Zenner zelsius C5 IUF Manual do Utilizador descarregar pdf (Página 7)

7

Notes to installation of the ball valves

■ Mount ball valves up- and downstream of the

meter.

■ Mount a ball valve with bore M10x1 for direct

sensors in the supply. This is required for the

installation of the supply sensor.

■ For symmetrical temperature sensor instal-

lation, mount an identical ball valve in the

return. This one is used for mounting the

return sensor.

Mounting heating-/cooling energy meter

■ Flush the system thoroughly before installing

the heating-/cooling energy meter.

■ Close valves and release pressure.

■ Dismount the existing ow sensor or meter

blank.

■ Use only new and awless sealing material

and check the seal face for damage.

■ Install the new ow sensor according to the

correct ow direction and installation position.

■ Turn heat computer to desired reading posi-

tion.

Mounting temperatur sensors

■ The installation of the temperature sensors

should be preferably symmetrical and direct

installation.

■ Do not remove the return sensor if already

mounted on the VMU. This is also valid for

all the safety seals which are mounted on the

device as a standard.

■ Sensors are colour-coded (red= hot; blue=cold).

■ The connecting cables may not be buckled,

extended or shortened.

■ The seal at the sensor installation point on the

measuring capsule may not be damaged.

■ Remove locking screw and seal at the ball

valve completely, if existing.

■ Attach the O-ring to the installation aid (the

2nd O-ring is only a spare O-ring). Using the

installation aid, insert the O-ring into the

installation point according to DIN EN 1434

with a slight circular motion.

■ Using the other end of the installation aid

bring the O-ring into the correct position.

■ Insert the 2 halves of the plastic connector

into the sensor’s three notches (crimps) and

press them together.

■ Use the installation aid as positioning aid.

■ Insert the temperature sensor into the installa-

tion point and screw it in tightly until the dead

stop of the seal on the 12-point is reached

(mounting torque 3-5 Nm).

■ The temperature sensor installation point

which is optionnally integrated in the ow

sensor must be secured.

■ Secure the sensor after installation against

unauthorised removal with appropriate sealing

(available as a sealing set)!

Installation DF-adapter

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