Installation Guide

ManualsBrandsTaco Comfort Solutions ManualsBoilers3/4 in. NPT 120-VAC Probe Low Water Cutoff Auto Reset

Wiring Taco 24VAC Electric Water Feeder to Taco LF Series 24VAC Low Water Cutoff

or 24VAC McDonnell & Miller or Hydrolevel Low Water Cutoffs

aco L F x 0 2 4 x

a c o E W F 0 2 4

H N G

B UR NE R

C IRC U IT

H O T

N E U T R A L

HNL W

4 V AC

C IR C U IT

21P

Hyd r ole v e l

00, 50 0, 60 0 , & 7 0 0

NHB

M cD o n n e l l & M il l er

S-80 2 /8 5 2-24

N O T E : Wiring s hown only for control

an d burner circuits of the s ame

voltage. S ome terminal designations

ar e n ot in their actu al order on the

LW COs.

** May be factory installed on

some LWCOs

INSTALLED

JUMPER **

COMNO

Wiring Taco 120VAC Electric Water Feeder to Taco LF Series 120VAC Low Water Cutoff

or 120VAC McDonnell & Miller or Hydrolevel Low Water Cutoffs

NC NO H N GND P

B UR NE R

C IRC U IT

H O T

N E U T R A L

HNLW

120 V AC

C IR C U IT

NHWB

McDonnell & Mill er

PS-80 1 /8 5 1-12 0

w /R e d & G r een L E D s

1 245

McDonnell & Mill er

PS-80 1 /8 5 1-12 0 w /Red &

Am be r LE Ds, S eries 7 5 0

21P2 A

Hyd r ole v e l

450 , 55 0, 65 0 , & 7 5 0

Tac o L F x 1 2 0 x

T a c o E W F 1 2 0

N O T E :

iring shown only for control