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Munchkin HIGH EFFICIENCY HEATER with the "925" Controller, Operating Instructions Manual

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Munchkin HIGH EFFICIENCY HEATER with the

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Summary of Contents for HIGH EFFICIENCY HEATER with the "925" Controller

Page 1: ...eighbor s phone Follow the gas supplier s instructions If you cannot reach your gas supplier call the fire department Installation and service must be performed by a qualified installer service agency...

Page 2: ...HEATER AND PRESSURE VESSEL CODE Section IV ALONG WITH CSD1 THE HEATER GAS PIPING WATER PIPING VENTING AND ELECTRICAL MUST BE INSTALLED BY TRAINED QUALIFIED PERSONNEL FAMILIAR WITH INSTALLATION PRACTI...

Page 3: ...ng with Circulators or Zone Valves 22 B Circulator Sizing 23 C Fill and Purge Heating System 24 D Piping Illustrations 25 PART 6 34 thru 37 START UP PROCEDURES A Sequence of operation 34 B Items to be...

Page 4: ...seconds to pre purge the system before starting the Munchkin The Munchkin controller will now start to modulate the pre mix burner based on analyzing the return temperature supply water temperature an...

Page 5: ...GENERAL INFORMATION 5 Figure 1 1 NOTE The Munchkin is rated at zero clearance to combustibles 80M 140M 199M T50M T80M RECOMMENDED SERVICE CLEARANCES Figure 1 2...

Page 6: ...GENERAL INFORMATION 6 Figure 1 3 T50M T80M DIMENSIONS...

Page 7: ...GENERAL INFORMATION 7 DIMENSIONS 80M 140M 199M Figure 1 4 Figure 1 5...

Page 8: ...certified for use on combustible floors 2 Refer to Figure 1 1 and Figure 1 2 for the recommended clearance to allow for rea sonable access to the boiler Local codes or special conditions may require...

Page 9: ...r your convenience we have labeled all the wires that need to be connected to operate the Munchkin CAUTION The Munchkin is certified as an indoor appliance Do not install the Munchkin outdoors or loca...

Page 10: ...n should now be reading the outlet temperature Note see Part 6 Startup Procedure section in the manual to change the temperature setting or run the heater CAUTION Electrical wiring on the Incoming Pow...

Page 11: ...R FIRE AND COULD DAMAGE THE CONTROL O R A N G E B R O W N G R E E N Figure 2 1 Connection Wiring Directly to Central Heating Circulator Figure 2 2 Connection Wiring without Wiring Central Heating Circ...

Page 12: ...rom the gas line In order to do this you must shut the gas off using factory and field installed gas cocks following the lighting instructions in Part 6 Section B This will prevent high pressure Failu...

Page 13: ...inimum of 10 feet from the Munchkin It is very important that the gas line is properly purged by the gas supplier or utility Failure to properly purge the lines or improper line sizing will result in...

Page 14: ...ombustibles Note For Concrete construction or to meet certain fire codes exhaust and inlet piping at the wall penetration to the Munchkin must be CPVC Schedule 40 or 80 to meet local fire codes The ba...

Page 15: ...Never vent over or under a window or over a doorway where the exhaust plume or conden sation liquid will cause obtrusive or dangerous conditions Or refer to National Fuel Gas Code CAN B149 3 Never ins...

Page 16: ...CREENS FROM THE PROVIDED INLET TEE AND INSTALL THEM IN THE INLET SOCKET AND OUTLET SOCKET Y TEE CONNECTION OF THE KIT PRIOR TO INSTALLING THE SCHEDULE 40 PIPE AND GLUING VENTING 12 in minimum Forced a...

Page 17: ...ed combined length of pipe on the inlet and exhaust must not exceed 125 equivalent feet total Example Installation requires the following material for both the inlet and exhaust piping when extending...

Page 18: ...7 Any improper operation of the common venting system should be corrected so the installa tion conforms with the National Fuel Gas Code ANSI Z223 1 When resizing any portion of the common venting sys...

Page 19: ...hed a minimum of a per foot back to the heater to allow drainage of condensate Figure 4 1 IMPORTANT NOTE All vent pipes must be glued prop erly supported and the exhaust must be pitched a mini mum of...

Page 20: ...ust must be pitched a minimum of a per foot back to the heater to allow drainage of condensate Figure 4 3 IMPORTANT NOTE All vent pipes must be glued properly supported and the exhaust must be pitched...

Page 21: ...ched a minimum of a per foot back to the heater to allow drainage of condensate Figure 4 5 IMPORTANT NOTE All vent pipes must be glued properly supported and the exhaust must be pitched a minimum of a...

Page 22: ...use glycol that is specially formulated for this purpose It includes inhibitors which prevent the glycol from attacking the metallic system components Make certain that the system fluid is checked for...

Page 23: ...g illustrations included in this section Figs 5 3 to 5 11 for suggested guidelines in piping the Munchkin heater with either zone valves or circulator pumps Please note that these illustrations are me...

Page 24: ...ested at least once a year and as recommended by the glycol manufacturer 3 Anti freeze solutions expand more than water For example a 50 by volume solution expands 4 8 in volume for a temperature incr...

Page 25: ...valve air separator backflow preventer diaphragm type expansion tank pressure reducing valve diff pressure bypass anti scald rated mixing valve pressure gauge 4 way motorized mixing valve 3 way motori...

Page 26: ...140M 5 gpm Munchkin model 199M 7 gpm 3 The minimum pipe size for connecting a Super Stor water heater is 1 inch 4 The minimum pipe size for connecting a Munchkin boiler is 1 25 inches 5 All pumps are...

Page 27: ...gpm Munchkin model 80M 3 gpm Munchkin model 140M 5 gpm Munchkin model 199M 7 gpm 3 The minimum pipe size for connecting a Super Stor water heater is 1 inch 4 The minimum pipe size for connecting a Mun...

Page 28: ...for connecting a Munchkin boiler is 1 25 inches 5 All pumps are shown with isolation flanges The alternative is standard flanges with full port ball valves 6 The anti scald mixing valve is recommended...

Page 29: ...3 The minimum pipe size for connecting a Super Stor water heater is 1 inch 4 The minimum pipe size for connecting a Munchkin boiler is 1 25 inches 5 All pumps are shown with isolation flanges The alte...

Page 30: ...pe size for connecting a Munchkin boiler shall be 1 25 inches 6 All pumps are shown with isolation flanges The alternative is standard flanges with full port ball valves 7 The anti scald mixing valve...

Page 31: ...stalled upstream and downstream of all closely spaced tees 4 The minimum pipe size for connecting a Super Stor water heater is 1 inch 5 The minimum pipe size for connecting a Munchkin boiler shall be...

Page 32: ...ize for connecting a Munchkin boiler shall be 1 25 inches 6 All pumps are shown with isolation flanges The alternative is standard flanges with full port ball valves 7 The anti scald mixing valve is r...

Page 33: ...pe size for connecting a Munchkin boiler shall be 1 25 inches 6 All pumps are shown with isolation flanges The alternative is standard flanges with full port ball valves 7 The anti scald mixing valve...

Page 34: ...l enters an idle state while continuing to moni tor temperature and the state of other system devices If a call for heat is received the con trol will automatically return to step 2 in sequence and re...

Page 35: ...ian Force or attempted repair may result in a fire or explosion 4 Do not use this appliance if any part has been under water Immediately call a qualified serv ice technician to inspect the appliance a...

Page 36: ...he burn er will not start until the outlet temperature of the system falls below 159 F degrees 180 20 F 160 F To adjust press either S1 Decrease Value or S2 Increase Value Ranges 5 F to 30 F Press the...

Page 37: ...mode stops automatically To exit Test Mode press S1 and S2 key together for 1 second H TO TURN OFF GAS TO APPLIANCE 1 Set the thermostat to lowest setting 2 Turn off all electric power to the applian...

Page 38: ...e controller will illuminate the red fault indication light and display a fault code in the format Example F00 on the display module 2 Note the fault code and refer to Table 7 2 for an explanation of...

Page 39: ...c o l b e u l f y n a k c e h C 0 1 F r e l i o b e h T l a n g i S e m a l F f o s s o L e h t e r o f e b s e m i t 4 t h g i l e r l l i w t u o k c o l s i h t o t n i s e o g l o r t n o c n o i...

Page 40: ...t Temperature F Resistance ohms 32 32550 41 25340 50 19870 59 15700 68 12490 77 10000 86 8059 95 6535 104 5330 113 4372 122 3605 131 2989 140 2490 149 2084 158 1753 167 1481 176 1256 185 1070 194 915...

Page 41: ...check burner for deterioration If deterioration is observed replace burner System Water Pressure check pressure regulator and system pressure Check system for air which will create noise Open air vent...

Page 42: ...y buildup then vacuum the debris from the coils 4 Spray the coils with clear water making sure to confine the spray to the area being cleaned Try to avoid getting the back ceramic wall of the unit wet...

Page 43: ...YOUT Fig 8 1 There is a spare 6 3 amp slow blow fuse included on the control cover HTP p n 7250 378 or you may purchase it from Radio Shack p n 270 1068 Caution Do not replace with any amperage other...

Page 44: ...MAINTENANCE 44...

Page 45: ...MAINTENANCE 45...

Page 46: ...NOTES 46...

Page 47: ...NOTES 47...

Page 48: ...SuperStor Ultra SuperStor Voyager Voyager Sanitizer and Everlast are registered trademarks of Heat Transfer Products Inc Munchkin R1 2004 Heat Transfer Products Inc LP 61 REV 1 17 05...

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