Reznor VC series User Manual
NATURAL GAS HIGH ALTITUDE CONVERSION INSTRUCTIONS
Applies to : Gas-Fired, Tubular, Radiant,
Low-Intensity Infrared Heater
Models VPS, VPT, VCS, VCT
Part no. 270687
Section 1 …………VPS Three Fixing Fan.
Section 2 ……… VPS Four Fixing Fan.
Section 3 ……… VPT, VCS/T Three Fixing Fan.
Section 4 …………VPT, VCS/T Four Fixing Fan.
VPS Model
Fresh Air Inlet Plate Type
Size
VPS 3 Hole
VPS 4 Hole
VPT/VCT 3 hole
VPT/VCT 4 hole
VCS 3 hole
VCS 4 hole
60 80 100 125 150 170 200
* * * * * *
* * * * *
* *
* * * * * *
Fan orifice
plate
*
*
Size 60 80 100 125 150 170 200
Remove plate with ‘X’
Qty. of holes (10mm)
Add plate with ‘X’ Qty. of
holes (10mm)
8 7 8 11 11 15 18
9 9 10 14 15 26 22
There are two types of combustion fan, one with three orifice plate fixings and one with
four orifice plate fixings. Follow the relevant procedure for the type of fan fitted to the
appliance being converted.
2
Section 1
Three Fixing Fan Procedure
Step 1: Remove the nuts securing the fan orifice
plate with an 8mm wrench. Remove the fan orifice
plate from the threaded studs.
Step 2: Fit the new high altitude fan orifice plate onto
the fan studs. Re-fit the 3 x 8mm nuts, using the
wrench to tighten.
Take care not to cross thread the fasteners.
Final Step
Ensure that when converted for use at high altitude,
the data label is amended. Cover the previous
‘X’ (highlighted in a circle) with a blank label.
The altitude conversion can be identified with
another ‘X’ in the blank box indicated by the arrow.
Ensure a permanent marker is used.
Section 2
Four Fixing Fan Plate Procedure
Step 1: Using a No.2 crosshead screwdriver
remove the four screws securing the fan orifice
plate . Remove plate.
Step 2: Fit the new high altitude fan orifice plate and
secure with the same four screws.
Take care not to cross thread the screw
fixings.
VPS Model Data Label
3
Burner Top Cover
Fan Orifice Plate
Remove plate with ‘X’
Add plate with ‘X’ Qty. of
Size (VCS only)
Qty. of holes (10mm)
holes (10mm)
VPT, VCS/T Models
60 80 100 125 150 170 200
8 7 8 11 11 15 18
9 9 10 14 15 26 22
Size (VPT/VCT only)
Remove plate with ‘X’
Qty. of holes (10mm)
Add plate with ‘X’ Qty. of
holes (10mm)
60 80 100 125 150 170 200
6 10 8 11 15 11 18
9 11 11 14 18 18 22
There are two types of combustion fan. One with three orifice plate fixings and one
with four orifice plate fixings. Follow the relevant procedure for the type of fan fitted to
the appliance being converted.
4
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