Water Piping; Automatic Chlorinators And Chemical Feeders - Hayward HP50951T Guide D'installation Et D'utilisation

51300002101 RevA
ANCHORING:
The heater is equipped for installation of anchoring screws when required by local codes. Follow all
relevant Local, State and National requirements regarding wind load anchoring. When anchoring is required to secure the
heat pump to concrete pad, use the specified hardware shown in the figure4. To complete the installation use the
following;
Anchor Clamps
Concrete tapping screws
Fender washers

WATER PIPING

General
: The heater is for use with pool and spa/hot tub water furnished by municipal water distribution systems only. The use of
mineral water, seawater (PPM>5000), or other non-potable waters will invalidate the warranty. These heat pumps are designed for
nominal water flows through the condenser. See specifications for minimum and maximum flow requirements to ensure sufficient
heat removal and water erosion of heat exchanger tubing. The minimum flow rate is to be calculated or measured with the in-floor
cleaning system in use, if the pool is so equipped, as well as any other jets or other demands on the water flow. Flow rates above
specified maximum will create excessive pressure drop through the condenser and require unnecessarily high pumping energy.
Bypass valve setting may be accomplished by temporarily installing a flow meter on the outlet line of the heater. Then adjust the
manual bypass valve until the flowrate through the heater is within the flow rate range specified. Once the manual bypass valve is
set, note the position and remove the valve handle to prevent accidental adjustment. Failure to install an External Bypass Assembly
with flow rates above the specified maximum will void the warranty. Do not install any restriction in the water pipe between the
heater outlet and the pool with the exception of; three-way switching valve, in-line chlorinator and/or chlorinator check valve as
shown in figure5 below.

AUTOMATIC CHLORINATORS AND CHEMICAL FEEDERS:

from the heater in the pool return line and at a lower elevation than the heater as shown in Figure5. Install a separate positive seal
corrosion resistant check valve between the heater outlet and the chlorinator to prevent highly concentrated sanitizer from back
siphoning into the heater. Back siphoning may occur when the pump is shut off and a pressure differential is created.
10
(FACTORY SUPPLIED; qty (8))
(FIELD SUPPLIED; Tapcons® stainless steel, qty (8), size to be ¼in diameter
with a minimum length of 1-1/2in)
(FIELD SUPPLIED; stainless steel, qty (8), size to be 1-1/2in)
Figure4: Equipment Pad and Anchoring
USE ONLY GENUINE REPLACEMENT PARTS
If used, a chlorinator must be installed downstream