15
Flow GPM
(lpm)
Pressure Drop
Ft. of Head (m of Head)
207A
267A
337A
407A
20 (75)
TBD
30 (113)
TBD
TBD
40 (151)
TBD
TBD
TBD
TBD
50 (189)
TBD
TBD
TBD
TBD
60 (227)
TBD
TBD
TBD
TBD
70 (265)
TBD
TBD
TBD
TBD
80 (303)
TBD
TBD
TBD
TBD
90 (340)
TBD
TBD
TBD
TBD
100 (378)
TBD
TBD
TBD
TBD
Table L. Brass Heat Exchanger Pressure Drop - ASME
Models - UG Fully Open
NOTE:
Table capacity is based on Schedule 40 black
iron pipe. For capacity using other material, consult
local codes.
Brass Headers (ASME Models)
Heater must be located so that any water leaks will not
damage the structure of adjacent area. Before attaching
the ProTek Shield Adapter to the inlet connection and the
2-inch unions, make sure the O-rings are properly seated
in the grooves. Use Aqualube or equivalent non-petroleum-
based lubricant on the O-ring.
Hand tighten the unions
.
Glue PVC piping directly to the unions.
F10664
HEADER
O-RING
HEADER FLANGE
(CPVC)
HEADER FLANGE NUT
(CPVC)
PLUMBING
PROTEK SHIELD
ASSEMBLY
Figure 18. Inlet/Outlet Header – Brass
NOTE:
Some jurisdictions require the addition of a flow
switch on ASME installations. Kit # TBD can be ordered
that will allow a standard ASME unit to comply with the
code requirements.
ProTek Shield Assembly
This heater is equipped with a ProTek Shield Assembly
(located under the inlet connection on polymer headers
and in the ProTek Shield Adapter assembly shipped loose
in the accessory carton for field installation on brass ASME
headers).
This component provides protection to the heat exchanger
against galvanic corrosion, when properly bonded to the
heat exchanger. It should be replaced when the weight of
the ProTek Shield is reduced to about 40% of the original
weight (1.46 #).
F10715
Figure 19. ProTek Shield Assy
Polymer Headers (Residential Models)
Before attaching the 2-inch unions to the inlet/outlet
header, make sure the O-rings are properly seated in
the grooves. Use Aqualube or equivalent non-petroleum-
based lubricant on the O-ring.
Hand tighten the unions
.
Glue PVC piping directly to the unions.
F10641
O-RING
HEADER FLANGE
(CPVC)
HEADER FLANGE NUT
(CPVC)
PROTEK
SHIELD
ASSY
PLUMBING
Figure 17. Inlet/Outlet Header – Polymer
High temperature CPVC header flanges and header
flange nuts are provided. If there is any possibility of back-
siphoning when the pump stops, it is suggested that a
check valve (or valves) also be installed in the system.
6000.592A_PoolSpa_LoNOx.indd 15
11/22/2019 10:44:42 AM