14 | Installation, Operating, and Maintenance Manual
Rev. 05JUL2016
Media Configuration
The Media Configuration menu (Figure 14) is accessed by selecting
MEDIA from the SETUP menu. The Media Configuration page allows
setting the type and percentage of antifreeze used in the ground
loop system. The TYPE choices are ethanol, methanol, glycol, and
none. The Media inputs only affect the HE/HR calculation.
NOTE: HE/HR is calculated as follows:
HE or HR = ∆T x Flow Rate (U.S. GPM) x Fluid Factor
where: ∆T = temperature difference between EWT and LWT
Fluid factor = adjustment for antifreeze (see appendix F)
Mode Setup
The UPC-GEO’s operating and control mode is set by moving the
cursor to 4) MODE on the SETUP menu (Figure 15) and pressing the
OK button until the desired mode is displayed. Item 1) in the menu
will change to match the MODE. There are three modes available:
1) FLOW, 2) ΔT, and 3) METER. Flow mode provides pump control
and feedback based on the desired flow rate for first and second
stage operation. This mode requires the installation of a Grundfos
VFS sensor. ΔT mode provides pump control and feedback based on
desired differential temperature for heating and cooling operation,
and requires the installation of thermistors. Meter mode provides
a display of flow rate, entering and leaving fluid temperatures, and
HE/HR depending on which sensors are installed. Meter mode does
not provide an output to control the pump(s), and only displays
the Main-2 page.
Lockout Setup
There are three Lockout modes available that provide differing
levels of security to the controller settings: 1) Screen, 2) Parameter,
and 3) None. Screen lockout disables all display screen feedback.
A controller in screen lockout mode will not respond to +, -, or OK
button inputs and will display “PROTECTED” on the screen. Param-
eter lockout prevents access to the SETUP menu but the MAIN and
MAIN-2 pages will be displayed as normal. The default lockout set-
ting of NONE allows access to all the display screens and settings.
The mode is selected by moving the cursor to Item 5) LOCKOUT in
the Setup Menu and pressing the OK button unit the desired mode
is displayed.
Figure 16: Mode Setup
NOTES:
1.
To unlock the UPC-GEO, hold
down the OK button for 10
seconds (software version 3.0
and later) or 30 seconds (pre-
vious versions).
2.
Menu item 6 is only available
for software version 3.0 and
higher.
SETUP MENU
3.100
1) FLOW
2) SENSORS
3) MEDIA
4) MODE: FLOW
5) LOCKOUT: PARAM
6) SIGNAL: PWM
Figure 14: Media Configuration
MEDIA CONFIGURATION
1) TYPE ETHANOL
2) PERCENTAGE 15%
Figure 15: Mode Setup
NOTE: Menu item 6 is only avail-
able for software version 3.0 and
higher.
SETUP MENU
3.100
1) FLOW
2) SENSORS
3) MEDIA
4) MODE: FLOW
5) LOCKOUT: NONE
6) SIGNAL: PWM
