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OV500 SERIES RACK OVEN - SERVICE PROCEDURES AND ADJUSTMENTS
3. There should be a vacuum reading of:
OV500G1
Oven
Temp
Natural Gas
(minimum readings)
Propane
(minimum readings)
Cold
-0.46 "W.C.
-11.7 mm W.C.
-0.11 kPa
-0.46 "W.C.
-11.7 mm W.C.
-0.11 kPa
400°F.
204.4°C.
-0.32 "W.C.
-8.13 mm W.C.
-0.08 kPa
-0.32 "W.C.
-8.13 mm W.C.
-0.08 kPa
OV500G2
Oven
Temp
Natural Gas Propane
300k Btu/h
75,600 kCAL/HR
317 Mj/HR
350k Btu/h
88,200 kCAL/HR
370 Mj/HR
300k Btu/h
75,600 kCAL/HR
317 Mj/HR
350k Btu/h
88,200 kCAL/HR
370 Mj/HR
Cold
Min. -0.43 "W.C.
-10.9 mm W.C.
-0.11 kPa
Min. -0.36 "W.C.
-9.1 mm W.C.
-0.09 kPa
Min. -0.43 "W.C.
-10.9 mm W.C.
-0.11 kPa
Min. -0.36 "W.C.
-9.1 mm W.C.
-0.09 kPa
400°F.
204.4°C.
Min. -0.31 "W.C.
-7.9 mm W.C.
-0.08 kPa
Min. -0.23 "W.C.
-5.8 mm W.C.
-0.06 kPa
Min. -0.31 "W.C.
-7.9 mm W.C.
-0.08 kPa
Min. -0.23 "W.C.
-5.8 mm W.C.
-0.06 kPa
OV500G1 DUAL POINT VENTING
Cold / 400°F. / 204.4°C.
-0.15" W.C.
-3.8 mm W.C.
-0.04 kPa
4. If minimum reading is not obtained, check the draft inducer motor and fan.
HOOD VENT DRAFT
PRESSURE TEST
1. Access the component panel area.
2. Verify operation of roof mounted ventilator.
NOTE: Verify plenum or grease filters installed.
A. Remove vacuum line near hood exhaust
pressure switch and connect incline
manometer or equivalent.
1) Single & Duel point venting ovens
minimum reading should be:
-0.6"W.C., -15.2 mm W.C., or
-0.15kPa.
NOTE: Standard hood reading of -0.3" W.C., -7.6
mm W.C.,or -0.08 kPa is acceptable if air volume is
verified as noted in specifications.
B. Disconnect manometer and reconnect
vacuum line onto hood exhaust pressure
switch.
NOTE: If vacuum requirements are not met, the
customer supplied hood vent stack must be modified
to meet the above stated requirements and tested
until minimum vacuum is met.
3. If draft diverter is installed (dual point venting),
continue.
A. Operate the oven for a minimum of 5
minutes.
B. While burner is lit, check for a back draft at
the draft diverter relief opening (i.e. smoke
emitted from a smoldering source).
C. If no back draft indicated (smoke going up
draft diverter relief opening) test is
complete.
F25361 (January 2010)
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