Ignition State And Timing; System Status And Error Codes - Lochinvar PVL 07575 Installation And Operating Manual

IGNITION STATE AND TIMING

IGNITION STATE
5 seconds (NG models)
Pre-purge
15 seconds (LP models)
Hot Surface Igniter
10 seconds
(HSI) Warmup
Ignition Activation
3.5 seconds maximum
Period (IAP)
Flame Recognition
0.5 second
Period (FRP)
Trial For Ignition IAP + FRP
Flame Stabilization
Not Applicable
Period
Inter-purge 30 seconds
Flame Failure 2 seconds max
Response Time (@ 1uA flame current)
Post-purge 30 seconds
Pressure Switch (PS)
2 minutes
Prove Period
Pressure Switch (PS)
Fault Delay (failed 2 minutes
open/closed)
Soft Lockout 20 minutes
Energy Cut Off
Indefinite
(ECO) Limit Lockout
Flammable Vapor Indefinite (see
(FV) Sensor Lockout "Resetting The Heater Control")

SYSTEM STATUS AND ERROR CODES

The micro-controller inside the gas control monitors the
flammable vapor safety features, the ignition sequence,
temperature settings and overall operation of the heater.
If any of these parameters does not operate properly the
controller will shut down the water heater, diagnose the
failure and flash an error code. The table below lists the
System Status Codes for the Honeywell control. Refer
to it and to the "Troubleshooting Guidelines" to diagnose
the problem before attempting corrective action. See also
"Flammable Vapor Sensor".
100221773_2000189439_Rev. 01
TIMING
www. lochinvar .com
LED Flash
Sequence
Short flash
IDLE (no call for heat,
once every four
no fault conditions)
seconds
"Heartbeat", Call For Heat
alternates bright/dim (no fault conditions)
One Flash, Low Flame Signal
three second pause (control continues to operate)
Two Flash, Pressure Switch Failed
three second pause Closed
Three Flash,
Pressure Switch Failed Open
three second pause
ECO (Energy Cut Off) Limit
Four Flash, Lockout
three second pause thermostat temperature limit
was exceeded.
Five Flash,
Flame Out Of Sequence
three second pause
Soft Lockout
Six-One Flash,
- Retry Limit
three second pause
- Failed Trial For Ignition
Soft Lockout
Six-Two Flash, - Recycle Limit
three second pause - Pressure Switch/High Limit
opened
Soft Lockout
Six-Three Flash,
- Recycle Limit
three second pause
- Flame Lost
Soft Lockout
Six-Four Flash, three
- Flame out of Sequence
second pause
Sensed
Seven Flash, Flammable Vapor Sensor
three second pause (FVS) Lockout
Eight-One Flash, Flammable Vapor Sensor
three second pause FVS Fault Detected
Eight-Two Flash, Temperature Sensor Fault
three second pause Detected
Eight-Three Flash,
Electronics Fault Detected
three second pause
Eight-Four Flash,
Valve Fault Detected
three second pause
Hardware Fault
Indefinite
Lockout
Control Status
53