Crown Boiler PHNTM399, Installation And Operating Instructions Manual

Page: 38 / 120

38
VI. W
ater Piping and T
rim
C. Standard Installation Requirements (continued)
Table 14A: Recommended T
aco Circulators for 50 ft. Equivalent ft. Near Boiler Piping [Approximately 20 ft.
Straight Pipe, (4) 90° Elbows, and (2) Full Port Ball V
alves]
Boiler Model
Supply & Return
Connection
(in.)
Near Boiler Pipe Size
(in.)
ΔT=35°F
ΔT=30°F
ΔT=25°F
ΔT=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
PHNTM399
1½
2
21.5
6.4
0014
25.1
8.4
0013
30.2
11.5
2400-60
37.7
16.9
2400-70
PHNTM500
1½
2
27.1
7.4
0013
31.7
9.6
2400-60
38.0
13.1
2400-65
47.5
19.1
2400-70
Boiler Model
Supply & Return
Connection
(in.)
Near Boiler
Pipe Size
(in.)
ΔT=35°F
ΔT=30°F
ΔT=25°F
ΔT=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
PHNTM399
1½
2
21.5
6.4
UP26-64F
25.1
8.4
UP26-99F
30.2
11.5
UPS43-100F
,
Spd. 2
37.7
16.9
UPS43-100F
,
Spd. 3
PHNTM500
1½
2
27.1
7.4
UPS43-44FC,
Spd. 3 or UP26-99F
31.7
9.6
UPS26-
150F
, Spd. 2
38.0
13.1
UPS43-100F
,
Spd. 3
47.5
19.1
UP43-1
10F
Table 14B: Recommended Grundfos Circulators for 50 Equivalent ft. Near Boiler Piping [Approximately 20 ft. Straight Pipe, (4) 90° Elbows, and (2) Full Port Ball V
alves]