Getting access to block out timer mode
Note: After installation only 'maintenance mode' should be used for block out changes. There is another procedure on page 16 of the installation manual related to the block out timer this only applies when the unit is first installed.
To set the block out timer for your Sanden unit you will need to access the 'clock control unit' (shown below in blue), to do this you will need to remove the four screws at the side of the top cover panel on your outdoor unit (shown below), which has a 10 mm lip around the entire unit, to access.
Once you have access to the clock control unit you can set the block out (BO) timer by following the steps below, this will allow you to set your block out hours.
1 - Hold down "UP" and "DOWN" together - gets you to "HSE" mode
2 - Press "UP" - gets you to outlet water temp setting mode
3 - Press "UP" - gets you to BO mode
4 - Press "ENTER" - gets you to EDIT BO mode (then enter the hours accordingly).
For more information consult page (17-22) of your Sanden installation manual which can be found here.
Setting the hours you want to block out
The block out time functions using four digits first two digits = off, second two digits = on so:
To set the timer to run between 12 midday (AEST) and 6 pm set the blackout timer to 1812, which means off at 6 pm (18 in 24 hr clock terms) and on at 12 pm.
To set the black out timer to run off-peak you might choose 0722 which means on at 10 pm (in 24 hr notation) and off at 7 am. Ensure that the off-peak tariff supplies a minimum of 5 hours continuous power to the Sanden HPHW.
If in doubt don't hesitate to contact us at email@example.com and we can guide you through the process