Filter
Top Products
Jaguar Model J-390
26
T
able 2. Jaguar boiler recommended pump models for domestic hot water tank piping.
Flow
Rate
(gpm)
Temp
Rise
(˚F)
Boiler
Head
Loss
(Feet w.c.)
Domestic Water
Tank Piping
Head Loss **
(Feet w.c.)
Available Head Capability for Various Model
Circulators to Overcome DHW Tank Head Loss
(Feet w.c.) ***
Taco 1400-20 Taco 1400-45 Taco 1400-20
▲
28.0 25˚ 16 6.5
Not Recommended
4.5 9.5
23.5 30˚ 11.5 6.0
Not Recommended
11.5 20.5
20.0 35˚ 8.5 5.5 9.0 18.0 32.0
17.5* 40˚ 7.0 5.0 11.5 21.5 35.0
Figure 18. Boiler water side pressure drop
PRESSURE DROP
FLOW RATE
Boiler heat los
ORIGINAL
gpm Feet w. c DATA
28 16 14.5 3
23.4 11.77 11.77
20.04 9 8.77
17.55 7.38 7. 38
14.04 5.3 5.3
11.7 4.2 3.46
0
00
column modified
8
/25/2007
JAGUAR
0
5
10
15
20
0 5 10 15 20 25 30
F
low Rate (GPM)
Head
(feet w.c.)
Notes:
* This is the minimum flow rate recommended for Jaguar boiler.
**
Domestic w
ater tank piping head is based on 1” inside diameter piping and full port valves.
*** Refer to the DHW Tank Manufacturer’s water flow rate requirements and associated pressure drop head loss, to select
the appropriate circulator.
▲ If 2 circulators are specified, they must be piped in series in order to provide the head capacity shown. Power to
circulator(s) must be supplied through an appropr
iate relay to protect the boiler control’s fuse.
(2 in series)