MPI Technologies FCX Manuel d'utilisateur télécharger pdf (Page 14)

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Water circuit connections are made in the back of

the unit utilizing the four 1" male pipe thread cou-

plings provided. Model FCX can be connected to va-

rious comfort heating water systems as well as to a

domestic hot water heating system if desired, obser-

ving that:

• Water circulating pumps provided in the va-

rious circuits must be large enough for each

circuit including the pressure drop of the boiler/

condenser in the unit. For optimum sound level

and power consumption, set the circulator to

the speed that is appropriate for the installation

flow rate and pressure drop.

• Isolation valves may be used in the various cir-

cuits to facilitate boiler maintenance without

having to completely drain each circuit. NE-

VER place an isolation valve between a pres-

sure relief device and a water tank.

• An expansion tank must be provided in the

system to support an expansion of 6 % of the

total water capacity of all the circuits employed.

• Safety pressure relief valve must be connected

to the drain.

• The water pressure gauge (not supplied) has

to be fitted outside the unit.

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MPI Technologies FCX Manuel d'utilisateur Page 14

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