Installation Manual

47
WHL-019 REV. 12.17.14
Figure 27 - NOTE: The maximum tank temperature is 160
o
F, independent of all settings described above.
E. TEST MODE
This function is intended to simplify the gas valve adjustment if needed. Listed below are the recommended limits on each heater and
the combustion settings. Automatic modulation does not take place when the controller is in Test mode, only temperature limitation
based on the heater set point. The user will be allowed to increase or decrease the fan speed by pressing in either the {S1} or {S2}
keys.
To activate the Test Mode simply press the {S2} and {S3} key together for 1 second. Once activated, you will see in the display {Ser}
and the actual fan speed. The measurement of the combustion levels should always be taken at the highest and lowest fan speed.
When in Test Mode, the heater’s limit will shut down the burner if temperature limit is exceeded. It is recommended to draw water out of
the tank to lower temperature so tests can be performed.
After 10 minutes, Test Mode stops automatically. To exit Test Mode manually, press {S1} and {S2} key together for 1 second.
COMBUSTION SETTINGS ON ALL MODELS
Natural Gas
Propane LP
Fan Speed
Low
Ignition
High
Low
Ignition
High
Carbon Monoxide PPM
1 – 10
2 - 15
2 – 20
1 – 10
2 - 15
2 – 20
Carbon Dioxide (CO
2
)
8 - 10%
8 – 10%
8 - 10%
8 ½ - 10 ½%
8 ½ - 10 ½%
9 - 11%
Table 11
FAN SPEEDS
BTU
IGNITION
MIN
MAX
100,000
3000
2000
5700
130,000
3000
2000
7300
160,000
3000
2000
7450
199,000
3000
2000
9100
Table 12
F. MAINTENANCE
The control system requires no periodic maintenance under normal conditions. However, in unusually dirty or dusty conditions, periodic
vacuuming of the cover to maintain visibility of the display and indicators is recommended. In dirty environments, such as construction
sites, care must be taken to keep the water heater burner cover in place and drywall or saw dust away from water heater.
In unusually dirty or dusty conditions, care must be taken to keep water heater burner door in place. Failure to do so VOIDS
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.
du setting
Function 11
/ Function 9
Function 8
Function 10
Function 12