Lochinvar GAS HEATER FOR COMMERICAL POOL APPLICATIONS - Manual (Page 59)

Advanced settings:
By pressing the Select key in the View mode while viewing the
Boiler
ΔT reading (or the Supply Sensor temperature if the
Pool Supply sensor is connected), the Boiler On hours will be
displayed, indicated by the text BOIL ON in the display. This
is the total number of hours the pool heater has been heating
the pool.
By pressing the Select key in the Adjust mode while viewing
the Pool DIFF setting, the Boiler Inlet Minimum setting will be
displayed, indicated by the text BOIL IN MIN in the display.
The control will adjust the position of the 3-way automatic
bypass valve in order to maintain the inlet temperature at this
setting. The default is 130°F.
By pressing the Select key again, the Boiler Maximum setting
will be displayed, indicated by the text BOIL MAX in the
display. The control will shut off the heater whenever the
outlet temperature from the heater exceeds this setting. The
default value is 200°F.
If a Pool Supply sensor is connected, then by pressing the
Select key again, the Supply Target setting will be displayed,
indicated by the text SUP TARGET in the display. The
control will shut off the heater whenever the pool supply
temperature exceeds this setting. The default value is 100°F.
If a Pool Supply sensor is connected, then by pressing the
Select key again, the Supply Differential setting will be
displayed, indicated by the text SUP DIFF in the display.
After the control has turned off the heater because the pool
supply temperature exceeded the Pool Supply setting, the pool
supply temperature must drop by this amount before the
control will allow the heater to start up again. The default
value is 20°F.
By pressing the Select key again, the Valve Speed setting will
be displayed, indicated by the arrow pointing to the text
SPEED on the overlay. This setting is used to control the
responsiveness of the 3-way automatic bypass valve, and
should only be adjusted under the direction of Lochinvar’s
Technical Services personnel. The default setting is 20
seconds.
By pressing the Select key again, the pump Delay setting is
displayed, indicated by the DLY on the display. This is the
time that the heater pump will continue to run after the control
turns the heater off. The default value is 20 minutes.
59
User Advanced Item Description Default Range
X X TARGET Pool target temperature 85°F OFF, 55 to 105°F
X X DIFF Differential setting for return sensor 4°F 1 to 20°F
X BOIL IN MIN Minimum inlet water temperature 130°F 130 to 150°F
X BOIL MAX Maximum outlet temperature 200°F 120 to 200°F
X(*) SUP TARGET Supply water temperature 100°F OFF, 70 to 110°F
X(*) SUP DIFF Differential setting for supply sensor 20°F 2 to 20°F
X MOTOR SPEED Setting other than 20 may void warranty 20 sec 15 to 30 sec
X DLY Time at which purging stops 20 sec ON, 0:20 to 9:55 min
X BOIL ON *Accumulated runtime of unit 0 hr 0 to 999 hr
X X F/C Units Set temperature at °F or °C °F °C or °F
User Settings: Rear dip switch set to “1” position.
Advanced Settings: Rear dip switch set to “0” position.
(*) If equipped with optional pool supply sensor.
Adjust Menu Settings for Operating Modes
Appendix B
View Menu Item Menu Description
Current Temperature Pool return sensor temperature
TARGET Set point Pool temperature set point
BOIL IN Inlet sensor temperature
BOIL OUT Outlet sensor temperature
BOIL ΔT Heater differential temperature
SUP (If equipped pool supply sensor) Pool supply sensor temperature
BOIL ON (Advanced switch set to “0”) Accumulated runtime hours
View Menu Information
Installation and Service Manual