6
USER LOCK CODE OPTION [ULC]:
Heat pumps are shipped from the factory with the [ULC] option disabled. En-
abling the [ULC] function permits the heat pump owner to restrict access to the
unit’s controls. With the [ULC] function enabled, unless the correct ULC code
number is entered, changes to Level-1 programming are not possible. (I.e.: Alter-
ing temperature set points, Pool/Spa selection, C/F display changes, etc., will not
be possible). The [ULC] option can be thought of as an electronic lockable cover
for the controls.
A. SELECTING ULC OPTION:
1) Press either the UP or DOWN ARROW keys; if “LOC” is momentarily dis-
played followed by “0”, the ULC feature is enabled. If “0” displays proceed
to “6)” of this section; otherwise, see number “2,” below.
2) Simultaneously press and hold both the [UP ARROW] and [DOWN ARROW]
keys until [CF1] (Celsius / Fahrenheit) code appears.
3) Press the [POOL/SPA] key once to display [ULC].
4) With [ULC] displayed, pressing either the Up or Down Arrow key will display
either “1” or “0”. Selecting “0” will allow the keypad to remain unlocked.
Selecting “1” will enable the User Lock Code option. Then, to enter a lock
code number, press the [POOL/SPA] key once to display [ELC] (Enter Lock
Code).
5) With [ELC] displayed, use the Up or Down arrow keys to select a lock code.
The code can be any number from “00” to “99”. The factory set lock code is
“0”. Not pressing any buttons for 15-seconds will allow the controller to save
the selection and return to the normal operating mode. Pressing the {POOL/
SPA] key will also save the selection, and will step the controller to the next
menu parameter: [CFO] (Call Flex Options).
6) Once the ULC option has been enabled, pressing any key will momentarily
display “LOC” followed by “0” (prompting the entry of the correct lock code
number). To gain access to the controller:
a. Using the [UP ARROW] key, scroll to the correct lock code number,
then;
b. Press the [POOL/SPA] key… Current water temperature will be dis-
played… Control setting can now be viewed or changed as desired.
c. After a period of approximately four (4) minutes, during which time no
buttons have been pressed, the controller will automatically return to the
locked mode. Provided ULC selection is set to “1,” the controller will
always fail-safe in the locked mode.
