Johnson MANANTIAL Serie Manual De Instrucciones página 23

C. Installation instruction
8. When unit operation, put the unit in a well-ventilated place and non-blocking the air vent,
so that the machine can be able to inhale and exhaust enough air, to achieve hot water supply
function.
9. There should be a drain around the system unit for drainage. And the surrounding should have
enough space for maintenance. Because the top cover can be opened, at the top side of the unit
should have ≥800mm space for maintain.
10. 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 have a filter (for cleaning).
11. For waterway connection of this integrated unit, please refer to the following (Fig.4)
"Waterway installation diagram". On the system unit, there should be installed Three-port
valve, Safety valve and Filter. Connect them to the water inlet and outlet of the unit.
12. If the Heat pump equip with "Circulation Water Hole" (optional), It can be connected with
SOLAR WATER HEATER, HEAT RECOVERY SYSTEM and other water heating equipment
to heat the water tank by circulation. Retain original if no need external connection.
13. 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.
14. 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.
15. 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 has been filled with water before
turning on the system.
16. 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.
17. 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.
18. This water heater unit is filled with refrigerant by the factory, and no need to
vacuumize or refill refrigerant.
19. 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.
4 V.1