Specifications

49
TABLE 9.6: PIPE AND CIRCULATOR SIZING FOR INDIRECT WATER HEATER LOOP
BOILER
MODEL
(a) (b) (c) (d) (e) (f)
PIPE

SIZE
FLOW
MAX.
I.W.H.
PRESSURE
DROP
ALLIANCE™
INDIRECTW
ATER
HEATERS
CIRCULATOR
MODEL
I.W.H.LOOPMAX
EQUIVALENT
LENGTH
(in
NPT) (GPM)
(ft
HEAD)
(ft)
FCM070 1 6.0 1.7
AL27SL(*)
AL35SL(*)
AL70SL(*)
AL119SL(*)
Taco008 102
FCM090 1 8.0 3.0
AL27SL,
AL35SL
AL50SL(*)
AL70SL(*)
AL119SL(*)
Taco0014 50
FCM090 1 8.0 3.0
AL27SL,
AL35SL
AL50SL(*)
AL70SL(*)
AL119SL(*)
Taco0013(Note #3) 190
FCM120 1 8.0 3.0
AL27SL
AL35SL
AL50SL
AL70SL
AL1
19SL
Taco0014 71
FCM120 1 8.0 5.0
AL27SL,
AL35SL
AL50SL,AL70SL
AL119SL
(Note #2)
Taco0014 45
FCM120 1 8.0 5.0
AL27SL,
AL35SL
AL50SL,AL70SL
AL119SL
(Note #2)
Taco0013(Note #3) 185
NOTES:
1) Indirectwaterheaterswithanasterisk(*)willnotachievetheircatalogratingduetoinadequateboilerwaterowand/orinadequateboiler
output.
2) Whenusedwithanindirectheaterhavingapressuredroplessthan3.0ftofhead,theTaco0013canbeinstalledwithupto211equivalentftof
1”pipe.
3) UseisolationrelaybetweenTaco0013andFCM-seeFigure10.3
TABLE 9.7: FITTING EQUIVALENT LENGTHS
FITTING
PIPESIZE EQUIVALENTLENGTH(ft)
90ELBOW 1 2.75
TURN
INTEE 1 5.50
RUN
OFTEE 1 1.75
SWING
CHECK 1 7.00
GA
TEVALVE 1 0.60