ITR POLAR HD, Installation And Operating Manual

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Section 8, Operating the Heating Module
8-8 The POLAR™HD Heating Module
Figure 8-3 Remote Operating Panel
Burner Switch (Primary Heat Source)
• The burner switch on the remote panel controls the ON/OFF of
the diesel burner. The Burner LED will turn on when the
diesel burner has been activated.
AC Element Switch (Secondary Heat Source) (CH50 and
DM8 used in Tandem)
• The triple position AC element switch controls the activation
of a single 120 VAC immersion element only, dual 120 VAC
immersion elements jointly, or both elements off. The AC
heat LED will turn ON to indicate when the element(s) have
been activated.
Engine Pre-Heat Switch (CH Models with this Option Only)
Preheating the Engine
• The engine pre-heat switch (optional) controls the ON/OFF of
the engine pre-heat pump (not included). However, the
engine pre-heat pump (not included) will not function unless