AHRI APEX, Installation, Operating And Service Instructions

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118
Figure
Number
Page
Number Description
Section I - Product Description, Specifications & Dimensional Data
Figure 1A 6 Apex - Model APX425
Figure 1B 7 Apex - Model APX525
Figure 1C 8 Apex - Models APX625 and APX725
Figure 1D 9 Apex - Model APX825
Section III - Pre-Installation and Boiler Mounting
Figure 2 12 Clearances To Combustible and Non-combustible Material
Figure 3 14 Stacking Boiler Attachment Bracket Placement
Section IV - Venting
Figure 4 17
Location of Vent Terminal Relative to Windows, Doors, Grades, Overhangs, Meters and Forced Air
Inlets - Two-Pipe System Vent Terminal (Shown), Two-Pipe System Air Intake Terminal (Not Shown)
Figure 5A 18 Direct Vent - Sidewall Tee Terminations
Figure 5B 19 Direct Vent - Sidewall Elbow Terminations, Size 625 through 825 only
Figure 6A 19 Direct Vent - Optional Vent Sidewall Snorkel Termination
Figure 6B 19 Direct Vent - Optional Vent & Combustion Air Sidewall Snorkel Terminations
Figure 7 20 Direct Vent - Vertical Terminations
Figure 8 20 Direct Vent - Vertical Terminations w/ Sloped Roof
Figure 9 22 Field Installation of CPVC/PVC Two-Pipe Vent System Connector
Figure 10 23 Near-Boiler Vent/Combustion Air Piping
Figure 11 24 CPVC/PVC Expansion Loop and Offset
Figure 12 24 Wall Penetration Clearances for PVC Vent Pipe
Figure 13 25 Rodent Screen Installation
Figure 14 28 Vent System Field Modification to Install PVC to PP Adapter (M&G/DuraVent Shown)
Figure 15 29 Flexible Vent in Masonry Chimney with Separate Combustion Air Intake
Figure 16 30 Field Installation of Two-Pipe Vent System Adapter for Stainless Steel
Figure 17 34 Multiple Boiler Direct Vent Termination
Section V - Condensate Disposal
Figure 18 36 Condensate Trap and Drain Line
Section VI - Water Piping and Trim
Figure 19A 37 Factory Supplied Piping & Trim Installation - APX425 and APX525
Figure 19B 38 Factory Supplied Piping & Trim Installation - APX625 and APX725
Figure 19C 39 Factory Supplied Piping & Trim Installation - APX825
Figure 20 45 Near Boiler Piping - Heating Only
Figure 21 46 Near Boiler Piping - Heating Plus Indirect Water Heater
Figure 22A 47
Isolation of the Boiler From Oxygenated Water with A Plate Heat Exchanger
(IWH Piped as Part of Boiler Piping)
Figure 22B 48
Isolation of the Boiler From Oxygenated Water with A Plate Heat Exchanger
(IWH Piped Off System Header)
Figure 23A 49 Multiple Boiler Water Piping w/Domestic Hot Water Heater (Page 1 of 2)
Figure 23B 50 Multiple Boiler Water Piping w/Domestic Hot Water Heater (Page 2 of 2)
Appendix A - Figures