Dometic RM 7655 L Service Manual

© Dometic GmbH - 2005 - Subject to change without noticePublications-Nr.:599 5230-23 DE T.B. MB 10/2005Service-InstructionEnglishABSORPTION REFRIG

10The power must be supplied via a properly eart-hed socket outlet or hardwired connection.Where a socket outlet is used for the mainsconnection lead,

11Installation 4red: + cable 12 V heatingelement via ignitionoperated relay and fuse 20Awhite: – cable 12 V heatingelementviolett: + cable 12 V perman

1. Wiring diagram RMT 7650, RMT 7850 / manual ignition124 InstallationConnections:A = Ground heating element DCB = Plus heating element DCC = Ground

13Installation 42. Wiring diagram RMT 7651, RMT 7851Connections:A = Ground heating element DCB = Plus heating element DCC = Ground electronicsD = Pl

144 Installation3. Wiring diagram RMT 7655, RMT 7855Connections:A = Ground heating element DCB = Plus heating element DCC = Ground electronicsD = Plu

15Installation 4The gas connection to the appliance is effected by means of a suitable coupling tube fitting L8, DIN2353-ST, complying with EN 1949 (e

Purchasing an appliance RMT 7xx1 for manualoperation, the customer has also the possibility toupgrade the appliance to the RMT 7xx5 with auto-matic en

12V operation is only "active" while engine is run-ning (D+ signal from alternator).Upgrade kitThe kit includes : AES-Power-Module Sitck-o

186 Service/Maintenance/TablesSituation B : no D+ signal cable installed in ve-hicleInsert black strand of "D+/S+" cable up to thestopper i

19Service/Maintenance/Tables 66.5 12 V DC/Current drawNTC - Table of resistanceTemperature in °C resitance in kOhm0 27,705 22,2910 18,0715 14,7420 12,

2Page1.0 Description of Model . . . . . . . . . . . . . . . . . . . . . . . . . . . 32.0 Operating . . . . . . . . . . . . . . . . . . . . . . . . .

206 Service/Maintenance/Tables25 10,00Measuring point:electronics / power moduleloosen contacts X108cable white / brownIn case of a defective sensor

 Electrical operation (MES + AES) Buzzing noise when switching on = "blinkingrelay" on the electronics Gas operationYellow LED flashes im

227Further Documentation1. Dismantle the fascia (grid) above the fridge, in-stalled by the OEM. The chimney is accessible.2. Release the chimney tube

23Notes

Dometic GmbHTechnisches Büro Service DokumentationIn der Steinwiese 16D-57074 SiegenTel.: +49 (0) 271 / 692-0Fax.: +49 (0) 271 / 692-322www.dometic.de

3Models 1RMT 7650 RMT 7850 Piezo-fridges are equipped with a manual energyselector and a thermostatic regulation of the coo-ling compartment temperatu

41 Models Main components accessible via ventilation grille and control panel. Fridge does not necessarily have to be dein-stalled for service and a

Button A is used for selection of the wanted ener-gy source; Button B is used for setting the tempe-rature. Using the gas modus, the ignition is carri

The space-saving electronics is mounted directlybehind the front fascia. The LED for status indica-tion, energy selection switch and temperature re-gu

Function electronics (Power module)The electronics regulates the controlling of thefunction elements according to the selected ener-gy source, e.g. po

83Components / RefrigeratorAt the backside of the fridge the gas (safety) valveand the burner control device is assembled,which are operated with appr

A = Screws of the rearwallB = Gas connection1 = temperature sensor2/C = Terminal 12 V DC3 = Ignition device4 = Ignition electrode5 = Gas burner6 = Th