Name: Slant/Fin VSL-160B
Brand: Slant/Fin
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Part # 819506000-R00 Printed in U.S.A. 513 PUBLICATION VSL-40 rev.B

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INSTALLATION INSTRUCTIONS

DIRECT-VENT SEALED COMBUSTION CONDENSING BOILER

HOT WATER MODEL VSL-160B & VSL-160C (COMBI BOILER)

GAS-FIRED BOILER FOR NATURAL AND L.P. PROPANE GASES

VSL Boiler

CUS

LLC

This manual must be left with owner and should be

hung on or adjacent to the boiler for reference.

Default Chapter1
- Installation Instructions1
Safety Instructions2
Table of Contents6
1 Installation - Code Requirements8
- Regulations and Guidelines8
- Commonwealth of Massachusetts Installation Requirements8
2 General Information9
- Key to Symbols Used9
- Description of Model9
3 Main Components10
4 Function Overview12
- Intended Use and Functions of the Boiler13
- Efﬁ Ciency up to 9813
5 INSTALLATION - Location14
- Choosing the Installation Location14
- Transporting the Boiler15
6 INSTALLATION - Mounting the Boiler16
- Mounting the Boiler16
7 INSTALLATION - Water Connection17
- Water Connections17
- Supply and Return Piping17
- Relief Valve19
- Converting a Combi Boiler into a Heating Only Boiler20
- Domestic Hot and Cold Water (Only for 160-C Model)21
- Condensate Disposal24
8 INSTALLATION - Electrical Connections25
- Electrical Connections: Overview25
9 INSTALLATION - Connecting to an Indirect Water Heater28
- Connecting the Boiler to an Indirect Water Heater28
- Opening the Instrument Panel29
10 INSTALLATION - Vent and Combustion Air30
- Removing of a Boiler from a Common Venting System30
- Prevent Combustion Air Contamination31
- Venting and Air Piping Systems31
- Minimum / Maximum Allowable Combustion Air and Vent Piping Lengths33
- Install Vent and Combustion Air Piping33
- Air Inlet Pipe Materials35
- PVC/CPVC Vent Piping Materials36
- Stainless Steel Vent Piping Materials38
- Polypropylene Vent Piping Materials40
- Single Pipe Vent (Not Sealed Combustion)45
- Determine Location46
- Sidewall Termination - Two Pipes47
- Prepare Wall Penetrations49
- Sidewall Termination - Concentric Vent50
- Multiventing Sidewall Terminations51
- Vertical Termination - Two Pipes52
- Vertical Termination - Concentric Vent54
  - Multiventing Vertical Terminations55
  - Alternate Vertical Concentric Venting56
- Existing Vent as a Chase57
11 INSTALLATION - Gas Supply58
- Gas Supply Piping58
- Pipe Sizing for Natural Gas59
- Propane Gas59
- Check Inlet Gas Supply59
- Operating at High Altitudes59
- Convert the Boiler from Natural Gas to Propane Gas or Viceversa60
12 Start-Up62
- Operating62
- General Warnings Concerning Gas Supply64
- Conﬁ Rming the Boiler's Gas Type64
- Gas Type Conversion64
- Start-Up of the Boiler64
- Ignition Control Testing64
- Gas Supply Pressure Checking65
- Check the Combustion Air Pressure66
- Checking and Adjusting CO2 Levels67
- Adjusting the Heating Capacity68
- Domestic Hot Water Fl Ow Rate Adjustment (160-C Model Only)68
- Cold Start Boiler68
13 Use69
- Check Heating System Pressure69
- Overview69
- Displays69
- Start-Up Procedure70
- Summer Mode70
- Winter Mode70
- Adjusting the Domestic Hot Water Temperature71
- Heating System Temperature Adjustment71
- Heating System Type Selection71
- Outdoor Reset Adjustment71
- Outdoor Reset Activation72
- Boiler Switch Settings74
- Delays, Alarms and Protective Actions74
- Circulator Pump and Three Way Valve Protection74
- Boiler's Freeze Protection74
- Display in Energy Saving Mode75
- Users' Menu75
- Installer's Menu76
- Diagnostics78
14 Maintenance83
- Care and Maintenance83
- Removing the Casing86
- Cleaning the Burner and Primary Heat Exchanger, Fl Ue Gas Side87
- Correct Positioning of the Ignition and Fl Ame Detection Electrodes88
- Domestic Hot Water Heat Exchanger (Only for 160-C Model)88
- Condensate Trap Cleaning89
- Circulator Pump Motor Replacement (Only for 160-C Model)90
- Expansion Tank Pressure (Only for 160-C Model)90
- 3-Way Valve Removal (Only for 160-C Model)91
- Draining the Heating Side of the Boiler92
- Draining the Domestic Hot Water Side of the Boiler92
- Overrides92
- Water and Fl Ue Temperature Sensor93
- Outdoor Temperature Sensor (Optional)93
- Functional Wiring Diagram94
- Multiwire Wiring Diagram96
15 Technical Data98
16 Spare Parts99
- Spare Parts List102
17 Read out Flow Chart104

Slant/Fin VSL-160B User Manual

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Slant/Fin VSL-160B Specifications

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Brand	Slant/Fin
Model	VSL-160B
Category	Boiler
Language	English