Related Manuals for Dometic RMT 7650
Summary of Contents for Dometic RMT 7650
- Page 1 Service-Instruction 3110 ABSORPTION REFRIGERATOR + OVEN for RECREATION VEHICLES RMT 7650 RMT 7850 RMT 7651 RMT 7851 RMT 7655 RMT 7855 Publications-Nr.: T.B. MB 10/2005 599 5230-23 DE English © Dometic GmbH - 2005 - Subject to change without notice...
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Page 2: Table Of Contents
Table of Contents Page Description of Model ......Operating ........Components . -
Page 3: Description Of Model
Piezo automat. depth incl. door incl. freezer freezer comp in 24hrs RMT 7650(L) 1515 x 525 x 596 150 lit. 26 lit. 190 W/170 W ca. 3,2 KWh/380 g 59,0 kg • RMT 7850(L) 1515 x 525 x 651 175 lit. - Page 4 Models 1.2 General Remarks If no supply voltage is available the LED lights Main components accessible via ventilation "red" at AES appliances. grille and control panel. It does not light at MES appliances. Fridge does not necessarily have to be dein- At AES models the selected energy is dis- stalled for service and alteration.
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Page 5: Operating
Operating 2.1 Controls Manual energy selection / manual ignition (RMT 7650, RMT 7850) A = switch on and energy selection (Refrigerator) G = Galvanometer (Refrigerator) (Refrigerator) D = switch for frame heating B = gas/electric thermostat AC/DC (Refrigerator) J = switch on / thermostat (Oven) E = operating display frame heating C = manual ignition button “Piezo ignition/battery... -
Page 6: Components
Components / Refrigerator 3.1 Components (RMT 7650, RMT 7850 only) The equipping of the RMT 7XX0 (piezo)-fridges differs from the traditional piezo-fridges of the RM7-series, due to the standard battery-igniter for gas operation. A = Energy selector switch (underneath cover) B = Battery of the oven’s igniter... - Page 7 Components / Refrigerator 3.4 Wiring scheme (MES/AES) POWER MODULE DC-heating element BURNER 230 V~ 12 V- CONTROL DEVICE 12 V- AC-heating element Temp. Sensor Interior light 12 V/2 W Ignition electrode GAS VALVE Ionisation electrode 3.5 Operating priniciple Function electronics (Power module) Burner Control Device P810 The electronics regulates the controlling of the The Burner Control Device controls the ignition of...
- Page 8 Components / Refrigerator 3.6 Gas operation components At the backside of the fridge the gas (safety) valve and the burner control device is assembled, which are operated with approx. 1.5V, controlled by the electronics. 1 Burner Control Device P810 (igniter, flame control, flame safety device) 2 Gasvalve GV100 (gas sefety device, includes 2 serial mounted valves;...
- Page 9 Components / Oven 3.7 Components < 407 146 554 < 407 146 555 Gas burner 30 mbar < 407 146 564 Gas burner 50 mbar < 407 146 565 < 407 146 556 < 407 146 557 = Screws of the rearwall = Ignition electrode = Gas connection = Gas burner...
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Page 10: Installation
Installation 4.1 Electrical installation Power line connection The power must be supplied via a properly eart- It is advisable to run the incoming supply through hed socket outlet or hardwired connection. an 2 Amps on-board fuse or automatic cir- Where a socket outlet is used for the mains cuit breaker. - Page 11 Installation Terminal block MES RMT 7xx1 above red: + cable 12 V heatingelement via ignition operated relay and fuse 20A white: – cable 12 V heatingelement violett: + cable 12 V permanent connection to electronics black: – cable 12 V permanent connection to black electronics white...
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Page 12: Wiring Diagram
Installation 4.2 Wiring diagram 1. Wiring diagram RMT 7650, RMT 7850 / manual ignition resistor (replaced by a bridge for 24V power supply) terminal block heating element DC switch frame heating lighting DC Ground Reed contacts (sensor switch) thermo couple... - Page 13 Installation 2. Wiring diagram RMT 7651, RMT 7851 permanently connection DC Burner ionisation Control electrode Device ignition ignition unit plug Ground gas burner terminal block heating element DC Valve Switch Frame Heating Reed contacts (sensor switching) heating element DC temp. sensor lighting DC heating element AC mains...
- Page 14 Installation 3. Wiring diagram RMT 7655, RMT 7855 permanently connection DC Burner ionisation Control electrode Device ignition ignition unit plug Ground gas burner terminal block heating element DC Switch Valve Frame Heating Reed contacts (sensor switching) temp. sensor heating element DC lighting DC heating element AC mains...
- Page 15 Installation 4.3 Gas-Connection The gas connection to the appliance is effected by means of a suitable coupling tube fitting L8, DIN 2353-ST, complying with EN 1949 (e. g. Ermeto). DO NOT UNSCREW THE PRE-INSTALLED GAS CONNECTIONS ON THE VALVE WHILE INSTALLING THE FRIDGE ! 1 Gas valve GV100 2 Gas connection SW 17...
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Page 16: Optionen
Options 5.1 Upgrading MES – AES Purchasing an appliance RMT 7xx1 for manual can fast and easily be carried out by an authorised operation, the customer has also the possibility to service partner or a dealer. upgrade the appliance to the RMT 7xx5 with auto- matic energy selection. - Page 17 Options 12V operation is only "active" while engine is run- ning (D+ signal from alternator). Upgrade kit The kit includes : AES-Power-Module Sitck-on lable D+/S+-Upgrade-cable Quick clamping connector New panel Alteration of RMT 7XX1 into model RMT 7XX5 D+/S+ upgrade cable Pull off control knobs and put aside.
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Page 18: Service/Maintenance/Tables
Service/Maintenance/Tables 6.1 Gas valve GV100 Situation B : no D+ signal cable installed in ve- hicle Insert black strand of "D+/S+" cable up to the ground stopper into the quick clamping connector to- gether with the red cable A (+ terminal heating ele- Pin 2 ment, terminal 6) and press connector together. - Page 19 Service/Maintenance/Tables 6.4 Electronics / Power module NTC - Table of resistance Temperature in °C resitance in kOhm 27,70 22,29 18,07 14,74 12,11 6.5 12 V DC/Current draw AC mode Gas mode Auto Auto AC mode Gas mode MES RMT 7XX1 ca.
- Page 20 Service/Maintenance/Tables 6.6 Malfunction of the fridge Failure Possible cause Fuse 500 mA: Protection of burner control device 10,00 Measuring point: In case of a defective fuse, exchange the comple- electronics / power module te power module loosen contacts X108 cable white / brown In case of a defective sensor, the fridge is in opera- tion steadily (recognisable : temperature drops, cooling compartment rather cold)
- Page 21 Service/Maintenance/Tables 6.7 Removal of oven Before removing the oven, make sure, that the fridge is electrically voltage free and that the stop valve of the gas supply is closed! Electrical operation ( MES + AES ) Buzzing noise when switching on = "blinking relay"...
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Page 22: Further Documentation
Further Documentation 7.1 Service Bulletin 1. Dismantle the fascia (grid) above the fridge, in- RM 6XX0, RM6XX1, RM 7XX0 stalled by the OEM. The chimney is accessible. Zu hoher Prüfdruck Publication-Nr.: 599 5178-77 de/ 2. Release the chimney tube and push it up. Service 2003.07.31 BO/KV 3. - Page 23 Notes...
- Page 24 Dometic GmbH Technisches Büro Service Dokumentation In der Steinwiese 16 D-57074 Siegen Tel.: +49 (0) 271 / 692-0 Fax.: +49 (0) 271 / 692-322 www.dometic.de/caravan www.dometic.com...