Maxwell MGBWA070, MGBWA090, MGBWA0100 Owner's Manual
MGBWA070
MGBWA090
MGBWA0100
Volcan Series
Thank you for choosing "ENERGY" gas boiler,a wall hung boiler of the latest generation with elegant
style and advanced technology.
L1PB series is a high-efficiency boiler for heating and domestic hot water production,running on natural
gas, LPG or Artificial coal gas.
Thanks to the microprocessor control and adjustment system with advanced self-diagnosis,unit
operation is for the most part automatic.The power for heating is automatically governed by the control
system.The power for hot water is automatically and continually governed to ensure the fast delivery
and comfort under all operating conditions.
All you need to do is just set the temperature of the room and set the desired outlet temperature for the
hot water.The intelligent system will do it for you.
We hope you can enjoy the comfortable and safety experience our boiler brings you.
1. The gas pipeline of the device must be airproofing, only gas-pipe installation qualified
company can do it.
2. If there is any defect in the installation of exhausted air discharging system, it will be
possible for the exhaust regorging, incompletely burning or even CO toxicosis and
explosion. When the flue is installed, please check it carefully and keep it position.
3. The device is with system release valve and tap water release valve. If the water
pressure of system and water supply is exceeded, water will be discharged from the water
releasing port. So a pipe needs to be installed to the port, in order to protect your living
environment.
4. In the condition of freezing possible condition, if the device is not used or it can not be
repaired in time, please discharge all the system water(there should be a water
discharging valve in the lowest point of water pipe system)
5. If there is something wrong with the power supply cord, only the manufacturer, or after
service department or some qualified technician can change it to avoid the danger occur.
6. This device should be installed with smallest service port.
Product Characteristics........................................................... 03 - 06
Technical Parameter..................................................................................... 04
Inside structure of gas boiler................................................................. 05 - 06
For Users' Manipulation.............................................................07-14
Safty and Caution Instruction........................................................................ 07
water filling................................................................................................... 08
Affusion, and Drainage...................................................................................08
Circuit digram of boiler................................................................................. 10
User manual........................................................................................... 11 - 13
Malfunction display and solutions.................................................................. 14
For Installation and maintenance........................................15 - 22
Unpacking, Inspection and Acceptance...................................................... 15
The connection of the water system............................................................. 17
Installation of gas pipe and coaxial flue gas pipe......................................... 18
Heating system............................................................................................... 20
Domestic hot water system..............................................................................21
Heating comfortably
Adjusting the burning efficiency which makes the
heating more comfortable. Apart from the
radiator,Household air conditioning system and
floor radiating heating system can match the
boiler.
Excellent Domestic hot water
Supply
13.5Kg/m water flow can meet your daily demand.
Equipped with the latest intelligent temperature
system ,the boiler could adjust the temperature of
water even in frequent change of water pressure
conditions and low pressure conditions.
Optional heat water tank can supply hot water for
several rooms.
Low noise, quick installation and easy operation.
Winter/Summer-mode Switch button, set the
heating and domestic hot water temperature at
your request.
Propotional switch can adjust the flame in order to
control the temperature of heating system water
and domestic water.
Temperature of water flow display,malfunction
code display.
Safety valve will open automatically to release
pressure to protect the the boiler from damage
when the water pressure reaches to 0.3 Mpa.
Temperature extremes protection.The boiler will
terminate the working program when overheated
or a temperature sensor malfunction, occurs.
Negative-pressure hermetically firing Jess
indoor oxygen consumption.
The boiler will stop working automately when the
inlet tube and outlet tube is blocked. Only when
malfunction is solved could the boiler be
restarted. Ionization flame monitoring device will
work to shut down the operation in case the
ignition failure occurs at the beginning or during
the process of combustion.
Freezing protection.If the temperature of water
in heating system drops below 8 centigrade
degree,the circulation pump will begin to work
and will not stop until the temperature of water
raises to 10 centigrade. When the temperature
drops to 5 centigrade, the heating system will
work until it reaches 30 centigrade. In certain
conditions, the freezing protection function may
be effected when the difference of temperature
between surroundings and that of pipeline is
overlarge.
Model MGBWA070 MGBWA090 MGBWA0100
Gas type Natural gas, LPG, Artificial coal gas
Rated input capacity (Btu/h) 70.000 90.000 100,00
Rated output capacity (Btu/h) 63.000 81.000 93.300
Min. input capacity for heating (Btu/h) 36.000 38.000 38.000
Min. output capacity for heating (Btu/h) 32.000 34.200 35.800
Min. input capacity for hot water (Btu/h) 33.000 33.500 33.500
Min. output capacity for hot water (Btu/h) 27.600 27.600 27.600
AFUE (%) 90 90 93,3
Working pressure of heating system 7~43 7~43 7~43
Max. heating water temperature (Fº) 194 194 194
Adjustment range of heating water temperature (Fº) 86~176 86~176 86~176
Rated electric power (W) 125 125 125
Electrical protection (IP) X4D X4D X4D
Expansion tank volume (L) 6 6 8
Expansion tank prelead (PSI) 14,5 14,5 14,5
2
Heating area (square Ft )
500~1650 650~2200 850~2700
Power supply 110V/60Hz 110V/60Hz 110V/60Hz
Reference Natural Gas (12T) consumption (gom) 4~8.5 5.4~11.4 6.3~13.3
Lpg (20Y) (Lb/h) 1.65~3.45 2.2~4.6 2.55~5.4
Net weight (Lb) 80 83 88
TOTAL LENGTH OF THE LOOP CIRCUIT FT 230 230 230
PHISICAL SIZE 29X18X10 29X18X10 29X18X13
BURNERS (# ORIFICE) 9 12 14
PUMP MAX HEAT FT 16 16 19
CONNECTION PIPE BOILER 3/4 3/4 3/4
CONNECTION GAS
HEATING SYSTEM
3/4 3/4 3/4
Model MGBWA070 MGBWA090 MGBWA0100
Max. working pressure (PSI) 100 100 100
Min. working pressure (PSI) 7,25 7,25 7,25
Hot water capacity with ∆ t=45 F (Lb/min) 23 30 35
Hot water temperature adjustment range ( ±3 Fº) (Fº) 86~140 86~140 86~140
Min. hot water flow for starting (Lb/min) 5,5 5,5 5,5
Limited flow (Lb/min) 22 22 22
Natural gas (PSI) 0,3 0,3 0,3
LPG (PSI) 0,4 0,4 0,4
Artificial Coal Gas (PSI) 0,15 0,15 0,15
CONNECTION PIPE DOMESTIC HOT WATER
DOMESTIC HOT WATER SYSTEM
1/2 1/2 1/2
Model MGBWA070 MGBWA090 MGBWA0100
Max. working pressure (PSI) 100 100 100
Min. working pressure (PSI) 7,25 7,25 7,25
Hot water capacity with ∆ t=45 F (Lb/min) 23 30 35
Hot water temperature adjustment range ( ±3 Fº) (Fº) 86~140 86~140 86~140
Min. hot water flow for starting (Lb/min) 5,5 5 1/2 5 1/2
Limited flow (Lb/min) 22 22 22
Natural gas (PSI) 0,3 0,3 0,3
LPG (PSI) 0,4 0,4 0,4
Artificial Coal Gas (PSI) 0,15 0,15 0,15
1. Cold water inlet
2. Gas valve
3. Hot water temperature sensor
4. Water button
5. Burner
6. Electrode for ignition
7. Electrode for flame detection
8. Heat Exchanger
9. Distributor
10. Fan
11. Smoke sampling
12. Air sampling
13. Flow limited loop
14. Valve of air pressure difference
15. Heating water temperature sensor
16. Limited temperature sensor
17. Expansion tank
18. Automatic air venting valve
19. Pump
20. Safe valve
21. Automatic bypass-valve
22. Water venting valve
G . Gas inlet
U. Hot water inlet
E. Cold water inlet
R. Heating water inlet
M. Heating water outlet
06
1.Cold water inlet
2.
Hot water temperature sensor
3. Automatic bypass-valve
4.
Heating water temperature sensor
5.
electromagnetism three way valve
6. Gas valve
7. Burner
8. Electrode for ignition
9.
Electrode for flame detection
10.
Limited temperature sensor
11. Heat Exchanger
12. Distributor
13. Fan
14. Smoke sampling
15. Air sampling
16. Flow limited loop
17.
Valve of air pressure difference
18. Expansion tank
19. Safe valve
20. Plate heat exchanger
21. Water pressure switch
22.
Automatic air venting valve
23. Water button
24. Pump
25. Water venting valve
G . Gas inlet
U. Hot water inlet
E. Cold water inlet
R. Heating water inlet
M. Heating water outlet
Gas Boiler Inside Structure
Gas boiler system priciple and chart of pump
Inside Structure of Boiler
1、Hot water temperature
2、Cold water inlet
3、
Automatic bypass-valve
4、Electromagnetism three way valve
5、Plate heat exchanger
6、Heating water temperature sensor
7、Gas valve
8、Burner room
9、Electrode for ignition
10、
Electrode for flame detection
11、Limited temperature sensor
12、Heat exchanger
13、Burner room
14、Fan
15、
Valve of air pressure difference
16、Expansion tank
17、
Automatic air venting valve
18、Pump
19、Water pressure switch
20、Safe valve
21、Water button
G、Gas inlet
U、Hot water inlet
E、Cold water inlet
R、Heating water inlet
M、Heating water outlet
7
6
5
4
3
2
1
0
100 200 300 400 500 600 700 800 900
10001100 120013001400
M U G E R
15
16
17
18
19
20
21
24
25
23
22
14
13
12
11
10
9
8
6
5
4
3
2
1
7
M U G E R
16
17
18
19
20
21
24
25
23
22
15
14
13
12
11
10
9
8
6
5
4
3
2
1
7
M RGU E
12
13
14
15
16
17
18
19
20
21
11
10
9
8
7
6
5
2
4
1
3
Total Head(mH20)
Discharge (Kg/h)
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