CAUTION!
Mechanical hazard – risk of damage to the hot runner. Do not bend the nozzle heater wires
at a 90° angle. Do not bend the nozzle heater wires directly at the lead exit of the heater
body. The wires will crack or break over time.
5. On U750 heaters, bend the nozzle heater wires in an arc against the heater body. Make sure
each bend has a minimum 10 mm (0.4 in) radius.
Figure 6-25: Ultra Nozzle Heater - U750
1. Ultra Nozzle Heater 2. Nozzle Heater Wires
6. On U500 heaters, rst bend the leads along the curvature of the heater, and then bend them
up or down (away from the lead exit of the heater body) to meet the manifold plate wire
groove as required.
Figure 6-26: Ultra Nozzle Heater - U500
1. Heater leads before bending 2. Heater leads after bending
7. Route the nozzle heater and thermocouple wires through the wire channels in the manifold
plate. Make sure all wiring is properly retained in the wire channels using wire clips. Make
sure of the following:
a. Wiring does not protrude above the plate surface.
v 2.2 — March 2021 Unify Manifold System
86 Removing and Installing Nozzle Heaters
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