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Element
Operation and Maintenance
L-OMM-0003_A
• 10/8/2021 Technical Support • (800) 526-0288 • Mon-Fri, 8 am - 5 pm EST Page
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11.5.14 Potentiometer (Adjusting the Setpoint)
The Platform Ignition Module (PIM) will continue to operate the Element at a 120 degree internal
factory setpoint should the touch screen control fail, or communication between the two devices
is interrupted. This internal setpoint can be adjusted using the potentiometer to maintain a
different operating temperature under these circumstances if desired.
To Adjust The PIM Potentiometer Set-point:
1. Press and hold the
HOME
button for 3 seconds to display the SETUP Menu.
2. Use the
NEXT ITEM
or
ITEM BACK
buttons to navigate to the
TOOLBOX
menu. Press
ENTER
to display the
ACCESS
menu.
3. Use the
UP
or
DOWN
arrow buttons to select the
INSTALLER
setting.
4. Press the
HOME
button to return to the
TOOLBOX
menu, then use the
NEXT ITEM
or
ITEM
BACK
buttons
to
navigate to the
SOURCE
menu.
5. Press
ENTER
to
enter the source menu and use the
NEXT ITEM
or
ITEM BACK
buttons to
navigate to the
OPERATOR
screen to display the potentiometer set-point.
6. Open the hinged upper panel of the control enclosure and locate the potentiometer on the
PIM Ignition Module.
7. Use a small screwdriver to manually adjust the PIM Potentiometer to a desired stand-alone
setpoint temperature as you view the adjusted temperature setting in the
OPERATOR
screen.
8. Exit the menu by pressing the
HOME
button.
11.6 Sequence of Operation
Incoming 120VAC:
a.
Full time power to the Fuse
b.
Full time power to the Main Control Switch
Power On
- When the main control switch is turned on:
a.
120V is applied to the step-down transformer (24V)
b.
120V is applied to the L.W.C.O. terminal L1 (if used)
c.
24V and 120V is applied to the Platform Ignition Module (PIM). The circulator, blower and
HSI circuits are 120V.
d.
The PIM performs a processor and memory self-test to insure proper operation. The PIM
confirms the presence of a valid ID card which matches the configuration previously stored
in memory. If the valid ID card is not present, the PIM generates a diagnostic fault. The
non-volatile memory is checked for an active lockout condition. A lockout indicates the
previous attempt to light was unsuccessful, or a hi-limit or other system fault occurred. The
PIM stays in lockout until a manual reset is performed.
Control Device Pre-check
– The following control circuits are checked for closer before
the control system will initiate a Call for Heat.
a.
The PIM continuously monitors the flame status to verify no flame is present during
Standby. If an erroneous flame is detected, the PIM generates a flame error fault.