Operating instructions

VENTILATOR HOOD
HOOD SECTION - VACUUM SYSTEM
11
SV504 SvcManual WV-4H(RW)
SWITCH FUNCTION
VS1 PRE-FILTER POSITION MONITOR
Unit will not function unless a pre-filter
is properly installed, as sensed by the
pressure drop across it. Pressure drop
across the pre-filter must exceed setting
before cooking appliance is energized.
Insufficient pressure drop will illuminate
"CHECK FILTER" indicator.
VS2 FILTER PACK ALERT
Will illuminate "REPLACE FILTER PACK"
indicator if pressure drop across the filter
pack exceeds setting.
VS3 PRE-FILTER ALERT
Will illuminate "REPLACE PRE-FILTER"
indicator if pressure drop across the pre-
filter exceeds setting.
VS4 AIR FLOW MONITOR
Pressure drop must exceed setting before
cooking appliance is energized. As filters
become plugged, airflow decreases.
Beyond the useful life of the filters, air flow
will be insufficient to maintain the required
pressure drop, which will shut-down
ventilator fan and cooking appliance and
illuminate "SERVICE REQUIRED"
indicator.
IMPORTANT:
Vacuum switch settings are factory set, and are not
adjustable.
PLENUM PORT
(AFTER FILTER PACK)
CABINET PORT
(BEFORE FILTER PACK)
FAN
PORT A
PORT B
PORT B
PORT C
PORT C
PORT C
PORT A
VS1
VS2
VS4
VS3
FAN
GREASE
BAFFLE
PRE-
FILTER
FILTER
PACK
FAN
AMBIENT
PRESSURE
PRESSURE
DROP ACROSS
BAFFLE
PRESSURE
DROP ACROSS
PRE-FILTER
PRESSURE
DROP ACROSS
FILTER PACK
PRESSURE
RISE FROM
FAN
AIR FLOW
SWITCH
VS1
SWITCH
VS2
SWITCH
VS4
SWITCH
VS3