Lochinvar 5 operation manual Set Hot Water Generator HW operation, Configuration of the cascade

Installation & Operation Manual

9 Start-up

6.If no other changes are necessary, press the BACK button to return to the Parameter List Screen.

7.Once all the necessary adjustments have been made, press the BACK button to return to the Setup Screen.

8.Press the SAVE button to program all changes made to the set points and return to the Status Screen. Leaving the Setup Screen without pressing the SAVE button will erase the changes made to the set points and change them back to their previous settings.

Note: The SAVE button must be pressed to ensure proper programming of the controls. Failure to press the SAVE button will require all changes to be reprogrammed.

Set Hot Water Generator (HW) operation

Verify HW circulator mode

The HW Mode is programmed to heat an indirect hot water tank. When a tank thermostat or a tank sensor initiates a call for heat, the SMART TOUCH control will turn on the HW pumps and turn off the boiler pumps (if running). If the system pump is running, it will remain on. When the HW call for heat ends, and there is no space heating call for heat, the HW pumps will continue to run for a period of time. This pump delay is set at the factory to 30 seconds. If a shorter or longer delay is desired, the appropriate parameter in the control must be changed. See the SYNC Service Manual for a detailed explanation of this procedure. If there is an active space heating call for heat, then the boiler pumps will be turned on and the HW pumps will be turned off.

Set HW target temperature

When in the HW Mode, the control will modulate to maintain the outlet temperature to a set point. This set point is set at the factory to 180°F. If a different set point is desired, the appropriate parameter in the control must be changed. See the SYNC Service manual for a detailed explanation of this procedure.

Set clock

To program the clock, access the night setback parameter by pressing the following buttons:

>> >>

The SMART TOUCH control has a built-in clock that it uses for its night setback feature and for logging events. This clock must be set when the boiler is installed, and anytime the boiler has been powered off for more than one month. Use the following procedure to set the clock:

1.To set the clock, press the SELECT button in the upper right-hand corner of the display. The date and time are displayed as “Day dd/mm/yy hh:mm”. Day = day of the week (1 = Monday, 2 = Tuesday, etc.), dd = date, mm = month, yy = year, hh = hour, mm = minutes (24 hour time; 2:30PM = 14:30).

2.Using the keypad, adjust the date and time by working from left to right. If a digit has been entered incorrectly, press the left arrow key on the keypad to back the digit up. If no change is necessary, press the BACK button to return to the Parameter List Screen. Once the correct date and time have been entered press the OK button on the display to program the date and time into memory and return to the Parameter List Screen.

NOTICE	The internal clock does not adjust for
	Daylight Savings Time and therefore, will
	require a manual adjustment.
Configuration of the cascade

When installed in a Cascade system, the individual controls must be programmed for cascade operation. To program the cascade parameters, access the Cascade Menu found in the Setup Menu by pressing the following buttons:

>> >>

Note: The CASCADE button on the Main Menu will only display the current status of the cascade.

1.Once in the Cascade Setup Menu select the appropriate parameter by pressing the SELECT button.

2.The first time the cascade setup parameters are accessed, you will be required to enter the service password. Enter the service password as described in the SYNC Service Manual.

3.Once the password has been entered correctly, the Parameter Change Screen will appear. The Parameter Change Screen will display the parameter being changed, the previous setting of the parameter, and adjustment buttons.

4.To adjust the parameter, press the + or - buttons to change the value being displayed.

5.Make the correct adjustments and then press the APPLY button.

6.Once all the parameters have been adjusted press the BACK button. This will return you to the Setup Menu.

7.Press the SAVE button to program all controls.

Note: The SAVE button must be pressed to ensure proper programming of the controls. Failure to press the SAVE button will require all changes to be reprogrammed.

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