Installation - Solar Primary; Installation - Direct Units - Heatrae Sadia PremierPlus PES170D Installation And User Manual

4.0 INSTALLATION - SOLAR PRIMARY

4.1 CONNECTION TO PRIMARY CIRCUIT
The lower (solar) coil of the Premier Plus Solar must be connected to a fully pumped solar primary circuit. The con-
nections are suitable for 22mm copper pipe direct to the compression fittings provided. The connections are also
threaded 3/4" BSP male parrallel should BSP be required.
The solar primary circuit should have its own dedicated circulating pump and safety controls which must be installed
as per the manufacturers' instructions.
4.2 CONTROL OF PRIMARY CIRCUIT
Temperature control of the PremierPlus solar must be carried out using a suitable proprietory solar controller/
programmer. The cylinder temperature sensing probe (supplied with the solar controller) should be fully insterted
into the pocket provided on the PremierPlus solar and its cable secured using the cable clamps on the controls
housing. (see Fig.8)
Connection to the solar controller should be in accordance with manufacturers instructions. The solar controller
should be programmed to give a cylinder temperature of approximately 60°C (maximum 70°C).
The solar controller and solar primary circulation pump must be wired via the over-temperature thermal cut-out
mounted in the lower solar controls housing (see Fig. 9). This will ensure that the heat input to the solar coil is in-
terrupted in the event of the cylinder over-heating. There must also be suitable check (non-return) valves installed
in the solar primary flow and return to prevent the possibility of any thermo-syphoning if the solar circulation is
stopped.

5.0 INSTALLATION - DIRECT UNITS

5.1 PLUMBING CONNECTIONS
Direct units require the following pipework connections.
•
Cold water supply to and from inlet controls.
•
Outlet to hot water draw off points.
•
Discharge pipework from valve outlets to tundish.
5.2 ELECTRICAL SUPPLY (FIG. 6)
Premier Plus solar units are fitted with two 3kW immersion heaters (Except 170Ltr) as standard. It is recommended
that these should be wired via a suitable controller to BSEN 60730. The Premier Plus Solar MUST be earthed.
All wiring to the unit must be installed in accordance with the latest IEE Wiring Regulations and the circuit must
be protected by a suitable fuse and double pole isolating switch with a contact separation of at least 3mm in both
poles. The Live and Neutral connections are made directly onto the combined thermostat and thermal cut-out
located under the terminal cover(s) mounted on the side of the unit. The Earth connection should be made to the
earth connection located to the side of the immersion heater boss(es). The supply cable must be routed through
the cable gland located on the unit casing beneath the terminal housing.
operate the immersion heaters until the Santon Premier Plus Solar has been filled with water.
DO NOT
5.3 SAFETY
DISCONNECT FROM THE MAINS SUPPLY BEFORE REMOVING ANY COVERS.
Never attempt to replace the immersion heater(s) other than with the recommended Santon immersion heater(s).
DO NOT BYPASS THE THERMAL CUT-OUT(S) IN ANY CIRCUMSTANCES. Ensure the two male spade terminations on
the underside of the combined thermostat and thermal cut-out are pushed firmly onto the corresponding termina-
tions on the element plate assembly.
In case of difficulty contact Santon service,
Tel: 0844 8711530.
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