User Instructions - Heatrae Sadia PremierPlus PES170D Installation And User Manual

9.0 USER INSTRUCTIONS

10.1 WARNINGS
IF WATER ISSUES FROM THE TEMPERATURE/PRESSURE RELIEF VALVE ON THE SANTON PREMIER PLUS SOLAR
SWITCH OFF ELECTRICAL SUPPLY TO THE IMMERSION HEATER(S) (DIRECT UNITS),SHUT DOWN THE BOILER
(INDIRECT UNITS) AND SHUT DOWN THE SOLAR PRIMARY CIRCUIT. DO NOT TURN OFF ANY WATER SUPPLY.
CONTACT A COMPETENT INSTALLER FOR UNVENTED WATER HEATERS TO CHECK THE SYSTEM.
DO NOT TAMPER WITH ANY OF THE SAFETY VALVES FITTED TO THE SANTON PREMIER PLUS SYSTEM. IF A
FAULT IS SUSPECTED CONTACT A COMPETENT INSTALLER.
10.2 TEMPERATURE CONTROLS - SOLAR
Temperature control of the solar primary coil is by means of solar differential temperature controller. This will usually
have been set during commissioning to give a storage temperature of approximately 60
supplied with the controller for details of how to adjust this if required.
10.3 TEMPERATURE CONTROLS – DIRECT UNIT 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
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
(see Fig 7, page 11 for details). If in any doubt contact a competent electrician.
DO NOT bypass the thermal cut-out(s) in any circumstances.
10.4 TEMPERATURE CONTROLS – INDIRECT UNITS (Fig. 8)
The Santon PremierPlus solar Indirect 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 interupt the flow of primary water around
the heat exchanger coil when the control temperature has been reached. The controls are located within the upper
grey terminal housing along with the immersion heater thermostat. The thermostat is factory set to give a water
storage temperature of approx. 55
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
The adjustment range on the spindle represents a temperature range of 10
If in any doubt contact a competent electrician.
On indirect units 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 controls, see 10.3 for
details
DO NOT bypass the thermal cut-out(s) in any circumstances.
10.5 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.
10.6 OPERATIONAL FAULTS
Operational faults and their possible causes are detailed in Section 9.0. 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 ac-
commodated 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.
to 60 C. Access to the thermostat can be made by opening the terminal housing
o o
o
to 60 C. Access to the thermostat can be made by
o o
to 72 C (see Fig 7, page 11 for details).
o o
C. Refer to user instructions
to 72
o o
C.
o
C
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