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Hach QC8500 Series 2 - Heater Assembly Installation and Removal; Heater Assembly Installation

Hach QC8500 Series 2
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53
Maintenance
10. Carefully wrap transmission lines around the manifold. Store the manifold in the
supplied plastic bubble bag.
11. To install another manifold, refer to section 3.1.6 on page 15.
5.4 Heater assembly installation and removal
DANGER
Potential Electrocution Hazard. Turn off System Unit power and allow the heater to
cool completely before touching the heater element or mandrel or before installing
or removing the heater assembly.
5.4.1 Heater assembly installation
Refer to Figure 48 on page 54.
To install the heater assembly:
1. Lift the existing drip tray assembly out of the channel. Disconnect the leak detector
cable and remove the tray.
Note: If an assembled heater needs to be removed, refer to section 5.4.2 on page 54.
2. Connect the 6-pin heater controller cable.
3. Connect the 3-pin leak detector cable.
4. Connect the 2-pin heater element cable.
5. Connect the protective earth (PE) ground wire terminal. Refer to Figure 48 on page
54, item 4.
a. Locate the screw in the center of the channel base and directly under the drip tub
Heater Controller.
b. Use the screw to secure the PE ground wire terminal to the channel base plate.
Note: This connection is critical to safety and protects from electrical hazards should a heater
fault occur.
6. Lower the heater assembly into the channel.
7. Slide the mandrel/tubing assembly over the heater element, with the thermocouple
cable faced up.
8. Connect the thermocouple cable plug into the panel jack on the side of the drip tray
(Figure 48 on page 54, item 3).
9. Place the manifold plate over the drip tray and connect the tubing from the heater to
the manifold. Refer to the method for exact connections.

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