52
CHAPTER 9
CHAPTER 9 - ACVMAX OPERATION
Boiler Information
Lockout History
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Lockout History
1. Blower speed 5h ago
2. DHW Sensor Open 2h ago
3. Sensor Drift 25 h ago
4. No error 27 h ago
5. No error 27 h ago
6. No error 27 h ago
Lockout Details
Blower speed
Boiler Status --
Heating Call --
DHW Call --
Boiler Firing Rate 44%
Ionization current 44μA
Lockout History records the last eight lockouts. Six lines are dis-
played on the Lockout History screen at one time. Each line contains a
lockout description followed by how long ago the lockout occurred.
Press the UP or DOWN buttons to scroll through the items then press
OK to select and get more details through the Lockout Details screen.
The following information items are recorded at the time of a lockout:
• Boiler Status
• Heating Call
• Domestic Call
• Boiler Firing Rate
• Flame Ionization Current
• Boiler Setpoint
• Boiler Supply Temperature
• Boiler Return Temperature
• Boiler Flue Temperature
• Outdoor Temperature
• System Temperature
9.12.2 Lockout Screen
If a problem occurs, the Lockout Screen replaces the
Home Screen. The backlight will remain on until the
lockout is reset.
Pressing any arrow button will return to the Home
Screen so that additional troubleshooting can be per-
formed. See Sections 9.12.3 on page 53 and 9.12.4
on page 54 for a list of lockouts and descriptions.
Select the Home Screen icon at the bottom of any
screen to return to the lockout screen.
Low Water
Water pressure has fallen below
7.2 psi. Increase pressure
to normal range.
If problem persists,
call for service
E37
Lockout reference code. Refer to Sections 9.12.3 on
page 53 and Section 9.12.4 on page 54 for more
information.
Lockout text. The rst sentence describes the lockout,
the second sentence gives a possible cure, and the third
tells how to reset the lockout.
Lockout message.
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