PROPER BURNER FLAME
The burner flame may be observed by raising the sight glass cover. A proper flame will have a dark blue inner mantle
that sits right on top of the burner with a lighter blue outer mantle rising over the burner, see Figure 10. There may be
some yellow where the pilot flame and burner flame meet. There is no primary air adjustment on the burner, and
proper flame is assured since the correct manifold pressure and orificing has been done at the factory.
THERMOSTAT INSTALLATION
FOR CDV155B, CDV156B, CDV255B, CDV256B,
CDV335B, CDV336B MODELS ONLY
Follow the instructions included with the thermostat. If the thermostat is to be wall mounted, select a location in the
same room as the heater, approximately five feet above the floor on an inside wall where it won’t be affected by heat
or cold sources such as direct sunlight, televisions, fireplaces, hidden hot or cold water pipes, drafts, etc. The
thermostat must not be placed in an adjacent room. The furnace is equipped with a self-generating control system;
never connect to a 24-volt transformer or household electric system. Do not splice or attempt to use more thermostat
wire than is supplied. Connect thermostat wires to thermostat and mount thermostat to wall, run wire to furnace,
securing with insulated staples provided, and connect to valve terminals marked TH, see Figure 8.
Page 11
3” - 4” OUTER FLAME
4” - 5” OUTER FLAME
3/8” INNER
MANTLE
FIGURE 10 - CDV15-B
FIGURE 10 - CDV25/33-B
3/8” INNER
MANTLE
To Next Page
Loading...
