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Page
TEMPERATURE SETTINGS ON THE PCB
(WITHOUT CONTROLLER)
WARNING
•
DO NOT adjust the upper bank of DIP switches for the 510C model.
•
Turn off the power supply to the water heater before changing the DIP switch
settings.
•
Failure to observe these warnings could result in carbon monoxide poisoning, severe
personal injury, or death.
There are 2 preset temperatures, 120 °F (50 °C) and 140 °F (60 °C), that you can select by changing the
DIP switch settings on the computer board without the controller. See below.
When the controller is in normal operation, the set temperature of the controller is given priority over the
set temperature of the DIP switch settings.
NOTE:
The black square indicates the correct DIP switch position for set temperature. For the
110C and 310C, only adjust DIP switch No. 9. For the 510C, only adjust DIP switch No. 5 on the
lower bank. Do not adjust the other DIP switches for temperature adjustment.
•
The temperature has been preset at the factory to 120 °F (50 °C).
DIP switches
Computer board
120 °F (50 °C)
DEFAULT
140 °F (60 °C)
No. 9 : OFF
No. 9 : ON
110C and 310C models
OFF
ON 1 2 3 4 5 6 7 8 9 10
OFF
ON 1 2 3 4 5 6 7 8 9 10
Lower bank of
DIP switches
Computer board
Upper bank of
DIP switches
(Lower bank of DIP switches)
120 °F (50 °C)
DEFAULT
140 °F (60 °C)
No. 5 : OFF
No. 5 : ON
510C model
OFF
ON 1 2 3 4 5 6
OFF
ON 1 2 3 4 5 6
2 3 4 5 6
Normal Operation
Owner's Guide
Appliance/Use
Flow rate
GPM (US)
L/min
Lavatory Faucet
1.0
3.8
Bath Tub
4.0 – 10.0
15.2 - 37.8
Shower
2.0
7.5
Kitchen Sink
1.5
5.6
Dishwasher
1.5
5.6
Washing machine
4.0
15.2
Household Flow Rates
Taken from UPC 2006
FLOW
•
The flow rate through the water heater is limited to a
maximum of 6.6 GPM (25 L/min) for the 110C model,
8.0 GPM (30 L/min) for the 310C model, and 10.0
GPM (38 L/min) for the 510C model.
•
The temperature setting, along with the supply
temperature of the water, will determine the flow
rate output of the unit.
•
Please refer to the temperature vs. gallons per
minute charts on p. 50 to determine the likely flow
rates based on your local ground water temperature
and your desired outlet water temperature.
•
Refer to the above table for typical household plumbing fixture flow rates to determine what the water
heater can do in a household application.
