NTI FTV150 - Plumbing Schematic - Multiple Central Heating Circulators

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FTV I&O Manual │Boiler and Heating System Piping

Figure 10-7 Plumbing Schematic – Multiple Central Heating Circulators (non-Combi)

Figure 10-7 illustrates the basic plumbing requirements for a non-Combi FTV boiler

installation with multiple Central Heating circulators, and an Indirect Water Heater.

Main Page

Hazard Symbols and Definitions1
Table of Contents1
Safety Information2
General Installation Requirements3
User Responsibilities3
Introduction3
- Liquified Petroleum (LP) Propane Information4
- Exhaust Vent / Air-Inlet Piping4
- High Altitude Operation6
Specifications6
- Minimum Clearances for Installation and Service7
- Boiler Area Ventilation Air Openings7
- Wall Mounting Installations7
Boiler Location7
- Closet Installation, Minimum Clearances8
- Wall Mounting Instructions9
- Removing an Existing Boiler from Common Venting System10
- Steps to Removing an Existing Boiler10
General Venting10
- Corrosive Products and Contaminant Sources11
- Installation Using Indoor Combustion Air11
- Combustion Air-Inlet Contamination11
- Direct Vent Installation11
- Mandatory Pre-Commissioning Procedure for Plastic Venting12
- Near Boiler Vent/Air-Inlet Piping12
- PVC/CPVC Piping / PP Piping12
- Stainless Steel Piping12
- Universal Appliance Adapter – Pipe Insertion Depth13
- Exhaust Vent Connection13
- Near Boiler Venting14
- Allowable Vent and Air-Inlet Pipe Size and Lengths16
- Vent/Air-Inlet Pipe Length Determination16
- Approved Vent and Air-Inlet Pipe Material16
- Termination Options – Direct Vent Installation17
- Optional Termination Kits – Direct Vent Installation17
- Optional Vent Termination Kits18
- Sidewall Venting Options – Direct Vent Installation19
- Two-Pipe Termination (Sidewall)19
- Low Profile Termination (Sidewall)19
- Concentric Termination (Sidewall)19
- Concentric Termination (Roof)20
- Two-Pipe Termination (Roof)20
- Roof Venting Options – Direct Vent Installation20
- Two-Pipe Termination (Roof/Sidewall)20
- Sidewall Termination Details – Direct Vent Installation21
- IPEX Concentric Termination (Sidewall)21
- Polypro / Innoflue Termination (Sidewall)21
- Roof Termination Details – Direct Vent Installation22
- IPEX Concentric Termination (Roof)22
- Polypro / Innoflue Termination (Roof)22
- Exhaust Only Termination (Roof)22
- Venting Rules and Guidelines23
- Existing Chimney Chase Way24
- For Installations that Exit the Wall below Grade24
- Outdoor Venting24
- Termination Clearances Quick Reference Table25
Vent/Air-Inlet Termination Clearances25
- Termination Clearance Quick Reference Diagram26
- Illustrations of Termination Clearances26
- Sidewall Termination Diagram26
- Condensate Trap Installation Instructions27
Condensate Drain27
- Condensate Drain Piping28
- Natural Gas to LP Conversion Kit29
Installing Gas Piping29
Gas Line Connection (Typical)30
Lighting the Boiler31
- Initial Start-Up32
- Re-Lighting Unit32
- Turning off the Boiler33
- Line Pressure and Combustion Parameters34
- Minimum and Maximum Modulation Rates34
- Gas Line Pressure34
Gas Valve and Burner Set-Up34
- Throttle / Input Screw Adjustments35
- Combustion Calibration35
- Flue Gas Analysis and Adjustment35
- Gas Valve and Venturi Assembly36
- Water Quality37
- System Cleaning37
- Air Elimination37
Boiler and Heating System Piping37
- Boiler System Cleansers and Corrosion Inhibitors38
- Glycol, Snow Melt, and Oxygen Permeable Piping38
- Water Treatment38
- Dirt Removal38
- Near Boiler Plumbing (Central Heating)39
- Low Water Cutoff (LWCO)39
- Installation of Optional LWCO39
- Pressure Relief Valve39
- Near Boiler Piping (Central Heating – CH)40
- Circulating Pump Outputs41
- Internal Circulating Pump (FTV-Combi Only)41
- Minimum Flow Rate Requirements41
- Boiler System Plumbing41
- Activating Pressure Bypass Valve42
- Available Pump Head42
- Boiler Pipe Size Requirements43
- Head Loss Curve43
- Expansion Tank43
- Indirect Fired Water Heater43
- Plumbing Schematic – Single Central Heating Circulator44
- Plumbing Schematic – Multiple Central Heating Circulators45
- Plumbing Schematic – Primary/Secondary47
- Plumbing Schematic – Direct to Zones48
- DHW Preheat Mode49
- Warning on Thermostatic Mixing Valve49
- DHW Description of Operation49
Domestic Hot Water (Dhw) Piping - Combi Only49
- DHW Plumbing50
- Near Boiler DHW Piping50
- DHW Inlet & Outlet Connections50
- Check Valve50
- Controller Fuse / Blower Fuse51
- Wiring Connections51
- Wiring Terminal Access51
Field Wiring51
- Field Wiring Chart52
- Field Connections – Low Voltage53
- Field Connections – Line Voltage53
- Cascade Plumbing Schematic54
Cascade Instructions54
- DHW Pump (System)55
- Central Heat Demand Switch (Room Thermostat)55
- Communication Wiring55
- Establish Managing Boiler55
- Minimum Pipe Sizes for Multiple Boiler Applications56
- FTV Connection Diagram57
Wiring Schematics57
FTV Ladder-Logic Diagram58
Installation Checklist59
- Combustion Chamber Cleaning Procedure60
- Cleaning Checklist60
Annual Maintenance and Inspection60
- Warning on Crystalline Silica61
- Refractory Ceramic Fibers (RFC)61
- Warning on Potential Carcinogen61
- Handling Instructions for Refractory Ceramic Fibers (RCF)61
- De-Air Sequence62
- Main Screen62
- Installer Menu Access62
- Initial Power-Up62
Display Menu Guide62
- Control Console – Main Screen Diagram63
- User Menu Navigation63
- Installer Menu65
- Lockout & Error History68
- Blocking Errors69
- Lockouts69
- Fill – Low Water Pressure70
- Lockout and Error Code Descriptions71
- Controller Replacement Instructions74
- Appliance Type74
- Replacement Procedure74
- Appliance Selection Method74
- Diagnosing an Inoperative Boiler75
Troubleshooting75
- Display Normal but no DHW76
- Display Normal but DHW Is Not Hot Enough76
- Thermistor Resistance Vs. Temperature77
- Parts Overview78
- Cabinet & Controls Exploded View78
Parts List78
- Heat Exchanger, Water Piping & Sensors Exploded View79
- Gas Train / Burner Assembly Exploded View81
- Installation Kit Box Exploded View82
- Parts List82

NTI FTV150 - Plumbing Schematic - Multiple Central Heating Circulators

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