USE ONLY HAYWARD GENUINE REPLACEMENT PARTS
7
Factory Installed Pressure Switch
The function of the pressure switch (shown on the right) is to shut the spa heater off if the pump is turned off or if
the 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 pres-
sure switch that is adjustable from one to five pounds. The switch is factory set at 3 psi ± ¾ psi.
Installation Below Spa Surface
CAUTION - 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 adjustment 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
WARNING - No valves or other obstructions are to be installed between the heater outlet and the return to the spa. See Water Piping on page 5.
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 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 below to prevent drainage of water in heater during filter
change.
2.3 FT.
= 1 LB.
4.6 FT.
= 2 LB.
6.9 FT.
= 3 LB.
9.2 FT.
= 4 LB.
11.5 FT.
= 5 LB.
WATER LEVEL
HEATER
INSTALLATION
LEVELS
1 FT. HEIGHT = 0.4331 LBS
1 LB. = 2.31 FT. HEIGHT
HIGHER THAN
TOP OF HEATER
WATER LEVEL
HEATER
Installation Below Spa Surface Installation Above Spa Surface
To Next Page
Loading...
Need help?
General
