99
max.
3
Q (m /h)