Johnson MANANTIAL Serie Manual De Instrucciones página 25

C. Installation instruction
Integrated unit connection (solar connection only available in the MANANTIAL300S model)
1. For waterway connection of this integrated unit, please refer to the following (Fig.5)
"Waterway installation diagram". On the system unit, there should be installed Three-port
valve, Safety valve, Filter, Main unit and solar collectors. Connect them to the water inlet and
outlet of the unit.
2. Nearby the system unit, there should be reserved a water supply pipe and hot water
pipe interface equipped with valves, the water inlet pipe should be with filter (for
cleaning).
3. The "circulation water inlet" can be connected with the water outlet of the solar
collectors. The "Circulation water outlet" can be connected with the water inlet of the solar
collectors. After connections, it can circulate heating the water in tank.
4. The working pressure of this water heater tank must ≤0.7MPa. Water inlet must connect the
safety valve, and its operation pressure is 0.7MPa, Connect another end of the safety valve to
water supply pipe. The safety valve should be connected by a small rubber pipe interlinked with
atmosphere; this pipe must not be blocked, in order to drain the water when the tank's pressure
exceeds 0.7MPa.
5. Water inlet pressure should >0. 1MPa, if the pressure is lower, can connect the
pressure pump on inlet pipe to get the high water flow.
6. Ensure the water tank is full fill with water before turn on the system: First, open the valve
on the water supply inlet, then switch on either valve of the water outlet, and then you can
affuse water to the tank until the water overflow the water outlet valve. After which you can
turn off the water outlet valve and check for leakage. Make sure there is no water leaking.
NOTE: For the first time use, ensure the water tank and solar collector water pipes have been filled
with water before turn on the system.
7. For the second circulation system, it can be filled with anti-freezing liquid or other
exchange media. (In order to ensure the water tank filled with water, require a certain section
of hot water outlet side should be about 10cm higher than the water heater tank section.)
8. The water heater temperature thermal sensor was put and sealed well in a tank by the
factory before launch to market. No need to install it when installation. Besides,
another thermal sensor has to be fixed steadily in the water outlet of the solar
collector. Please pay attention to keep warm and avoid water leakage.
9. An exhaust valve (valve bonnet opened) has to be installed in the highest position of the
solar collector water outlet. When there is air mixed in the pipe or the water pressure
exceed preset figure, it performs a protective effect.
10. When water connection finished, all the connected pipes should be checked to make
sure that one-way valve filter, circulation pump and safety valve etc. are correctly
connected, pipes and connecting pieces are stable and steady.
11. In the winter cold regions, the water heater unit can not turn off the power, if the system
stops running for a long period in winter, should be drain the tank water to avoid
water pipe or tank frost crack. Meanwhile, we should strengthen or check the external pipe to
prevent the pipe frozen.
5 V.1