Installation manual

6 Installation Instructions
Envirosun TS Installation Manual Rev5b PVNW.docx Page 23
6.5 Plumbing Connections
6.5.1 Cold water connection
A check valve and a stop cock must be fitted to the cold water supply pipe work.
1. The cold water connection is made at the blue disc. Connect the cold water supply
to the end of the ¾” BSP female thread of the Tee piece in the cold down pipe
assembly (Detail A).
2. Where the water supply pressure is greater than or likely to exceed 550 kPa at any
time, a 500 kPa pressure reducing valve must be fitted to limit the supply pressure.
A breach of this requirement may void the warranty in the event of damage caused
by excessive pressure.
6.5.2 Cold water expansion relief valve
Fit the 600 kPa pressure relief valve, supplied in the Parts Box, in the cold water supply
pipe after the check valve, stop cock and (if required) pressure limiting valve.
6.5.3 Hot water connection
Use the ¾” BSP x 22mm fitting, supplied in the Parts Kit, to connect the hot water supply
to the storage tank outlet connection (Detail A) marked with a red disc.
6.5.4 Pressure & temperature relief valve (P&T valve)
Remember this valve can discharge very hot water, so carefully consider its location.
Never discharge onto a solid surface like concrete.
1. Fit the 700 kPa/99°C (10 kW) pressure & temperature relief valve supplied in the
parts box into the ½” brass tank socket, marked with the brown disc, adjacent to
the hot outlet tube as shown in (Detail A).
2. Ensure that the drain line from the pressure and temperature relief has a
continuous downslope and falls away from the valve and towards the ground level
to a safe location, terminating above the ground level. Please ensure that the drain
is installed in a place where it cannot be affected by freezing conditions (per
AS3500).
6.6 Electrical connection for Electric AES (Booster)
For safe performance this water heater is fitted with a thermostat and an over
temperature cut-out. These devices should not be tampered with or removed.
Do not operate this water heater without the electrical thermostat and over
temperature cut-out in the circuit.
The electric element is only connected in models using an electric AES system. No
connection is made to the electric element for gas AES systems.
The electrical booster requires a 220 – 250 volt single phase AC power supply with a
capacity suitable for the kilowatt rating of the element selected for the application. For
example, a 2.4 kW element requires a 10 amp supply capacity, a 3.6 kW element
requires 15 amp supply capacity.