Slant/Fin LYNX LX-85 Installation And Operating Instructions Manual page 25

Lynx Model LX-85
PRESSURE DROP
10
FLOW RATE
gpm
Head
8
7.7
(feet w.c.)
5
3.8
2.5
6
0
4
2
0
0
Figure 19. Boiler water side pressure drop
Flow Temp
Rate Rise
(gpm) (˚F)
7.7 20˚
5.0 30˚
3.8* 40˚
Table 2. Recommended pump models for domestic hot water tank piping.
Notes:
* This is the minimum flow rate recommended for the model LX-85 boiler.
** Domestic water 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.
Boiler heat loss
Feet w.c
8.5
3
1.5
0.75
0
2
Boiler Domestic Water
Head Tank Piping
Loss Head Loss **
(Feet w.c.) (Feet w.c.)
8.5' 2.5'
3.0' 2.0'
1.5' 1.5'
LYNX LX-85
4
Flow Rate (GPM)
Available Head Capability Left for Various Model
Circulators to Overcome DHW Tank Head Loss
Taco 0012
Not Recommended
8.0'
10.0'
6 8
(Feet w.c.) ***
Taco 0014 Taco 0011
7.0'
14.0'
17.0'
25
14.0'
22.0'
25.0'