LP-314 Rev. 012 Rel. 003 Date 9.27.19
30
It is of extreme importance that this unit be properly grounded. It
is very important that the building system ground is inspected by a
qualified electrician prior to making this connection. Electrical power
must only be turned on when the appliance is completely filled
with cold water. Failure to follow these instructions could result in
component or product failure, serious injury, or death.
Label all wires prior to disconnecting them when servicing the
appliance. Wiring errors can cause improper and dangerous
operation. Failure to follow these instructions may result in property
damage or personal injury.
D. Alarm Connections
The control includes an alarm output. This circuit is rated at 3 amps at
120 volts. This contact can be used to activate an alarm light or bell
or notify a building management system if the appliance goes into a
lockout condition.
E. Optional 0-10 Volt Building Control Signal
A signal from a building management system may be connected to
the appliance to enable remote control. This signal should be a 0-10
volt positive-going DC signal. When this input is enabled using the
installer menu, a building control system can be used to control the
set point temperature of the appliance. The control interprets the 0-10
volt signal as follows; when the signal is between 0 and 1.5 volts, the
appliance will be in stand-by mode, not firing. When the signal rises
above 1.5 volts, the appliance will ignite. As the signal continues to
rise towards its maximum of 10 volts, the appliance will increase in set
point temperature. See Part 10 for details on the setting of Function 16.
NOTE:
During 0-10V operation, the minimum tank temperature set
point Function 9 (default 68
o
F) will be at the activation input of 1.5
volts. The maximum tank temperature set point value will be at the
input voltage of 10 volts. The maximum tank temperature set point
can be changed by increasing or decreasing Function 2 (Range: 95
o
F
– 160
o
F / Default 119
o
F). Once programmed, the 0-10V feature will
change the set point temperature automatically.
1. Connect a building management system or other auxiliary control
signal to the terminals marked 0-10 VOLT + and 0-10 VOLT – in the
electronics assembly (shown in Figure 22). Caution should be used to
ensure that the 0-10 VOLT + connection does not become connected
to ground.
2. Configuring the appliance for 0-10 volt operation (change only the
functions in the descriptions below):
a. Press and hold
ENTER
for 5 seconds
b. Use
^
and
v
to adjust flashing
000
to code
975
. Press
ENTER
to
enter the menu.
c. Use
>
to scroll to Function 16 to enable/disable 0-10 volt operation.
Press
ENTER
. Use
^
and
v
to adjust display to desired setting (Range:
0 = Off, 2 = On / Default Off).
d. Press and hold
RESET
to save and exit the menu.
An ASSE 1017 thermostatic mixing valve MUST be installed when
using 0-10V or outdoor reset. Failure to do so could result in
substantial property damage, serious injury, or death.
on the exterior surface of the building. It is preferable to mount the
sensor on the north side in an area that will not be affected by direct
sunlight but will be exposed to varying weather conditions. Connect
the outdoor sensor to terminals marked “Outdoor” in Figure 22.
