Service manual

12
Using Electronic Sniffers For Gas Leak Detection
The standard for leak testing is the same independent of natural gas or L.P. fuel.
All Whirlpool cooking appliances are manufactured in accordance with the CSA
agency standards. The allowable leak rate per component is specified in ANSI Z21.18
and Z21.21 for gas valve and regulator. The allowable leak rate is 200 cc/hr. for the
regulator and 200 cc/hr for the valve. Because our component is a combination valve
and regulator it is acceptable to have a leak rate up to 400 cc/hr in that area. We do,
however process our components to a much lower level to make sure we do not ap-
proach the limit.
An electronic leak detector detects the presence of any gas or contamination to the
immediate area. It does not distinguish the amount of gas/contamination in the area
that is being sensed. Electronic leak detectors are capable of sensing a leak rate that
is significantly less than what is acceptable. Because electronic leak detectors cannot
differentiate a leak of 100 ccs or 400 ccs of gas, false readings can lead to unneces
-
sary parts replacement and even red-tagging the range if a gas company is using it
improperly.
Bubble testing is more than adequate to effectively confirm leaks to insure the safe
operation of gas appliances.
The plastic cover over the regulator cap should be left in place as it serves as a dust
cover to the regulator valve diaphragm vent. The small pin hole vent in the regulator
cap provides atmospheric pressure to the back side of the diaphragm for proper op-
eration.
Elimination Of Broiler Pan & Grid From
All Products (Freestanding And Built-Ins)
Except Whirlpool Gold Units
Starting the 3rd Quarter, 2005, the broiler pan and grid were eliminated from Cooking
products. Customers will receive an “accessory card” to order a Broiler Pan and Grid
Kit for $5.95 (shipping).
The Pan and Grid will be porcelain-coated, unlike production parts that were a porce-
lain pan and aluminum grids.