8. Remove one of the plastic strain reliefs on the
bottom of the boiler and install the duplex con-
nector in its place. Place one washer on the
inside and outside of the boiler before installing
the duplex connector. The duplex connector
will allow the wiring from the domestic circula-
tor to enter the boiler. See Fig. 5.
9. Connect the wiring from the indirect circulator
to the indirect circulator wiring harness by lift-
ing up the orange lever on the splicing connec-
tors and inserting the stripped wire. Push down
on the orange lever and verify that the wire is
held in the connector.
10. Reengage the guide pins of the module tray into
the bottom jacket panel. Rotate the tray up into
position.
Ensure control wiring does not hinder the
insertion of the tray into the bottom jacket
panel.
11. Mount the front jacket panel by engaging the top
of the panel into the top jacket panel (Fig. 6).
12. Swing the bottom of the front jacket against the
side panel and secure in place by tightening the
retaining screws (Fig. 1).
13. Turn power to the boiler ON and adjust the
appliance parameters as follows:
NOTICE
CHALLENGER
Indirect Circulator
Wiring Harness
Kit
3
Fig. 6: Installation of front panel
Ground Wire
(Other wires removed
for clarity)
Fig. 4: Wiring Harness Terminations
Duplex
Connector
Fig. 5: Duplex Connector Installed
