Vacuum System - Wells WV-4HF Supplemental Service Instructions

VS1
PORT C
PORT C
VS3
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.
VS4
PORT A
PORT B
PORT C
PORT B
VS2
HOOD SECTION - VACUUM SYSTEM
FAN
PORT A
FAN
(AFTER FILTER PACK)
CABINET PORT
(BEFORE FILTER PACK)
GREASE PRE-
BAFFLE FILTER
SWITCH
VS1
SWITCH
VS3
IMPORTANT:
Vacuum switch settings are factory set, and are not
adjustable.
11
PLENUM PORT
FILTER
FAN AIR FLOW
PACK
SWITCH SWITCH
VS2 VS4