Heatrea Sadia PremierPlus SystemFit, Инструкция по установке и эксплуатации

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TEMPERATURE CONTROLS IMMERSION HEATER(S)
A combined adjustable thermostat and thermal cut-out is provided for each immersion heater. The thermostat is factory set
to give a water storage temperature of approx. 55° to 60°C. Access to the thermostat can be made by opening the immersion
heater cover - DISCONNECT THE ELECTRICAL SUPPLY BEFORE OPENING THE COVER(S). Temperature adjustment is made by
inserting a flat bladed screwdriver in the slot on the adjustment disc on top of the thermostat and rotating. The adjustment
range on the spindle represents a temperature range of 10°C to 72°C. If in any doubt contact a competent electrician.
DO NOT bypass the thermal cut-out(s) in any circumstances.
HEATING BY BOILER
The PremierPlus SystemFit cylinder units are fitted with an indirect thermostat and thermal cut-out. These controls must be
wired in series with the 2 port motorised zone valve supplied to interrupt the flow of primary water around the heat exchanger
coil when the control temperature has been reached. The controls are located within the lower terminal housing along with
the immersion heater thermostat. The thermostat is factory set to give a water storage temperature of approx. 55° to 60°C.
Access to the thermostat can be made by opening the terminal housing cover - DISCONNECT THE ELECTRICAL SUPPLY BEFORE
OPENING THE COVER. Temperature adjustment is made by inserting a flat bladed screwdriver in the adjustment knob and
rotating. The minimum thermostat setting is 10°C. The adjustment range on the spindle gives a temperature range of 10°
to 72°C (see Fig 7, page 16 for adjustment details). If in any doubt contact a competent electrician.
An immersion heater is also provided for use, should the indirect heat source be shut down for any purpose. The immersion
heater control temperature is set using the immersion heater thermostat.
DO NOT bypass the thermal cut-out(s) in any circumstances.
The space heating control temperature and the operating times for heating and hot water are set using the remotely mounted
controller. The optimum temperatures and times will have been set during commissioning. Should the temperatures or
timings need to be altered, refer to the installation and user instructions leaflet supplied with the controller for the method
of adjustment. If a second CH zone is fitted, this will be controlled by its own programmable room thermostat. Refer to the
manufacturers installation and user instructions supplied with the programmable room thermostat for the method of setting
and adjustment of heating times and temperatures.
FLOW PERFORMANCE
When initially opening hot outlets a small surge in flow may be noticed as pressures stabilise. This is quite normal with
unvented systems. In some areas cloudiness may be noticed in the hot water. This is due to aeration of the water is quite
normal and will quickly clear.
OPERATIONAL FAULTS
Operational faults and their possible causes are detailed in the Fault Finding section (page 21) of this book. It is recommended
that faults should be checked by a competent installer.
The air volume within the expansion vessel will periodically require recharging to ensure expanded water is accommodated
within the unit. A discharge of water INTERMITTENTLY from the expansion valve will indicate the air volume has reduced
to a point where it can no longer accommodate the expansion.