Rinnai Prestige Close Coupled Systems, Руководство по эксплуатации и установке

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Rinnai Australia - 37 - Solar Close Coupled Operating / Installation Manual Issue 7 - 16/9/10
INSTALLATION PROCEDURE
1. Install Solar Collectors and cylinders
• Position and install the solar collectors and cylinder in accordance with the section
‘INSTALLATION OF SOLAR COLLECTORS AND CYLINDERS”.
2. Connect PTR Valve
• Connect the PTR Valve in the location shown in the relevant diagram of Figures 24 to 27 .
Leave the valve outlet pointing down. Tighten the valve using the spanner flats - never use
the valve body.
• The PTR Valve must be adequate for the thermal loading applied to the storage cylinder. In
the case of gas boosted systems, the thermal load is applied only by the solar collectors.
The continuous flow hot water heater does not apply thermal load to the storage cylinder.
The potential solar output for the solar collectors at PTR Valve relief conditions is listed in
Table 3 .
• The PTR Valve pressure ratings vary according the cylinder specifications. The maximum
heater input rating is 10.0 kW. The PTR valve rating MUST EXCEED the total input from the
solar collectors. If it does not, the PTR valve MUST be exchanged for a model of higher
capacity.
• For example, for a gas boosted solar system with 3 x SP200A collectors, the thermal load is
3 x 1.25 = 3.75 kW. This is less than 10.0 kW, hence the supplied PTR valve is of sufficient
capacity.
• Use Teflon thread tape on the valve, never use hemp or other sealing materials. Ensure the
tape does not protrude past the end of the thread, which could result in it hanging over the
end of the thread and blocking the water passage through the valve.
3. Mount Gas Booster
• Mount the gas booster in accordance with the section ‘GAS BOOSTER LOCATION &
MOUNTING’.
4. Connect Water to Gas Booster
• Connect the outlet of the storage cylinder to the water inlet of the gas booster.
5. Connect Fittings
• Connect fittings and pipe work as shown in the relevant diagram in Figures 24 to 27 .
6. Cold Water Supply
• Connect cold water supply to the inlet ‘T’. Ensure that the relevant valves as described in
the section “VALVES AND FITTINGS” are fitted.
• Purge the cold water supply lines to remove air and swarf before final connection.
7. Relief Drain Lines
• Independent 15 mm copper pipes must be fitted to the drain outlets of the PTR and ECV.
Each pipe must be open to atmosphere and run with a continual downward grade in a frost
free environment to a visible discharge point. Drain lines must not exceed 9 metres in
length.
• Valves or other restrictions must not be placed in the relief valve drain outlet line.
8. Hot Water Discharge
• Connect the hot water outlet of the gas booster to the pipe work supplying hot water to the
premises.
9. Connect Gas to Booster
• Connect a suitable gas supply and isolating valve to the gas booster. Follow instructions
supplied with gas booster. Keep gas booster isolated at this stage.
Some water will drip from the drain lines during heating of the water in the storage
cylinder. It is recommended to discharge directly above a drain.
A temperature limiting device may be required as detailed in the section “HOT
WATER DELIVERY TEMPERATURE”.
NOTE
WARNING
INSTALLATION MAINTENANCE - GAS BOOSTED SYSTEMS