Midea JSQ Instruction Manual

Instruction Manual for Midea Domestic
Instantaneous Gas Water Heater

Flue Gas Water Heater

The diagram above is just for reference. Please take the

appearance of the actual product as the standard.

Please read the instruction manual carefully before installing

and operating this water heater.

Production License No.: XK21-005-00166

GD Midea Kitchen and Bath Appliances MFG Co., Ltd

Special Advice:

When the water heater is working, gas combustion would consume a large amount of oxygen and exhaust much carbon monoxide. In view of the
great harm to the human health or even death caused by excessive carbon monoxide inhalation, the company sincerely advises all users that:

Do not install the water heater in the bathroom;

Install and use the water heater strictly in accordance with the requirements stipulated in the instructions; install a smoke pipe to exhaust

waste gases to the outdoor;

Make sure the room installed with the water heater has enough fresh air and is well-ventilated.

Table of Contents

Functional Features:

Functional Features……………………………………………………2

Model Instruction……………………………………………………2

External Structure……………………………………………………3

Technical Performance Parameters………………………………3

Dimensions……………………………………………………………3

Installation of the Water Heater……………………………………4

Using Methods ………………………………………………………………2

Caution

………………………………………………………………2

Troubleshooting ………………………………………………………3

Internal Wiring Diagram

…………………………………………………3

Warranty ……………………………………………………………………3

Product Installation Service Card ………………………Back Cover

1. Water Control Automatic Ignition: Simply open the water valve and
the igniter will ignite automatically with the hot water immediately
available.

2. Water Temperature Regulation: Regulate the water temperature at
any temperature.

3. Flue-type Exhaust Device: Exhaust waste gases outside to maintain
the indoor air fresh.

4. Season Change: The model with a season change knob can
increase the adjustable outlet water temperature range by operating
the season change knob, thus saving gas in summer.

5. Low Water Pressure Start-up: Low start-up water pressure with a
broad scope of application.

6. Steady Water Volume: Effectively avoid the impact of water pressure
fluctuation on the water volume and the outlet water temperature; and
prevent the outlet water not hot due to too high water pressure.

7. Flame-out Protection: The water heater will automatically cut off the
gas to ensure the gas not leaked when it flames out accidentally
during the use.

8. Water-gas Linkage Control: The water heater will automatically stop
combustion and shut down when the supply of tap water is suspended
or the water valve is shut off.

9. Over-pressure Protection: When the pressure of the water supply is
too high, the safety valve of the water heater can automatically relieve
pressure to avoid any damage to the water heater.

10. Anti-freezing Protection: When the water heater is used in cold
areas where the outdoor temperature is below 0

°C

, the anti-freezing

drain valve

is set to drain the water from the water heater to avoid any
damage to the water heater caused by the water freezing in the water
heater.

11. Thermal Protection: The water heater will automatically cut off the
gas and stop working when the temperature of the water flowing out
from the water heater exceeds 90

°C

or dry burning occurs.

12. 20-minute Timing Protection: The water heater will automatically
cut off the gas and power off after a 20-minute continuous operation.
The water heater can continue working only after a restart.

*13. Outlet Water Temperature Display: A specific outlet water

temperature display function.

14. High Energy Efficiency Grade: The energy efficiency grade conforms
to the requirements of the National Standards on Energy Efficiency
(GB20665-2006). The thermal efficiency of grade2 energy efficiency is
>88% and that of grade 3 >84%. See the energy efficiency label on the
front side of the water heater.

Model Instruction

① is the product code of the domestic gas instantaneous water heater;
② D is the gas exhaust mode: Flue-type;
③ represents the rated thermal load (kW);
④ represents the yield capacity of the hot water (kg/min);
⑤ represents the product serial number.

For example: JSD12-6DB represents that

1. The product is a domestic gas instantaneous water heater;

2. The gas exhaust mode is flue-type;

3. The rated thermal load is 12kW;

4. The yield capacity of the hot water is 6kg/min;

5. The product is a DB series product.

Note: This manual is applicable to the flue gas water heaters (JSD*-* * *)
manufactured by this company.

* is peculiar to certain models.

External Structure:

① Viewport
② Season Change Knob
③ Water Temperature Regulation Knob
④ Drain Valve
⑤ Battery Case

⑥ Cold Water Inlet
　⑦ Hot Water Outlet
　⑧ Gas Inlet
*⑨ Temperature Display
　⑩ Firepower Regulation Knob

* is peculiar to certain models.

Note: All the diagrams displayed in this manual are based
on the appearance of the standard gas water heater, just
for illustration. The actual appearance is subject to the
purchased model.

Technical Performance Parameters

Dimensions

Model

Gas Type

Rated Gas Pressure

Rated Thermal Load

Control Mode

Exhaust Mode

Ignition Mode

Applicable W ater Pressure

(

Rated Yield Capacity of

the Hot Water

Temperature Rise: 25k)

Gas Inlet

Cold Water Inlet

Hot Water Inlet

Dimensions

(L×W×H)

Net Weight

Diameter of the

Smoke Vent

JSQ ①- ②* Series

Liquefied Petroleum Gas, Natural Gas and

Manufactured Gas

Liquefied Petroleum Gas: 2800Pa

Natural Gas: 2000Pa

Manufactured Gas: 1000Pa

kW

Outlet Control

Flue-type

Water Control Automatic Continuous Pulse Ignition

See the rating plate on the water heater for details

② kg/min

G 1/2

G 1/2

G 1/2

See the paper pasted on the packing box for details

See the paper pasted on the packing box for details

Con­nector
Specifi­cations

Note: ① can be 12\14\16\20\22\24\... for different models.
② can be 6\7\8\9\10\11\12\... for different models.

6 litre: Φ90mm 8 litre or above: Φ 110mm

7 litre: Φ 90mm or Φ110mm

Installation of the Water Heater

Prior to the installation of the water heater, please contact
the local gas company or the gas management department
to select qualified gas pipe, pressure regulating valve, steel
cylinder, clamp, smoke exhaust pipe and so on. You must
entrust a qualified and specialized technician to install the
gas water heater. (Note: The user cannot install the gas
water heater himself/herself, since an improper installation
can bring a great impact on the safety performance, or even
threaten the user’s life.) Prior to the installation, please
reconfirm whether the type of gas you are using agrees with
the type of gas specified on the rating plate of the water
heater.

This water heater is a flue gas water heater, which can be
used only after all exhaust gases vented to the outdoors in
strict accordance with the requirements. It is forbidden to
use this water heater if the smoke exhaust pipe fails to be
correctly installed according to the requirements in this
manual.

Since each user has his/her own building structure, this
company cannot provide a uniform smoke exhaust pipe. The
user can purchase his/her proper smoke exhaust pipe based
on his/her own building structure.

Installation Requirements

1. Do not install the water heater in bathrooms;

2. Do not install the water heater in a place where there is
strong wind, otherwise the flame of the water heater will
be blown out or an incomplete combustion will occur.

3. Do not install the water heater in the outdoors.

4. Do not install the water heater in a confined room. Install
it in a well-ventilated room with a volume more than

7.5 m³. There should be an air inlet with an area more
than 0.06㎡connected to the outdoors. A smoke exhaust
pipe must be also installed.

5. Install the water heater in a place where the line of sight
and the viewport are at the same level, that is,

1.55~1.65m above the ground, and where the water
heater is distant from combustibles.

6. Do not place any electric open wire, electric appliance or
gas pipeline above the installation site of the water
heater. Keep a horizontal distance more than 40cm
between the water heater and electric appliances. Do
not install any gas appliance such as the gas oven and
the gas range underneath the water heater.

7. Keep a distance greater than 150mm between the water
heater and the surrounding walls and the ceiling. Build
the installation site with noncombustible materials.
Otherwise, insulate the water heater with a heat
insulating panel. The distance between the insulating
panel and the surrounding walls should be greater than
10mm.

8. Install an inlet valve in the water inlet pipe of the water
heater.

9. Place the vent of the smoke exhaust pipe in the outdoors.

10. For liquefied petroleum gas users, select qualified gas
pressure regulating valves and hoses to ensure the
water heater a proper operation and security use; for
pipeline gas users, ask the gas company or the relevant
management authority to connect gas pipes.

After the flue gas water heater is installed with a smoke
exhaust pipe, during the use, do not turn on any
mechanical ventilation equipment such as the smoke
exhaust ventilator and the exhaust fan in the room where
the water heater is installed or to which the water heater is
connected.

Note: The connectors at the bottom would be in a

different order for different models. Make the real
object as the standard during the connection.

Shower
Nozzle

Smoke

Exhaust Pipe

Water Heater

Outlet Pipe

Water Inlet

Air Intake

Air Intake

Outlet Valve

Outlet
Valve

Inlet Valve

Gas Intake Pipe

Water Source

150mm
above

150mm
above

150mm
above