Section 5. Water Connections; Pump Sizing - Jandy JXi 200 Installation And Operation Manual

Jandy , JXi Gas-Fired Pool & Spa Heater
® ™
Section 6. Water Connections
Install pool system components with connections as
illustrated in Figure 10. Any configuration other than
as illustrated in Figure 10
the water pressure switch. Locating the heater above or
below the pool water surface can also affect operation of
the water pressure switch.
FILTER
HEATER
CHECK VALVE
(Always install a corrosion resistant check
valve when any sanitation equipment,
including erosion feeders and salt
chlorination systems are installed,
see section 5.4
for more details)
SPA RETURN
Figure 10. Typical Water Piping Configuration
6.1

Pump Sizing

For ASME heater models JXi400NC, JXi400PC, JXi260NC and JXi260PC please go to "Appendix A. ASME® Header" on page 49.
All JXi heaters utilize an internal bypass mechanism and
thermal regulator valve (TRV) to accommodate flow rates
delivered to the heater from a minimum of 30 gallons per
minute (gpm) to a maximum flow of 100 gpm.
CAUTION
The system water pump must be capable of providing no less than
30 gpm of flow through the heater. Flow rates at less than 30 gpm
may cause nuisance operation causing damage to the heater or
causing the heater to turn off.
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Installation & Operation Manual
can affect the operation of
a.
POOL
RETURN
NOTE: When pool equipment is located below the pool surface,
Zodiac Pool Systems, Inc. is not responsible for any large scale
water loss, flooding or damage caused by a leak.
The pool equipment must be protected from back-siphoning of wa-
ter. If there is any chance of back-siphoning, provide a check valve
between the pool and the filter pump inlet.
POOL/SPA
PUMP
3 WAY VALVE
SKIMMER
MANUAL BY-PASS DETAIL:
USE WHEN FILTRATION RATE
EXCEEDS 100 GPM
MODEL
JXI 200
JXI 260
JXI 400
Table 4. Recommended Flow Rate Adjustment
ENGLISH
CAUTION
SPA DRAIN
(Suction Outlet)
a.
MANUAL BYPASS VALVE
MIN GPM (LPM) MAX GPM (LPM)
30 (114) 100 (379)
30 (114) 100 (379)
30 (114) 100 (379)
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