Monitor MWH180EX Скачать руководство пользователя страница 19 | Manualshive

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2-3 SUGGESTED PIPING-BASIC INSTALLATION

Minimum 3/4"
Hot water supply line

Minimum 3/4"
Cold water supply line

Minimum 3/4"
Gas supply

Shut off valve

Valve 3

Valve 4

Pressure relief valve

Drain

Union

Union

Union

This drawing is intended only as a guide.
It does not imply compliance with local building codes.
Installation must be done in accordance with local building
codes and may vary depending on installation location.
Confer with local building officials before installation.

Valve 2

Valve 1

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Содержание MWH180EX

Страница 1: ...MWH180EX Service Manual Instantaneous Gas Water Heater Residential Outdoor Unit...

Страница 2: ...PIPING 21 2 9 PRESSURE RELIEF VALVE 22 2 10 ELECTRICAL CONNECTION 22 2 11 WIRING DIAGRAM 24 2 12 DIAGNOSTIC POINTS 26 2 13 SCHEMATIC DIAGRAM 27 2 14 WIRING REMOTE CONTROLLER 28 2 15 MAIN REMOTE CONTR...

Страница 3: ...design of the combustion burners allows the value of NOx to be lower than 55 ppm 3 Self diagnostic function Detects the scale clogging of the heat exchanger assembly warning Detects the blocked exhau...

Страница 4: ...F Noise level 49dB NOx 55ppm Max Safety devices Flame failure Flame rod Over heat switch 210 F Over heat limit 203 F Thermal fuse for heat exchanger 363 F Over current fuse 5A Automatic frost protect...

Страница 5: ...0 6 0 7 0 8 0 100 95 110 120 130 140 150 160 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 0 100 95 110 120 130 140 150 160 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 0 100 95 110 120 130 140 150 160 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8...

Страница 6: ...Heat Exchanger Thermistor Manifold Assembly Flame Rod Electrode 6 Modulation Valve Unit Gas Control Assembly Over Heat Switch bi metal switch 16 26 Frost Sencing Switch bi metal switch 7 8 9 10 Combu...

Страница 7: ...ce The plunger stops moving and stays at a certain position when the Upward and Down ward force are balanced As the plunger remains at the position the valve position of the Modulating Solenoid Valve...

Страница 8: ...6 Diaphragm Plunger Plunger spring Coil LP 13A 21 21 10 20 96 5 82 OUT 2 OUT1 127 7 UP34 33C 13A Modulating Solenoid Valve Solenoid Valve Filter IN Pressure check hole...

Страница 9: ...such temperature drops If the water flow is greater than the heater capacity a signal from the PCB activates the water flow control device s motor stepping motor In response to this operation the valv...

Страница 10: ...ximately 95 000 BTU is re quired both Gas Solenoid Valve 1 and Gas Solenoid Valve 2 are opened to burn with rich and lean burners while the gas supply is controlled by the Gas Solenoid Valve When the...

Страница 11: ...The system is activated to blow the fuse at 363 F 184 C 4 Over heat switch residual Even if the heat exchanger assembly is over heated by no water combustion every gas path is closed to avoid risks A...

Страница 12: ...residual hot water is detected by the thermistor of the can body when hot water flow is stopped The criterion for judging scale build up varies depending on combustion capacity 4 LC alarm and set tem...

Страница 13: ...understand the installation manual to carry out the installation as specified for proper and safe usage A competent dealer or plumber should perform the complete installation including placement plum...

Страница 14: ...aution for flammable items Do not touch water heater during or immediately after operation Do not use any gas other than specified on the sticker MWH180EX ONLY FOR USE WITH REFER TO THE LOCAL GAS AUTH...

Страница 15: ...leaving about 1 8inches 4mm length to hook on 2 Hook the center hole of the wall hanging bracket onto the screw and securely fix the unit with 4 screws Screw for wall hanging Wall hanging bracket Scre...

Страница 16: ...one easily Secure space not only in front but also under the unit Do not install the unit over other combustion appliances such as gas cooking stove or a range Oil residue and dust in the air can adhe...

Страница 17: ...sliding window Do not install the unit so that the exhaust gas directly hits against any reinforced glass plate The glass may crack or break due to the exhaust heat Do not install the unit near plants...

Страница 18: ...16 23 1 32 585mm 22 5 8 575mm 13 25 32 350mm 3 15 16 100mm 2 3 8 60mm 1 5 16 33 5mm 4 15 32 113 5mm 3 13 16 97mm 2 25 32 71mm 3 9 16 97mm 1 31 32 50mm 6 1 2 165mm 19 32 15mm 15 32 12mm 2 2 DIMENSIONS...

Страница 19: ...ve Valve 3 Valve 4 Pressure relief valve Drain Union Union Union This drawing is intended only as a guide It does not imply compliance with local building codes Installation must be done in accordance...

Страница 20: ...supply Union Shut off valve Union This drawing is intended only as a guide It does not imply compliance with local building codes Installation must be done in accordance with local building codes and...

Страница 21: ...ches 15cm for appliances 10 000 Btuh 3kW 9 inches 23cm for appliances 10 000 Btuh 3kW and 50 000 Btuh 15kW 12 inches 30cm for appliances 50 000 Btuh 15kW 6 inches 15cm for appliances 10 000 Btuh 3kW 9...

Страница 22: ...7 5 2 6 9 5 5 9 0 5 1 7 4 0 4 4 5 1 4 3 9 3 0 2 3 7 7 2 2 4 3 9 2 8 7 0 2 8 9 6 1 2 7 4 1 7 1 3 1 3 0 2 1 4 1 1 1 2 4 0 1 3 8 9 3 3 9 2 6 7 1 6 6 e z i S e p i P t e e F n i h t g n e L 0 1 0 2 0 3 0...

Страница 23: ...sten tightly Make sure to conduct gas leakage test before operating MWH 180EX 2 7 GAS PIPING 2 8 WATER PIPING Install a manual water control valve in the water inlet connection of MWH 180EX A union sh...

Страница 24: ...nstall any depressurizer or restriction device in the relief line Manually operate the pressure relief valve at least once a year to check if it functions properly 2 10 ELECTRICAL CONNECTION MWH 180EX...

Страница 25: ...tivate resulting in possible freezing damage Do not let the power cord contact the gas piping The grounding screw is located in the junction box attached to the outside of bottom plate To prevent elec...

Страница 26: ...24 2 11 WIRING DIAGRAM...

Страница 27: ...25...

Страница 28: ...g n i v l o v e R e u l B e g n a r O V 6 2 C D n o i t i d n o C g n i v l o v e R e u l B e t i h W V 2 1 8 C D n o i t i d n o C g n i v l o v e R d o R e m a l F 3 n e e r G e t i h W V 0 5 1 0 5...

Страница 29: ...lve Solenoid Valve SV1 Burner Water Filter Water Flow Control Device Igniter Thermal Fuse Over Heat Switch Outgoing Thermistor Surge Protector PCB Fan Motor Flame Rod Remote Controller Heat Exchanger...

Страница 30: ...l only depending on the distance from MWH 180EX to the remote controllers Remote controller connection terminals Remote controller cable Cable clamp The appliance should always be disconnected from th...

Страница 31: ...ve a combustion appliance like hot plate or a kitchen range The heat will cause electrical component problems or deform the exterior Install Main remote controller out of the reach of steam water drop...

Страница 32: ...covers with catching the bottom corner s slot with nail Do not tighten the screws excessively as the screw hole may be damaged In case of mounting the remote controller on tile cement or mortar use a...

Страница 33: ...tion or the unit will not be used for an extended time the residual water in the unit and the pipe may freeze and damage the unit or the residual water in the heat exchanger may deteriorate Be sure to...

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