Central Boiler MaXIM M255 PE, Owner'S Manual

Page 1: ...WOOD PELLET FURNACE OWNER S MANUAL M255 PE Portland Oregon USA OMNI Test Laboratories Inc Tested Listed By US Save This Manual For Future Reference p n 9000838 REV A 0117PS024S 0117PS024E...

Page 2: ...ence Model Serial Number Installation Date Dealership Name Phone Number Owner Name INSTALLATIONS IN MASSACHUSETTS 1 All installation components must be products approved in the Commonwealth of Massach...

Page 3: ...g Air from the System Manual Air Bleeders 22 WATER HEATER INSTALLATION 22 EXISTING FORCED AIR INSTALLATION 23 Thermostatic Controls 26 HEATING MULTIPLE ZONES OR BUILDINGS 27 HYDRONIC INSTALLATIONS 28...

Page 4: ...ection Store this manual in a readily accessible location for future reference Foreword This manual is to be used as a guideline for the installation operation and maintenance of the Maxim Wood Pellet...

Page 5: ...es 48 122 cm from the front 8 20 cm from the chimney 27 68 5 cm from the top The foundation must be noncombustible WARNING Use only chimneys listed to UL 103 HT for installation The chimney and flue p...

Page 6: ...cool before draining water from the outdoor furnace Never drain water from the outdoor furnace with live ash or fire in the firebox If the water in the outdoor furnace ever boils be sure to check the...

Page 7: ...ey components Parts are available from an authorized Central Boiler dealer Removing from Pallet The outdoor furnace is secured to the shipping pallet with four brackets To remove these brackets loosen...

Page 8: ...ontain at least 30 antifreeze concentration mixed with softened reverse osmosis or deionized water to prevent bacterial growth and minimize minerals in the system Bacterial growth is likely to occur w...

Page 9: ...ing source Consider prevailing winds and the direction exhaust from the chimney will travel The shorter the distance between the outdoor furnace and building s being heated the lower the cost will be...

Page 10: ...ocks Leveling the Outdoor Furnace CAUTION The back of the outdoor furnace must not be lower than the front of the outdoor furnace The Maxim should be leveled so that the back of the transition box i e...

Page 11: ...indicates that the back of the transition box is slightly higher than the front NOTE Periodicallycheck thattheoutdoorfurnace is leveled as described in these instructions because frost can cause the...

Page 12: ...Remove the side and back panels then route the ground wire from the ground rod under the outdoor furnace base and over to the bottom left corner at the back of the outdoor furnace 3 Secure the ground...

Page 13: ...ch will close completing the ignition relay control circuit 4 The electric ignitor will warm up and heat the air blowing across it into the burn chamber 5 The auger will cycle periodically to feed the...

Page 14: ...ponents Parts are available from an authorized Central Boiler dealer The installation of a spark arrester is recommended particularly where there are dry conditions or where there is combustible mater...

Page 15: ...wing test to check for proper draft 1 Drill a hole in the chimney inspection cover then with the outdoor furnace and chimney at normal operating temperature use a manometer to check draft Flue draft s...

Page 16: ...a is likely to be affected by compaction Above Ground or Winter Installations For above ground or winter installations in which the supply and return lines can not immediately be buried underground Ce...

Page 17: ...ee if pressure has dropped A drop in pressure indicates a leak repair as necessary 6 Connect the supply and return lines to the outdoor furnace and the existing heat emitter s Fig 19 shows some of the...

Page 18: ...ENTRAL PEX 3 4 1 CENTRAL PEX 1 CENTRAL PEX 1 CENTRAL PEX 1 CENTRAL PEX Side View Rear View Return Return Supply Supply There are eight knock out tabs on the floor panel of the furnace to accommodate t...

Page 19: ...ater and checked for leaks or the pump may be damaged D Insulate the areas around the supply and return lines Fig 24 and pump s being careful not to block the area around the louvers then install and...

Page 20: ...e installed at the outlet side of the pump to remove foreign particles which may be present in the water Always install Y strainers with the cleanout in the lowest position Optional Thermostatic Valve...

Page 21: ...s off flow to heat emitter s Valve bypasses heat emitter s Valve allows full flow to heat emitter s Valve shuts bypass Valve allows partial flow to heat emitter s Valve allows partial bypass Note Top...

Page 22: ...lation When installing a domestic hot water heat exchanger the hot supply line from the outdoor furnace should be plumbed first to the water heater heat exchanger and then to the balance of the heatin...

Page 23: ...s larger than the heat exchanger it should be mounted in the center without gaps on the sides that would allow air to flow around the heat exchanger All air must be directed through the face of the ex...

Page 24: ...nimum NOTE On multi speed fans cap and tape off any extra wires NOTE Installer must comply with all applicable codes and regulations NOTE This configuration allows use of a 24 volt thermostat on older...

Page 25: ...n 255 p n 200 p n 372 p n 116 p n 591 p n 118 p n 1330 p n 133 p n 199 p n 5349 p n 5348 p n 5349 p n 5348 p n 116 p n 116 p n 1330 p n 117 p n 199 p n 255 p n 5349 p n 5348 Optional Copper Fittings n...

Page 26: ...it does not affect the forced air system thermostat NOTE If the low water temperature switch is not installed the fan will run continuously even when the outdoor furnace is out of fuel This will keep...

Page 27: ...with the direction of flow as designated by the arrow on the swing check valve This will prevent reverse circulation and loss of heat on multiple zones if one pump fails Hose bibs p n 199 should be in...

Page 28: ...controlled fan can be installed in the lower part of the building being heated Fig 36 This can increase the amount of heat added to the building helping to maintain a constant temperature This heat e...

Page 29: ...ng circulation continuously through the existing boiler and heat exchanger This will maintain the maximum temperature in the heat exchanger for heat transfer to the existing boiler Note the water flow...

Page 30: ...om the domestic water line CAUTION Do not apply more pressure to the indoor system than the pressure relief valve on the existing boiler is rated for 2 Bleed air from the pressurized indoor system the...

Page 31: ...ced Air Furnace NOTE 4 x Pipe Dia Max e g for 1 pipe fittings must not be more than 4 apart NOTE Installer must comply with all applicable codes and regulations Bleeder Elbow Flow Check Valve Zoning P...

Page 32: ...45 4 The spacing of each circuit is 12 30 5 cm between pipes The water circulates in opposite directions to provide an even distribution of heat The mixing valve regulates the temperature of the water...

Page 33: ...ust comply with all applicable codes and regulations RC Y W B R O RH G W 24 Volt Thermostat Multi Zone In Floor Fig 42 H C M R Plenum Forced Air Furnace Water Heater Zoning Pump This horizontal assemb...

Page 34: ...mostatic Valve Return 1 2 Central PEX 1 Central PEX Top View Water Heater 591 Note The fittings kit for installing p n 591 is p n 2053 Hot Supply from Pump on Outdoor Furnace NOTE 138 118 Cold 164 126...

Page 35: ...t tubs typically have high water flow rates from 30 to 50 gpm Because the MPN Series is a high efficiency heat exchanger and does not require the full pool gpm flow a bypass balancing valve must be us...

Page 36: ...rforming these steps All air must be purged from the water lines when filling the system Also the circulation pump s must be installed in the hot supply line s NOTE If using the valve on the water hea...

Page 37: ...o longer indicates 15 Close valves 1 and 3 Disconnect hose A and replace caps on valves 1 2 and 3 16 Open the valve on the hot supply line of the outdoor furnace and valve 5 NOTE The valves on the hot...

Page 38: ...may cause a feed rate interruption An interruption in fuel flow may result in an empty burn chamber or if the blockage frees itself after the fire has gone out a burn chamber full of unburned fuel Fi...

Page 39: ...e water level in the outdoor furnace is safe when the water level indicator rod is above the vent cap see Fig 56 1 Do not burn garbage gasoline rubber engine oil naphtha plastics treated wood cord woo...

Page 40: ...ck the following Heat exchanger obstructed clean the heat exchanger see Fig 55 Aerator covered by ash do not allow ash in the burn chamber to accumulate over the aerator Use the cleaning rod to pull a...

Page 41: ...hing to a new brand of wood pellets check ash level daily to determine rate of accumulation Regular maintenance and inspections can help extend the life of your outdoor furnace and prevent high cost r...

Page 42: ...ot allow ash in the burn chamber to accumulate over the aerator as shown in Fig 57 Use the cleaning rod provided to pull the ash forward to the ash collection area Fig 57 Aerator 2 It is important to...

Page 43: ...at exchangers becomes restricted see Fig 61 To inspect the heat exchangers remove the chimney transition cover on the back of the furnace and open the firebox door It will probably be necessary to kne...

Page 44: ...the firebox door Using Fig 65 as a reference place a 3 4 thick 4 ft long board under the front of the burn chamber Use the board to pry up the front of the burn chamber then push the board in until i...

Page 45: ...require electricity to operate If during a power outage a high temperature condition is detected in the burner auger area the thermal valve is designed to release a small amount of water into the burn...

Page 46: ...on box then remove the burner auger motor and motor mount plate 5 Remove the key from the keyway slot on the auger shaft and set aside for assembly 6 Using a wooden block tap the burner auger into the...

Page 47: ...will be used to fill the outdoor furnace softened water is recommended Test strips for testing pH are included in the water test kit which is provided with the outdoor furnace 1 Collect a small sample...

Page 48: ...ove If additional space is needed record on a separate sheet of paper It is very important to keep record of water test results including the date pH and Moly level The pH and Moly test strips and ind...

Page 49: ...s or heat exchanger area should be removed When cleaning the firebox be sure to wear the appropriate personal protective gear CAUTION To minimize corrosion caused by accumulated ash it is especially i...

Page 50: ...ings can cause excessive fuel consumption and or heating problems 11 Supply and return lines installed incorrectly Make sure the hot supply water line is connected to the correct fitting on the outdoo...

Page 51: ...oftened and or filtered water E BURNING AN EXCESSIVE AMOUNT OF FUEL 1 High volume water heating High volume water heating e g car wash swimming pool etc will require high fuel consumption 2 Excessive...

Page 52: ...system is too large the water in the system will not reach high enough temperatures and corrosion can occur Re evaluate the system and match heat load to the outdoor furnace NOTE To reduce condensatio...

Page 53: ...to inspect the heat exchanger for obstructions or restrictions and clean if necessary 2 Aerator covered by ash do not allow ash in the burn chamber to accumulate over the aerator Use the cleaning rod...

Page 54: ...erating properly p n 7000525 Ne pas bloquer obturer ou sceller l ouverture du conduit d vacuation Sceller l ouverture pourrait entra ner une augmentation dangereuse de la pression ATTENTION Do not plu...

Page 55: ...tuator Breaker On Off Igniter A Optional 5A 5A Igniter B Fuel Door Transformer Air Proving Switch To Air Proving Switch Burner Temperature Sensor Auxiliary Auger Connection Inside Hopper GRN WHT BLK P...

Page 56: ...is void if the owner fails to maintain the proper amount of corrosion inhibitor in the systems or burns materials in the firebox other than premium grade wood pellets This warranty excludes the cost o...