Hayward Electric Spa Heater Spa Heaters - Page 5

Installation, below, surface, above, speed

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Figure 6 0 • PSI 5 filter gets so dirty that it restricts the flow of the water to the heater. Do not adjust the switch unless the heater is installed more than two (2) feet below surface of spa water. If adjustment is necessary, follow the procedure as outlined. Refer to the diagrams for approximate settings for various heights. Your heater is equipped with a pressure switch that is adjustable from one to five pounds. The switch is factory set at 3 psi ± 3/4 psi. Installation below spa surface: ACAUTION: Do not remove any access covers from the C-SPA-XI until all sources of electrical power to the unit have been turned off or disconnected. Do not make any repairs or pressure switch adjustments with the power on. 1. Clean filter thoroughly. 2. Set heater thermostat to highest setting. 3 Start filter pump. Make sure all air is out of water lines and complete system is full of water. 4. Turn filter pump and power source off, adjust pressure switch control. Signal light on heater will indicate off when power is restored. See caution above. 5. Check pressure switch function by turning filter pump on and off causing heater to respond on or off. If heater is installed beyond pressure limits, a flow switch must be installed in water line to heater. Installation above spa surface: 1. If heater is installed less than three (3) feet above the surface of the spa water, install eyeball fittings or directional flow fittings on the end of the return water line to the spa to create adequate back pressure at the heater to operate the pressure safety switch when filter pump is running. 2. If heater is installed more than three (3) feet above surface of spa water, install as shown above to prevent drainage of water in heater during filter change. AWARNING: No valves or other obstructions are to be installed between the heater outlet and the return to the spa. See water piping on page 3. Two speed pump: In some cases, the pressure from a two speed pump is below the one pound minimum required to operate the heater. This is apparent when the pressure switch cannot be further adjusted. In these cases the pump must be run at high speed to operate heater. If your pump and piping arrangements are such that the required one pound minimum pressure cannot be obtained, do not attempt to operate the heater. Correct the installation. Installation Below Pool Surface Figure 7 AAA 2.3 FT. =1LB. WATER LEVEL 4.6 FT. =2 LB. 6.9 FT. = 3 LB. 9.2 FT. = 4 LB. HEATER INSTALLATION LEVELS 11.5 FT. = 5 LB. 1 FT. HEIGHT = 0.4331LBS. 1 LB. = 2.31FT. HEIGHT Installation Above Pool Surface. Figure 8 HIGHER THAN TOP OF HEATER WATER LEVEL HEATER 5

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Figure
6
•
PSI
5
0
filter
gets
so
dirty
that
it
restricts
the
flow
of
the
water
to
the
heater.
Do
not
adjust
the
switch
unless
the
heater
is
installed
more
than
two
(2)
feet
below
surface
of
spa
water.
If
adjustment
is
necessary,
follow
the
procedure
as
outlined.
Refer
to
the
dia-
grams
for
approximate
settings
for
various
heights.
Your
heater
is
equipped
with
a
pressure
switch
that
is
adjustable
from
one
to
five
pounds.
The
switch
is
factory
set
at
3
psi
±
3/4
psi.
Installation
below
spa
surface:
ACAUTION:
Do
not
remove
any
access
covers
from
the
C
-SPA
-XI
until
all
sources
of
electrical
power
to
the
unit
have
been
turned
off
or
discon-
nected.
Do
not
make
any
repairs
or
pressure
switch
adjustments
with
the
power
on.
1.
Clean
filter
thoroughly.
2.
Set
heater
thermostat
to
highest
setting.
3
Start
filter
pump.
Make
sure
all
air
is
out
of
water
lines
and
complete
system
is
full
of
water.
4.
Turn
filter
pump
and
power
source
off,
adjust
pressure
switch
control.
Signal
light
on
heater
will
indicate
off
when
power
is
restored.
See
caution
above.
5.
Check
pressure
switch
function
by
turning
filter
pump
on
and
off
causing
heater
to
respond
on
or
off.
If
heater
is
installed
beyond
pressure
limits,
a
flow
switch
must
be
installed
in
water
line
to
heater.
Installation
above
spa
surface:
1.
If
heater
is
installed
less
than
three
(3)
feet
above
the
surface
of
the
spa
water,
install
eyeball
fittings
or
directional
flow
fittings
on
the
end
of
the
return
water
line
to
the
spa
to
create
adequate
back
pressure
at
the
heater
to
operate
the
pressure
safety
switch
when
filter
pump
is
running.
2.
If
heater
is
installed
more
than
three
(3)
feet
above
surface
of
spa
water,
install
as
shown
above
to
prevent
drainage
of
water
in
heater
during
filter
change.
AWARNING:
No
valves
or
other
obstructions
are
to
be
installed
between
the
heater
outlet
and
the
return
to
the
spa.
See
water
piping
on
page
3.
Two
speed
pump:
In
some
cases,
the
pressure
from
a
two
speed
pump
is
below
the
one
pound
minimum
required
to
operate
the
heater.
This
is
apparent
when
the
pressure
switch
cannot
be
further
adjusted.
In
these
cases
the
pump
must
be
run
at
high
speed
to
operate
heater.
If
your
pump
and
piping
arrange-
ments
are
such
that
the
required
one
pound
mini-
mum
pressure
cannot
be
obtained,
do
not
attempt
to
operate
the
heater.
Correct
the
installation.
Installation
Below
Pool
Surface
Figure
7
AAA
2.3
FT.
=1
LB.
4.6
FT.
=2
LB.
6.9
FT.
=
3
LB.
9.2
FT.
=
4
LB.
WATER
LEVEL
HEATER
INSTALLATION
LEVELS
11.5
FT.
=
5
LB.
1
FT.
HEIGHT
=
0.4331
LBS.
1
LB.
=
2.31
FT.
HEIGHT
Installation
Above
Pool
Surface.
Figure
8
HIGHER
THAN
TOP
OF
HEATER
WATER
LEVEL
HEATER
5