Installation Manual

When you start using the system, cold
water in the piping must be discharged
before receiving hot water.
Water heater
<Standard>
Water heater
Instant hot
water is
available.
<Recirc>
Hot water is circulated
in the piping.
The system controller
operates these pumps.
Pump
Pump
<Tank recirc>
The system controller
operates these pumps.
Pump
Pump
Hot water
storage
tank
Instant hot
water is
available.
Water heater
Pump
Hot water is circulated
to the tank.
*
These diagrams are for illustration purposes only.
1
2
3
Operation Screen Display Description
Change System Settings.
In the initial settings menu
select “Sys settings”.
1) The “Sys settings” menu will
display several options for
the selected system type.
2) Press the button to
select the system setting
you would like to alter.
1) Use the buttons to turn the
feature on (“yes”) or off (“no”).
2) Press the
button to
select “yes” or “no”.
3) The display will say “Set complete”
once an option is chosen.
* You may use the button to
return to the previous menu at any
time.
List of the Sys settings
Item in the Sys
settings
system type
Yes No
Standard Recirc Tank recirc
Quick staging Available Available Not
Available
Units will stage more rapidly from
heater to heater*
Units will stage more slowly
Pump error check Not
Available
Available Available System will check for ow when
system controller pump terminals are
energized. If no ow is present, it will
display 63 error code
System will not check for pump
operation*
Pump rotation Not
Available
Available Available System will rotate pump 1 and 2
operation
Pump 1 and 2 will operate
simultaneously*
*Factory Default Settings
─12─