Specifications

which the water ow can be shut off between the heater
outlet and the pool/spa.
Some local codes may also require installation of a
temperature relief valve. Check with your local codes for
requirements in your area. The valve setting should be
in accordance with local codes. The U.S. Product Safety
Commission recommends that the water in the pool does
not exceed 104°F. All temperature and/or pressure relief
valves must be listed by a Nationally Recognized Testing
Lab (NRTL) such as ASME, CSA, UL, or ETL.
A pressure relief valve is not supplied with the
Legacy Model LRZ electronic heater. However, it is
recommended that a pressure relief valve be installed
and may even be required by local codes. Be sure to
check any applicable installation codes in your area to
determine whether a pressure relief valve is required.
See Section 11.2 (Parts List) of this manual for the
appropriate kit part number.
The pressure rating of the valve should be at or
below the lowest working pressure of any component
in the system. The maximum working pressure of this
heater is 75 psi. Any pressure relief valve installed must
be certied or listed as complying with the standard for
Relief Valves For Hot Water Supply Systems (ANSI
Z21.22/CSA 4.4).
Follow these steps to install a pressure relief valve.
1. To protect the threads while drilling, screw the
brass adapter (included with the Jandy PRV kit)
into the blind threaded hole on the top of the inlet/
outlet header.
2. Using the countersink in the center of the blind
hole as a guide, drill a 1/4 inch hole through the
plastic. See Figure 13.
3. Open the hole by reaming it with a 3/8 inch drill
bit.
4. Open the hole again by reaming it with a 1/2 inch
drill bit.
Initially drilling a 1/2" hole without reaming may
cause the bit to "grab" on the plastic. This may
cause personal injury or damage the plastic
header.
CAUTION
Si vous commencez à percer le trou de ½"
sans alésage préalable, la mèche risque de «
mordre » dans le plastique. Vous risquez de vous
blesser ou d’endommager le tuyau collecteur de
plastique.
ATTENTION
5. Remove the brass adapter and clean the cuttings
out of the hole.
6. Install the rubber washer at the bottom of the hole.
See Figure 14.
7. Thread the adapter into the hole and tighten so that
it seals against the rubber washer.
8. With a permanent marker, place a mark on the
adapter so that the mark faces the same direction
as the water connections on the header.
9. Remove the adapter from the hole.
10. Coat the threads of the pressure relief valve (PRV)
with an appropriate metal to metal thread sealant.
11. Install the adapter on the PRV and tighten using
two wrenches. Use the mark made earlier on the
adapter to orient the PRV to the desired direction
in relation to the water connections on the header.
12. Wrap the threads of the adapter with a suitable
teon thread tape.
Figure 13. Drill Hole for Pressure Relief Valve
TEMPORARILY INSTALL
BRASS ADAPTER TO
PROTECT PLASTIC
THREADS
START WITH A 1/4" BIT
THEN OPEN HOLE WITH
A 3/8" BIT THEN OPEN
HOLE WITH A 1/2" BIT
Figure 14. Pressure Relief Valve Installation
RUBBER WASHER
BRASS ADAPTER
PRESSURE RELIEF
VALVE HAND
TIGHTEN ONLY
Page 19
ENGLISH
Jandy
®
Legacy™ Model LRZE Pool/Spa Heater by Zodiac
®
|
Installation and Operation Manual