Sanden
Heat
Pump
–
Owner’s
Manual
Page
13
of
20
System operation if connected to Demand Response power
There are no special settings for the Demand Response. The system will run once
power becomes available and the temperature in the tank drops below the set point
of the tank thermistor.
If connecting the unit to Demand Response power, ensure that the off peak tariff
provides a minimum of 5 hours continuous power, as it can take at least four hours
to fill the tank unit with hot water.
If the ambient temperature is lower than 50
o
F (10
o
C) this can be longer.
If the unit is connected to Demand Response power and hot water consumption has
been higher than normal, hot water might not be available until the next power
supply cycle.
Daily frequency and amount of hot water consumption may also affect the duration
of the heating cycle operation.
Select the electrical supply mode that best suits the customer’s hot water
consumption. The type of off-peak connection may need to be changed
if hot water supply is not maintained as required.
The basic system installation is now complete; the unit is now ready for initial filling,
air purge and then start up.
Check the Installation against the Installation Check list provided
at the end of this manual
Ensure that the work site is tidy; Sanden International recommends the use of Slim Duct or
Fortress product to cover water piping on the outside of the house
Figure 6: Outline of electrical system connections
