Solahart 151J, Руководство пользователя

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OPERATING YOUR SOLAR WATER HEATER
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Sub-tropical / Tropical climate
Minimum winter cold water supply temperature = 20°C
Thermostat set point = 60°C
Temperature rise = 40°C
Booster Heating Unit 150 model 180 model 300 model
1.5 kW 2 ½ hours 3 hours 4 ¾ hours
1.8 kW 2 hours 2 ½ hours 4 hours
2.4 kW 1 ½ hours 2 hours 3 hours
3.6 kW 1 hour 1 ¼ hours 2 hours
4.8 kW ¾ hour 1 hour 1 ½ hours
IN-SERIES GAS BOOSTING
An in-series gas booster (also known as an instantaneous gas booster) can be installed between the solar water heater and
the hot outlets in the house. This booster should be permanently active. The booster senses the temperature of the water
passing through it: if the water temperature is above its temperature setting it does nothing; if below it will automatically
heat the water up to the preset outlet temperature setting. This device ensures hot water delivery for a variety of hot water
demands without the need for user intervention while enabling maximum solar energy contribution to the water heating.
For more information on this booster, consult the owner’s manual for the product.
TO TURN OFF THE WATER HEATER
If you plan to be away from home for a few nights, we suggest you leave the water heater switched on.
If it is necessary to turn off the water heater:
•
Switch off the electrical supply at the isolating switch to the solar storage tank on the switchboard.
•
Close the cold water isolation valve at the inlet to the water heater.
TO TURN ON THE WATER HEATER
•
Open the cold water isolation valve fully at the inlet to the water heater.
•
Switch on the electrical supply at the isolating switch to the solar storage tank on the switchboard.
•
Check and if required reset the timer, if one is installed.
USING YOUR SOLAHART WATER HEATER AS A PRE-HEATER
This water heater is designed to be installed as an electric boosted solar water heater with its booster heating unit connected
to a power supply; however it may be installed with an in-series continuous flow or storage booster.
If this water heater is installed with an in-series booster, then the electric booster heating unit will not be connected to a
power supply and the references to the electric booster heating unit, thermostat and boosting controls in these installation
instructions will not be applicable to the installation.
Your Solahart can be used as a pre-heater to a new or existing in-series booster water heater provided:
1. The in-series booster water heater is:
▪
thermostatically-controlled not flow-controlled, except when used in conjunction with an electronic continuous
flow gas water heater, and
▪
Is suitable to be used as an in-series booster water heater for a solar water heater.
2. The operating pressures of the two water heaters are compatible or reduced to the lower of the two water heaters.
3. The in-series booster water heater has sufficient thermal capacity to supply the hot water requirements of the
application during periods of low or no solar gain.
4. A temperature-operated bypass valve is installed if the in-series water heater has either an over temperature energy
cut-out which can be permanently disabled by high temperature hot water or a maximum recommended inlet supply
temperature less than the temperature of water which can be supplied by this solar water heater.
Note: With flow-controlled water heaters the Solahart water heater can act as a supplementary heat source only not as a
pre-heater. The Solahart heater can be connected in a parallel circuit only via a changeover valve(s).