MODU-FIRE
®
Forced Draft Gas-Fired Boiler 2500-3000
3
1
INTRODUCTION .........................................................................................................5
2
SAFETY .......................................................................................................................5
2.1
General ............................................................................................................................ 5
2.2
Training ............................................................................................................................ 5
2.3
Safety Features ................................................................................................................ 6
2.4
Safety Labels ................................................................................................................... 6
2.5
Safety Precautions ........................................................................................................... 6
3
INSTALLATION ...........................................................................................................8
3.1
Receiving and Storage ..................................................................................................... 8
3.2
Compliance with Codes ................................................................................................... 9
3.3
Setup ................................................................................................................................ 9
3.4
Electrical Connections.................................................................................................... 10
3.5
Inlet Air and Exhaust Venting ......................................................................................... 12
3.6
Gas Piping ...................................................................................................................... 21
3.7
Boiler Water Piping ........................................................................................................ 23
3.8
Burner and Ignition System ............................................................................................ 26
3.9
Pre-Start Check List ....................................................................................................... 26
3.10
Safety Checks ............................................................................................................. 26
3.11
Boiler Operating Control ............................................................................................. 28
3.12
Combustion Adjustment .............................................................................................. 29
4
OPERATION ..............................................................................................................32
4.1
General .......................................................................................................................... 32
4.2
Lighting and Shut-Down Procedures ............................................................................. 32
5
MAINTENANCE .........................................................................................................33
5.1
Maintenance and Inspection Schedule .......................................................................... 33
5.2
Cleaning the Burner ....................................................................................................... 35
5.3
Removing the Heat Exchanger ...................................................................................... 36
5.4
After All Repairs or Maintenance ................................................................................... 36
5.5
Sequence of Operation .................................................................................................. 36
5.6
Troubleshooting ............................................................................................................. 37
5.7
Manual Reset Error Codes – A## .................................................................................. 40
5.8
Auto-reset Error Codes – E## ........................................................................................ 41
6
PARTS/TECHNICAL SUPPORT ...............................................................................42
6.1
Schematic Diagrams ...................................................................................................... 42
7
LIMITED WARRANTY ...............................................................................................54
8
MODU-FIRE
®
FORCED DRAFT BOILER FIRE TEST REPORT ..............................55
Summary of Contents for 1004905923
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Page 49: ...MODU FIRE Forced Draft Gas Fired Boiler 2500 3000 49 6 1 7 Customer Connections ...
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