Crown Boiler AWR070 Installation Instructions Manual page 32

Status # Description
1 Standby
4 Prepurge
6 Spark
7 Flame proving
8 Running
10 Retry/Recycle Delay
13 Soft Lockout
14 Hard Lockout
15 Waiting for limit to close
Flame Present out of
16
Sequence
17 Self test
Waiting for Damper to
18
open
20 Damper failed to open
FIGURE 11.3: TYPICAL OPERATING MODE DISPLAY (BOILER TEMP SHOWN)
In operating mode, holding either the ↑ or ↓ button while viewing a given parameter will keep the display on
the actual reading. For example, pressing ↑ while reading boiler temperature as shown in Figure 11.3 will
keep the display on 180 for as long as this button is held. This makes it easier to view readings "live" if they are
changing rapidly
TABLE 11.2: STATUS CODES
Meaning
No call for heat or DHW
OR
Call for heat present , but boiler is in thermal purge (See
OR
Call for heat/DHW present but boiler temperature is above set point (SP) setting.
Damper has opened and control is briefly waiting before starting trial for ignition
(pre-purge time is 1.7s).
Control is attempting to light pilot
Control is verifying that the pilot flame is on and stable.
Main burner is on
Control was unable to establish pilot and is waiting 5 minutes before trying again
OR
Proof of pilot was lost after pilot was established and control is waiting 10 seconds
before attempting to relight.
A fault is preventing the boiler from firing. Boiler will be allowed to fire after problem
clears itself AND a forced delay period has passed.
A fault has occurred which requires manual intervention before the boiler will again
operate. This intervention can be in the form of interruption of the power supply to
the boiler or resetting the control in Adjustment mode.
A call for heat/dhw is present, but there is an open safety device, such as a blocked
vent switch, that is preventing the boiler from operating.
A flame was detected when none should have been present.
Boiler was just energized and control is running a self check.
Control is waiting for vent damper to prove open
Damper failed to prove open 60 seconds after being called to open.
1 sec.
1 sec.
 
1 sec.

NOTE
30
PP
on page 32)