Rinnai Prestige Close Coupled Systems, Руководство по эксплуатации и установке

Страница: 43 / 48

Rinnai Australia - 41 - Solar Close Coupled Operating / Installation Manual Issue 7 -
16/9/10
7. ELECTRIC SUPPLY
• The power supply can be either Off-Peak
(overnight), Extended Off-Peak (overnight and day)
or continuous, depending on the tariffs available
from the local electricity supply authority. The Off-
Peak (overnight) power supply minimises the cost
of any required electric boosting. Discuss power
supply requirements with the end user and
electricity supply authority as required.
• Connections for elements Figure 29 shows the
wiring detail for the water heater.
• A flexible 20 mm conduit is required for the
electrical cable to the storage cylinder. The conduit
is to be connected to the unit with a 20 mm
terminator. Connect the power supply wires directly
to the terminal block and earth tab connections
ensuring there are no excess wire loops inside the
front cover.
Figure 29 - Wiring detail
Heating Element Thermostat Temperature Settings
Australian Standards require a minimum thermostat set point of 60°C to inhibit the growth of
Legionella Pneumophilia bacteria.
FILLING THE SYSTEM
1. Ensure the electric power supply to the heating element is switched off and fuses removed.
2. Turn ON one or more hot water taps at the sink. Open the stop cock in the cold water mains supply
line. The entire system will now be filled with cold water.
3. Turn OFF the hot tap at the sink when water flows freely without air bubbles or air bursts. Check all
connections for leakage and tighten if necessary. This applies especially to fittings in positions not
easily assessed such as near the solar collectors. Operate the easing gear of both the PTR and
ECV valves at the storage cylinder to ensure these valves are functional.
The power supply to the heating elements must not be activated until the system is
filled with water.
Ensure building occupants are warned to stay clear of the solar system
components, building perimeter and roof since hot water or steam may be
discharged from pipes or components.
If leaks are detected the system must be drained and leaks repaired before the
system is refilled. If this is necessary, temporarily cover the solar collectors with
packaging cardboard or a tarp to prevent them from heating which could result in
steam or hot water being discharged from fittings.
WARNING
WARNING
WARNING
INSTALLATION & MAINTENANCE - ELECTRIC SYSTEMS