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Benchmark with Edge [I]: Operation-Maintenance Manual
SECTION 5
– SAFETY DEVICE TESTING
OMM-0145_A99
• GF-218 • 9/18/2019 Technical Support • (800) 526-0288 • Mon-Fri, 8 am - 5 pm EST Page
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of
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5.8 AIR FLOW FAULT TESTS - BLOWER PROOF & BLOCKED INLET
SWITCHES
These tests check the operation of the
Blower Proof
switch
and Blocked Inlet
switch shown in
Figure 5-6a, 5-6b and 5-6c.
5.8.1
Blower Proof Switch Test
Figure 5-6a: Blower Proof & Blocked Inlet Switch Locations
– BMK1500 – 4000
Figure 5-6b: Blower Proof & Blocked Inlet Switch Locations
– BMK750 &1000
BLOWER
PROOF
SWITCH
BLOCKED
INLET
SWITCH
SSOV
MANUAL
SHUT-OFF
VALVE
BLOWER PROOF
SWITCH
BLOCKED
INLET SWITCH
MANUAL
SHUT-OFF
VALVE