Spring Air Systems KES Enviro, Operation And Maintenance Manual

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Enviro Maintenance Manual 2004
ODOR SPRAY SYSTEM
Operating and Maintenance
The Spring Air Systems Inc. odor spray unit has a one-year warranty from startup. The two timers, cycle
timer B01, and spray timer B02, are factory set (5 minute cycle and 2 second spray) and then adjusted
during startup to the odor reducing intensity required for the application. The B01 cycle timer is generally set
between 5 to 10 minutes. The B02 spray timer is generally set between 2 to 60 seconds.
How does it Work?
The odor spray setting is a qualitative measurement. The spray timers are field set to provide adequate
odor reduction for the installation. This is completely subject to what a particular person feel is an
acceptable discharge odor.
During the spray timer activation the combination air compressor and air-atomizing nozzle injects a volume
of odor solution into the exhaust discharge. This solution is carried along the discharge duct and vented to
atmosphere. The spray solution chemically activates with the kitchen exhaust air to reduce the kitchen
exhaust odors. As the solution is carried down the duct some adheres to the duct walls. We will call this the
spray residue. During the cycle time when the spray is not activated this spray residue continues the odor
reducing process as the exhaust air passes. Therefore installation with longer discharge ducts can normally
use a longer cycle time because there will be more spray residue. A shorter run of discharge duct usually
results in shorter cycle time.
A. When adjusting the timers the object is to use as little spray solution as possible to provide adequate
odor reduction:
1. First adjust the spray cycle, B01 timer.
2. Reduce this setting by ½ of the original cycle setting and check the operation. If ½ proves
adequate, increase the cycle back to ¾ of the original cycle setting. If this is adequate increase to
7/8 of the original setting and so forth.
3. If reducing the setting by ½ is not adequate decrease the cycle to ¼ of the original setting. If this is
not adequate adjust the spray timer B02.
a. Increase the spray time B02 in increments of 5 seconds. After each 5 second increase
evaluate the quality of the exhaust discharge air to determ ine if it is acceptable to the user.
b. When the spray timer setting equals the cycle timer settings the spray will be continuous.
The maximum setting of B02 should not exceed the cycle timer B01.
The odor spray bottle must be changed regularly depending on the length of time set on timers B01 and
B02. The odor spray line from the spray bottle to the spray nozzle must be cleaned every 6 months in a
water and detergent mixture. The compressed air gauge should read between 10 and 15 psi. When the air
gauge i s reading below 10 psi clean out the compressed air line. If the pressure is still low proceed to the
next step compressor maintenance.
When there is odor in adjoining floors or office spaces
A kitchen located in the interior of an office building must be very negative to keep the kitchen odor within
the kitchen. We recommend the kitchen be a minimum 20% negative. The fresh air supply is 80% of the
total exhaust air from the kitchen space. When there is odor in adjoining spaces check the following.
1. The kitchen is not negative enough to keep the smell of the kitchen in the kitchen. If this is the
case the odor is usually present all the time, even when there is no cooking. Reduce the amount of
fresh air to the kitchen by adjusting the supply fan volum e.
2. The kitchen may be connected to the same building A/C unit as the rest of the floor. If this is the
case the return air grilles in the kitchen draws the kitchen odor to the main A/C unit and disperses
the odor throughout the floor. The main A/C return must be blocked from the kitchen and put on a
separate A/C unit.
3. The floor above the kitchen have odor. There are three possibilities.
a. The exhaust shaft is not sealed and the kitchen exhaust is leaking out onto the floors
above the kitchen. Either adjus t the amount of odor spray per section "A" above or install