Weil-McLain ULTRA 155 - Manual (Page 2)

Part number 550-100-024/0905
Gas-Fired Water Boiler — Conversion Instructions for Over 5500 Feet
Figure 1 Ultra boiler digital display
1. Minimum fan speed (parameter 17) and ignition fan speed
(parameter 19) MUST be changed for operation at altitudes
over 5,500 feet.
2. Change these parameters using following instructions,
or load the correct high altitude parameter file from the
Ultra Interface Kit CD. If using Gascom software to
revise the parameters, use ONLY the values given in Table
1.
With the six buttons on the front of the boiler and the proper
code, the boiler can be modified using the digital display
(Figure 1). Perform the following steps with the boiler
powered and in a standby condition.
3. On the boiler display in [STBY] mode, press and hold the
button. While holding the "Step" button press
and hold the button. Hold both buttons together
for several seconds until "Code" is displayed. Release
buttons. “Code” stays on the display.
NOTE: If [CODE] is not displayed after several seconds
release the buttons and press the button
several times to return to [STBY]. Repeat step
two again.
4. Press the button once.
5. Adjust the number displayed to [C - 05] by using the
and buttons.
6. Press the "Store" button.
The Ultra control module will automatically
exit code mode after 10 minutes of no
activity.
Reprogram control module – Natural gas and propane boilers
Table 1 Default parameter settings (as they appear in Gascom software and Boiler display) —
DO NOT change any parameter unless the application requires special settings
7. Press the mode button several times until [PARA] is
displayed.
8. Press the button several times until [P-XX] is
displayed. The XX represents the parameter that will be
changed. The parameter’s value will then be displayed.
9. Use the or buttons to adjust to the desired value.
Do not set the value of parameters 17 or 19
higher than the values in Table 1.
10. Press the button. Steps 8 through 10 can now be
repeated for additional parameter changes. Or continue
to step 11 to exit.
11. Press the button until [STBY] is displayed to exit.