Supplied By www.heating spares.co Tel. 0161 620 6677
-6-
taken to ensure the device is suitable for temperatures and fluids that may be present in a
solar-thermal
system.
22. Temperature sensors for the cylinder provided with the differential controller should be
inserted into the pockets provided see figure 1A.
COMMISSIONING
Filling up
1. Open one hot water tap.
2. Close the commissioning valve (12).
3. Open the cold water supply valve.
4. When water flows from the open hot tap allow to flow to expel air from the system pipe work.
5. Open each hot water tap in turn to expel air from the system pipe work.
6. Check for leaks.
7 Manually operate Temperature and Pressure Relief Valve (5) to ensure free water flow through
discharge pipe.(Turn knob to left.)
Draining
Switch off the electrical power off (Important to avoid damage to element). Isolate boiler from
Aquaflow unit. Turn off the cold water supply valve. Open hot water tap. Open drain (13). The unit
will drain.
SAFETY AND MAINTAINANCE
Safety Cut-out
1. The safety cut-out operates if:
a. Wiring is incorrect.
b. The immersion heater thermostat or cylinder thermostat fails.
c. Thermostat is set too high.
2. Remember before resetting the safety cut-out or altering the thermostat setting, isolate
electrical supply to the unit prior to removal of the electrical box lid.
3. Reduce thermostat setting and press the reset button. After adjustments are completed, ensure
the lid to the electrical box is replaced correctly and the retaining screw is fitted.
4. If still out of operation, contact installer.
Cold or tepid water discharge from tundish
1. Turn off the electrical supply to the immersion heaters.
2. Turn off cold water supply valve.
3. Open a hot tap.
4. Recharge the expansion vessel to the setting of the pressure reducing valve.
5. Close all hot taps.
6. Open mains supply valve
