Weil-McLain Aqua Balance WMB-155 Manual page 98

W
TM
AquaBalance
34 Troubleshooting
Figure 125
"In" - Inquiry mode (continued)
P10
Actual water pressure (psi)
P11
Actual PWM modulating Pump (%)
P12
Actual Step of Triac mod. mode (Num)
F13
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• In case of Water pressure switch: "00" means open, "20" means closed.
• In case of sensors in short circuit or open circuit, the display visualizes: "--".
• Actual Blower Speed is showed always in terms of Hz.
• Actual water flow rate is showed always in terms of real l/min *10 and it has to be visualized also with the input switch
contact open. Example: real 1.5 l/min has to be visualized as 15.
• Actual Flame Current is showed always in terms of real uA*10. Example: real 0.3 uA*10 has to be visualized as 3.
• In case of DHW thermostat, t04: "On" means closed, "OFF" means open.
reset
By pressing the " " push button for 1 second, it is possible to escape from the "Inquiry" mode. By pressing the "
button for 20 seconds, it is possible to leave the Installer mode. If no action has been taken, the MMI automatically leaves this
mode after 15 minutes.
"Hi" as History mode
Selecting "Hi" the display starts with showing "H01" blinking. By means of the CH+ and CH- push buttons it is possible to select
the parameters; between "H01" and "H08". Selecting one of these parameters, by means of the DHW+ and DHW- push buttons, it
is possible to see this value (not flashing).
Figure 126
"Hi" - History mode
H01
History buffer 1 (the latest)
H02
History buffer 2
H03
History buffer 3
--------
H08
History buffer 08
reset
By pressing the " " push button for 1 second, it is possible to escape from the "History" mode. By pressing the "
button for 20 seconds, it is possible to leave the Installer mode. If no action has been taken, the MMI automatically leaves this
mode after 15 minutes.
98
M -
ALL OUNT GAS FIRED WATER BOILER
(continued)
—
Boiler Manual
blinking
blinking
0LQ  0D[ 
blinking
0LQ  0D[ 
blinking
between 00 and 255
blinking
blinking
blinking
--------
blinking
reset
" push
reset
" push
Part number 550-100-305/0118