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ENGLISH
Jandy
®
VersaFlo
™
Integrated Bypass for JXi
™
& JXiQ
™
Pool and Spa Heater | Installation & Operation Manual
2.1.2 Required Equipment
Safety Eyewear Gloves Phillips Screwdriver Flat Screwdriver
2.2 Efficiency
The VersaFlo Integrated Bypass allows for increased
hydraulic efficiency when the heater is not firing.
Whenthe JXi & JXiQ heater is not firing, a flow gate in
the bypass assembly is moved to the bypass position,
allowing the water flow within the heater header to
bypass the heat exchanger and return directly to
the pool. Please note, when in the bypass position a
small amount of water will still flow through the heat
exchanger. When the heater is firing, the flow gate
moves to heat position which directs water through
the heat exchanger. When the heater is turned off, the
bypass will remain in the heat position for approximately
one minute before moving to the bypass position.
When the flow gate is in the bypass position and
water is bypassing the heat exchanger, the head
loss through the heater is significantly reduced as
illustrated in
Figure 1
. To maximize energy savings,
combine with an automation system and a variable
speed filtration pump to reduce pump speed while
flow is bypassing the heater.
Use head loss chart below to determine the best flow
rate or filtration run time to best optimize your water
circulation system.
4.0
5.0
6.0
7.0
8.0
9.0
8.0
10.0
12.0
14.0
16.0
18.0
20.0
0.0
1.0
2.0
3.0
0.0
2.0
4.0
6.0
20 30 40 50 60 70 80 90 100 110
Flow Rate (GPM)
Design Head Loss ( ft Head)
Design Pressure Drop (psi)
JXi/JXiQ 200K BTU Heater
JXi/JXiQ 260K BTU Heater
JXi/JXiQ 400K BTU Heater
JXi/JXiQ VersaFlo
™
Bypass
Figure 1. Head Loss Chart
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