Hayward HP50951T Guide D'installation Et D'utilisation page 13

51300002101 RevA
INSTALLATION ABOVE
POOL/SPA SURFACE:
installed less than three (3) feet above the
surface of the pool/spa water, install eyeball
fittings or directional flow fittings on the end
of the return water line to the pool/spa to
create adequate back pressure at the heater
to operate the pressure safety switch when
the pump is running. If the heater is installed
more than three (3) feet above the surface of
the pool/spa water, install a loop as shown in
Figure7 to prevent drainage of water in the
heater during a filter change. For installation
above or below the pool/spa surface, refer to
START UP section for proper pressure
switch setup.
TYPICAL POOL ARRANGEMENT:
Figure8 illustrates a typical pool piping
diagram and layout for the pool equipment.
Also shown is implementation of an optional
Gas or Solar heater system for additional
capacity. Other pool heaters, such as gas-
fired or solar-powered devices must be
installed in a parallel circuit and operated
independently (only one at a time) for your
warranty to be valid.
NOTICE
- Because of the intense
heat that can be generated by gas and
solar units, isolating it with a shut-off
valve and a check valve when gas or
solar heater is in operation protects the
heat pump. Failure to follow the
instructions may result in property
damage.
Notes:
1. Isolate the heat pump from hot
water flow of heating devices such as
gas or solar heater.
2. Install bypass loop for heat pump
unit.
Figure9 illustrates a multiple heater
installation for very large pools with and
without a manual bypass valve.
1. Maintain 4-6ft [1,2-1,8 m] clearance
between the units, 2ft [0,6 m] around
perimeter, and at least 6ft [1,8 m] over
them. Refer to LOCATING THE
HEATER section for more details.
2. Install bypass loops for each unit.
3. Install union style fittings from the heat
pump CONSUMER KIT adjacent to the
unit to facilitate easy service procedures
12
If the heater is
USE ONLY GENUINE REPLACEMENT PARTS
Figure7: Heater Installation Above Pool
Figure8: Typical Plumbing to Pool
Figure9: Multiple Heater System