CONTROL FEATURES. Haws 9326, 9327

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CONTROL FEATURES. Haws 9326, 9327 | Manualzz

CONTROL FEATURES

CAUTION

BEFORE USING THIS CONTROL , make sure all prior installation steps have been properly completed, electrical power is on and water is present in the heater.

Push Button Flow Chart

1) The SETPOINT TEMP or ACTUAL TEMP screen can be selected for display as the home screen. Either of these screens will remain on the display when the backlight timer expires.

SETPOINT

TEMP120F

2) There is a 5-minute time delay built into the control.

Regardless of which screen is being displayed, after 5 minutes of inactivity, the display will revert to the SETPOINT

TEMP screen.

3) The 4 push buttons are used to control the operation of the heater. The LEFT and RIGHT buttons shift the display from one screen to another. The DOWN and UP buttons may change the values within selected screens.

4) As an example, when the screen displays SETPOINT TEMP, the desired hot water temperature will increase 1 degree for each press of the UP button and decrease 1 degree for each press of the DOWN button. Note that minimum and maximum set point temperatures are established at the factory.

OR

SETPOINT

TEMP120F

SETPOINT

TEMP120F

ACTUAL

TEMP 75F

5) The LEFT and RIGHT buttons shift the display from one screen to another. From the INLET TEMP screen, one press of the RIGHT button will shift the display to the SETPOINT

TEMP screen. INLET TEMP shows the actual temperature of the water entering the heater.

6) From the SETPOINT TEMP screen, one press of the RIGHT button will shift the display to the ACTUAL TEMP screen. This shows the actual temperature of the water leaving the heater.

7) Form the ACTUAL TEMP screen, one press of the RIGHT button will shift the display to the LOAD PCT screen. This shows the electrical power consumption as a percentage of full power.

INLET

TEMP 75F

SETPOINT

TEMP120F

ACTUAL

TEMP 75F

SETPOINT

TEMP120F

ACTUAL

TEMP 75F

LOAD PCT

0% PWR

15

8) From the LOAD PCT screen, one press of the RIGHT button will shift the display to the FLOWRATE screen. This shows the rate of flow of water through the heater.

9) From the FLOWRATE screen, one press of the RIGHT button will shift the display to the UNITS screen. This shows the units of measure in either the ENGLISH or METRIC systems. ENGLISH units are degrees Fahrenheit and gallons per minute. METRIC units are degrees Celsius and liters per second. Use the UP and DOWN buttons to select the desired units of measure.

10) From the UNITS screen, one press of the RIGHT button will shift the display to the SOFTWARE REVISION screen. This shows the revision level of the software in the control.

11) From the SOFTWARE REVISION SCREEN, one press of the right button will shift the display to the ERRORS screen. This shows the error history of the heater. “0 ERRORS” means that no errors have occurred.

If the heater has an error history of 4 errors: this history will be displayed on the screen as shown. “CODE 1:E0” refers to the first error and indicates it to be an E0 error. One press of the UP button will show the second error as “CODE 2:E0” error.

Continued pressing of the UP or DOWN buttons will scroll through each of the errors in the history (in this case a total of 4). ERRORS indicate an undesirable condition but will not shut down the operation of the heater

LOAD PCT

0% PWR

FLOWRATE

??? GPM

UNITS

ENGLISH

SOFTWARE

20131218

FLOWRATE

??? GPM

UNITS

ENGLISH

SOFTWARE

20131218

1 ERROR

CODE1:F0

Error Codes

E0: Excessive water flow detected

Corrective action: Using the OUTLET BALL VALVE, slowly reduce water flow until the desired temperature is achieved.

The temperature is proportional to the flow through the heater; the lower the flow, the higher the temperature and vice versa.

CAUTION

Keep the INLET BALL VALVE fully “OPEN”. NEVER RESTRICT THE WATER FLOW USING

THE INLET VALVE.

E1: Inlet temperature too hot to generate heat

16

12) FAULTS are communicated through the LCD display. The display will switch from the SETPOINT screen to the FAULT screen and back again every 3 seconds. FAULTS indicate an undesirable condition and will immediately shut down the operation of the heater. If faults are appearing on your heater call Haws Technical Support for assistance.

SOFTWARE

20131218

1 ERROR

CODE1:F0

Fault Codes

F0: Outlet thermistor out of range

F1: No change in water temperature detected

F2: Dry fire detected - Optical Sensor Tripped

F3: Excessive dry fire occurrences detected

F4: Inlet thermistor out of range

13) The security of the heater settings is provided by pressing and holding the LEFT and UP buttons for 3 seconds to lock the buttons. Once locked, the buttons have no function. Press and hold the same LEFT and UP buttons for 3 seconds to unlock the buttons.

The security status can be checked at any time by pressing any one button. If the system is locked, the screen will display

“BUTTONS LOCKED”.

14) The display can be turned off or on. Press and hold the

DOWN and RIGHT buttons for 3 seconds. If the display is off, it can be turned on by pressing and holding the same DOWN and

RIGHT buttons for 3 seconds.

[ + ] =

+

BUTTONS

LOCKED

17

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