- 30 -
- 31 -
Delivery Temperature Adjustment for 50°C Preset Model
This instruction must be read in conjunction with the Operating & Installation instructions
and the caution sheet “Instructions for units supplied set at 50°C to comply with AS 3498”
which are supplied with the appliance.
This instruction applies only to appliances labelled “50°C Preset” on the front cover.
“50°C preset” appliances are “Factory Set” to deliver a maximum temperature not
exceeding 50°C. However, they have an incremental adjustment mechanism that allows
the installer to increase the appliance delivery temperature incrementally from the “Factory
Set” value to temperatures exceeding 50°C. This is intended to enable compensation for
temperature losses in the pipework between the water heater and any outlets and achieve
the required temperature at the outlet.
This instruction contains the procedure steps for carrying out such adjustment.
Measure the maximum hot water temperature from the sanitary fixture used primarily for
the purposes of personal hygiene that is closest to the hot water heater (for example, a
shower outlet in the bathroom closest to the water heater) as follows.
1. Unplug power supply cable to the unit.
2. Move up one notch on dip switch from the existing step. (Factory preset mode is
“FACTORY DEFAULT”)
3. Plug power supply cable to the unit.
4. Open the tap. When flow rate and temperature become stable, measure the stabilised
hot water temperature. (It should be 48°C)
5. If the temperature is less than the appropriate temperature (refer to 4), return to 1 and
adjust again.
Application
Background
Procedure Steps - Delivery Temperature Adjustment
