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Manafacture: Monessen Hearth File size: 695.88 kb File name: Language of manual:

The color of the wires does not matter. Figure 18 - Wiring Diagram Optional Wall Switch, Remote Receiver or Optional T-Stat Switch On/Off Switch On/Off Switch Wall Switch ODS Pilot Milli-volt Valve TH = 3 TP = 1 TP/TH = 2 ODS Pilot Spade Terminal Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and dangerous operation. Verify proper operation after servicing. CAUTION ELECTRICAL WIRING (MILLI-VOLT) CONNECTING REMOTE RECEIVER 1. Connect the connectors to the two .25" male connectors located on the right side when facing the unit (Figure 19). Do not let the wire touch the grate or burners. NOTE: Heat reduces battery life. You can protect the receiver and extend battery life by mounting the receiver in a wall or other location outside the fireplace. Remote Receiver Remote Wire Connectors Figure 19 - Installing Remote Receiver INSTALLING T-STAT SENSOR (OPTION SOLD SEPARATELY) 1. Remove metal bracket and label from box. 2. Peel away the paper backing on the label. Line up holes in label with holes on the bracket. Right side of label should flush with right side of bracket. See Figure 20. Press label firmly and smoothly to bracket. 3. Using Phillips screwdriver, install t-stat sensor to bracket with two screws provided. See Figure 21. Make sure the thermo bulb wire is at the bottom of t-stat sensor. 4. Plug in wiring harnesses to back of t-stat sensor. See Figure 21. Wiring Harnesses Line Up Holes HIGHLOW26D3317THERMOSTATSETTINGHIGHLOW26D3317THERMOSTATSETTINGFigure 20 - Applying Label to Bracket Flush edge of label to right side of bracket Figure 21 - Installing T-Stat Sensors and Wiring Harnesses T-Stat SensorBracket Screws Thermo Bulb 44D0060 23 ELECTRICAL WIRING (MILLI-VOLT) 5. Route wiring harnesses through large hole on side of unit. Mount bracket to side of unit with screw provided. See Figure 22. 6. Attach wiring harness to either TP/TH and TH on control valve or to existing wiring harness with two (2) 0.250" male spade terminals for remote or t-stat option. See Figures 22 and 23. 7. Install knob to shaft of t-stat sensor. See Figure 22. 8. Place thermo bulb in front of the firebox for incoming air. HIGHLOW6D33THERMOSTATSETTINGKnob Thermo Bulb Screw T-Stat Sensor and Bracket Wiring Harnesses Figure 22 - Installing T-Stat Sensor to DEB Base with Screw Provided Wiring Harnesses TH TP/TH Figure 23 - Attaching Wiring Harnesses to Control Valve 24 44D0060 ELECTRICAL WIRING (MILLI-VOLT) OPERATION OF THERMOSTAT SENSOR 1.Follow millivolt lighting instructions on lighting plate attached to unit or in homeowner’s manual. 2.With control knob in the “ON” position make sure the ON/OFF switch is in the “OFF” position. See Figure 24. 3.The unit is now being controlled by the thermostat sensor. The sensor will now cycle the burners on and off. You can adjust how often the unit cycles by turning the control knob on the sensor. ON/OFF Switch HIGHLOWTHERMOSTATSETTINGControl Knob T-Stat Sensor Figure 24 - Control Knob in “ON” Position and ON/OFF Switch in “OFF” Position CHECKING SYSTEM OPERATION The milli-volt system and individual components may be checked with a milli-volt meter having a 0-1000 mV range. Conduct each check shown in chart below by connection meter test leads to terminals as indicated. CHECK TEST TO TEST CONNECTMETER LEADS TO TERMINALS THERMOSTAT CONTACTS METERREADING SHOULD BE A COMPLETE SYSTEM TP/TH and TH CLOSED MINIMUM 175 B THERMOPILE OUTPUT TP and TP/TH OPEN MINIMUM 500 A. COMPLETE MILLI-VOLT SYSTEM CHECK (“A” Reading - Thermostat contacts CLOSED - Control Knob “ON” - Main burner should turn ON) a. If the reading is more than 175 milli-volts and the automatic valve still does not come on, replace the control. b. If the closed circuit reading (“A” reading) is less than 175 milli-volts, determine cause for low reading, proceed to Section B below. B. Thermopile Output Reading Check (“B” Reading - Thermostat contacts OPEN - Main burner OFF) 1. Check gas pressure to the unit. If gas pressure is within minimum and maximum on data plate, then check pilot voltage, 500 milli-volts minimum. If the minimum milli-volt reading is not obtainable, replace pilot. 44D0060 25 26 44D0060 LOG PLACEMENT INSTALLING LOGS ON GRATE (See Figures 25 and 26 ) NOTE: Model DEB18 has 4 logs and models DEB24 and DEB30 have 5 logs. 1. Install back log (#1) on two pins located near the back of base. Check log position and stability. 2. Install right center log (#2) on pins located near right front of base and center of base. Figure 25 - Installing Logs to Grate (Model DEB20) Before you begin — This unit is supplied with four or five ceramic fiber logs. Do not handle these logs with your bare hands. Always wear gloves to prevent skin irritation from ceramic fibers. After handling the logs, wash your hands gently with soap and water to remove any traces of fibers. Figure 26 - Installing Logs to Grate (Models DEB24 and DEB30) The positioning of the logs are critical to the safe and clean opera...

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