Keystone KS - Page 6

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Page 6

Figure 3. Location of Components, Size 399.

Figure 4. Location of Components, Size 500.

Table of Contents

Default Chapter2
- Table of Contents2
Section 1.4
General Information4
- Introduction4
- Model Identification4
- Appliance Overview4
- Warranty8
- Unpacking8
- Dimensions8
Section 2.10
Locating the Appliance10
- Locating Appliance for Correct Vent Distance from Outside Wall or Roof Termination10
Section 3.11
Venting and Combustion Air11
- Combustion Air11
- Combustion Air from Room11
- Ducted Combustion Air11
- Venting12
- Venting Requirements Unique to Canada13
- Locating Vent & Combustion Air Terminals14
- Side Wall Vent Terminal14
- Side Wall Combustion Air Terminal14
- Vertical Vent Terminal14
- Vertical Combustion Air Terminal14
- Installations in the Commonwealth of Massachusetts14
- Common Vent Test16
Section 4.17
Gas Supply and Piping17
Section 5.18
Pump Requirements18
- Keystone Boiler Flow and Head Requirements18
- Keystone Water Heater Flow and Head Requirements18
Section 6A19
Water Connections - KS Boiler19
- KS System Piping: Hot Supply Connections19
- KS Cold Water Make-Up19
- Freeze Protection19
- KS Suggested Piping Schematics20
- Recognized Chemicals20
Section 6B27
Water Connections - KW Water Heater27
- KW Water Quality27
- Piping Requirements27
- Cold Water Make-Up28
- Freeze Protection28
- KW Suggested Piping Schematics28
Section 7.30
Electrical Connections30
- Main Power30
- Pump Connections31
- Vac Transformer with Integral Circuit Breaker31
- Hydronic Call for Heat31
- Outdoor Air Temperature Sensor31
  - Domestic Hot Water Connection31
- System Sensor31
  - (Lead Lag/Cascading Operation Only)31
- External Control Connections31
- Optional Field Connections31
- Lead Lag/ Cascading Wiring Connections31
Section 8.35
Keystone Control Setup and Operation35
- Display Navigation35
- Ignition Control- Sequence of Events35
- Modulation Control36
- Pump Control36
- Anti-Short Cycle (ASC)36
- High Limit36
  - Outlet Water Temperature36
- Inlet Water Temperature36
- Heat Exchanger Temperature Rise36
- Stack Temperature36
- Domestic Hot Water Temperature36
- Lead Lag/Cascading36
- Lead Lag Setpoint37
- Lead Lag Master/Slave Selection37
- Lead Lag Address37
- Lead Lag Hysteresis37
- Lead Lag Base Load Setting37
- Boiler Pump Interrupt37
Section 9.38
Modes of Operation38
- Hydronic Heating Demand38
- Hydronic Heating with Outdoor Reset38
- Hydronic Heating with Domestic Hot Water (DHW) Priority38
- Hydronic Heating Using External Modulation Control38
- Hydronic Heating Using Local Lead-Lag/Cascading Feature39
- Hydronic Heating Using Local Lead-Lag/Cascading Feature with Indirect Hot Water39
- Warm Weather Shutdown39
- Domestic Hot Water Demand (KW Only)39
- Domestic Hot Water Heating Using External Modulation Control40
- Domestic Hot Water Heating Using Local Lead-Lag/Cascading Feature40
Section 10.41
Operating Instructions41
- Filling the Boiler System41
- Operating the Burner and Set up41
- Burner Operation41
- Boiler Setup and Adjustment42
- Shutting down Keystone42
- To Restart Keystone42
Section 11.44
Maintenance44
- System Maintenance44
- Appliance Maintenance and Component Description44
- Burner44
- Modulating Gas Valve / Venturi44
- Appliance Control44
- Ignitor Assembly45
- Flame Sensor45
- Transformer with Integral Circuit Breaker46
- Blower46
- Heat Exchanger Coils46
Section 12.47
- Gas Pressure Switches (Optional)47
- Gas Conversion47
Trouble Shooting47
- Sequence of Operation47
- Short Cycling47
- Error Codes47
Section 13.50
Replacement Parts50
- General Information50
- Parts List50