Midea 190RDN3-E, Installation And Owner'S Manual

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Installation & Owner‘s Manual
6
5.1 Water affusion before operation
5. TRIAL-RUNNING
Water Affusion
Hot water outlet
Close
Water out
When water flows out from the water
outlet, the tank is full. Turn off the hot water
outlet valve and water affusion is finished.
Open
Open the cool water inlet valve and the hot
water outlet valve.
Cool water inlet
Hot water outlet
Open
Fig.5-1
Before using this unit, please follow the steps below.
Water Affusion: If the unit is used for the first time or used again after
emptying the tank, please make sure that the tank is full of water
before turning on the power.
Method: see Fig.5-1.
CAUTION
Close
Open
Drainpipe shut-off valve
Open
Cool water inlet
Close the cool water inlet valve, open the hot
water outlet valve and open drainpipe.
Hot water outlet
● After powered on, the display lights up. Users can operate the
unit through the buttons under the display
.
● Emptying: If the unit needs cleaning, moving etc, the tank
should be emptied.
Method: See Fig.5-2:
● Operation without water in water tank may result in the damage
of auxiliary e-heater. In case of such damage, the manufacturer
will not be liable for any damages caused by this issue.
3) Provisions made to shelter the area from water damage.
Metal drain pan installed and piped to an adequate drain.
4) Sufficient room to service the water heater.
5) Sufficient air for the heat pump to function, the water heater
must be located in a space >15m³, and must have unrestricted
air flow.
6) The unit cannot be placed into any type of closet or small
enclosure.
7) The site location must be free from any corrosive elements in
the atmosphere such as sulfur, fluorine, and chlorine. These
elements are found in aerosol sprays, detergents, bleaches,
cleaning solvents, air fresheners, paint, and varnish removers,
refrigerants, and many other commercial and household
products. In addition excessive dust and lint may affect the
operation of the unit and require more frequent cleaning.
8) The ambient air temperature must be above 5ºC and below
43ºC
.
If the ambient air temperature falls outside these upper
and lower limits the electrical element will be activated to
meet the hot water demand.
4.4.2 Water System Piping
1) PTR valve (Temperature and pressure relief valve) properly
installed with a discharge pipe run to an adequate drain and
sheltered from freezing.
2) All piping properly installed and free of leaks.
3) Unit completely filled with water.
4) Tempering valve installed per manufacturer’s instructions.
Condensate Drain Line Installed.
Must be located with access to an adequate drain or
condensate pump.
Condensate drain lines installed and piped to an adequate
drain or condensate pump.
4.4.3 Electrical Connections
1) The water heater requires 220~240 VAC for proper operation.
2) Wiring size and connections comply with all local applicable
codes and the requirements of this manual.
3) Water heater and electrical supply are properly grounded.
4) Correctly sized overload fuse or circuit breaker protection
installed.
4.4.4 Post Installation Review
1) Understand how to use the User Interface Module to set the
various modes and functions.
2) Understand the importance of routine inspection/maintenance
of the condensate drain pan and lines. This is to help prevent
any possible drain line blockage resulting in the condensate
drain pan overflowing.
3) IMPORTANT: Water coming from the plastic shroud is an
indicator that both condensation drain lines may be blocked.
Immediate action is required.
4) To maintain optimal operation check, remove and clean the air
filter.