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Water connections from the unit to the main return
line can be PVC pipe or flexible pipe approved
for the purpose and, in either case, should be at
least equal in size to the main pool/spa circulation
piping.
4. Shut Off/Diverter valves, preferably three-way
valves which allows for a bypass route, on the
inlet and outlet lines of the HPPH are required if:
•
water flow to the unit will exceed 40gpm
(151lpm) for 2450-4450 models or 80gpm
(303lpm) for 5450-8450 models
•
to protect (completely bypass) the unit from
any harmful chemical treatments (i.e. Acid
wash, back-to-back super chlorinators, stain
treatments, etc.); or
•
to be able to isolate the unit for service/repair
or freeze preparation and still allow pool/spa
circulation to continue
Please refer to the plumbing diagrams, starting on
page 42, for further instruction.
Please note that some municipalities do not
allow the use of a shut off valve on the effluent/
outlet side of any heating equipment, especially
when there is one on the inlet side. These entities
typically instead allow a PVC tee and spring check
valve on the effluent/outlet side. This is allowed by
Raypak and can also double as your protection
from chemical feeders & chlorinators that our
downstream of the unit.
5. Operate the pump and check the system for leaks.
6. Drain plugs are located on each union fitting as
shown in Fig. 6 for draining the system during
winterizing.
Pressure Drop
For system pressure drop information, see Table B.
NOTE: While it is possible to mount the upper union
with the drain plug vertically, the manufacturer has
determined that installing both unions with the drain
plugs facing down as shown in Fig. 6 provides for the
best draining of the system.
CAUTION: When the drain plugs are removed for
draining the system, ensure that they are stored in a
safe place for re-installation when needed to restart
the system.
Fig. 6: Water Connections/Drain Plugs
Flow
(gpm/
lpm)
2450
3450
20/75
2.5
3.4
30/113
6
7
40/151
10
13
50/189
N/A
N/A
60/227
N/A
N/A
70/265
N/A
N/A
80/303
N/A
N/A
Note: Multiply the pressure drop in psi by 2.3067 to yield the
pressure drop in Ft. H
O Head (TDH).
2
HPPH Control Display
The HPPH display is viewable from outside of the
heater. All operation and settings of the HPPH control
are accomplished through the use of the 3 buttons
of the user interface. These buttons are labeled as
follows (see Fig. 7):
•
MENU/SET – Scroll through available menus
and set changed values (MENU)
•
UP – Increase values in adjustible menus
•
DOWN – Decrease values in adjustible
menus
The display uses a 2-line, 16-character backlit Liquid
Crystal Display (LCD) as the method for supplying
information. The backlight is normally off. The backlight
is on for 15 minutes after Power-Up and for 15 minutes
after any button press. Use the LCD to setup and
monitor the operation of your heater.
12
WATER OUT
WATER IN
Pressure Drop
6450/
4450 5450
6450HC
8450HC
3.4
N/A
N/A
7
4
6
13
7
9
N/A
10
10
N/A
11
11
N/A
12
12
N/A
13
13
8450/
N/A
9
9
10
11
12
13
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