Sterling Plumbing 882.00254.00 Heat Pump User Manual


 
7/50D Plus or 7/50D Controller Chapter 3: Installation 18
Terminating Cable Runs
After you’ve run the black and grey network cables, you need to properly terminate the ends
of the cables. By doing so, you’ll insure that the network runs properly. You will also have
the benefit of being able to measure voltage in the system without disrupting operation.
This section lists procedures for terminating these cables. To properly terminate a cable run:
1. Mount three standard KwikLink connectors to a mounting plate in a triangle
configuration. See Figure 4 on Page 19 for an illustration.
Make sure that each connector is installed with the hinge side down.
2. Mount the tubing clamps to the mounting plates. Each mounting plate requires two
(2) tubing clamps.
3. Mount the standard resistor cap from the KwikLink connector kit on the top center
KwikLink connector for the black power flat cable. The standard resistor cap has
metal prongs in the center.
Repeat for the outside end KwikLink connector on the grey data flat cable.
4. For the inside KwikLink connector (next to the outside end on the grey cable), mount
a separately-packaged blank cap on it instead of the standard resistor cap in the
KwikLink connector kit.
Discard the standard resistor cap to eliminate confusion.
5. Mount the mounting plate assembly on the vacuum line at the end of the cable run.
See Page 17 for more information.
6. Using the straight-blade cable cutter, carefully trim each flat cable so it sticks out past
the final KwikLink connector by
1
/4” to
3
/8”.
Place a dust cap over the end of the trimmed cable.
7. Lay the dust cap and cable into the KwikLink connector so the dust cap tabs engage
in the connector slots. The dust cap tabs should fit into the connector slots perfectly.
Left Right
8. Lay the cable in the hinged base, noting the correct keyed profile; flat edge toward
the hinge, keyed edge toward the latch. Make sure that the cable and dust cap are
properly seated inside.
9. Making sure that the cable is completely straight, carefully close the hinged
assembly, and apply firm, even pressure until the first latch locks into place.
Note: Make sure that the flat cable is completely staight before continuing!!
The latch has two catches; the first loosely holds the connector on the cable, the
second requires more pressure to close the connector tightly. The cable must be in the
correct position for the connector to close properly.