Rinnai SUNMASTER Installation Manual download pdf (Page 47)

Rinnai Australia - 45 - Solar Split Systems Operating / Installation Manual

PRE SOLAR HEATING CHECKS

Before commencing solar heating of the water in the system ensure the following actions have been

completed:

Solar Collectors

1. Are the solar collectors installed with the correct slope and orientation to the sun?

2. Is the installation finished neatly with the roof made good, all tiles and flashings in place?

3. Are the bolts tight on the roof framework?

4. Are all solar collector straps fitted and correctly anchored to the roof structure?

5. If leak testing completed and successful, have any covers been removed from the solar collectors?

6. Has operation of the solar pump been checked?

7. Have the hot and cold sensors and leads been positioned and connected correctly?

Gas Booster

1. Ensure the gas supply is isolated. Remove the test point screw located on the gas inlet connection

and attach a pressure gauge.

2. Turn on the electrical power to the gas booster only (not the solar pump kit) and turn on the gas

supply.

3. Ensure the cold water inlet ('trio') valve on the storage cylinder inlet is open. Open all available hot

water taps.

4. Operate ALL other gas appliances at their maximum gas rate, in accordance with manufacturers

instructions.

5. With all gas appliances in operation at the maximum gas rate, the pressure should read between 1.13

- 3.0 kPa on Natural Gas. On LPG the pressure should be 2.75 - 3.0 kPa. If the pressure is lower, the

gas supply is inadequate and the appliance will not operate to specification. It is the installers

responsibility to check the gas meter, service regulator and pipe work for correct operation/ sizing &

rectify as required. Note that the gas regulator on the appliance is electronically controlled and factory

pre-set. Under normal circumstances it DOES NOT need adjustment during installation. Make

adjustments only if the gas booster is not operating correctly and all other possible causes for

incorrect operation have been eliminated. Instructions for gas pressure setting are located in the

pocket behind the front cover of the gas booster.

6. Close the hot water taps including the shower.

7. Check the hot water delivery temperature by placing a suitable thermometer at the hot water outlet

closest to the gas booster. This is usually the hot water outlet in the kitchen. The delivery temperature

should be greater than 55°C (this temperature allows for heat losses in pipe work). If the delivery

temperature at the hot water outlet is lower than 55°C, check the delivery temperature at the outlet of

the gas booster. It should be within 2°C of the set point, usually 60°C. If not, refer to the section 'Hot

Water Delivery temperature'.

8. Close the cold water inlet ('trio') valve on the storage cylinder inlet and inspect and clean the strainer.

Repeat for the strainer connected at the inlet of the gas booster. This procedure may need to be

repeated to ensure the strainers remains clear, especially on new installations.

9. Confirm the hot water delivery temperature from the gas booster. This is done by checking the hot

water delivery temperature at an untempered outlet close to the water heater. This is usually the hot

water outlet in the kitchen. The untempered hot water delivery should be between 55°C & 60°C.

Ensure building occupants do not have access to hot water outlets during this

procedure.

CAUTION

INSTALLATION & MAINTENANCE - GAS BOOSTED SYSTEMS

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Rinnai SUNMASTER Installation Manual Page 47

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