Thermostat Installation; Back To Index - COZY CDV335C Installation And Operating Instructions Manual

BURNER ORIFICE
This appliance is orificed at the factory for elevations up
to 2,000 ft. If installed above 2,000 ft., the BTU input
must be reduced 4% per 1,000 ft.
orifice chart for the proper orifice for a specific elevation.
Orifice change must be completed by a qualified installer
or service technician.
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 12. 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

Only for Models: CDV155C, CDV156C, CDV255C, CDV256C, CDV335C & CDV336C
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 10
on page 12.
MAINTENANCE
Fig 11: Specific Elevations
Model
No.
See the following
NATURAL GAS
CDV155C
CDV255C
CDV335C
PROPANE GAS
CDV156C
CDV256C
CDV336C
FIG. 12
CDV25/33-C
Page 13
0 to 2,000' - 4,000' -
2,000' 4,000' 6,000'
48 49 50
2.45mm 41 42
2.75mm 37 38
1.2mm 56 57
1.55mm 54 54
1.65mm 51 52
ORDER KIT #49800 44-1 High Altitude Kit
CDV15-C

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6,000' - 8,000' -
8,000' 10,000'
51 52
43 44
40 42
59 60
55 55
52 53
3"- 4"
Outer Flame
3/8" Inner
Mantle
4" - 5" Outer Flame
3/8" Inner Mantle
1017757-A