Midea LRSJF-V N1, Owner'S Manual

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NOTE
● 12 hours preheating is imperative after turn on the power
switch. Please do not shut down the power when the unit
is supposed to stop running in 24h or shorter time. (This is
to warm the crankcase heat box to avoid compulsive start
of condenser.)
● Pay attention not to block the air inlet and outlet.
Blocks may decrease the efficiency of the unit or startup the
protector, which will stop running.
3. OPERATION RANGE
Use the system in the following temperature for safe and
effective operation. The Max operation temperature for
the heat pump. (Cooling/Heating)
Cooling operation
Heating operating
Mode
Temperature
Outdoor
temperature
Water
temperature
15
℃～
43
℃
7 22
℃～ ℃
NOTE
1.
2.
3.
If heat pump is used outside the above conditions, it may
cause the unit to function abnormally.
The phenomenon is normal that the surface of indoor unit
may condense water when the relative larger humidity in
room, please close the door and window.
Optimum performance will be achieved within these
operating temperature range.
15
℃～
55
℃
Table 3-1
-15
℃～
43
℃
3
4. OPERATION AND PERFORMANCE
4.1 Protection Equipment
The protection equipment may be activated in following conditions:
● The air inlet or air outlet of outdoor unit is blocked.
● Strong wind is Continuously blowing to the air outlet of the
outdoor unit.
● Too much rubbish adhere to the filter in the indoor unit
● The air outlet of indoor unit is choked
Cooling Operation
Heating Operation
When the protection equipment starts, please shut down the
manual power switch, and restart operation after problem is
solved.
This Protection Equipment will enable the Heat Pump to stop
when the Heat Pump is to be directed running compulsively.
When the Protection Equipment is activated, the Operation
Indicator still lights while the Heat Pump is not running. But the Check
Indicatior Lights.
NOTE
4.2 About power cut
If power is cut during operation, stop all the operation immediately.
Power comes again. The lamp on the display panel of indoor unit
flashes. And then unit will auto-restart.
● Mishandling in operation:
If mishandling happens because of lighting or mobile wireless,
please shut off the manual power switch, and turn on again, then
push the ON/OFF button.
4.3 Heating capacity
The heating operation is a heat-pump process that heat will be
absorbed from outdoor air and released to indoor water. Once
the outdoor temperature is decreased, heating capacity
decreased corredpindingly.
Other heating equipment is suggested to be used together when
outdoor temperature is too low.
In some extreme cold upland that buy another inddoor unit
equipped electrical heater will obtain better performance.(Refer
to indoor unit owner’s manual for details)
NOTE
If the heat pump malfunction occurs because of disturb,
pleasereconnect the heat pump to power, then turn on it
again.
1.
2.
owner's manual
A protection feature prevents the heat pump from being
activated for approximately 3 minuites when it restarts
immediately after operation.
The the indoor unit in the same system can not run cooling
and heating at the same time.
4.6 Features of heating operation
Water will not become hot immediately at the beginning of
the heating operation, 3~5 minutes ago (depends on the indoor
and outdoor temperature), until the indoor heat exchanger
become hot, then becomes hot.
During operation, the fan motor in the outdoor unit may stop
running under high temperature.
4.7 Defrost in the heating operation
During heating operation, outdoor unit sometimes will frost. To
increase efficiency, the unit will start defrosting automatically
(about 2~10 minutes), and then water will be drained out from
outdoor unit.
During defrosting, the fan motors in the outdoor unit will
stop running.
If the Heat Pump Administrator has set running mode, then
the heat pump can not run on modes other than the presetted.
Standby or No Priority will be displayed in the Control Panel.
4.4 Three-minute protection feature
4.5 Cooling and heating operation
■
■
The motor in Indoor Unit will continue running for 20~30
seconds for to remove residual heat when the Indoor
Unit recoeiving OFFcommand during heating operation.