Reznor VR Unit Installation Manual - Manual (Page 11)

Form I-VR, P/N 205202 R13, Page 10
FIGURE 4 - Change the Combustion
Air Restrictor Plate
• 1st, remove and discard the factory
installed restrictor plate. (Save the
nuts.)
• 2nd, attach the restrictor plate from the
conversion parts bag.
Combustion Air
Restrictor Plate
3. Change Burner Orifice - Open both access panels on the bottom of the
burner/control box. Locate the burner orifice (See FIGURE 5).
FIGURE 5 -
Change
the Burner
Orifice
Burner
Orifice
Pressure
Switch Bottom
View
6. Mechanical (cont’d)
6.1 Prepare the Burner/Control Box (cont’d)
Using a 9/16” open-end wrench, remove and discard the factory-installed
burner orifice. Install the burner orifice shipped in the conversion package.
4. Model VR Size 200 Only - On a Size 200, change the pressure switch.
Instructions for Changing Pressure Switch
a) In the control compartment, locate the pressure switch (See FIGURE 5).
b) Mark and disconnect the two wires attached to the pressure switch.
c) Disconnect the rubber tubing from the pressure switch.
d) Remove the pressure switch. Using the same screws, install the Size
200 pressure switch. Attach the rubber tubing and wires.
5. Close the bottom panels. Adhere the label to the rear of the burner/control
box adjacent to the rating plate.
STEP 2) Re-position the Burner Box Hangers
1. See FIGURE 6A. Locate and remove the three screws retaining the two
burner box hangers (one hanger one each end).
2. See FIGURE 6B. Using the screws that were removed, re-attach the two
burner box hangers as illustrated.
FIGURE 6A - Shipping
Position of Box Hangers
FIGURE 6B -
Attach
hangers for
installation.
Hanger in
Shipping Position
Hangers