Accurex Temperature Interlock Installation, Operation And Maintenance Manual - Page 9

Browse online or download pdf Installation, Operation And Maintenance Manual for Controller Accurex Temperature Interlock. Accurex Temperature Interlock 12 pages.

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Testing

1. Turn fan switch on, then off to ensure proper fan

operation before cooking equipment is started. Once

this is veriﬁed, testing can proceed.

2. For testing only, locate the time delay relay. Turn the

time adjustment knob counterclockwise to the ﬁrst

mark in order to expedite the testing process. Make

a note as to where the time relay was originally set.

3. Heat up cooking equipment with fans off. Once the

temperature reaches the set point of the thermostat

the fans will start, preferably within 5 to 10 minutes.

If the fans take more than 15 minutes to start,

decrease the temperature set point by turning the

adjustment screw 1/16 turn clockwise. Do not apply

direct ﬂame to the thermostat

4. If an adjustment was made in Step 3, repeat now.

5. After veriﬁcation of fan start-up, shut down cooking

equipment. The fan switch should still be in the off

position. Once cooking equipment has cooled, the

thermostat will open triggering the timer function in

the time delay relay to begin. Once time has expired,

the fans will shut down. Thermostat operation can

be veriﬁed by checking voltage (115 VAC) between

terminal blocks T1-B and N1 in the control panel.

6. Once proper operation has been veriﬁed, set

the dial on the timed relay to its original setting

(approximately 20 minute delay).

CAUTION

The thermostats should never be exposed to direct

flame. This can cause permanent damage to the

thermostat.

NOTE

During testing, if fans do not start automatically in

the first 15 minutes of cooking equipment activation,

manually start fans to avoid accidental fire system

dump due to heat build-up.

Operation

1. Turn fans on and off using the fan switch. It is normal

for the fans to remain running after the switch is

turned off. The exhaust thermostat will open after

heat is no longer present under the hood which will

activate the timed relay to begin its countdown.

Once time has expired, fans will shut down. The

timed relay is adjustable from 1-100 minutes. The

recommended time delay setting is approximately

20 minutes.

2. In the event that the cooking equipment is started

without turning the fans on manually, the fans will

turn on automatically and remain running with the

presence of heat under the hood. The exhaust

thermostat will open after heat is no longer present

under the hood which will activate the timed relay to

begin its countdown. Once time has expired, fans

will shut down.

Temperature Interlock