Maintenance - Westinghouse WGR050NG076 Installation Instructions Manual

Test mode can be used to incrementally increase and decrease fan
speed to test the combustion system. See Tables 15 and 16 for
Combustion Settings and Fan Speeds.
1. Use the and push buttons to change the fan speed
(steps of 50 rpm) between the range maximum fan speed and
minimum fan speed
2. Use the to go directly to the maximum fan speed
3. Use the to go directly to the minimum fan speed
Range between minimum fan speed and maximum fan speed is
taken as absolute power value (0 - 100%).
During Test mode, the LCD flame symbols are enabled as follows:
Flame ON and power < 30% then one third of the flame symbol will
display
Flame ON and power > 30% or < 75% then two thirds of the flame
symbol will display
Flame ON and power > 75% then the full flame symbol will display
Burner ON and OFF conditions are:
Burner ON: UPPER temperature < 185°C
Burner OFF: UPPER temperature ≥ 194°C
The function is enabled for a maximum of 15 minutes.
Test mode can be disabled by pressing
Fan Speed
Carbon Monoxide PPM
Carbon Dioxide (CO )
2
Table 15 – Combustion Settings on All Models
BTU (FUEL)
76000 (NATURAL)
76000 (LP)
Table 16 – Fan Speeds
C. 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.
button.
COMBUSTION SETTINGS ON ALL MODELS
Natural Gas
Low Ignition
1 – 10
2 - 15
8 – 10%
8 - 10%
FAN SPEEDS
IGNITION
5000
3800
High Low
2 – 20 1 – 10
8 - 10% 8 ½ - 10 ½%
MIN
2150
2100
Propane LP
Ignition High
2 – 20
2 - 15
8 ½ - 10 ½% 9 - 11%
MAX
6300
6300
WHL-001 REV. 9.3.14
48