14
Installation & Owner‘s Manual
4.1 Water affusion before operation
4. 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.4-1
Fig.4-2
Emptying
Drainpipe shut-off valve
Close
After emptying, please replace the nut of
drainpipe.
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.4-1
4.2 Trial- running
Checking list before trial-running.
Correct installation of the system.
Correct connection of water/air piping and wiring;.
Condensate draining smoothly well insulation work for all
hydraulic part.
Correct power supply.
No air in the water pipeline and all valves opened.
Effective electric leakage protector installation.
Sufficient inlet water pressure (between 0.15MPa and 0.65MPa).
4.2.1 Checking list before commisionning.
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
CAUTION
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.4-2:
Operation without water in water tank may result in the
damage of auxiliary e-heater. Due to such damage,
manufacturer will not be liable for any damages caused by
this issue?
1)
2)
3)
4)
5)
6)
7)
8)
System Structure Figure
Unit has two kinds of heat sources: heat pump(compressor)
and electric heater.
Unit will automatically select heat sources to heat water to the
target temperature.
Water Temperature Display
The temperature shown on the display depends on the upper
sensor. So it is normal that the display temperature has reached
to target temperature but compressor still running, because the
lower water temperature does not get to target temperature.
4.2.2 About Running
1)
2)
Tank
Temperature
sensor(T5U)
Electric heater
Water inlet
Water outlet
Model: HWHM-TDF190/1.5-H31
Model: HWHM-TNF190/1.5-H31
Model: HWHM-TDF300/3.5-H31
HWHM-TDF300/3.5E-H31
Fig.4-3
Temperature
sensor(T5L)
Tank
Temperature
sensor
Electric heater
Water inlet
Water outlet
Temperature
sensor
Tank
Temperature
sensor
Electric heater
Water inlet
Water outlet