PRESTIGE Venturi
Replacement Kit
3
For the reassembly process do not use adhe-
sive on any gasket surface.
11. Install the venturi gasket on the venturi and
reassemble the venturi / gas valve assembly to
the blower housing using the (2) M5 x 12
mounting screws supplied in the kit. Use the
#25 Torx wrench to tighten all screws and
secure the assembly.
12. Reconnect the rectifier plug to the gas valve
using the Phillips head screw (MCBA).
13. Reconnect Molex plug to the gas valve
(TriMax).
14. Reconnect the brass gas piping union connec-
tion. Open the main manual gas shutoff valve
before placing the PRESTIGE unit back into
operation check and test all gas connections for
leaks. Repair leaks if found.
Do not check for gas leaks with an open flame.
Use a bubble test. Failure to check for gas
leaks can cause severe personal injury, death
or substantial property damage.
15. Reattach the air inlet elbow to the venturi.
16. Reposition the Control Module panel and reat-
tach the front jacket panel.
17. Turn the electrical power “ON” to the PRES-
TIGE to return the unit back into service.
COMBUSTION TEST/ADJUSTEMENT
It is recommended that the installer perform a com-
plete combustion check to ensure the following
combustion levels are met at high and low inputs
and the burner is operating at optimum conditions.
NOTICE
WARNING
Gas Valve
Blower
Venturi / Blower Gasket
Venturi
Fig. 3: Venturi Assembly
PRESTIGE
Model
Venturi
Size
PS 60
055
PS 110
002
PE 110
PS 175
052
PS 250
051
Table 1: Venturi Sizes
Natural Gas
Propane
O2 Min.
2.30%
2.70%
O2 Max.
5.30%
4.70%
CO2 Min.
8.80%
10.70%
CO2 Max.
10.50%
12.00%
CO Max.
100 ppm
100 ppm
Table 2: Recommended Combustion Levels
