Turbo Chef Technologies Residential Single and Double Wall Oven Oven Systems, to the manufacturer

5.4OVEN SYSTEMS

Right Lock Motor Assembly		e.	Select “Top Oven.”
The right lock motor assembly consists of a motor,		f.	Select “Mags.” For Gen 1 ovens, the Cook-
			Wheel must not be in the Off position.
locking mechanism for the right side of the Speed-
cook oven door, and three switches that activate	2.	Place a water load into the cook cavity (Figure
when a cam is turned while the door closes.		5.3). Water load must conform to the following
For Gen 1 ovens, when the secondary, monitor, and		specifications:
		-	Volume: 275 ml ± 15 ml
lock switches are closed, the I/O control board opens
		-	Temperature: 68°F ± 9°F (20°C ± 5°C)
the K2 relay to prevent a direct short to the 20-amp
		-	Vessel: Low form, 600 ml beaker with an
fuse.
			inside diameter of approximately 3.35” (85
The right lock switch closes to supply power to the			mm) and made of Pyrex® or equivalent.
locking mechanism when the cam is turned while	3.	Close the oven door and turn on the
the door is closed.
		magnetrons.
For Gen 1 ovens, the right switches (when closed in	4.	Position the microwave survey meter as shown
conjunction with the primary switch) supply power		in Figure 5.4.
to the K3 and K4 relays, which close and distribute	5.	Measure microwave emission:
power to the right and left high-voltage transform-
ers, allowing for microwave operation.		a.	Leave the magnetrons on for 60 seconds.
For Gen 2 ovens, the door switch circuit starts and		b. While the magnetrons are on, measure
			microwave emission around the door,
returns on the control board (secondary switch =			moving the meter sensor at 1 inch/second.
J15-9 and 10; monitor switch = J15-5 and 6).			As microwave leakage is observed moving
Control voltage leaves the control board to the relay			the sensor at 1 inch/second, note any meter
board for relay operation.			spike areas that come close to 5mW/cm2 for
			later re-measurement.
Measuring RF Leakage for Microwave Safety		c.	Replace the water load every 60 seconds
			until the test is completed.
An RF (microwave) leakage test must be performed
	6.	Once done scanning the entire door, replace the
at the conclusion of the following service tasks:
		water load.
- Door removal, replacement, and/or adjustment
- Door gasket removal, replacement, and/or	7.	Close the oven door. While the magnetrons are

adjustment	on, return the meter probe to any “meter spike”
- Waveguide removal and /or replacement
	areas and allow the probe to remain in the
- Magnetron removal and/or replacement
	“spike” area for 15 seconds per area. Note the
- Door skin removal and replacement
	highest reading obtained in each area.
WARNING: If the unit fails the microwave
leakage test (leakage greater than 5mW/cm2), the
oven must be taken out of service immediately until
the defect is corrected. In addition, the CDRH
Regulation 21 Subpart C, 1002.20 requires that
leakage readings of over 5mW/cm2 must be reported
to the manufacturer.

To measure RF leakage,

1.Access the Installer Setup Mode.

a.Press the “Info” key.

b.Select “Oven Setup.”

c.Select “Installer Setup.”

d. Input the password 042259. Figure 5.3: Water Load Placement