Central Boiler MaXIM M255 P Owner'S Manual Download Page 22 | Manualshive

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Section 6 - System Installation

MAXIM THERMOSTATIC VALVE - HOW IT WORKS

NOTE: With higher heat loads, it may be necessary to change the water temperature setpoint on the

FireStar controller to be no less than 185˚F.

NOTE: When the thermostatic valve allows a trace flow, enough water will pass through for the

backup indoor heating system to backfeed heat to the outdoor furnace and water lines, protecting

against freezing.

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Summary of Contents for MaXIM M255 P

Page 1: ...WOOD PELLET FURNACE OWNER S MANUAL M255 P M255 PE Portland Oregon USA OMNI Test Laboratories Inc Tested Listed By US Save This Manual For Future Reference p n 9000311 REV A 15 MAY 2015 117 O 24 2...

Page 2: ...n to deliver heat at rates ranging from 0 to 165 215 Btu hr This wood heater has a manufacturer set minimum low burn rate that must not be altered This wood heater needs periodic inspection and repair...

Page 3: ...VE HOW IT WORKS 22 Purging Air from the System Manual Air Bleeders 23 WATER HEATER INSTALLATION 23 EXISTING FORCED AIR INSTALLATION 24 Thermostatic Controls 27 HEATING MULTIPLE ZONES OR BUILDINGS 28 H...

Page 4: ...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 Furnace This manual is o...

Page 5: ...water boiler be sure none of the existing system safety controls are disabled WARNING If this appliance is installed inside a building and the LP tank capacity exceeds one pound the tank and regulato...

Page 6: ...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 water level and restore to...

Page 7: ...l Boiler chimney 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 b...

Page 8: ...em contain at least 30 antifreeze concentration mixed with softened water to prevent bacterial growth and minimize minerals in the system Bacterial growth is likely to occur with low antifreeze concen...

Page 9: ...r 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 for the installati...

Page 10: ...slightly higher than the front Smoke can condense into creosote inside the burner auger tube If the burner auger is not sloped down toward the front of the furnace condensation can form in the burner...

Page 11: ...he front NOTE Periodicallycheck thattheoutdoorfurnace is leveled as described in these instructions because frost can cause the foundation to move 5 Install the access panels on the back corner of the...

Page 12: ...nd rod and connect it to the outdoor furnace 1 In the water line trench near the outdoor furnace drive the ground rod into the ground until the top of the ground rod is below the ground surface 2 Remo...

Page 13: ...e all covers for the gas ignition system on the appliance are in place during operation and service WARNING Once the gas supply is connected the appliance and gas connection must be tested for leaks b...

Page 14: ...urning the wood pellets or for 10 minutes at which time the controller will turn off the gas burner Ignition Sequence PE Models The ignition sequence follows a control logic to ensure safe and effecti...

Page 15: ...that can withstand wind Other reinforcement recommendations are shown in Fig 15 Ifextensionsareaddedtothestandardeightfeet 2 4m of chimney the chimney should be reinforced appropriately Fig 15 shows...

Page 16: ...r may perform the following 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 c...

Page 17: ...ld also be used for above ground or winter installations and if the area is likely to be affected by compaction Above Ground or Winter Installations For above ground or winter installations in which t...

Page 18: ...h supply and return lines Pressurize with 50 psi 3 5 kg cm2 of air then check after 30 minutes to see if pressure has dropped A drop in pressure indicates a leak repair as necessary 6 Connect the supp...

Page 19: ...e eight knock out tabs on the floor panel of the furnace to accommodate the water lines These align with the hollowed out area in the foundation specifications Fig 6 The pump access area in the back r...

Page 20: ...sary remove the four screws and rotate the pump body Fig 23 C Do not operate the circulation pump until the entire system has been filled with water and checked for leaks or the pump may be damaged D...

Page 21: ...ners with the cleanout in the lowest position Thermostatic Valves NOTE A 3 4 thermostatic valve must be installed on each set of supply and return lines or warranty can be voided NOTE For additional t...

Page 22: ...necessary to change the water temperature setpoint on the FireStar controller to be no less than 185 F NOTE When the thermostatic valve allows a trace flow enough water will pass through for the back...

Page 23: ...on the top of the water heater see Fig 32 for the hot water heat exchanger NOTE If the water heater has been in service flush the water heater prior to installing the hot water heat exchanger Anode r...

Page 24: ...d 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 exchanger Air flow deflectors need to be in...

Page 25: ...at 185 F 85 C minimum 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 the...

Page 26: ...p n 117 p 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...

Page 27: ...ce is out of fuel Refer to Fig 34 for one possible arrangement 2 An alternative method is to install a line voltage thermostat to control the blower on the forced air furnace In this installation a 12...

Page 28: ...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 29: ...ter baseboard heaters or panel radiators 2 A water to air heat exchanger with a thermostatic ally controlled fan can be installed in the lower part of the building being heated Fig 36 This can increas...

Page 30: ...of water temperature transfer The temperature controller on the outdoor furnace may be adjusted to allow the outdoor furnace to reach water temperatures up to 195 F 91 C Each system will vary in water...

Page 31: ...ndoor system with water from 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 pre...

Page 32: ...urnace Refer to Fig 39 and 40 for proper plumbing methods This horizontal assembly must not exceed a height of 4 inches 10 cm above top of water heater NOTE Outdoor furnace water temp setpoint should...

Page 33: ...s refer to Fig 42 through Fig 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 regulate...

Page 34: ...34 Section 6 System Installation Fig 42 Fig 43...

Page 35: ...35 Section 6 System Installation Fig 44 Fig 45...

Page 36: ...cause severe personal injury death or substantial property damage CAUTION Do not operate the outdoor furnace frequently or for extended periods of time with the water temperature below 150 F 65 C as t...

Page 37: ...ems in Fig 47 Refer to Fig 47 when performing 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 NOT...

Page 38: ...e to fill until the controller no 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 va...

Page 39: ...off or NOTE Fuel must not build up so that it prevents thefueldoorfromclosingasshowninFig 50 This is an indication the burner auger is obstructed or has quit turning If this condition exists inspect t...

Page 40: ...ce is an important part of optimal operation Smoke in the hopper is an indication that the air flow through the furnace is restricted obstructed or different than it should be CAUTION Operating for ex...

Page 41: ...o Leveling the Outdoor Furnace Regular maintenance and inspections can help extend the life of your outdoor furnace and prevent high cost repairs This table is meant to serve as a general guideline un...

Page 42: ...ator as shown in Fig 56 Use the cleaning rod provided to pull the ash forward to the ash collection area Fig 56 2 It is important to remove the ash in the firebox before it solidifies to prevent seali...

Page 43: ...be necessary to kneel down at the back of the furnace to look through each heat exchanger passageway The heat exchangers taper up from the back of the furnace to the front Pay particular attention to...

Page 44: ...e the burn chamber when removing it through the firebox opening Inspecting and Cleaning 1 Inspect the aerator and burn chamber for any build up of mineral deposits especially in and around the combust...

Page 45: ...he furnace and set aside 3 Remove the 1 2 silicone tubing from the thermal valve leaving it attached to the discharge tube Blow air through the tubing to clean Connect the silicone tubing to the therm...

Page 46: ...e burner auger into the firebox Do not hit the bushing 7 Remove the burner auger from inside the firebox Clean the Affected Areas 1 Inspect the bottom of the hopper and remove any wet fuel from the op...

Page 47: ...om the thermal valve then place a small cup under the outlet on the valve 4 Push down on the red cap of the thermal valve and run a small amount of water through the valve to make sure it is operating...

Page 48: ...o the furnace The nitrite level of the water in the furnace will not increase unless Corrosion Inhibitor Plus is added For example if a water test in the fall of the year indicates a pH of 8 5 and a n...

Page 49: ...from the valve on the hot water heater Fig 69 or from the furnace drain valve Fig 70 Fig 69 Valve can be used to obtain sample of treated water from furnace Fig 70 Before collecting the sample drain...

Page 50: ...osion Inhibitor Plus p n 1650 as needed If Corrosion Inhibitor Plus is added run the circulation pump for two days to thoroughly mix in the new corrosion inhibitor If water is added bring the water up...

Page 51: ...ly insulated ceilings 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 fitt...

Page 52: ...r water quality Water with high amounts of solids sand or dirt can cause frequent pump failure Use softened and or filtered water E BURNING AN EXCESSIVE AMOUNT OF FUEL 1 High volume water heating High...

Page 53: ...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 condensation in the firebox set the...

Page 54: ...tion 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...

Page 55: ...o soften the deposits Inspect for cracked insulation damage or for any loose components 6 Combustion fan obstructed Inspect the combustion fan and remove any obstructions 7 Air proving switch tubes ob...

Page 56: ...ox White Black Fire Star Controller Power White Neutral Green Ground Black Line Voltage From 15 Amp Breaker White Neutral Green Ground Ground Rod Kit p n 6593 Recommended Maximum Load 10 Amp 5 Amp p n...

Page 57: ...power snap disc 120V Pin Color Description Voltage 7 Violet Fan control 5 VDC 8 Green Black Low voltage ground 5 VDC 9 Red Spare 5 VDC 5 VDC 18 Pink Burn back snap disc 5 VDC 19 Blue Black Water level...

Page 58: ...cted to Hopper Panel BLK Water Temperature Sensor High Limit Snap Disc Water Level Sensor Connect to 115VAC Power Supply 15 Amp Min Burn Chamber Thermocouple Burner Auger Fan Air Proving Switch Burner...

Page 59: ...ngs and plates 6260 9395 9146 9097 9224 9243 9105 9787 Fan 9221 6180 5349 3100597 9296 1336 9332 9297 1085 3044 5349 5348 10719 3667 1200053 101 9125 021 T 9125 202 G 9124 021 T 9124 202 G 6797 2 9220...

Page 60: ...ide the furnace s specifications accident abuse misuse misapplication or parts that are not factory installed c service performed by anyone other than Central Boiler unless authorized by Central Boile...

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