This is an unvented gas-fired heater. It uses air (oxygen) from the room in which it is installed. Provisions for adequate combustion and ventilation air must be provided. See page 9. Read and save these instructions warnings if the information in this manual is not followed exactly, a fire or explo...
23d8036 contents important safety information ..................................3 product features ......................................................5 operation .............................................................. 5 natural gas .............................................................
23d8036 3 9. The installation must conform with local codes or, in the absence of local codes, with the national fuel gas code, ansi z223.L/nfpa54. 10. This unit complies with ansi z21.11. Unvented heat- ers. 11. Do not install the heaters in a bathroom or bedroom. 12. Correct installation of the ce...
4 23d8036 important safety information continued from page 3 16. Keep room area clear and free from combustible materials, gasoline and other flammable vapors and liquids. 17. Unvented gas heaters are a supplemental zone heater. They are not intended to be the primary heating appliance. 18. Unvented...
23d8036 5 your vent-free fireplace must be mounted to the floor or the fireplace hearth. Operation this unvented gas heater requires no outside venting and burns cleanly with high heating efficiency. Piezo ignitor fireplace screen control knobs product features optional face plate figure 1 - unvente...
6 23d8036 natural gas milli-volt and t-stat pressure regulator pressure setting: 3.5" w.C. Pilot regulator: 3.5" w.C. Gas inlet pressure: max. 10 1/2" w. C. Min. 5" w.C. Product features and specifications propane/lpg note: an external regulator is required to reduce supply pressure to a maximum of ...
23d8036 getting started make sure you have received all parts check your packing list to verify that all listed parts have been received. You should have the following: • installation/operating instructions • black louvers (5) • 33" unvented gas heater with brick panels. • canopy • volcanic rock and...
8 23d8036 removing screen remove fireplace screen by pushing screen frame panel up and out. See figure 2. Figure 2 - removing fireplace screen general installation information installing canopy 1. Remove the fireplace screen as described in the previous section. 2. Align canopy with the holes in the...
23d8036 9 general installation information codes adhere to all local codes or, in their absence, the latest edition of the national fuel gas code ansi z223.1 or nfpa54 which can be obtained from… american national standards institute, inc. 1430 broadway new york, ny 10018 or national fire protection...
10 23d8036 w h btu/hr = btu/hr = w arning the following formula can be used to determine the maximum heater rating per the definition of unconfined space: (l 1 + l ) ft x (w) ft x (h) ft 50 consider two connecting rooms with an open area between, with the following dimensions: l 1 = 15 1 / ft., l = ...
23d8036 11 33" 15 1 / 4 " 22 3 / 4 " 23 7 / 8 " b a 9" minimum 9" minimum 42" minimum clearances and height requirements note: clearances are necessary to combustible surfaces only. No clearance is necessary for noncombustible surface. Sidewall clearances: the clearance from the inside of the applia...
1 23d8036 10" 12" 14" 26" 8" 12" 10" 8" 6" 2 1 / 2 " hood no combustible materials within 8” of opening. Do not cover louvers. No combustible materials within 8" of opening. Do not cover louvers. Hood 8" 4" 2 1 / 2 " 10" 6" 8" heat resistant material (minimum require- ments) with no wooden mantel or...
23d8036 13 combustible material non-combustible material 5" 1” clearances and height requirements the gas log heater must be installed at least 5" above any combustible flooring material, such as carpeting or tile, which is closer than 14" to the base of the fireplace. See figure 10. Figure 10 - min...
14 23d8036 22 5 / 8 " 33 1 / 2 " 16 " 33 1 / 2 " 16 " 33 1 / 2 " 27 1 / 2 " 22 5 / 8 " 31 7 / 8 " ref 16 " 37 1 / 4 " 45 3 / 4 " 15 3 / 8 " 33 1 / 2 " 64 1 / 4 " fireplace framing if unit is to be “built in,” fireplace framing can be built before or after the appliance is set in place. Be sure that ...
23d8036 15 note: clearance requirements as detailed in “clearances and height requirements” section of this manual must be met before securing heater in place. To prevent movement, the heater must be secured to the floor or hearth. 1. Lift off louvers and remove the screen. 2. Remove log set. 3. To ...
16 23d8036 notice: a qualified gas appliance installer must connect the heater to the gas supply. Consult all local codes. Important: loosen the pipe adapter on the flex tube before installing to the system piping. Figure 17 - gas connection to heater valve stainless flexible tube connecting the gas...
23d8036 1 to reach factory installed flex line, go through access door on right or left side of firebox. Connecting the gas check gas type: the gas supply must be the same as stated on heater's rating plate. Located behind the control access door (figure 1, page 5). If the gas supply is different, d...
18 23d8036 checking gas pressure test all gas joints from the gas meter to the heater valve for leaks using a gas analyzer or soap and water solution after com - pleting connection. Do not use an open flame. Check the gas pressure with the appliance burning and the control set to high . Open control...
23d8036 19 electrical wiring (milli-volt) the milli-volt valve is a self-powered combination gas control that does not require 110 vac to operate. Figure 20 - wiring diagram optional wall switch or remote receiver switch on/off switch on/off switch wall switch ods pilot millivolt valve th = 3 tp = 1...
0 23d8036 electrical wiring (milli-volt) a. Complete millivolt system check (“a” reading - thermostat contacts closed - control knob “on” - main burner should turn on) a. If the reading is more than 100 milli-volts and the automatic valve still does not come on, replace the control. B. If the closed...
23d8036 1 electrical wiring (fan) if any of the original wire as supplied with the fireplace must be replaced, contact dealer for proper replacement wiring har - ness. (see parts list for part number) . 120 volts, 60hz, 1 amps. Electrical power cord (plug) can be routed to exit the 33isd on either t...
23d8036 log placement figure 19 - installing right base log (#1) before you begin — this unit is supplied with six (6) 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...
23d8036 3 log placement figure 21 - installing left base log (#3) left base log (#3) pins figure 22 - installing right top log (#4) right top log (#4) pins 4. Place right top log (#4) on two pins located to the left of right base log. See figure 22. 3. Place left base log (#3) on two pins on left si...
4 23d8036 log placement figure 23 - installing left top log (#5) left top log (#5) 5. Place right end of left top log (#5) on bottom center grate pin. Rest the left end of left top log (#5) on the left base log. See figure 23. Bottom center pin pin left base log (#3).
23d8036 5 log placement 6. Place right front log (#6) on two pins on the right front of grate. See figure 25. Figure 25 - installing right front log (#6) pins right base log right front log (#6) extrusions placing rock wool after installing logs, place tpb-rw (rock wool) in dime-size pieces evenly a...
6 23d8036 flame appearance flames from the pilot, front and rear burner should be visually checked as soon as the heater is installed. In addition, periodically check the flames visually during operation. Checking the pilot flame the pilot flame must always be present when the heater is in operation...
23d8036 in normal operation at full rate after 15 minutes, the following flame appearances should be observed: figure 33 - correct appearance of rear flames burner will have a random pattern of yellow flames as shown in figure 33. There should be glowing embers on the front burner. Note: the flames ...
8 23d8036 w arning figure 34 - location of piezo ignitor, control knobs and switch on milli-volt unit, hi/lo remote control and manual unit a. This appliance is equipped with a piezo ignition device which automatically lights the pilot. If pilot is not working see match lighting instructions on page...
23d8036 29 operating instructions 1. Stop! Read the safety information label. 2. Make sure the manual shutoff valve is fully open. 3. This gas log set is equipped with an ignition device (piezo) which automatically lights the pilot. If piezo ignitor does not light the pilot, refer to instructions fo...
30 23d8036 1. Remove any items necessary for easy access to the pilot (for example: logs, screens, etc.). 2. Follow appropriate lighting instructions found previously. Instead of pushing and releasing the piezo button, light a match and hold the flame to the end of the pilot and ignite the pilot. 3....
23d8036 31 annual inspection and cleaning by your dealer or qualified service technician is recommended to prevent malfunction and/or sooting. Periodic cleaning - refer to parts diagram for location of items discussed below. • do not use cleaning fluid to clean logs or any part of heater. • brush lo...
3 23d8036 observed problem when ignitor button is pressed, there is no spark at ods/pilot. Appliance produces unwanted odors. Appliance shuts off during use. Gas odor even when control knob is in off position. When ignitor button is pressed, there is spark at ods pilot, but no ignition. Possible cau...
23d8036 33 observed problem ods/pilot lights, but flame goes out when control knob is released. Burner does not light after ods/ pilot is lit. Burner backfires during com - bustion. Slight smoke or odor during initial operation. Logs appear to smoke after ini- tial operation. Heater produces a whist...
34 23d8036 1 2 3 4 8 8 8 8 8 8 13 7 5 6 14 12 failure to position the parts in accordance with these diagrams or failure to use only parts specifically approved with this appliance may result in property damage or personal injury. W arning illustrated parts breakdown.
23d8036 35 replacement parts list item qty description dis33n/p 1 1 screen assembly 23d8028 2 1 canopy assembly 23d8027 3 3 top black louver 23d0200k 4 1 bottom black hang on louver assembly 23d8016 5 1 left firebrick 53d0753 6 1 right firebrick 53d0752 7 1 center firebrick 53d0751 optional face pla...
36 23d8036 5 6 3 4 8a 8b 1 illustrated parts breakdown failure to position the parts in accordance with these diagrams or failure to use only parts specifically approved with this appliance may result in property damage or personal injury. W arning.
23d8036 3 replacement parts list replacement parts are available through your retailer. Item description qty 33isdn 33isdp common parts 1 piezo ignitor 1 14d0503 14d0503 2 piezo wire 1 00k0632 00k0632 3 burner 1 70d0104 70d0104 milli-volt control 4 control valve 1 14d0467 14d0468 5 burner injector 1...
38 23d8036 #2 #1 #3 #4 #5 #6 replacement parts are available through your retailer. Illustrated parts breakdown failure to position the parts in accordance with these diagrams or failure to use only parts specifically approved with this appliance may result in property damage or personal injury. W a...
23d8036 39 limited lifetime warranty policy the following components are warranted for life to the original owner, subject of proof of purchase: firebox, combustion chamber, heat exchanger, grate, and stainless steel burners. Five year warranty the following components are warranted for 5 years to t...
August 2008 23d8036 • rev. 2 mhsc 149 cleveland drive • paris, kentucky 40361 www.Mhsc.Com.
