Gebruiksaanwijzing /service van het product MDG75MNV van de fabrikant Maytag
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MDG75PNH and MDG75MNV Installa tion Manual 1,000 CFM / Phase 7 with S.A.F .E. System Part No. 113394 RET AIN THESE INSTRUCTIONS IN A SAFE PLACE FOR FUTURE REFERENCE W ARNING: For your safety the information in this manual must be followed to minimize the risk of fire or explosion or to prevent property damage, personal injury or death.
Retain This Manual In A Safe Place For Futur e Refer ence This product embodies advanced concepts in engineering, design, and safety . If this product is properly maintained, it will provide many years of efficient, trouble free, and most importantly safe operation.
IMPOR T ANT YOU MUST DISCONNECT AND LOCK OUT THE ELECTRIC SUPPL Y AND THE GAS SUPPL Y BEFORE ANY COVERS OR GUARDS ARE REMOVED FROM THE MACHINE TO ALLOW ACCESS FOR CLEANING , ADJUSTING , INST ALLA TION, OR TESTING OF ANY EQUIPMENT PER OSHA (Occupational Safety and Health Administration) ST ANDARDS.
W ARNING The dryer must never be operated with any of the back guards, outer tops, or service panels removed. PERSONAL INJURY OR FIRE COULD RESUL T . IMPOR T ANT PLEASE OBSER VE ALL SAFETY PRECAUTIONS displayed on the equipment and/or specified in the installation manual included with the dryer .
Table of Contents SECTION I SAFETY PRECAUTIONS ........................................................................................ 3 SECTION II SPECIFICA TIONS ......................................................................................
SECTION VII PROCEDURE FOR FUNCTIONAL CHECK OF REPLACEMENT COMPONENTS ................................................................ 3 6 SECTION VIII MANUAL RESET BURNER HI-LIMIT INSTRUCTIONS ............................... 3 8 A . Phase 7 ..........
1 13394-7 Maytag Co. 3 SECTION I SAFETY PRECAUTIONS W ARNING: For your safety , the information in this manual must be followed to minimize the risk of fire or explosion or to prevent property damage, personal injury , or loss of life. W ARNING: The dryer must never be operated with any of the back guards, outer tops, or service panels removed .
4 Maytag Co. 1 13394-7 W ARNING: DO NOT use heat for drying articles that contain plastic, foam, sponge rubber , or similarly textured rubber materials.
1 13394-7 Maytag Co. 5 SECTION II SPECIFICA TIONS A. SPECIFICA TIONS GAS Shaded areas are stated in metric equivalents 2/5/04 * ALL reversing dryers are supplied with two (2) 3-phase (3ø) motors standard: a 1/2 hp (0.37 kW) blower motor and a 1/2 hp (0.
6 Maytag Co. 1 13394-7 NOTE: The manufacturer reserves the right to make changes in specifications at any time without notice or obligation. S pecifications – Gas.
1 13394-7 Maytag Co. 7 B. COMPONENT IDENTIFICA TION 1. Dryer Front V iew Illus. No. Description 1 Controls 2 Control (top access) Door Assembly 3 Main Door Assembly 4 Lint Compartment Area (lint scree.
8 Maytag Co. 1 13394-7 2. Dryer Rear V iew Illus. No. Description 1 Heating Unit 2 Electric Service Relay Box 3 Basket (tumbler) Bearing Mount Assembly 4 Idler Bearing Mount Assembly 5 Blower Motor As.
1 13394-7 Maytag Co. 9 SECTION III INST ALLA TION PROCEDURES Installation should be performed by competent technicians in accordance with local and state codes. In the absence of these codes, the installation must conform to applicable American National Standards: ANSI Z223.
10 Maytag Co. 1 13394-7 10 . The dryer must be installed with provisions for adequate combustion and make-up air supply . CAUTION: This dryer produces combustible lint and must be exhausted to the outdoors. Every 6 months, inspect the exhaust ducting and remove any lint buildup.
1 13394-7 Maytag Co. 11 C. DR YER ENCLOSURE REQUIREMENTS Bulkheads and partitions should be made of noncombustible materials and must be located a minimum of 12-inches (30.
12 Maytag Co. 1 13394-7 D. FRESH AIR SUPPL Y REQUIREMENTS When the dryer is operating, it draws in room air , heats it, passes this air through the basket (tumbler), and exhausts it out of the building. Therefore, the room air must be continually replenished from the outdoors.
1 13394-7 Maytag Co. 13 E. EXHAUST REQUIREMENTS 1. General Exhaust Ductwork Information Exhaust ductwork should be designed and installed by a qualified professional.
14 Maytag Co. 1 13394-7 IMPOR T ANT : Exhaust back pressure measured by a manometer in the exhaust duct must be no less than 0 and must not exceed 0.7 inches (1.74 mb) of water column (W .C.). NOTE: When the exhaust ductwork passes through a wall, ceiling, or roof made of combustible materials, the opening must be 2-inches (5.
1 13394-7 Maytag Co. 15 IMPOR T ANT : For extended ductwork runs, the cross section area of the ductwork can only be increased to an extent. When the ductwork approaches the maximum limits noted in this manual, a professional heating, ventilating, and air -conditioning (HV AC) firm should be consulted for proper venting information.
16 Maytag Co. 1 13394-7 IMPOR T ANT : For extended ductwork runs, the cross section area of the ductwork can only be increased to an extent. When the ductwork approaches the maximum limits noted in this manual, a professional heating, ventilating, and air -conditioning (HV AC) firm should be consulted for proper venting information.
1 13394-7 Maytag Co. 17 IMPOR T ANT VENTING REMINDERS 1. Ductwork size and installation should be done by a qualified professional. 2. The dryer must be exhausted to the outdoors. 3. Ductwork should be routed as short as possible to the outdoors with as few elbows as possible.
18 Maytag Co. 1 13394-7 F . ELECTRICAL INFORMA TION 1. Electrical Requirements ALL electrical connections must be made by a properly licensed and competent electrician . This is to ensure that the electrical installation is adequate and conforms to local and state regulations or codes.
1 13394-7 Maytag Co. 19 2. Electrical Service Specifications * AWG Stranded Wire Type...size wire as per National Electrical Code or local codes. 3/ 5 /07 * * 3-Wire is available. NO N- REV ERS I NG ( G A S) E L E C T R IC A L S E R V IC E S P E C IF IC A T IO N S ( P E R D R YE R ) IMP ORTANT : NO TES : A .
20 Maytag Co. 1 13394-7 3. Grounding A ground (earth) connection must be provided and installed in accordance with state and local codes. In the absence of these codes, grounding must conform to applicable requirements of the National Electrical Code ANSI/NFP A NO.
1 13394-7 Maytag Co. 21 A ground lug is provided in the rear electrical box to connect your service ground. b. 3-Phase (3ø) Wiring Connections/Hookup The electrical connections on ALL 3-phase (3ø) dryers are made into the rear service box located at the upper left area of the dryer .
22 Maytag Co. 1 13394-7 G . GAS INFORMA TION It is your responsibility to have ALL plumbing connections made by a qualified professional to ensure that the gas plumbing installation is adequate and conforms to local and state regulations or codes.
1 13394-7 Maytag Co. 23 2. T echnical Gas Data a . Gas Specifications T Y P E OF GAS NA TURA L L I QUI D P RO P A NE M a n i f o l d P r e s s u r e * 3 . 5 i n c h e s W . C . 8. 7 mb 10. 5 i n ch es W . C . 26. 1 mb I n - Li n e Press u re 6. 0 - 12.
24 Maytag Co. 1 13394-7 3. Piping Connections ALL components/materials must conform to National Fuel Gas Code Specifications ANSI Z223.1-LA TEST EDITION, or in Canada, CAN/CGA-B149.
1 13394-7 Maytag Co. 25 Consistent gas pressure is essential at ALL gas connections. It is recommended that a 3/4-inch (19.05 mm) pipe gas loop be installed in the supply line servicing a bank of dryers. An in-line pressure regulator must be installed in the gas supply line (header) if the (natural) gas pressure exceeds 12.
26 Maytag Co. 1 13394-7 H. PREP ARA TION FOR OPERA TION/ST AR T -UP The following items should be checked before attempting to operate the dryer: 1. Read ALL “ CAUTION ,” “ W ARNING ,” and “ DIRECTION ” labels attached to the dryer . 2. Check incoming supply voltage to be sure that it is the same as indicated on the dryer data label.
1 13394-7 Maytag Co. 27 I. PREOPERA TIONAL TESTS ALL dryers are thoroughly tested and inspected before leaving the factory . However , a preoperational test should be performed before the dryer is publicly used. It is possible that adjustments have changed in transit or due to marginal location (installation) conditions.
28 Maytag Co. 1 13394-7 NOTE: T o check for proper sail switch operation, open the main door and while holding main door switch plunger in, start dryer .
1 13394-7 Maytag Co. 29 J. P REOPERA TIONAL INSTRUCTIONS 1. T o start the dryer: Microprocessor Controller (Computer) Dryers a . Light emitting diode (L.E.D.) display will read “READY” (meaning no cycle in progress). b. Press the letter on the keyboard (touch pad) corresponding to the cycle desired (i.
30 Maytag Co. 1 13394-7 REVERSING TIMER SPIN/DWELL ADJUSTMENTS T imer models have an electronic reversing timer in the electrical service box, which is located in the upper left rear area of the dryer .
1 13394-7 Maytag Co. 31 SECTION IV SER VICE/P AR TS INFORMA TION A. SER VICE Service must be performed by a qualified trained technician, service agency , or gas supplier . If service is required, contact the Maytag dealer from whom the equipment was purchased.
32 Maytag Co. 1 13394-7 SECTION V ROUTINE MAINTENANCE A. CLEANING A program and/or schedule should be established for periodic inspection, cleaning, and removal of lint from various areas of the dryer , as well as throughout the ductwork system. The frequency of cleaning can best be determined from experience at each location.
1 13394-7 Maytag Co. 33 90 DA YS Inspect and remove lint accumulation in customer furnished exhaust ductwork system and from dryer ’ s internal exhaust ducting. W ARNING: THE ACCUMULA TION OF LINT IN THE EXHAUST DUCTWORK CAN CREA TE A POTENTIAL FIRE HAZARD .
34 Maytag Co. 1 13394-7 D. LINT DRA WER REMOV AL T o remove the lint drawer from the dryer pull drawer out approximately halfway . Rotate/move lint drawer stop hinge (refer to the illustration below ) downward and pull drawer out.
1 13394-7 Maytag Co. 35 When contacting the Maytag dealer , or the Maytag Co. , certain information is required to ensure proper service/parts information. This information is on the data label affixed to the upper left side panel area behind the top control (access) door .
36 Maytag Co. 1 13394-7 SECTION VII PROCEDURE FOR FUNCTIONAL CHECK OF REPLACEMENT COMPONENTS 1. Microprocessor Controller (Computer) Board a . Upon completing installation of the replacement microprocessor controller (computer) board, reestablish power to the dryer .
1 13394-7 Maytag Co. 37 2. For Models with Direct Spark Ignition (DSI) Module (T ype I) Theory of Operation: Start the drying cycle. When the gas burner ignites within the chosen trial for ignition time (6-seconds), the flame sensor detects gas burner flame and signals the DSI module to keep the gas valve open as long as there is a call for heat.
38 Maytag Co. 1 13394-7 SECTION VIII MANUAL RESET BURNER HI-LIMIT INSTRUCTIONS A. PHASE 7 This dryer was manufactured with a manual reset burner hi-limit thermostat, which is monitored by the Phase 7 computer .
1 13394-7 Maytag Co. 39 The exclusive Sensor Activated Fire Extinguishing (S.A.F .E.) system will extinguish fires that may start in the drying basket (tumbler). A series of sensors positioned throughout the basket (tumbler) and interfaced with the microprocessor controller (computer) will trigger the S.
40 Maytag Co. 1 13394-7 INST ALLA TION 1. Requirements The S.A.F .E. system must be supplied with a minimum water pipe size of 1/2” and be provided with 40 psi +/- 20 psi (2.75 bar +/- 1.37 bar) of pressure. For use of optional manual bypass, a second source with the same piping and pressure requirements is required.
1 13394-7 Maytag Co. 41 OPTIONAL MANUAL BYP ASS Provisions are made in the dryer S.A.F .E. system for the installation of an optional manual bypass. Depending on the model dryer , the connections for the manual bypass are made at the “T” or “three way” fitting located in the outlet supply side of the water solenoid valve.
42 Maytag Co. 1 13394-7 W ARNING: If the water in the supply line or water solenoid valve freezes, the S.A.F .E. system will be INOPERA TIVE!! The manual ball cock shutoff valve must be located outside of the dryer at a distance from the dryer where it is easily accessible.
1 13394-7 Maytag Co. 43 S.A.F .E. System W ater V alve Check The operation of the water solenoid valve can be tested to ensure that the water supply system and valve are functional.
44 Maytag Co. 1 13394-7 S.A.F .E. System Diagnostics Messages OPEN THERMIST OR PROBE – This message indicates that the S.A.F .E. system thermistor probe either is not connected or is damaged. If this condition is detected, the Phase 7 non-coin control will immediately enter S.
1 13394-7 Maytag Co. 45 NOTES _________________________________________________________________________________________ ________________________________________________________________________________.
Part No. 1 13394 7 - 03/05/07 - 25.
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