Mammoth R6GD Series, User'S Manual & Installation Instructions

Page 1: ...nnel for this type of equipment After completing the installation return these instructions to the customer s package for future reference WARNING DO NOT DESTROY PLEASE READ CAREFULLY AND KEEP IN A SAFE PLACE FOR FUTURE REFERENCE FIRE OR EXPLOSION HAZARD Failure to follow safety warnings exactly could result in serious injury or property damage Installation and service must be performed by a quali...

Page 2: ...er Carefullyreviewtheseresponsibilitieswith your dealer or service company The manufacturer will not be responsible for any costs found necessary to correct problems due to improper setup improper installation adjustments improper operating procedure on the part of the user etc Some specific examples of service calls which are not included in the limited warranty are Correcting wiring problems in ...

Page 3: ...TARTUP ADJUSTMENTS 18 Pre Start Checklist 18 Start up Procedure 18 Air Circulation 18 System Cooling 18 System Heating 18 Verifying Adjusting Temperature Rise 18 Verifying Adjusting Firing Rate 19 Verifying Operation of Over Temperature Limit Control 19 Verifying Burner Operation 19 Refrigerant Charging 19 Manifold Pressure Adjustment 20 OPERATING SEQUENCE 20 Heating Mode 20 Cooling Mode 21 Fan Mo...

Page 4: ...ode to AUTO See Figure 1 NOTE The system will not operate regardless of the temperature selector setting Operating the Indoor Blower Continuously Thecontinuousindoorbloweroperationistypicallyusedto circulatetheindoorairtoequalizeatemperatureunbalance due to a sun load cooking or fireplace operation Set the thermostat fan mode to ON Figure 1 The indoor blower starts immediately and will run continu...

Page 5: ...ved shirt and appropriate breathing protection when working near this insulation If contact with skin occurs wash immediately with soap and water In case of contact with eyes flush immediately with water for at least15minutes Contactaphysicianifneeded WARNING The information listed below and on the next page must be followed during the installation service and operation of this unit Unqualified in...

Page 6: ... to provide the correct flow rates and external pressure rise An improperly designed duct system can result in nuisance shutdowns and comfort or noise issues Installationofequipmentmayrequirebrazingoperations Installer must comply with safety codes and wear appropriate safety equipment safety glasses work gloves fire extinguisher etc when performing brazing operations ThisequipmentisNOTtobeusedfor...

Page 7: ...pment Select a solid level position preferably on a concrete slab slightly above the grade level and parallel to the home DO NOT PLACE UNIT UNDER THE HOME Overhead obstructions poorly ventilated areas and areas subject to accumulation of debris should be avoided Do not place the unit in a confined space or recessed area where discharge air from the unit to re circulate into the condenser air inlet...

Page 8: ...uirements in Canada B149 1 are structured differently Consult with B149 1 and local code officials for Canadian installations Air openings in the door of the unit warm air registers and return air grilles must never be restricted If the unit does not receive an adequate supply of air for combustion the flame roll out control located above the burners will open turningoffthegassupplytotheburners Th...

Page 9: ...E CARBONED Le non respect des consignes suivantes portant sur chacun des appareils raccordés au système d évacuation mis en service pourrait entraîner l empoisennement au monoxyde de carbone ou la mort Les consignes suivantes doivent être observées pour chaque appareil raccordé au système d évacuation mis en service si les autres appareils raccordés au système ne sont pas en service 1 Scellertoute...

Page 10: ...ht may be observed inside the casing to indicate the presence of leaks in the heat exchanger The cover for the opening shall be attached in a way that will prevent leaks If outside air is utilized as return air to the unit for ventilation or to improve indoor air quality the system must be designed so that the return air to the unit is not less than 50 F 10 C during heating operation If a combinat...

Page 11: ...tion for setting of the unit Sufficient clearance for unobstructed airflow through the outdoor coil must also be maintained in order to achieve rated performance See page 7 for information about locating the equipment Ground Level Ground level installations must be located according to localbuildingcodesorordinancesandtheserequirements Clearances must be in accordance with those shown in Figure 2 ...

Page 12: ...cess panel The access panel was designed to be captured underneath the top panel 2 Slide the first filter between both guide channels of filter rack and allow the filter to drop easily into place 3 Verify the bottom of the filter is within the channels of the rack 4 Slide the 2nd filter between both guide channels of filter rack 5 Verify the bottom of the filter is within the channels of the rack ...

Page 13: ... protection must be provided at the branch circuit distribution panel and sized as shown on the unit ratinglabelandaccordingtoapplicablelocalcodes See the unit rating plate for maximum circuit ampacity and maximum overcurrent protection limits A wiring diagram is located on the inside cover of the control access panel of the outdoor unit The installer should become familiar with the wiring diagram...

Page 14: ...eat Green Gray Black Yellow Blue R C Y G W X Y2 Y1 R G W1 Gas Valve 1 2 3 4 5 6 7 8 9 Economizer Plug Indoor Thermostat Sub Base Furnace Board Optional Check thermostat Instructions Thermostat Low Voltage Connections The R6GD unit is designed to operate from a 24 VAC Class II control circuit The control circuit wiring must comply with the current provisions of the NEC ANSI NFPA 70 and with applica...

Page 15: ...for the required airflow point 3 The integrated furnace control can be set to a 2 or 3 speed mode When a G only call is received from the thermostat indicating a continuous fan mode the blower will run the heating speed when the 2 SPD mode is selected using the jumper on the control board factory setting When 3 SPD mode is selected the fan only speed may be different than the heating or cooling sp...

Page 16: ...ssible for service use A drip leg should be installed in the vertical pipe run to the unit Figure 9 Optional Humidistat An optional humidistat may be installed in the return air duct for humidity control when needed maximum system capacity and energy efficiency The humidistat senses when humidity in the return air stream is above a preset level and sends a signal to the motor to reduce airflow Thi...

Page 17: ... 20 The changes required depend on the installation altitude and the heating value of the gas based on sea level which can be obtained from your local gas utility The heating value of gas at high altitude is always lower than the sea level heating value The heating values listed in Tables 6 7 page 20 are based on sea level values If installing this unit above 2 000 feet the input rate must be redu...

Page 18: ...stem Cooling 1 Set the thermostat s system mode to COOL and the fan mode to AUTO Gradually lower the thermostat temperaturesetpointbelowroomtemperatureandverify the compressor fan and indoor blower energize 2 Feel the air being circulated by the indoor blower and verifythatitiscoolerthanambienttemperature Listenfor any unusual noises If unusual sounds occur determine the source of the noise and co...

Page 19: ...efficiency of the close off when blocking the return air The circulating air and combustion blowers should continue to run when the over temperature limit control switch opens 3 Remove the close off plate immediately after the over temperature limit control opens If the unit operates for more than four minutes with no return air set the thermostat below room temperature shut off power to the unit ...

Page 20: ...emains there Minimum and maximum warm up time limits are set at 6 and 54 seconds 7 The furnace control must prove flame via the flame sensor 5 seconds after the gas valves open If flame is sensed burners are on and the igniter cools off If no flame is sensed the gas valve closes immediately and the inducer continues to run A second trial for ignition step 6 begins If no flame is sensed on the fift...

Page 21: ... errors can cause improper and dangerous operation CAUTION Use care when removing parts from this unit Personal injury can result from sharp metal edges present in all equipment of sheet metal construction Proper maintenance is important to achieve optimum performance from the system The ability to properly perform maintenance on this equipment requires certain mechanical skills and tools If you d...

Page 22: ...n clean out cable Attach the other end of the spring cable to a variable speedreversibledrill Slowlyinsertandrotatethecable into the top portion of the heat exchanger Operate the drill alternating between forward and reverse working the cable in and out several times to obtain sufficient cleaning Repeatthisprocessateachexchangertube 13 Remove all loosened debris from the heat exchanger tubes using...

Page 23: ...mode check the following The thermostat is operating properly Electrical power to the unit is turned on The filters are not dirty The service doors are in place The 3 amp fuse is operational If the unit does not operate in the heating mode check the following The thermostat is operating properly Electrical power to the unit is turned on The filters are not dirty The gas is turned on and the manual...

Page 24: ...D 8 75 Horizontal Supply Duct Opening Horizontal Return Duct Opening 4 0 1 75 9 75 24 75 16 0 Condensing Coil 13 5 13 5 16 0 16 0 C FIGURES TABLES Figure 10 R6GD Dimensions Model Number R6GD Unit Weight Shipping Weight Center of Gravity Height in inches C D A B with base rails without base rails X36 072 470 480 26 5 26 5 39 0 35 3 X36 072 485 495 26 5 26 5 39 0 35 3 X36 072 540 550 27 5 26 5 43 0 ...

Page 25: ... 93 T3 1525 46 63 1450 49 04 1370 51 91 1320 53 87 1270 55 99 1210 58 77 1150 61 84 1100 64 65 T4 1650 1585 1520 46 78 1465 48 54 1405 50 61 1340 53 07 1280 55 56 1235 57 58 T5 1775 1715 1650 1600 1540 46 18 1460 48 71 1375 51 72 1330 53 47 X48 120 120 000 96 000 45 75 47 800 10 x 10 3 4 T1 1185 75 00 1110 1035 980 925 875 820 785 T2 1410 63 04 1330 66 83 1250 71 11 1195 74 38 1140 1085 1030 975 T...

Page 26: ... 346 50 72 360 720 106 34 170 340 52 69 346 692 108 33 167 333 54 67 333 667 110 33 164 327 56 64 321 643 112 32 161 321 58 62 310 621 114 32 158 316 60 60 300 600 116 31 155 310 62 58 290 581 118 31 153 305 64 56 281 563 120 30 150 300 Table 12 Gas Flow Rates CAPACITY OF BLACK IRON GAS PIPE CU FT PER HOUR FOR NATURAL GAS SPECIFIC GRAVITY 0 60 NOMINAL BLACK IRON PIPE DIAMETER IN LENGTH OF PIPE RUN...

Page 27: ...ili sant le téléphone d un voisin A défaut de la compagnie du gaz avertir le service des pompiers C Enfoncer ou faire tourner le robinet à gaz à la main seulement Nejamaisutiliserd outils S iln estpaspossible de faire tourner ou d enfoncer le robinet à la main ne pas essayer de le réparer Faire appel à un spécialiste Forcer outenterderéparerlerobinetpourrait être à l origine d une explosion ou d u...

Page 28: ...ceed 150v to ground 4 If any of the original wire as supplied with the furnace must be replaced it must be replaced with wiring material having a temprature rating of at least 105C 5 For supply wire ampacities and overcurrent protection see unit rating plate 1 Couper le courant avant de faire letretien 2 Employez uniquement des conducteurs en culvre 9 Ne convient pas aux installations des plus de ...

Page 29: ...N BROWN BROWN BLACK BLACK ORANGE BLUE RED GREEN YELLOW RED RED ORANGE BLUE YELLOW BLACK GREY GREEN BLACK BLACK GREEN WHITE YELLOW RED 460 Volt Three Phase 60Hz 3 If any of the original wire as supplied with the furnace must be replaced it must be replaced with wiring material having a temperature rating of at least 105 C 4 For supply wire ampacities and overcurrent protection see unit rating plate...

Page 30: ...35 Remove refrigerant when above curve Add refrigerant when below curve Figure 14 Charging Chart for 3 Ton Units Liquid Pressure psig Liquid Temperature F R6GD X48 Charging Chart Cooling 200 220 240 260 280 300 320 340 360 380 400 420 440 460 480 500 520 540 560 580 600 75 80 85 90 95 100 105 110 115 120 125 130 135 Add refrigerant when below curve Remove refrigerant when above curve Figure 15 Cha...

Page 31: ... F R6GD X60 Charging Chart Cooling 200 220 240 260 280 300 320 340 360 380 400 420 440 460 480 500 520 540 560 580 600 75 80 85 90 95 100 105 110 115 120 125 130 135 Remove refrigerant when above curve Add refrigerant when below curve Figure 16 Charging Chart for 5 Ton Units ...

Page 32: ...teur qualifié un organisme de service ou le fournisseur de gazstaller service agency or the gas supplier Ne pas entreposer ni utiliser de l essence ni d autres vapeurs ou liquides inflammables dans le voisinage de cet appareil ni de tout autre appareil QUE FAIRE S IL Y A UNE ODEUR DE GAZ Ne pas tenter d allumer aucun appareil Ne toucher à aucun interrupteur électrique n utiliser aucun téléphone da...

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Page 36: ..._____________________________________ UnitInstalledMinimumclearancesper Figure 2 page 7 YES NO INSTALLER NAME CITY _______________________ STATE ________________ Has the owner s information been reviewed with the customer YES NO Has the Literature Package been left with the unit YES NO ELECTRICAL SYSTEM Electrical connections tight YES NO Line voltage polarity correct YES NO Rated Voltage ________...