Install Instructions

77
107750-01 - 9/17
IX. System Piping (continued)
Table 9.5a: Recommended Taco Circulators for 60 Equivalent ft. Boiler Loop Piping
Boiler
Model
Minimum
Pipe Size
(in.)
∆T = 35°F ∆T = 30°F ∆T = 25°F ∆T = 20°F
Flow
(GPM)
Boiler &
Piping Head
Loss
(ft)
Circulator
Model
Flow
(GPM)
Boiler &
Piping Head
Loss
(ft)
Circulator
Model
Flow
(GPM)
Boiler &
Piping Head
Loss
(ft)
Circulator
Model
Flow
(GPM)
Boiler &
Piping
Head Loss
(ft)
Circulator
Model
ASPN-320 1 1/2 17.0 1.8 0010 19.8 2.4 0010 23.8 3.5 0014 29.8 5.4 2400-60
ASPN-399 1 1/2 21.2 2.8 0010 24.7 3.8 0014 29.7 5.4 2400-60 37.1 8.2 2400-65
Table 9.5b: Recommended Grundfos Circulators for 60 Equivalent ft. Boiler Loop Piping
Boiler
Model
Minimum
Pipe
Size
(in.)
∆T = 35°F ∆T = 30°F ∆T = 25°F ∆T = 20°F
Flow
(GPM)
Boiler &
Piping
Head Loss
(ft)
Circulator
Model
Flow
(GPM)
Boiler &
Piping
Head Loss
(ft)
Circulator
Model
Flow
(GPM)
Boiler &
Piping
Head Loss
(ft)
Circulator
Model
Flow
(GPM)
Boiler &
Piping
Head Loss
(ft)
Circulator
Model
ASPN-320 1 1/2 17.0 1.8
UPS26-99FC
(Spd. 2)
MAGNA1 32-
60F
19.8 2.4
UPS26-99FC
(Spd. 2)
MAGNA1 32-
60F
23.8 3.5
UPS26-99FC
(Spd. 2)
MAGNA1 32-
60F
29.8 5.4
UPS26-150F
(Spd. 2)
MAGNA1 32-
60F
ASPN-399 1 1/2 21.2 2.8
UPS26-99FC
(Spd. 2)
MAGNA1 32-
60F
24.7 3.8
UPS26-99FC
(Spd. 3)
MAGNA1 32-
60F
29.7 5.4
UPS26-150F
(Spd. 2)
MAGNA1 32-
60F
37.1 8.2
UPS26-150F
(Spd. 3)
MAGNA1 40-
80F