Installation Guide and Manual

11
WARNING
Must flush out water heater for minimum 2 minutes at maximum flow on initial
start-up or after any service work has been performed. Close and open drain valve 3
times to remove any lodged air bubbles. Failure to do so may damage the heater.
Minimum inlet water pressure 35 psi dynamic.
Maximum water pressure not to exceed 150 psi. Recommended operating
pressure is 35 psi.
Use of a pressure regulator recommended.
Water supply inlet piping must be a minimum ¾” pipe diameter and it must be a
dedicated supply line. 1 ¼” minimum pipe diameter on trunk main when part of a
branch system.
The use of di-electric unions must be used on the inlet and outlet ports of the
water heater.
Recommended 40 mesh (1/64” or smaller) Y-strainer be installed in cold water
inlet to prevent debris from entering the water chambers. Blockage caused by
debris may cause element failure. Isolation valves recommended for servicing.
In applications where a long duty cycle is needed (more than 3 hours continuous
run time), or a short duty cycle (less than 30 sec. on time with less than minute off
time) please contact applications department. 1-800-543-6163
Hammer Arrestor: Systems with a large water volume, or long lengths of piping can
be susceptible to water hammer. The use of slow acting valves along with the
installation of a water hammer arrestor is highly recommended on all units. Failure to
install a water hammer arrestor can cause damage to water heater and void
warranty- refer to manufacturer’s installation manual for proper size and installation
location.