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MODU-FIRE® FORCED DRAFT Gas-Fired Boiler Parts/Technical Support
31
6.1.1 Wiring Schematic
F D
LOGIC
Harsco
East Stroudsburg, PA 18301
570-476-7261
www.pkboilers.com
Patterson-Kelley
HEADER
SENSOR
OUTDOOR AIR
SENSOR
ANALOG INPUT
DIRECT DRIVE
4 - 20 mA
+
--
C
U
S
T
O
M
E
R
C
O
N
N
E
C
T
I
O
N
S
ANALOG
OUTPUT
0 - 10 V
START
INTERLOCK
120VAC
OUTDOOR SETPOINT
OVERRIDE
120VAC
PUMP ENABLE
WITH DELAY OFF
DRY CONTACT
ALL LIMIT POINTS
ALARM
DRY CONTACT
FLAME FAILURE
ALARM 120VAC
PILOT DUTY ONLY
START
INTERLOCK
120VAC
#2
BOILER RUN
INDICATOR
DRY CONTACT
SEE INSTALLATION & OWNER'S MANUAL FOR RATINGS AND DESCRIPTIONS
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12
3
4
56
7
8
AUXILIARY LOW
WATER CUTOFF
120VAC