Watts AERCO Benchmark BMK5000 User Manual

Benchmark with Edge [I]: Operation-Maintenance Manual
SECTION 3 - START SEQUENCE
OMM-0145_D • GF-218 • 11/2/2020 Technical Support • (800) 526-0288 • Mon-Fri, 8 am - 5 pm EST Page 38 of 213
BMK5000 & 6000 Function Timing Chart For Proved Pilot Control System
Operating State
Pre-purge
PFEP
MFEP
Standby
T = 0
T = 30
T = 37
T = 44
Run
Component
PFEP
MFEP
Edge [i] Controller
Scanner Power
Ignition Power
SSOV Power
Pilot Valve Closed
Pilot Valve Open
Ignition Transformer Off
Ignition Transformer On
UV Scanner Powered
UV Scanner "Ignored"
UV Scanner In Use
Relay 1 Coil
Relay 1 C-NC
Relay 1 C-NO
Relay 2 Coil Power from R1
Relay 2 Coil Power from SKP 15 POC
Relay 2 C-NC
Relay 2 C-NO
SKP15 Power from R1 Contacts
SKP15 Power from R2 contact and POC
C-NO
SKP15 Proof of Closure C-NC
SKP15 Proof of Closure C-NO
SKP25
Power through R1
Power through R2 and AUX
Proof of Closure C-NC
Proof of Closure C-NO

Watts AERCO Benchmark BMK5000 Specifications

General

Brand	Watts
Model	AERCO Benchmark BMK5000
Category	Boiler
Language	English