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  MACH®  Series

 

Gas-Fired Boiler 

Maintenance 

 

 

Page  31 

5.1.4  Semi-Annually (every 6 months) 

In addition to the recommended monthly service: 

1.  Clean burner of any accumulated dust or lint.  See 

Section 5.2 on "Cleaning the Burner." 

2.  Inspect burner for any signs of deterioration or 

corrosion.  Replace immediately if deterioration or 
corrosion is evident. 

Installation and service must be performed by a 
qualified installer or service agency who has been 
trained on the Patterson-Kelley MACH boiler. 

The blower motor is permanently lubricated and does 
not require periodic lubrication. 

 

5.1.5  Annually 

In addition to the recommended monthly service: 

1.  Inspect and clean the inlet screen of any 

accumulated dust or lint.    

2.  Check burner and clean off any soot or foreign 

material that may have accumulated.  See Section 
5.2 on "Cleaning the Burner."  Check for corrosion 
of the burner and its parts. If there is evidence of 
deterioration or corrosion, replace immediately. 

3.  Inspect combustion chamber when the burner is 

removed for inspection.  Note any signs of 
deterioration.  Clean as necessary. 

4.  Inspect and clean heat exchanger.  Use vacuum to 

remove accumulations from the heat exchanger 
pins and surfaces.  Clean the casting pins by 
flushing with clean water and air drying.  Do not 
use any cleaning agents or solvents.  A soft nylon 
brush may be used in accessible areas.   

5.  Drain and flush the inside of the heat exchanger as 

required (separate from system flush). 

6.  Examine the venting system at least once a year.  

Refer to the vent manufacturer's instructions for 
requirements in addition to those listed below. 

a.  Check all joints and pipe connections for 

tightness. 

b.  Check pipe for corrosion or deterioration.  If 

any piping needs replacing, do so 
immediately. 

7.  Qualified service personnel should thoroughly 

inspect the heating system and correct any 
problems prior to re-starting the boiler.   

8.  Perform combustion analysis and readjust to 

manufacturer's specifications as necessary.  It is 
recommended that a copy of this report is filed for 
future reference. 

9.  Perform a leak test of the gas valves in accordance 

with the manufacturer's instructions.   

 

Installation and service must be performed by a 
qualified installer or service agency who has been 
trained on the Patterson-Kelley MACH boiler. 

 

5.2

  

C

LEANING THE 

B

URNER

 

 
1.  Lockout and tagout gas supply to the boiler. 

2.  Lockout and tagout electrical power to the boiler. 

3.  Remove the top cover of the boiler. 

4.  Disconnect the electrical connections to the blower 

and gas safety shut off / control valves. 

5.  Unbolt burner hood and remove the gas train 

assembly.   

6.  Carefully remove the burner.  Use low pressure air 

to remove any dust or lint from the burner.  Using 
a soft clean cloth, wipe the inside surface of the 
burner.  DO NOT wipe the mesh side (flame side) 
of the burner. 

 

 

5.3

  

A

FTER 

A

LL 

R

EPAIRS OR 

M

AINTENANCE

 

 
1.  Follow "Pre-Start Check List" (Section 3.10) and 

all "Safety Checks" (Section 3.11). 

2.  Check gas pressure.  (Section 3.12.2.) 

3.  Perform combustion check.  Adjust gas flow if 

necessary.  (Section 3.12.4.).   

 

 

Содержание MACH-05

Страница 1: ...18301 Telephone 877 728 5351 Facsimile 570 476 7247 www pkboilers com MACH 05 C S A Design Certified Complies with ANSI Z21 13 CSA 4 9 Gas Fired Low Pressure Steam and Hot Water Boilers ASME Code Sect...

Страница 2: ...MACH Series Gas Fired Boiler...

Страница 3: ...6 10 Sealing the Intake Duct 12 3 6 11 Intake Duct Connection to Boiler 12 3 6 12 Intake Duct Terminations 12 3 6 13 Vent Elbows 13 3 7 Gas Piping 13 3 7 1 Gas Supply Piping by Installer 14 3 8 Boile...

Страница 4: ...installing operating or servicing boiler c WARNING 1998 HCS Inc 800 748 0241 WARNING It is essential to read understand and follow the recommendations of this manual before installing operating or ser...

Страница 5: ...erated and serviced in accordance with instructions contained in this manual Installed by qualified personnel in accordance with designs prepared by qualified facility engineers including structural m...

Страница 6: ...n any electrical components 2 5 2 Burn Fire and Explosion Hazards General Warning Hot Surface Reorder No 6020 V2WHPK Improper use may result in fire or injury Read instructions safety manual before in...

Страница 7: ...shut off control valves Maintain all gas train components in good condition Do not alter wiring connections Annual inspection by factory trained personnel for proper set up and operation is recommende...

Страница 8: ...ety relief valve for proper operation Do not operate boiler with faulty relief valve 2 5 6 Slip Fall Hazards Improper use may result in fire or injury Read instructions safety manual before installing...

Страница 9: ...The heat exchanger is constructed and stamped in accordance with ASME Boiler and Pressure Vessel Code Section IV for 50 psig maximum operating pressure and or 200 F maximum temperature Other codes or...

Страница 10: ...Surface A B C D Combustible Surfaces 36 24 24 24 Non combustible Surfaces 36 24 24 C Do not put pipes ducts etc in this area above the boiler CAUTION Bumping hazard from overhead ducts Install all com...

Страница 11: ...Combustion and Ventilation of the National Fuel Gas Code ANSI Z223 1 latest edition or applicable provisions of the local building codes In Canada combustion air openings shall comply with CSA B 149...

Страница 12: ...recommended Consult your local vent manufacturer for proper sizing 3 6 1 Barometric Damper WARNING Do not use a barometric damper with this boiler This is a positive pressure system combustion gas ma...

Страница 13: ...e boilers Dimensions listed above or those illustrated are minimum and may or may not be sufficient for conditions at a specific job site A tee must be of approved design and adequate capacity 3 6 5 V...

Страница 14: ...se an unsafe condition 3 Insofar as is practical close all building doors and windows and all doors between the space in which the appliances remaining connected to the common venting system are locat...

Страница 15: ...on optional when roof venting Air Inlet tee mounted horizontally Roof Sidewall Exhaust Vent Sidewall venting requires vertical tee termination Air Inlet Tee mounted horizontal Sidewall Roof Exhaust Ve...

Страница 16: ...per sealing of the intake ductwork is necessary to prevent infiltration of air from conditioned space Joints in PVC or CPVC must be cemented For galvanized duct wrap each joint and seam with adhesive...

Страница 17: ...ressure to less than 14 W C WARNING All threaded connections must be made using a pipe compound that is resistant to the action of liquefied petroleum gases Do not use Teflon tape on gas line threads...

Страница 18: ...sure tested and must be checked for leaks before being placed into service Test with compressed air or inert gas if possible The boiler must be disconnected at the boiler manual shut off valve located...

Страница 19: ...y be exposed to refrigerated air circulation must be equipped with flow control valves or other automatic means to prevent gravity circulation of the boiler water during the cooling cycle 3 8 2 Boiler...

Страница 20: ...t the system should be considered Installation of external limit controls may be required by certain codes or in certain installations Review applicable local codes for details Drain Valve and Piping...

Страница 21: ...debris from construction or maintenance Clean and flush old piping thoroughly before installing the boiler IMPORTANT Under no circumstances should the hydronic system be flushed while the boiler is at...

Страница 22: ...ING After checking controls by manual adjustment make sure they are always reset to their proper settings 3 11 1 Test of Ignition Safety System MACH C300 C450 Test the ignition system safety shutdown...

Страница 23: ...t be manually reset prior to resetting the boiler at the display panel Readjust the high limit thermostat to the desired setpoint 3 11 4 Test of Gas Pressure Switch Low Gas Pressure Switch The boiler...

Страница 24: ...Parameter PArA Parameter settings 1st digit with a dot 1 125 Information InFo display boiler sensors 1st digit with a blinking dot 1 180 Standby Mode The display defaults to this mode at startup or re...

Страница 25: ...used 68 158 2 DHW system ON OFF 0 OFF 1 ON 2 OFF pump continuous 3 ON pump continuous 3 Comfort heat system ON OFF 0 OFF 1 ON 2 OFF pump continuous 3 ON pump continuous 4 Setpoint or max boiler temp o...

Страница 26: ...h below Internal Setpoint 145 150 155 160 165 170 175 0 10 20 30 40 Time Boiler Temperature Boiler Set Point Boiler Turns On Boiler Turns Off Domestic Priority If an indirect domestic hot water DHW ta...

Страница 27: ...setpoint of the boiler is increased The boiler modulates to maintain this setpoint The setpoint is adjusted according to the above parameters The boiler setpoint will be the maximum value 180 F when...

Страница 28: ...8 5 VDC when it will be 180 F The setpoint will remain at 180 F even if voltage is increased further Analog Input to Control Firing Rate Analog Input Firing Rate 0 10 20 30 40 50 60 70 80 90 100 0 1 2...

Страница 29: ...n and the button for 3 seconds activates the Test Mode High function to drive the boiler output to maximum The display will blink and indicate H in the first digit of the display to indicate the boile...

Страница 30: ...the boiler Check combustion readings using a combustion analyzer If combustion readings are not in accordance with Table 3 1 adjust as follows Using a slotted screw driver or 2 mm hex wrench set the m...

Страница 31: ...eve the desired CO2 or O2 level see Table 3 1 for correct settings There will be a slight time delay between the adjustment and the response of the CO2 O2 measuring instrument Adjust the settings in s...

Страница 32: ...er to Troubleshooting Section 5 5 to determine the cause of the fault prior to start up WARNING Do not use this boiler if any part has been under water Immediately call a qualified service technician...

Страница 33: ...0 275 000 8 amps or less 450 450 000 437 414 000 180 414 000 8 amps or less 750 750 000 728 712 500 300 712 500 8 amps or less 900 900 000 873 846 000 360 846 000 8 amps or less 1050 1 050 000 1019 98...

Страница 34: ...corrective action or repair WARNING Check daily to be sure that the boiler area is free and clear of any combustible materials including flammable vapors and liquids 5 1 2 Weekly Observe the conditio...

Страница 35: ...uired separate from system flush 6 Examine the venting system at least once a year Refer to the vent manufacturer s instructions for requirements in addition to those listed below a Check all joints a...

Страница 36: ...ntrol initiates a flame stabilization period of 5 seconds at the ignition rpm of the fan The fan is driven to low fire for 1 minute before the boiler is released to modulation 10 The unit modulates be...

Страница 37: ...e water temperature falls below the high limit temperature the boiler will remain locked out until the switch is manually reset and the front panel reset button is pressed Once the switch and the fron...

Страница 38: ...return water temperature has exceeded the internal high limit temperature setting E 25 Outlet temp rapid change The outlet water temperature is increasing too fast Indicating low flow condition E 28...

Страница 39: ...The outlet water temperature is increasing too fast Indicating low flow condition b 26 High exhaust back pressure The high exhaust back pressure switch is tripped indicating a blocked stack inlet or...

Страница 40: ...n Kelley by calling toll free 877 728 5351 Ask for the Heat Transfer Department The fax number is 570 476 7247 Refer to the parts list shown on the assembly drawing provided with this manual Technical...

Страница 41: ...UTRAL DHW Circ Pump 6 GROUND Boiler Supply Ground 7 GROUND 8 GROUND Aux Ground 9 115 VAC SW OUTPUT Aux Switched Output Pilot duty only 1 amp max 10 115 VAC CIRC PMP CONTACTOR Boiler Circ Pump Pilot du...

Страница 42: ...ure DO NOT ENERGIZE 5 DHW TEMP SENSOR 6 OUTDOOR TEMP SENSOR Thermistor factory option 7 CIRC PMP PWM SIGNAL Pulse Width Modulation 8 COMMON Common to be used with 5 6 7 and 10 when used 9 COMMON Commo...

Страница 43: ...MACH Series Gas Fired Boiler Parts and Technical Support Page 39 6 1 2 Wiring Series C 300...

Страница 44: ...MACH Series Gas Fired Boiler Parts and Technical Support Page 40 6 1 3 Wiring Series C 450...

Страница 45: ...MACH Series Gas Fired Boiler Parts and Technical Support Page 41 6 1 4 Wiring Series C 750 900 1050...

Страница 46: ...1 Main Assembly Mark Description 1 Blower and Gas Train 2 Manifold System Return Boiler Outlet 3 Manifold System Supply Boiler Inlet 4 Cabinet 5 High Temperature Aquastat MACH Series 300 450 MACH Seri...

Страница 47: ...ries Gas Fired Boiler Parts and Technical Support Page 43 6 2 2 Control Panel Mark Description 1 AM 3 Relay Module 2 Boiler Control MACH Series MCBA 3 Transformer 4 Low Water Cutoff 5 Control Mounting...

Страница 48: ...echnical Support Page 44 6 2 3 Display Panel 3 2 1 5 6 7 4 8 Mark Description 1 Circuit Breaker 2 Air Pressure Switch 3 Fastening Clip 4 Display Panel 5 On Off Switch 6 Pressure Temperature Gauge 7 Pa...

Страница 49: ...4 Outside Burner Hood Gasket 5 Burner 6 Burner Flange With Insulation 7 Sight Glass 8 Seal Sight Glass 9 Sight Glass Holder 10 Exhaust Pipe Lip Ring 11 Exhaust Manifold 12 Inspection Cover Gasket 13 I...

Страница 50: ...Burner Hood 2 Burner Hood 3 Burner Hood Gasket 4 Burner 5 View Glass Assembly 6 Heat Exchanger Sectional Castings 7 Exhaust Pipe Lip Ring 8 Condense Collector Exhaust Manifold 9 Inspection Cover Gask...

Страница 51: ...l Support Page 47 6 2 6 C 300 Boiler Gas Train Mark Description 1 Main Gas Shut off Valve 2 Low Gas Pressure Switch 3 Gas Safety Shut off Control Valve 4 Air Gas Manifold 5 Swirlplate 6 Blower 7 Gas L...

Страница 52: ...oiler Gas Train Mark Description 1 Main Gas Shut off Valve 2 Low Gas Pressure Switch 3 High Gas Pressure Switch 4 Gas Safety Shut off Control Valve 5 Gas Manifold Shut off Valve 6 Air Gas Manifold 7 S...

Страница 53: ...1050 Boiler Gas Train Mark Description 1 Main Gas Shut off Valve 2 Low Gas Pressure Switch 3 High Gas Pressure Switch 4 Gas Safety Shut off Control Valve 5 Gas Manifold Shut off Valve 6 Flex Hose wit...

Страница 54: ...which such Product is usually tested under industry standards at of the time of shipment C Any damage to the Product due to abrasion erosion corrosion deterioration abnormal temperatures or the influ...

Страница 55: ...all respects conform and be limited to one 1 year from the date of shipment SEVERABILITY To the extent that any provision of this warranty would be void or prohibited under applicable law such provisi...

Страница 56: ...MACH Series Gas Fired Boiler Appendix Page 52 8 0 APPENDIX Date Hi Low Fire O2 CO CO2 Stack Temp Action By...

Страница 57: ...booster 0 0 0 0 0 0 0 0 0 0 1 minute 30 minutes 12 Outdoor Air Offset 0 F 144 F 0 0 0 0 0 0 0 0 0 0 13 Maximum fanspeed CH hundreds 10 70 60 57 56 54 49 48 56 54 60 58 14 Maximum fanspeed CH units 00...

Страница 58: ...1st digit 2nd CH circuit 0X 2nd CH circuit off X X X X X X X X X X 1X 2nd CH circuit slave 2X 2nd CH circuit master 3X 2nd CH slave Tset depends on potmeter 4X 2nd CH master Tset depends on potmeter...

Страница 59: ...41 41 41 38 Hold boiler water DHW only 32 off 34 F 176 F 32 32 32 32 32 32 32 32 32 32 39 Max Setpoint 2nd CH circuit 50 F 176 F 100 100 100 100 100 100 100 100 100 100 40 Min Setpoint 2nd CH circuit...

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