lp-441 Rev. 002 Rel. 008 Date 8.23.18
36
Figure 25 - Sealing the Water Heater for Sanitary Applications
Part 11 - Shutdown
A. Shutdown Procedure
If the burner is not operating, lower the set point value to 70
o
F and
wait for the burner to shut off. Continue to wait for the combustion
blower to stop, so all latent combustion gases are purged from the
system. This should take a maximum of 5 minutes. After combustion
gases are purged turn off electrical power to the water heater.
B. Vacation Procedure
If there is danger of freezing, change the set point to 70
o
F. DO NOT turn
off electrical power. If there is no danger of freezing, follow “Shutdown
Procedure”.
C. Failure to Operate
Should the burner fail to light, the control will perform two more
ignition trials prior to entering a lockout state. Note that each
subsequent ignition trial will not occur immediately. After a failed
ignition trial, the blower must run for approximately 10 seconds to
purge the system. Therefore, a time period of approximately 40 to 90
seconds will expire between each ignition trial.
If the burner lights during any one of these three ignition trials, normal
operation will resume. If the burner lights, but goes off in about 4
seconds, check the polarity of the wiring. See electrical connection
section of this manual.
If the burner does not light after the third ignition trial, the control
will enter a lockout state. This lockout state indicates that a problem
exists with the water heater, the controls, or the gas supply. Under
such circumstances, a qualified service technician should be contacted
immediately to properly service the water heater and correct the
problem.
If a technician is not available, pressing the
button will remove
the lockout state so additional trials for ignition can be performed.
D. Important Notice
It is extremely important that whenever work is performed on the
plumbing system that either:
• The water heater is powered off, or,
• The water heater is valved off and isolated from the plumbing
system.
Failure to take these measures could result in a dry-firing condition.
The water heater must be full of water and the system fully purged
BEFORE powering the water heater. Performing any work in the
plumbing system without either powering off the water heater
or isolating the water heater through the use of shut-off valves
could result in a condition referred to as “dry-firing”. Dry-firing the
water heater will damage the heat exchanger, and could result in
property damage, serious personal injury, or death. Such damages
ARE NOT covered by water heater warranty.
Part 12 - Troubleshooting
A. Error Code
An error code may occur during installation of the heater. This
condition may lead to a lock out condition of the controller, which
will need to be manually reset by pressing the
button.
B. Heater Error
1. When an error condition occurs the controller will display an error
code on the display module.
2. These error codes and several suggested corrective actions are
included in Table 20.
3. In the case of E07 and E13 error codes, if uncorrected, the water
heater will go into a fault condition as described in section C.
Lockout.
C. Lockout
1. When an fault condition occurs, the controller will display a fault
code (example: F00 on the display module).
2. Note the fault code and refer to Table 21 for an explanation of the
fault code along with several suggestions for corrective actions.
3. Press the
button to clear the fault and resume operation. Be
sure to observe the operation of the unit to prevent a recurrence of
the fault. NOTE: You are allowed up to 5 “resets” to clear fault or error
codes. After that, the controller will enter an E13 lockout state.
When servicing or replacing any components of this water heater
be certain that:
• The gas is off.
• All electrical power is disconnected.
In addition, when servicing or replacing components of this water
heater in direct contact with heater water:
• There is no pressure in the heater. Pull the release on the
relief valve to relieve pressure in the heater.
• Heater water is not hot.
Failure to follow these precautions could result in property
damage, serious personal injury, or death. Such damages ARE NOT
covered by water heater warranty.
DO NOT USE THIS APPLIANCE IF ANY PART HAS BEEN
SUBMERGED IN WATER.
Immediately call a qualified service
technician. The appliance MUST BE replaced if it has been
submerged. Attempting to operate an appliance that has been
submerged could create numerous harmful conditions, such as
a potential gas leakage causing a fire and/or explosion, or the
release of mold, bacteria, or other harmful particulates into the
air. Operating a previously submerged appliance could result in
property damage, severe personal injury, or death.
NOTE:
Appliance damage due to flood or submersion is considered
an Act of God, and IS NOT covered under product warranty.
Allowing the heater to operate with a dirty combustion chamber will
hurt operation. Failure to clean the heat exchanger as needed by the
installation location could result in heater failure, property damage,
personal injury, or death. Such product failures ARE NOT covered
under warranty.
