Burnham MPO - MPO 84 Thru MPO 231 Water Boiler

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Figure 1: MPO 84 Thru MPO 231 Water Boiler

Main Page

Introduction2
Safety Precautions3
Table of Contents5
MPO 84 Thru MPO 231 Water Boiler6
Dimensional Data7
Rating Data7
Pre-Installation8
Inspect Shipment8
Locate Boiler8
Minimum Installation Clearances to Combustible Materials8
Provide Combustion and Ventilation Air9
Packaged Boiler Assembly - Trim and Control10
Remove Crate10
Remove Boiler from Skid10
Procedure to Open, Close and Secure Burner Swing Door10
Partial Front View - Burner Swing Door Mounted to Boiler11
Top View - Burner Swing Door Mounted to Cast Iron Block Assembly12
Inspect Swingdoor Insulation and Rope Gasket13
Field Assembly of Boiler Trim and Controls13
Burner Swing Door Fully Closed but Not Properly Secured or Sealed13
Supply Manifold and Aquastat Control Assembly Details14
Internal Junction Box and Wiring Harness Details15
Optional Equipment - Low Water Cut-Off (LWCO) Control Assembly Details16
Optional Equipment - Auxiliary Limit Control Assembly Details16
Return Manifold and Relief Valve Assembly Details17
Piping Arrangement for Drain Valve and Indirect Water Heating Return18
Baffle Usage19
Bafﬂe Orientation in Flueways19
Oil Burner Installation20
Water Boiler Piping21
Evaluate the Existing Water System21
Connect System Supply and Return Piping to Boiler21
Preferred Water Boiler Piping for Zone Valve Zoned Heating System23
Recommended Piping for Combination Heating and Cooling System24
Indirect Water Heater Piping25
Connect Alliance Indirect Water Heater Piping25
Water Heater Piping on Circulator Zoned Heating System25
Water Heater Piping on Zone Valve Zoned Heating System25
Venting26
Chimney Venting26
Chimney Connector26
Recommended Vent Pipe Arrangement and Chimney Requirements27
Proper and Improper Locations of Draft Regulator27
Stack Temperature28
Smokebox Pressure Tapping for Checking Draft at Breech28
Minimum Clearances29
Optional Air Intake Piping Installation29
I R P - E N I S a T L L T a O I N29
Electrical31
General31
Install a Room Thermostat31
T a R E P P I N I . G31
Schematic Wiring Diagram32
Boiler Sequence of Operation32
Oil Piping33
Single Pipe Oil Line33
Two Pipe Oil Lines34
Two-Stage Units34
Single-Stage Units34
System Start-Up35
Inspect Installation before Starting Burner35
Fill Heating System with Water35
Check Controls, Wiring and Burner35
Adjust Control Setting36
LED Error Codes36
L7248C Circuit Board Layout - Horizontal Mount36
Display Readout Deﬁnitions36
Adjust Oil Burner before Starting37
Start Oil Burner37
Adjust Oil Burner While Operating37
Controller Operating Sequence37
T N N I . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I I R E P a R I P a T R . S37
L1/L2 and V1 Head Electrode Positioning and Gun Setting38
Check for Clean Cut off of Burner39
Test Controls39
R7184 Terminals, LED and Reset Button39
Check Oil Primary Control40
Cad Cell Resistance When Sensing Flame40
Cad Cell Location40
If Controls Do Not Meet Requirements41
Product Safety Information42
AVOID Breathing Fiber Particulates and Dust42
Precautionary Measures42
First Aid Procedures42
Maintenance and Service Instructions43
Maintenance of Low Water Cut-Off Devices43
Boiler and System Cleaning Instructions for Trouble Free Operation43
Frequent Water Addition44
Attention to Boiler While Not in Operation44
Boiler Cleaning45
Clean the Flueways45
Clean the Combustion Chamber45
Reassemble Boiler45
Troubleshooting47
Combustion47
Oil Primary Control47
Repair Parts48
Service Record49
Bare Boiler Assembly50
I E E L T C I R a C51
Jacket Assembly54
Trim and Controls56
I I L I P I N I57
Becket AFG Burner58
Low Water Cut-Off on Hot Water Boilers60
How to Pipe60
How to Wire60
How to Test60
LWCO Location61
Burner Specifications63
Limited Warranty64

Burnham MPO - MPO 84 Thru MPO 231 Water Boiler

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