T29197-X, T29344-X: Heating 8+16 kW (4T/4S)

Purpose

Replacing the Heating (EH 1)

Qualification

Qualified personnel

Material

Required material

• Torx screwdriver, size 20, 30
• open-end wrench, size 10
• thread sealant (e.g. Loctite 620 liquid seal)
• Assembly grease for O-ring (e.g. Silicone grease)

Procedure

Cooling / emptying

• On the basic screen, tap the function button (). 
• On the basic screen, tap the function button ().
  • The unit cools down and evacuation the mold before switching it off.

Check pressure

• Select [Display] > [Actual Values] > [System Pressure].
  • The system pressure must display 0.0 (±0.1) bar.
• The pressure shown by the pressure gauge must be 0.0 (+0.3) bar.

Switch off / remove connections

• Switch off the main switch (QS 1), pull out the mains-connector.
• Remove all external hydraulic connections on the Main line (OUT) and Return line (IN).
• For units with a serial number up to 2413-nnn: Remove the intermediate adapter.
  • For note on assembly/disassembly, see video http://hb.click/6-SC-T29041

Remove covers / open front

• Remove covers from the unit (→ Open unit).
• Open the front door and fold the front completely down by loosening the two Torx screws.
• Remove the entire upper air duct cover. To do this, unscrew and remove 6 mounting screws.

Unplug cable / remove pipes

• Unplug the X302.X and/or X303.X connector from the ZSM-61 power measurement board.

• • 400/460 V: X302.X → A 8.1 (ZSM-61)
  • 220 V: X302.X, X303.X → A 8.1 (ZSM-61)

• Completely remove the heating cable.
• Remove all piping. Water may escape when the connections are opened. To make it easier to remove the pipes and heating, the following steps must be carried out:
  • Remove bracket ①
  • Remove the cooler and pump mounting screws ②, ③.
  • Remove the mounting clips (split pins) from the pipe connections.

Remove the heat transfer medium module (WTM)

• Remove the heat transfer module mounting screws on the back wall of the unit.
• Extend the heat transfer medium module sideways and set aside.

Remove heater module (EH_1)

• Remove the heater module mounting screws on the back wall of the unit.
• Extend the heater module and set it aside.
• Remove the temperature sensor (BT_1) and thermostat (ST_1) and transfer them to the new Heating.
  • Make sure the thermostat is firmly attached to the surface.
• Install the supplied screw connector to the new Heating with thread sealant ④
  • without additional equipment_ZG: T15568
  • with additional equipment_ZG: T21203
    • Unneeded screw connector can be discarded.
• Transfer device-specific components.
  • HB-100Z61/62: Remove the sealing plug with mounting bracket ⑤ and cover with mounting screw ⑥ and transfer them to the new Heating.
  • HB-140/160Z61/62: Remove the linear stepper motor with housing and piston and transfer it to the new Heating ⑦

Install heater module (EH_1) / heat transfer medium module (WTM)

ATTENTION!

Screw connections, in particular combinations of stainless steel/stainless steel or steel/stainless steel, tend to get stuck or get stuck when operation for a long time at high temperatures. That's why:

• Use appropriate lubricants

• Position the heater module.
• Install and tighten the mounting screws on the back of the appliance.
• Position the heat transfer medium module and push it in sideways.
• Install and tighten the mounting screws on the back of the appliance.

Installing pipes

NOTE!

Lubricate O-rings with suitable mounting grease before installation. This facilitates installation, prevents damage and increases the life of the O-rings.

• Check the O-rings for wear and replace them if necessary.
• Install pipes.
• Install mounting clips (split pins) on the pipe connections.
• Tighten the cooler and pump mounting screws ②, ③.
• Install the bracket ①.

Connect the cable / Attach the nameplate

• Route the heating cable along the cable harness into the electrical housing.
• Connect the X302.X and/or X303.X connector to the ZSM-61 power measurement board.

• • 400/460 V: X302.X → A 8.1 (ZSM-61)
  • 220 V: X302.X, X303.X → A 8.1 (ZSM-61)

• Fold up the front and secure 2x Torx screws.

Check tightness / function

• Re-install the air duct cover. Secure with 6 mounting screws.
• Re-install external hydraulic connections on the Main line (OUT) and Return line (IN).
• Connect the mains-connector and switch on the main switch (QS 1).
• Switch on the unit using the I/O button (), check the tightness and function of the unit.
• After a successful tightness test, heat up the temperature control unit to the maximum device temperature.

Switch off / install covers

• On the basic screen, tap the function button ().
  • The unit cools down until the temperature is lower than the cooling temperature. The unit then switches off.

• Switch off the main switch (QS 1).
• Re-attach covers from the unit (→ Open unit).